Chameleon

Chameleon Commit Details

Date:2010-09-21 04:00:14 (8 years 8 months ago)
Author:Evan Lojewski
Commit:534
Parents: 533
Message:ACPI Pather is now a module. untested.
Changes:
D/branches/meklort/i386/libsaio/aml_generator.c
D/branches/meklort/i386/libsaio/acpi_patcher.c
D/branches/meklort/i386/libsaio/aml_generator.h
D/branches/meklort/i386/libsaio/acpi_patcher.h
A/branches/meklort/i386/modules/ACPIPatcher/Makefile
A/branches/meklort/i386/modules/ACPIPatcher/aml_generator.c
A/branches/meklort/i386/modules/ACPIPatcher
A/branches/meklort/i386/modules/ACPIPatcher/acpi_patcher.c
A/branches/meklort/i386/modules/ACPIPatcher/ACPIPatcher.c
A/branches/meklort/i386/modules/ACPIPatcher/aml_generator.h
A/branches/meklort/i386/modules/ACPIPatcher/acpi_patcher.h
M/branches/meklort/i386/libsaio/smbios_patcher.c
M/branches/meklort/i386/libsaio/smbios_patcher.h
M/branches/meklort/i386/libsaio/pci_root.c
M/branches/meklort/i386/modules/Makefile
M/branches/meklort/i386/libsaio/pci_root.h
M/branches/meklort/i386/libsaio/fake_efi.c
M/branches/meklort/i386/libsaio/Makefile

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branches/meklort/i386/libsaio/acpi_patcher.c
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/*
* Copyright 2008 mackerintel
*/
#include "libsaio.h"
#include "boot.h"
#include "bootstruct.h"
#include "acpi.h"
#include "efi_tables.h"
#include "fake_efi.h"
#include "acpi_patcher.h"
#include "platform.h"
#include "cpu.h"
#include "aml_generator.h"
#ifndef DEBUG_ACPI
#define DEBUG_ACPI 0
#endif
#if DEBUG_ACPI==2
#define DBG(x...) {printf(x); sleep(1);}
#elif DEBUG_ACPI==1
#define DBG(x...) printf(x)
#else
#define DBG(x...)
#endif
// Slice: New signature compare function
boolean_t tableSign(char *table, const char *sgn)
{
int i;
for (i=0; i<4; i++) {
if ((table[i] &~0x20) != (sgn[i] &~0x20)) {
return false;
}
}
return true;
}
/* Gets the ACPI 1.0 RSDP address */
static struct acpi_2_rsdp* getAddressOfAcpiTable()
{
/* TODO: Before searching the BIOS space we are supposed to search the first 1K of the EBDA */
void *acpi_addr = (void*)ACPI_RANGE_START;
for(; acpi_addr <= (void*)ACPI_RANGE_END; acpi_addr += 16)
{
if(*(uint64_t *)acpi_addr == ACPI_SIGNATURE_UINT64_LE)
{
uint8_t csum = checksum8(acpi_addr, 20);
if(csum == 0)
{
// Only return the table if it is a true version 1.0 table (Revision 0)
if(((struct acpi_2_rsdp*)acpi_addr)->Revision == 0)
return acpi_addr;
}
}
}
return NULL;
}
/* Gets the ACPI 2.0 RSDP address */
static struct acpi_2_rsdp* getAddressOfAcpi20Table()
{
/* TODO: Before searching the BIOS space we are supposed to search the first 1K of the EBDA */
void *acpi_addr = (void*)ACPI_RANGE_START;
for(; acpi_addr <= (void*)ACPI_RANGE_END; acpi_addr += 16)
{
if(*(uint64_t *)acpi_addr == ACPI_SIGNATURE_UINT64_LE)
{
uint8_t csum = checksum8(acpi_addr, 20);
/* Only assume this is a 2.0 or better table if the revision is greater than 0
* NOTE: ACPI 3.0 spec only seems to say that 1.0 tables have revision 1
* and that the current revision is 2.. I am going to assume that rev > 0 is 2.0.
*/
if(csum == 0 && (((struct acpi_2_rsdp*)acpi_addr)->Revision > 0))
{
uint8_t csum2 = checksum8(acpi_addr, sizeof(struct acpi_2_rsdp));
if(csum2 == 0)
return acpi_addr;
}
}
}
return NULL;
}
/** The folowing ACPI Table search algo. should be reused anywhere needed:*/
int search_and_get_acpi_fd(const char * filename, const char ** outDirspec)
{
int fd = 0;
char dirSpec[512] = "";
// Try finding 'filename' in the usual places
// Start searching any potential location for ACPI Table
sprintf(dirSpec, "%s", filename);
fd = open(dirSpec, 0);
if (fd < 0)
{
sprintf(dirSpec, "/Extra/%s", filename);
fd = open(dirSpec, 0);
if (fd < 0)
{
sprintf(dirSpec, "bt(0,0)/Extra/%s", filename);
fd = open(dirSpec, 0);
}
}
if (fd < 0)
{
// NOT FOUND:
verbose("ACPI table not found: %s\n", filename);
*dirSpec = '\0';
}
if (outDirspec) *outDirspec = dirSpec;
return fd;
}
void *loadACPITable (const char * filename)
{
void *tableAddr;
const char * dirspec=NULL;
int fd = search_and_get_acpi_fd(filename, &dirspec);
if (fd>=0)
{
tableAddr=(void*)AllocateKernelMemory(file_size (fd));
if (tableAddr)
{
if (read (fd, tableAddr, file_size (fd))!=file_size (fd))
{
printf("Couldn't read table %s\n",dirspec);
free (tableAddr);
close (fd);
return NULL;
}
DBG("Table %s read and stored at: %x\n", dirspec, tableAddr);
close (fd);
return tableAddr;
}
close (fd);
printf("Couldn't allocate memory for table \n", dirspec);
}
//printf("Couldn't find table %s\n", filename);
return NULL;
}
uint8_tacpi_cpu_count = 0;
char* acpi_cpu_name[32];
void get_acpi_cpu_names(unsigned char* dsdt, uint32_t length)
{
uint32_t i;
for (i=0; i<length-7; i++)
{
if (dsdt[i] == 0x5B && dsdt[i+1] == 0x83) // ProcessorOP
{
uint32_t offset = i + 3 + (dsdt[i+2] >> 6);
bool add_name = true;
uint8_t j;
for (j=0; j<4; j++)
{
char c = dsdt[offset+j];
if (!aml_isvalidchar(c))
{
add_name = false;
verbose("Invalid character found in ProcessorOP 0x%x!\n", c);
break;
}
}
if (add_name)
{
acpi_cpu_name[acpi_cpu_count] = malloc(4);
memcpy(acpi_cpu_name[acpi_cpu_count], dsdt+offset, 4);
i = offset + 5;
verbose("Found ACPI CPU: %c%c%c%c\n", acpi_cpu_name[acpi_cpu_count][0], acpi_cpu_name[acpi_cpu_count][1], acpi_cpu_name[acpi_cpu_count][2], acpi_cpu_name[acpi_cpu_count][3]);
if (++acpi_cpu_count == 32) return;
}
}
}
}
struct acpi_2_ssdt *generate_cst_ssdt(struct acpi_2_fadt* fadt)
{
char ssdt_header[] =
{
0x53, 0x53, 0x44, 0x54, 0xE7, 0x00, 0x00, 0x00, /* SSDT.... */
0x01, 0x17, 0x50, 0x6D, 0x52, 0x65, 0x66, 0x41, /* ..PmRefA */
0x43, 0x70, 0x75, 0x43, 0x73, 0x74, 0x00, 0x00, /* CpuCst.. */
0x00, 0x10, 0x00, 0x00, 0x49, 0x4E, 0x54, 0x4C, /* ....INTL */
0x31, 0x03, 0x10, 0x20 /* 1.._*/
};
char cstate_resource_template[] =
{
0x11, 0x14, 0x0A, 0x11, 0x82, 0x0C, 0x00, 0x7F,
0x01, 0x02, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x79, 0x00
};
if (Platform.CPU.Vendor != 0x756E6547) {
verbose ("Not an Intel platform: C-States will not be generated !!!\n");
return NULL;
}
if (fadt == NULL) {
verbose ("FACP not exists: C-States will not be generated !!!\n");
return NULL;
}
struct acpi_2_dsdt* dsdt = (void*)fadt->DSDT;
if (dsdt == NULL) {
verbose ("DSDT not found: C-States will not be generated !!!\n");
return NULL;
}
if (acpi_cpu_count == 0)
get_acpi_cpu_names((void*)dsdt, dsdt->Length);
if (acpi_cpu_count > 0)
{
bool c2_enabled = fadt->C2_Latency < 100;
bool c3_enabled = fadt->C3_Latency < 1000;
bool c4_enabled = false;
getBoolForKey(kEnableC4States, &c4_enabled, &bootInfo->bootConfig);
unsigned char cstates_count = 1 + (c2_enabled ? 1 : 0) + (c3_enabled ? 1 : 0);
struct aml_chunk* root = aml_create_node(NULL);
aml_add_buffer(root, ssdt_header, sizeof(ssdt_header)); // SSDT header
struct aml_chunk* scop = aml_add_scope(root, "\\_PR_");
struct aml_chunk* name = aml_add_name(scop, "CST_");
struct aml_chunk* pack = aml_add_package(name);
aml_add_byte(pack, cstates_count);
struct aml_chunk* tmpl = aml_add_package(pack);
cstate_resource_template[11] = 0x00; // C1
aml_add_buffer(tmpl, cstate_resource_template, sizeof(cstate_resource_template));
aml_add_byte(tmpl, 0x01); // C1
aml_add_byte(tmpl, 0x01); // Latency
aml_add_word(tmpl, 0x03e8); // Power
// C2
if (c2_enabled)
{
tmpl = aml_add_package(pack);
cstate_resource_template[11] = 0x10; // C2
aml_add_buffer(tmpl, cstate_resource_template, sizeof(cstate_resource_template));
aml_add_byte(tmpl, 0x02); // C2
aml_add_byte(tmpl, fadt->C2_Latency);
aml_add_word(tmpl, 0x01f4); // Power
}
// C4
if (c4_enabled)
{
tmpl = aml_add_package(pack);
cstate_resource_template[11] = 0x30; // C4
aml_add_buffer(tmpl, cstate_resource_template, sizeof(cstate_resource_template));
aml_add_byte(tmpl, 0x04); // C4
aml_add_word(tmpl, fadt->C3_Latency / 2); // TODO: right latency for C4
aml_add_byte(tmpl, 0xfa); // Power
}
else
// C3
if (c3_enabled)
{
tmpl = aml_add_package(pack);
cstate_resource_template[11] = 0x20; // C3
aml_add_buffer(tmpl, cstate_resource_template, sizeof(cstate_resource_template));
aml_add_byte(tmpl, 0x03); // C3
aml_add_word(tmpl, fadt->C3_Latency);
aml_add_word(tmpl, 0x015e); // Power
}
// Aliaces
int i;
for (i = 0; i < acpi_cpu_count; i++)
{
char name[9];
sprintf(name, "_PR_%c%c%c%c", acpi_cpu_name[i][0], acpi_cpu_name[i][1], acpi_cpu_name[i][2], acpi_cpu_name[i][3]);
scop = aml_add_scope(root, name);
aml_add_alias(scop, "CST_", "_CST");
}
aml_calculate_size(root);
struct acpi_2_ssdt *ssdt = (struct acpi_2_ssdt *)AllocateKernelMemory(root->Size);
aml_write_node(root, (void*)ssdt, 0);
ssdt->Length = root->Size;
ssdt->Checksum = 0;
ssdt->Checksum = 256 - checksum8(ssdt, ssdt->Length);
aml_destroy_node(root);
//dumpPhysAddr("C-States SSDT content: ", ssdt, ssdt->Length);
verbose ("SSDT with CPU C-States generated successfully\n");
return ssdt;
}
else
{
verbose ("ACPI CPUs not found: C-States not generated !!!\n");
}
return NULL;
}
struct acpi_2_ssdt *generate_pss_ssdt(struct acpi_2_dsdt* dsdt)
{
char ssdt_header[] =
{
0x53, 0x53, 0x44, 0x54, 0x7E, 0x00, 0x00, 0x00, /* SSDT.... */
0x01, 0x6A, 0x50, 0x6D, 0x52, 0x65, 0x66, 0x00, /* ..PmRef. */
0x43, 0x70, 0x75, 0x50, 0x6D, 0x00, 0x00, 0x00, /* CpuPm... */
0x00, 0x30, 0x00, 0x00, 0x49, 0x4E, 0x54, 0x4C, /* .0..INTL */
0x31, 0x03, 0x10, 0x20,/* 1.._*/
};
if (Platform.CPU.Vendor != 0x756E6547) {
verbose ("Not an Intel platform: P-States will not be generated !!!\n");
return NULL;
}
if (!(Platform.CPU.Features & CPU_FEATURE_MSR)) {
verbose ("Unsupported CPU: P-States will not be generated !!!\n");
return NULL;
}
if (acpi_cpu_count == 0)
get_acpi_cpu_names((void*)dsdt, dsdt->Length);
if (acpi_cpu_count > 0)
{
struct p_state initial, maximum, minimum, p_states[32];
uint8_t p_states_count = 0;
// Retrieving P-States, ported from code by superhai (c)
switch (Platform.CPU.Family) {
case 0x06:
{
switch (Platform.CPU.Model)
{
case 0x0D: // ?
case CPU_MODEL_YONAH: // Yonah
case CPU_MODEL_MEROM: // Merom
case CPU_MODEL_PENRYN: // Penryn
case CPU_MODEL_ATOM: // Intel Atom (45nm)
{
bool cpu_dynamic_fsb = false;
if (rdmsr64(MSR_IA32_EXT_CONFIG) & (1 << 27))
{
wrmsr64(MSR_IA32_EXT_CONFIG, (rdmsr64(MSR_IA32_EXT_CONFIG) | (1 << 28)));
delay(1);
cpu_dynamic_fsb = rdmsr64(MSR_IA32_EXT_CONFIG) & (1 << 28);
}
bool cpu_noninteger_bus_ratio = (rdmsr64(MSR_IA32_PERF_STATUS) & (1ULL << 46));
initial.Control = rdmsr64(MSR_IA32_PERF_STATUS);
maximum.Control = ((rdmsr64(MSR_IA32_PERF_STATUS) >> 32) & 0x1F3F) | (0x4000 * cpu_noninteger_bus_ratio);
maximum.CID = ((maximum.FID & 0x1F) << 1) | cpu_noninteger_bus_ratio;
minimum.FID = ((rdmsr64(MSR_IA32_PERF_STATUS) >> 24) & 0x1F) | (0x80 * cpu_dynamic_fsb);
minimum.VID = ((rdmsr64(MSR_IA32_PERF_STATUS) >> 48) & 0x3F);
if (minimum.FID == 0)
{
uint64_t msr;
uint8_t i;
// Probe for lowest fid
for (i = maximum.FID; i >= 0x6; i--)
{
msr = rdmsr64(MSR_IA32_PERF_CONTROL);
wrmsr64(MSR_IA32_PERF_CONTROL, (msr & 0xFFFFFFFFFFFF0000ULL) | (i << 8) | minimum.VID);
intel_waitforsts();
minimum.FID = (rdmsr64(MSR_IA32_PERF_STATUS) >> 8) & 0x1F;
delay(1);
}
msr = rdmsr64(MSR_IA32_PERF_CONTROL);
wrmsr64(MSR_IA32_PERF_CONTROL, (msr & 0xFFFFFFFFFFFF0000ULL) | (maximum.FID << 8) | maximum.VID);
intel_waitforsts();
}
if (minimum.VID == maximum.VID)
{
uint64_t msr;
uint8_t i;
// Probe for lowest vid
for (i = maximum.VID; i > 0xA; i--)
{
msr = rdmsr64(MSR_IA32_PERF_CONTROL);
wrmsr64(MSR_IA32_PERF_CONTROL, (msr & 0xFFFFFFFFFFFF0000ULL) | (minimum.FID << 8) | i);
intel_waitforsts();
minimum.VID = rdmsr64(MSR_IA32_PERF_STATUS) & 0x3F;
delay(1);
}
msr = rdmsr64(MSR_IA32_PERF_CONTROL);
wrmsr64(MSR_IA32_PERF_CONTROL, (msr & 0xFFFFFFFFFFFF0000ULL) | (maximum.FID << 8) | maximum.VID);
intel_waitforsts();
}
minimum.CID = ((minimum.FID & 0x1F) << 1) >> cpu_dynamic_fsb;
// Sanity check
if (maximum.CID < minimum.CID)
{
DBG("Insane FID values!");
p_states_count = 1;
}
else
{
// Finalize P-States
// Find how many P-States machine supports
p_states_count = maximum.CID - minimum.CID + 1;
if (p_states_count > 32)
p_states_count = 32;
uint8_t vidstep;
uint8_t i = 0, u, invalid = 0;
vidstep = ((maximum.VID << 2) - (minimum.VID << 2)) / (p_states_count - 1);
for (u = 0; u < p_states_count; u++)
{
i = u - invalid;
p_states[i].CID = maximum.CID - u;
p_states[i].FID = (p_states[i].CID >> 1);
if (p_states[i].FID < 0x6)
{
if (cpu_dynamic_fsb)
p_states[i].FID = (p_states[i].FID << 1) | 0x80;
}
else if (cpu_noninteger_bus_ratio)
{
p_states[i].FID = p_states[i].FID | (0x40 * (p_states[i].CID & 0x1));
}
if (i && p_states[i].FID == p_states[i-1].FID)
invalid++;
p_states[i].VID = ((maximum.VID << 2) - (vidstep * u)) >> 2;
uint32_t multiplier = p_states[i].FID & 0x1f;// = 0x08
bool half = p_states[i].FID & 0x40;// = 0x01
bool dfsb = p_states[i].FID & 0x80;// = 0x00
uint32_t fsb = Platform.CPU.FSBFrequency / 1000000; // = 400
uint32_t halffsb = (fsb + 1) >> 1;// = 200
uint32_t frequency = (multiplier * fsb);// = 3200
p_states[i].Frequency = (frequency + (half * halffsb)) >> dfsb;// = 3200 + 200 = 3400
}
p_states_count -= invalid;
}
} break;
case CPU_MODEL_FIELDS:
case CPU_MODEL_DALES:
case CPU_MODEL_DALES_32NM:
case CPU_MODEL_NEHALEM:
case CPU_MODEL_NEHALEM_EX:
case CPU_MODEL_WESTMERE:
case CPU_MODEL_WESTMERE_EX:
default:
verbose ("Unsupported CPU: P-States not generated !!!\n");
break;
}
}
}
// Generating SSDT
if (p_states_count > 0)
{
int i;
struct aml_chunk* root = aml_create_node(NULL);
aml_add_buffer(root, ssdt_header, sizeof(ssdt_header)); // SSDT header
struct aml_chunk* scop = aml_add_scope(root, "\\_PR_");
struct aml_chunk* name = aml_add_name(scop, "PSS_");
struct aml_chunk* pack = aml_add_package(name);
for (i = 0; i < p_states_count; i++)
{
struct aml_chunk* pstt = aml_add_package(pack);
aml_add_dword(pstt, p_states[i].Frequency);
aml_add_dword(pstt, 0x00000000); // Power
aml_add_dword(pstt, 0x0000000A); // Latency
aml_add_dword(pstt, 0x0000000A); // Latency
aml_add_dword(pstt, p_states[i].Control);
aml_add_dword(pstt, i+1); // Status
}
// Add aliaces
for (i = 0; i < acpi_cpu_count; i++)
{
char name[9];
sprintf(name, "_PR_%c%c%c%c", acpi_cpu_name[i][0], acpi_cpu_name[i][1], acpi_cpu_name[i][2], acpi_cpu_name[i][3]);
scop = aml_add_scope(root, name);
aml_add_alias(scop, "PSS_", "_PSS");
}
aml_calculate_size(root);
struct acpi_2_ssdt *ssdt = (struct acpi_2_ssdt *)AllocateKernelMemory(root->Size);
aml_write_node(root, (void*)ssdt, 0);
ssdt->Length = root->Size;
ssdt->Checksum = 0;
ssdt->Checksum = 256 - checksum8(ssdt, ssdt->Length);
aml_destroy_node(root);
//dumpPhysAddr("P-States SSDT content: ", ssdt, ssdt->Length);
verbose ("SSDT with CPU P-States generated successfully\n");
return ssdt;
}
}
else
{
verbose ("ACPI CPUs not found: P-States not generated !!!\n");
}
return NULL;
}
struct acpi_2_fadt *patch_fadt(struct acpi_2_fadt *fadt, struct acpi_2_dsdt *new_dsdt)
{
extern void setupSystemType();
struct acpi_2_fadt *fadt_mod;
bool fadt_rev2_needed = false;
bool fix_restart;
const char * value;
// Restart Fix
if (Platform.CPU.Vendor == 0x756E6547) {/* Intel */
fix_restart = true;
getBoolForKey(kRestartFix, &fix_restart, &bootInfo->bootConfig);
} else {
verbose ("Not an Intel platform: Restart Fix not applied !!!\n");
fix_restart = false;
}
if (fix_restart) fadt_rev2_needed = true;
// Allocate new fadt table
if (fadt->Length < 0x84 && fadt_rev2_needed)
{
fadt_mod=(struct acpi_2_fadt *)AllocateKernelMemory(0x84);
memcpy(fadt_mod, fadt, fadt->Length);
fadt_mod->Length = 0x84;
fadt_mod->Revision = 0x02; // FADT rev 2 (ACPI 1.0B MS extensions)
}
else
{
fadt_mod=(struct acpi_2_fadt *)AllocateKernelMemory(fadt->Length);
memcpy(fadt_mod, fadt, fadt->Length);
}
// Determine system type / PM_Model
if ( (value=getStringForKey(kSystemType, &bootInfo->bootConfig))!=NULL)
{
if (Platform.Type > 6)
{
if(fadt_mod->PM_Profile<=6)
Platform.Type = fadt_mod->PM_Profile; // get the fadt if correct
else
Platform.Type = 1;/* Set a fixed value (Desktop) */
verbose("Error: system-type must be 0..6. Defaulting to %d !\n", Platform.Type);
}
else
Platform.Type = (unsigned char) strtoul(value, NULL, 10);
}
// Set PM_Profile from System-type if only user wanted this value to be forced
if (fadt_mod->PM_Profile != Platform.Type)
{
if (value)
{ // user has overriden the SystemType so take care of it in FACP
verbose("FADT: changing PM_Profile from 0x%02x to 0x%02x\n", fadt_mod->PM_Profile, Platform.Type);
fadt_mod->PM_Profile = Platform.Type;
}
else
{ // PM_Profile has a different value and no override has been set, so reflect the user value to ioregs
Platform.Type = fadt_mod->PM_Profile <= 6 ? fadt_mod->PM_Profile : 1;
}
}
// We now have to write the systemm-type in ioregs: we cannot do it before in setupDeviceTree()
// because we need to take care of facp original content, if it is correct.
setupSystemType();
// Patch FADT to fix restart
if (fix_restart)
{
fadt_mod->Flags|= 0x400;
fadt_mod->Reset_SpaceID= 0x01; // System I/O
fadt_mod->Reset_BitWidth= 0x08; // 1 byte
fadt_mod->Reset_BitOffset= 0x00; // Offset 0
fadt_mod->Reset_AccessWidth= 0x01; // Byte access
fadt_mod->Reset_Address= 0x0cf9; // Address of the register
fadt_mod->Reset_Value= 0x06; // Value to write to reset the system
verbose("FADT: Restart Fix applied!\n");
}
// Patch DSDT Address if we have loaded DSDT.aml
if(new_dsdt)
{
DBG("DSDT: Old @%x,%x, ",fadt_mod->DSDT,fadt_mod->X_DSDT);
fadt_mod->DSDT=(uint32_t)new_dsdt;
if ((uint32_t)(&(fadt_mod->X_DSDT))-(uint32_t)fadt_mod+8<=fadt_mod->Length)
fadt_mod->X_DSDT=(uint32_t)new_dsdt;
DBG("New @%x,%x\n",fadt_mod->DSDT,fadt_mod->X_DSDT);
verbose("FADT: Using custom DSDT!\n");
}
// Correct the checksum
fadt_mod->Checksum=0;
fadt_mod->Checksum=256-checksum8(fadt_mod,fadt_mod->Length);
return fadt_mod;
}
/* Setup ACPI without replacing DSDT. */
int setupAcpiNoMod()
{
//addConfigurationTable(&gEfiAcpiTableGuid, getAddressOfAcpiTable(), "ACPI");
//addConfigurationTable(&gEfiAcpi20TableGuid, getAddressOfAcpi20Table(), "ACPI_20");
/* XXX aserebln why uint32 cast if pointer is uint64 ? */
acpi10_p = (uint32_t)getAddressOfAcpiTable();
acpi20_p = (uint32_t)getAddressOfAcpi20Table();
addConfigurationTable(&gEfiAcpiTableGuid, &acpi10_p, "ACPI");
if(acpi20_p) addConfigurationTable(&gEfiAcpi20TableGuid, &acpi20_p, "ACPI_20");
return 1;
}
/* Setup ACPI. Replace DSDT if DSDT.aml is found */
int setupAcpi(void)
{
int version;
void *new_dsdt;
const char *filename;
char dirSpec[128];
int len = 0;
// Try using the file specified with the DSDT option
if (getValueForKey(kDSDT, &filename, &len, &bootInfo->bootConfig))
{
sprintf(dirSpec, filename);
}
else
{
sprintf(dirSpec, "DSDT.aml");
}
// Load replacement DSDT
new_dsdt = loadACPITable(dirSpec);
// Mozodojo: going to patch FACP and load SSDT's even if DSDT.aml is not present
/*if (!new_dsdt)
{
return setupAcpiNoMod();
}*/
// Mozodojo: Load additional SSDTs
struct acpi_2_ssdt *new_ssdt[32]; // 30 + 2 additional tables for pss & cst
int ssdt_count=0;
// SSDT Options
bool drop_ssdt=false, generate_pstates=false, generate_cstates=false;
getBoolForKey(kDropSSDT, &drop_ssdt, &bootInfo->bootConfig);
getBoolForKey(kGeneratePStates, &generate_pstates, &bootInfo->bootConfig);
getBoolForKey(kGenerateCStates, &generate_cstates, &bootInfo->bootConfig);
{
int i;
for (i=0; i<30; i++)
{
char filename[512];
sprintf(filename, i>0?"SSDT-%d.aml":"SSDT.aml", i);
if(new_ssdt[ssdt_count] = loadACPITable(filename))
{
ssdt_count++;
}
else
{
break;
}
}
}
// Do the same procedure for both versions of ACPI
for (version=0; version<2; version++) {
struct acpi_2_rsdp *rsdp, *rsdp_mod;
struct acpi_2_rsdt *rsdt, *rsdt_mod;
int rsdplength;
// Find original rsdp
rsdp=(struct acpi_2_rsdp *)(version?getAddressOfAcpi20Table():getAddressOfAcpiTable());
if (!rsdp)
{
DBG("No ACPI version %d found. Ignoring\n", version+1);
if (version)
addConfigurationTable(&gEfiAcpi20TableGuid, NULL, "ACPI_20");
else
addConfigurationTable(&gEfiAcpiTableGuid, NULL, "ACPI");
continue;
}
rsdplength=version?rsdp->Length:20;
DBG("RSDP version %d found @%x. Length=%d\n",version+1,rsdp,rsdplength);
/* FIXME: no check that memory allocation succeeded
* Copy and patch RSDP,RSDT, XSDT and FADT
* For more info see ACPI Specification pages 110 and following
*/
rsdp_mod=(struct acpi_2_rsdp *) AllocateKernelMemory(rsdplength);
memcpy(rsdp_mod, rsdp, rsdplength);
rsdt=(struct acpi_2_rsdt *)(rsdp->RsdtAddress);
DBG("RSDT @%x, Length %d\n",rsdt, rsdt->Length);
if (rsdt && (uint32_t)rsdt !=0xffffffff && rsdt->Length<0x10000)
{
uint32_t *rsdt_entries;
int rsdt_entries_num;
int dropoffset=0, i;
// mozo: using malloc cos I didn't found how to free already allocated kernel memory
rsdt_mod=(struct acpi_2_rsdt *)malloc(rsdt->Length);
memcpy (rsdt_mod, rsdt, rsdt->Length);
rsdp_mod->RsdtAddress=(uint32_t)rsdt_mod;
rsdt_entries_num=(rsdt_mod->Length-sizeof(struct acpi_2_rsdt))/4;
rsdt_entries=(uint32_t *)(rsdt_mod+1);
for (i=0;i<rsdt_entries_num;i++)
{
char *table=(char *)(rsdt_entries[i]);
if (!table)
continue;
DBG("TABLE %c%c%c%c,",table[0],table[1],table[2],table[3]);
rsdt_entries[i-dropoffset]=rsdt_entries[i];
if (drop_ssdt && tableSign(table, "SSDT"))
{
dropoffset++;
continue;
}
if (tableSign(table, "DSDT"))
{
DBG("DSDT found\n");
if(new_dsdt)
rsdt_entries[i-dropoffset]=(uint32_t)new_dsdt;
continue;
}
if (tableSign(table, "FACP"))
{
struct acpi_2_fadt *fadt, *fadt_mod;
fadt=(struct acpi_2_fadt *)rsdt_entries[i];
DBG("FADT found @%x, Length %d\n",fadt, fadt->Length);
if (!fadt || (uint32_t)fadt == 0xffffffff || fadt->Length>0x10000)
{
printf("FADT incorrect. Not modified\n");
continue;
}
fadt_mod = patch_fadt(fadt, new_dsdt);
rsdt_entries[i-dropoffset]=(uint32_t)fadt_mod;
// Generate _CST SSDT
if (generate_cstates && (new_ssdt[ssdt_count] = generate_cst_ssdt(fadt_mod)))
{
generate_cstates = false; // Generate SSDT only once!
ssdt_count++;
}
// Generating _PSS SSDT
if (generate_pstates && (new_ssdt[ssdt_count] = generate_pss_ssdt((void*)fadt_mod->DSDT)))
{
generate_pstates = false; // Generate SSDT only once!
ssdt_count++;
}
continue;
}
}
DBG("\n");
// Allocate rsdt in Kernel memory area
rsdt_mod->Length += 4*ssdt_count - 4*dropoffset;
struct acpi_2_rsdt *rsdt_copy = (struct acpi_2_rsdt *)AllocateKernelMemory(rsdt_mod->Length);
memcpy (rsdt_copy, rsdt_mod, rsdt_mod->Length);
free(rsdt_mod); rsdt_mod = rsdt_copy;
rsdp_mod->RsdtAddress=(uint32_t)rsdt_mod;
rsdt_entries_num=(rsdt_mod->Length-sizeof(struct acpi_2_rsdt))/4;
rsdt_entries=(uint32_t *)(rsdt_mod+1);
// Mozodojo: Insert additional SSDTs into RSDT
if(ssdt_count>0)
{
int j;
for (j=0; j<ssdt_count; j++)
rsdt_entries[i-dropoffset+j]=(uint32_t)new_ssdt[j];
verbose("RSDT: Added %d SSDT table(s)\n", ssdt_count);
}
// Correct the checksum of RSDT
DBG("RSDT: Original checksum %d, ", rsdt_mod->Checksum);
rsdt_mod->Checksum=0;
rsdt_mod->Checksum=256-checksum8(rsdt_mod,rsdt_mod->Length);
DBG("New checksum %d at %x\n", rsdt_mod->Checksum,rsdt_mod);
}
else
{
rsdp_mod->RsdtAddress=0;
printf("RSDT not found or RSDT incorrect\n");
}
if (version)
{
struct acpi_2_xsdt *xsdt, *xsdt_mod;
// FIXME: handle 64-bit address correctly
xsdt=(struct acpi_2_xsdt*) ((uint32_t)rsdp->XsdtAddress);
DBG("XSDT @%x;%x, Length=%d\n", (uint32_t)(rsdp->XsdtAddress>>32),(uint32_t)rsdp->XsdtAddress,
xsdt->Length);
if (xsdt && (uint64_t)rsdp->XsdtAddress<0xffffffff && xsdt->Length<0x10000)
{
uint64_t *xsdt_entries;
int xsdt_entries_num, i;
int dropoffset=0;
// mozo: using malloc cos I didn't found how to free already allocated kernel memory
xsdt_mod=(struct acpi_2_xsdt*)malloc(xsdt->Length);
memcpy(xsdt_mod, xsdt, xsdt->Length);
rsdp_mod->XsdtAddress=(uint32_t)xsdt_mod;
xsdt_entries_num=(xsdt_mod->Length-sizeof(struct acpi_2_xsdt))/8;
xsdt_entries=(uint64_t *)(xsdt_mod+1);
for (i=0;i<xsdt_entries_num;i++)
{
char *table=(char *)((uint32_t)(xsdt_entries[i]));
if (!table)
continue;
xsdt_entries[i-dropoffset]=xsdt_entries[i];
if (drop_ssdt && tableSign(table, "SSDT"))
{
dropoffset++;
continue;
}
if (tableSign(table, "DSDT"))
{
DBG("DSDT found\n");
if (new_dsdt)
xsdt_entries[i-dropoffset]=(uint32_t)new_dsdt;
DBG("TABLE %c%c%c%c@%x,",table[0],table[1],table[2],table[3],xsdt_entries[i]);
continue;
}
if (tableSign(table, "FACP"))
{
struct acpi_2_fadt *fadt, *fadt_mod;
fadt=(struct acpi_2_fadt *)(uint32_t)xsdt_entries[i];
DBG("FADT found @%x,%x, Length %d\n",(uint32_t)(xsdt_entries[i]>>32),fadt,
fadt->Length);
if (!fadt || (uint64_t)xsdt_entries[i] >= 0xffffffff || fadt->Length>0x10000)
{
verbose("FADT incorrect or after 4GB. Dropping XSDT\n");
goto drop_xsdt;
}
fadt_mod = patch_fadt(fadt, new_dsdt);
xsdt_entries[i-dropoffset]=(uint32_t)fadt_mod;
DBG("TABLE %c%c%c%c@%x,",table[0],table[1],table[2],table[3],xsdt_entries[i]);
// Generate _CST SSDT
if (generate_cstates && (new_ssdt[ssdt_count] = generate_cst_ssdt(fadt_mod)))
{
generate_cstates = false; // Generate SSDT only once!
ssdt_count++;
}
// Generating _PSS SSDT
if (generate_pstates && (new_ssdt[ssdt_count] = generate_pss_ssdt((void*)fadt_mod->DSDT)))
{
generate_pstates = false; // Generate SSDT only once!
ssdt_count++;
}
continue;
}
DBG("TABLE %c%c%c%c@%x,",table[0],table[1],table[2],table[3],xsdt_entries[i]);
}
// Allocate xsdt in Kernel memory area
xsdt_mod->Length += 8*ssdt_count - 8*dropoffset;
struct acpi_2_xsdt *xsdt_copy = (struct acpi_2_xsdt *)AllocateKernelMemory(xsdt_mod->Length);
memcpy(xsdt_copy, xsdt_mod, xsdt_mod->Length);
free(xsdt_mod); xsdt_mod = xsdt_copy;
rsdp_mod->XsdtAddress=(uint32_t)xsdt_mod;
xsdt_entries_num=(xsdt_mod->Length-sizeof(struct acpi_2_xsdt))/8;
xsdt_entries=(uint64_t *)(xsdt_mod+1);
// Mozodojo: Insert additional SSDTs into XSDT
if(ssdt_count>0)
{
int j;
for (j=0; j<ssdt_count; j++)
xsdt_entries[i-dropoffset+j]=(uint32_t)new_ssdt[j];
verbose("Added %d SSDT table(s) into XSDT\n", ssdt_count);
}
// Correct the checksum of XSDT
xsdt_mod->Checksum=0;
xsdt_mod->Checksum=256-checksum8(xsdt_mod,xsdt_mod->Length);
}
else
{
drop_xsdt:
DBG("About to drop XSDT\n");
/*FIXME: Now we just hope that if MacOS doesn't find XSDT it reverts to RSDT.
* A Better strategy would be to generate
*/
rsdp_mod->XsdtAddress=0xffffffffffffffffLL;
verbose("XSDT not found or XSDT incorrect\n");
}
}
// Correct the checksum of RSDP
DBG("RSDP: Original checksum %d, ", rsdp_mod->Checksum);
rsdp_mod->Checksum=0;
rsdp_mod->Checksum=256-checksum8(rsdp_mod,20);
DBG("New checksum %d\n", rsdp_mod->Checksum);
if (version)
{
DBG("RSDP: Original extended checksum %d", rsdp_mod->ExtendedChecksum);
rsdp_mod->ExtendedChecksum=0;
rsdp_mod->ExtendedChecksum=256-checksum8(rsdp_mod,rsdp_mod->Length);
DBG("New extended checksum %d\n", rsdp_mod->ExtendedChecksum);
}
//verbose("Patched ACPI version %d DSDT\n", version+1);
if (version)
{
/* XXX aserebln why uint32 cast if pointer is uint64 ? */
acpi20_p = (uint32_t)rsdp_mod;
addConfigurationTable(&gEfiAcpi20TableGuid, &acpi20_p, "ACPI_20");
}
else
{
/* XXX aserebln why uint32 cast if pointer is uint64 ? */
acpi10_p = (uint32_t)rsdp_mod;
addConfigurationTable(&gEfiAcpiTableGuid, &acpi10_p, "ACPI");
}
}
#if DEBUG_ACPI
printf("Press a key to continue... (DEBUG_ACPI)\n");
getc();
#endif
return 1;
}
branches/meklort/i386/libsaio/acpi_patcher.h
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/*
* Copyright 2008 mackerintel
*/
#ifndef __LIBSAIO_ACPI_PATCHER_H
#define __LIBSAIO_ACPI_PATCHER_H
#include "libsaio.h"
uint64_t acpi10_p;
uint64_t acpi20_p;
uint64_t smbios_p;
extern int setupAcpi();
extern EFI_STATUS addConfigurationTable();
extern EFI_GUID gEfiAcpiTableGuid;
extern EFI_GUID gEfiAcpi20TableGuid;
struct p_state
{
union
{
uint16_t Control;
struct
{
uint8_t VID;// Voltage ID
uint8_t FID;// Frequency ID
};
};
uint8_tCID;// Compare ID
uint32_tFrequency;
};
#endif /* !__LIBSAIO_ACPI_PATCHER_H */
branches/meklort/i386/libsaio/aml_generator.c
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/*
* aml_generator.c
* Chameleon
*
* Created by Mozodojo on 20/07/10.
* Copyright 2010 mozo. All rights reserved.
*
*/
#include "aml_generator.h"
bool aml_add_to_parent(struct aml_chunk* parent, struct aml_chunk* node)
{
if (parent && node)
{
switch (parent->Type)
{
case AML_CHUNK_NONE:
case AML_CHUNK_BYTE:
case AML_CHUNK_WORD:
case AML_CHUNK_DWORD:
case AML_CHUNK_QWORD:
case AML_CHUNK_ALIAS:
verbose("aml_add_to_parent: Node isn't supports child nodes!");
return FALSE;
case AML_CHUNK_NAME:
if (parent->First)
{
verbose("aml_add_to_parent: Name node could have only one child node!");
return FALSE;
}
break;
default:
break;
}
if (!parent->First)
parent->First = node;
if (parent->Last)
parent->Last->Next = node;
parent->Last = node;
return TRUE;
}
return FALSE;
}
struct aml_chunk* aml_create_node(struct aml_chunk* parent)
{
struct aml_chunk* node = (struct aml_chunk*)malloc(sizeof(struct aml_chunk));
aml_add_to_parent(parent, node);
return node;
}
void aml_destroy_node(struct aml_chunk* node)
{
// Delete child nodes
struct aml_chunk* child = node->First;
while (child)
{
struct aml_chunk* next = child->Next;
if (child->Buffer)
free(child->Buffer);
free(child);
child = next;
}
// Free node
if (node->Buffer)
free(node->Buffer);
free(node);
}
struct aml_chunk* aml_add_buffer(struct aml_chunk* parent, const char* buffer, unsigned int size)
{
struct aml_chunk* node = aml_create_node(parent);
if (node)
{
node->Type = AML_CHUNK_NONE;
node->Length = size;
node->Buffer = malloc(node->Length);
memcpy(node->Buffer, buffer, node->Length);
}
return node;
}
struct aml_chunk* aml_add_byte(struct aml_chunk* parent, unsigned char value)
{
struct aml_chunk* node = aml_create_node(parent);
if (node)
{
node->Type = AML_CHUNK_BYTE;
node->Length = 1;
node->Buffer = malloc(node->Length);
node->Buffer[0] = value;
}
return node;
}
struct aml_chunk* aml_add_word(struct aml_chunk* parent, unsigned int value)
{
struct aml_chunk* node = aml_create_node(parent);
if (node)
{
node->Type = AML_CHUNK_WORD;
node->Length = 2;
node->Buffer = malloc(node->Length);
node->Buffer[0] = value & 0xff;
node->Buffer[1] = value >> 8;
}
return node;
}
struct aml_chunk* aml_add_dword(struct aml_chunk* parent, unsigned long value)
{
struct aml_chunk* node = aml_create_node(parent);
if (node)
{
node->Type = AML_CHUNK_DWORD;
node->Length = 4;
node->Buffer = malloc(node->Length);
node->Buffer[0] = value & 0xff;
node->Buffer[1] = (value >> 8) & 0xff;
node->Buffer[2] = (value >> 16) & 0xff;
node->Buffer[3] = (value >> 24) & 0xff;
}
return node;
}
struct aml_chunk* aml_add_qword(struct aml_chunk* parent, unsigned long long value)
{
struct aml_chunk* node = aml_create_node(parent);
if (node)
{
node->Type = AML_CHUNK_QWORD;
node->Length = 8;
node->Buffer = malloc(node->Length);
node->Buffer[0] = value & 0xff;
node->Buffer[1] = (value >> 8) & 0xff;
node->Buffer[2] = (value >> 16) & 0xff;
node->Buffer[3] = (value >> 24) & 0xff;
node->Buffer[4] = (value >> 32) & 0xff;
node->Buffer[5] = (value >> 40) & 0xff;
node->Buffer[6] = (value >> 48) & 0xff;
node->Buffer[7] = (value >> 56) & 0xff;
}
return node;
}
unsigned int aml_fill_simple_name(char* buffer, const char* name)
{
if (strlen(name) < 4)
{
verbose("aml_fill_simple_name: simple name %s has incorrect lengh! Must be 4", name);
return 0;
}
memcpy(buffer, name, 4);
return 4;
}
unsigned int aml_fill_name(struct aml_chunk* node, const char* name)
{
if (!node)
return 0;
int len = strlen(name), offset = 0, count = len / 4;
if ((len % 4) > 1 || count == 0)
{
verbose("aml_fill_name: pathname %s has incorrect length! Must be 4, 8, 12, 16 etc.", name);
return 0;
}
unsigned int root = 0;
if ((len % 4) == 1 && name[0] == '\\')
root++;
if (count == 1)
{
node->Length = 4 + root;
node->Buffer = malloc(node->Length);
memcpy(node->Buffer, name, 4 + root);
return node->Length;
}
if (count == 2)
{
node->Length = 2 + 8;
node->Buffer = malloc(node->Length);
node->Buffer[offset++] = 0x5c; // Root Char
node->Buffer[offset++] = 0x2e; // Double name
memcpy(node->Buffer+offset, name + root, 8);
return node->Length;
}
node->Length = 3 + count*4;
node->Buffer = malloc(node->Length);
node->Buffer[offset++] = 0x5c; // Root Char
node->Buffer[offset++] = 0x2f; // Multi name
node->Buffer[offset++] = count; // Names count
memcpy(node->Buffer+offset, name + root, count*4);
return node->Length;
}
struct aml_chunk* aml_add_scope(struct aml_chunk* parent, const char* name)
{
struct aml_chunk* node = aml_create_node(parent);
if (node)
{
node->Type = AML_CHUNK_SCOPE;
aml_fill_name(node, name);
}
return node;
}
struct aml_chunk* aml_add_name(struct aml_chunk* parent, const char* name)
{
struct aml_chunk* node = aml_create_node(parent);
if (node)
{
node->Type = AML_CHUNK_NAME;
aml_fill_name(node, name);
}
return node;
}
struct aml_chunk* aml_add_package(struct aml_chunk* parent)
{
struct aml_chunk* node = aml_create_node(parent);
if (node)
{
node->Type = AML_CHUNK_PACKAGE;
node->Length = 1;
node->Buffer = malloc(node->Length);
}
return node;
}
struct aml_chunk* aml_add_alias(struct aml_chunk* parent, const char* name1, const char* name2)
{
struct aml_chunk* node = aml_create_node(parent);
if (node)
{
node->Type = AML_CHUNK_ALIAS;
node->Length = 8;
node->Buffer = malloc(node->Length);
aml_fill_simple_name(node->Buffer, name1);
aml_fill_simple_name(node->Buffer+4, name2);
}
return node;
}
unsigned char aml_get_size_length(unsigned int size)
{
if (size + 1 <= 0x3f)
return 1;
else if (size + 2 <= 0x3fff)
return 2;
else if (size + 3 <= 0x3fffff)
return 3;
return 4;
}
unsigned int aml_calculate_size(struct aml_chunk* node)
{
if (node)
{
node->Size = 0;
// Calculate child nodes size
struct aml_chunk* child = node->First;
unsigned char child_count = 0;
while (child)
{
child_count++;
node->Size += aml_calculate_size(child);
child = child->Next;
}
switch (node->Type)
{
case AML_CHUNK_NONE:
node->Size += node->Length;
break;
case AML_CHUNK_SCOPE:
node->Size += 1 + node->Length;
node->Size += aml_get_size_length(node->Size);
break;
case AML_CHUNK_PACKAGE:
node->Buffer[0] = child_count;
node->Size += 1 + node->Length;
node->Size += aml_get_size_length(node->Size);
break;
case AML_CHUNK_BYTE:
if (node->Buffer[0] == 0x0 || node->Buffer[0] == 0x1)
{
node->Size += node->Length;
}
else
{
node->Size += 1 + node->Length;
}
break;
case AML_CHUNK_WORD:
case AML_CHUNK_DWORD:
case AML_CHUNK_QWORD:
case AML_CHUNK_ALIAS:
case AML_CHUNK_NAME:
node->Size += 1 + node->Length;
break;
}
return node->Size;
}
return 0;
}
unsigned int aml_write_byte(unsigned char value, char* buffer, unsigned int offset)
{
buffer[offset++] = value;
return offset;
}
unsigned int aml_write_word(unsigned int value, char* buffer, unsigned int offset)
{
buffer[offset++] = value & 0xff;
buffer[offset++] = value >> 8;
return offset;
}
unsigned int aml_write_dword(unsigned long value, char* buffer, unsigned int offset)
{
buffer[offset++] = value & 0xff;
buffer[offset++] = (value >> 8) & 0xff;
buffer[offset++] = (value >> 16) & 0xff;
buffer[offset++] = (value >> 24) & 0xff;
return offset;
}
unsigned int aml_write_qword(unsigned long long value, char* buffer, unsigned int offset)
{
buffer[offset++] = value & 0xff;
buffer[offset++] = (value >> 8) & 0xff;
buffer[offset++] = (value >> 16) & 0xff;
buffer[offset++] = (value >> 24) & 0xff;
buffer[offset++] = (value >> 32) & 0xff;
buffer[offset++] = (value >> 40) & 0xff;
buffer[offset++] = (value >> 48) & 0xff;
buffer[offset++] = (value >> 56) & 0xff;
return offset;
}
unsigned int aml_write_buffer(const char* value, unsigned int size, char* buffer, unsigned int offset)
{
if (size > 0)
{
memcpy(buffer + offset, value, size);
}
return offset + size;
}
unsigned int aml_write_size(unsigned int size, char* buffer, unsigned int offset)
{
if (size <= 0x3f)
{
buffer[offset++] = size;
}
else if (size <= 0x3fff)
{
buffer[offset++] = 0x40 | (size & 0xf);
buffer[offset++] = (size >> 4) & 0xff;
}
else if (size <= 0x3fffff)
{
buffer[offset++] = 0x80 | (size & 0xf);
buffer[offset++] = (size >> 4) & 0xff;
buffer[offset++] = (size >> 12) & 0xff;
}
else
{
buffer[offset++] = 0xc0 | (size & 0xf);
buffer[offset++] = (size >> 4) & 0xff;
buffer[offset++] = (size >> 12) & 0xff;
buffer[offset++] = (size >> 20) & 0xff;
}
return offset;
}
unsigned int aml_write_node(struct aml_chunk* node, char* buffer, unsigned int offset)
{
if (node && buffer)
{
unsigned int old = offset;
switch (node->Type)
{
case AML_CHUNK_NONE:
offset = aml_write_buffer(node->Buffer, node->Length, buffer, offset);
break;
case AML_CHUNK_SCOPE:
case AML_CHUNK_PACKAGE:
offset = aml_write_byte(node->Type, buffer, offset);
offset = aml_write_size(node->Size-1, buffer, offset);
offset = aml_write_buffer(node->Buffer, node->Length, buffer, offset);
break;
case AML_CHUNK_BYTE:
if (node->Buffer[0] == 0x0 || node->Buffer[0] == 0x1)
{
offset = aml_write_buffer(node->Buffer, node->Length, buffer, offset);
}
else
{
offset = aml_write_byte(node->Type, buffer, offset);
offset = aml_write_buffer(node->Buffer, node->Length, buffer, offset);
}
break;
case AML_CHUNK_WORD:
case AML_CHUNK_DWORD:
case AML_CHUNK_QWORD:
case AML_CHUNK_ALIAS:
case AML_CHUNK_NAME:
offset = aml_write_byte(node->Type, buffer, offset);
offset = aml_write_buffer(node->Buffer, node->Length, buffer, offset);
break;
default:
break;
}
struct aml_chunk* child = node->First;
while (child)
{
offset = aml_write_node(child, buffer, offset);
child = child->Next;
}
if (offset - old != node->Size)
verbose("Node size incorrect: 0x%x\n", node->Type);
}
return offset;
}
branches/meklort/i386/libsaio/aml_generator.h
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/*
* aml_generator.h
* Chameleon
*
* Created by Mozodojo on 20/07/10.
* Copyright 2010 mozo. All rights reserved.
*
*/
#ifndef __LIBSAIO_AML_GENERATOR_H
#define __LIBSAIO_AML_GENERATOR_H
#include "libsaio.h"
#defineAML_CHUNK_NONE0xff
#defineAML_CHUNK_ZERO0x00
#defineAML_CHUNK_ONE0x01
#defineAML_CHUNK_ALIAS0x06
#defineAML_CHUNK_NAME0x08
#defineAML_CHUNK_BYTE0x0A
#defineAML_CHUNK_WORD0x0B
#defineAML_CHUNK_DWORD0x0C
#defineAML_CHUNK_STRING0x0D
#defineAML_CHUNK_QWORD0x0E
#defineAML_CHUNK_SCOPE0x10
#defineAML_CHUNK_PACKAGE0x12
struct aml_chunk
{
unsigned charType;
unsigned intLength;
char*Buffer;
unsigned intSize;
struct aml_chunk*Next;
struct aml_chunk*First;
struct aml_chunk*Last;
};
static inline bool aml_isvalidchar(char c)
{
return isupper(c) || isdigit(c) || c == '_';
};
bool aml_add_to_parent(struct aml_chunk* parent, struct aml_chunk* node);
struct aml_chunk* aml_create_node(struct aml_chunk* parent);
void aml_destroy_node(struct aml_chunk* node);
struct aml_chunk* aml_add_buffer(struct aml_chunk* parent, const char* buffer, unsigned int size);
struct aml_chunk* aml_add_byte(struct aml_chunk* parent, unsigned char value);
struct aml_chunk* aml_add_word(struct aml_chunk* parent, unsigned int value);
struct aml_chunk* aml_add_dword(struct aml_chunk* parent, unsigned long value);
struct aml_chunk* aml_add_qword(struct aml_chunk* parent, unsigned long long value);
struct aml_chunk* aml_add_scope(struct aml_chunk* parent, const char* name);
struct aml_chunk* aml_add_name(struct aml_chunk* parent, const char* name);
struct aml_chunk* aml_add_package(struct aml_chunk* parent);
struct aml_chunk* aml_add_alias(struct aml_chunk* parent, const char* name1, const char* name2);
unsigned int aml_calculate_size(struct aml_chunk* node);
unsigned int aml_write_node(struct aml_chunk* node, char* buffer, unsigned int offset);
#endif /* !__LIBSAIO_AML_GENERATOR_H */
branches/meklort/i386/libsaio/Makefile
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ufs.o ufs_byteorder.o \
vbe.o nbp.o hfs.o hfs_compare.o \
xml.o ntfs.o msdos.o md5c.o device_tree.o \
cpu.o platform.o acpi_patcher.o \
cpu.o platform.o \
smbios_patcher.o fake_efi.o ext2fs.o \
hpet.o usb.o pci_setup.o \
device_inject.o pci_root.o \
convert.o aml_generator.o
convert.o
SAIO_EXTERN_OBJS = console.o
branches/meklort/i386/libsaio/smbios_patcher.c
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#define DBG(x...)
#endif
uint64_t smbios_p;
typedef struct {
const char* key;
const char* value;
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#include "libsaio.h"
#include "SMBIOS.h"
extern uint64_t smbios_p;
/* From Foundation/Efi/Guid/Smbios/SmBios.h */
/* Modified to wrap Data4 array init with {} */
#define EFI_SMBIOS_TABLE_GUID {0xeb9d2d31, 0x2d88, 0x11d3, {0x9a, 0x16, 0x0, 0x90, 0x27, 0x3f, 0xc1, 0x4d}}
branches/meklort/i386/libsaio/pci_root.c
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return 11;
}
static unsigned int findpciroot(unsigned char * dsdt,int len)
unsigned int findpciroot(unsigned char * dsdt,int len)
{
int i;
int getPciRootUID(void)
{
void *new_dsdt;
const char *val;
int len,fsize;
const char * dsdt_filename=NULL;
int len;
extern int search_and_get_acpi_fd(const char *, const char **);
if (rootuid < 10) return rootuid;
if (getValueForKey(kPCIRootUID, &val, &len, &bootInfo->bootConfig)) {
if (isdigit(val[0])) rootuid = val[0] - '0';
goto out;
}
/* Chameleon compatibility */
else if (getValueForKey("PciRoot", &val, &len, &bootInfo->bootConfig)) {
if (isdigit(val[0])) rootuid = val[0] - '0';
goto out;
}
/* PCEFI compatibility */
else if (getValueForKey("-pci0", &val, &len, &bootInfo->bootConfig)) {
rootuid = 0;
goto out;
}
else if (getValueForKey("-pci1", &val, &len, &bootInfo->bootConfig)) {
rootuid = 1;
goto out;
}
int fd = search_and_get_acpi_fd("DSDT.aml", &dsdt_filename);
// Check booting partition
if (fd<0)
{
verbose("No DSDT found, using 0 as uid value.\n");
rootuid = 0;
goto out;
}
fsize = file_size(fd);
if ((new_dsdt = malloc(fsize)) == NULL) {
verbose("[ERROR] alloc DSDT memory failed\n");
close (fd);
goto out;
}
if (read (fd, new_dsdt, fsize) != fsize) {
verbose("[ERROR] read %s failed\n", dsdt_filename);
close (fd);
goto out;
}
close (fd);
rootuid = findpciroot(new_dsdt, fsize);
free(new_dsdt);
// make sure it really works:
if (rootuid == 11) rootuid=0; //usually when _UID isnt present, it means uid is zero
else if (rootuid < 0 || rootuid > 9)
{
printf("PciRoot uid value wasnt found, using 0, if you want it to be 1, use -PciRootUID flag");
rootuid = 0;
}
out:
verbose("Using PCI-Root-UID value: %d\n", rootuid);
return rootuid;
}
branches/meklort/i386/libsaio/pci_root.h
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extern int getPciRootUID(void);
unsigned int findpciroot(unsigned char * dsdt,int len);
#endif /* !__LIBSAIO_DSDT_PATCHER_H */
branches/meklort/i386/libsaio/fake_efi.c
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#include "fake_efi.h"
#include "efi_tables.h"
#include "platform.h"
#include "acpi_patcher.h"
#include "smbios_patcher.h"
#include "device_inject.h"
#include "convert.h"
#include "pci.h"
#include "sl.h"
#include "modules.h"
extern struct SMBEntryPoint * getSmbios(int which); // now cached
extern void setup_pci_devs(pci_dt_t *pci_dt);
smbios_p = (EFI_PTR32)getSmbios(SMBIOS_PATCHED);
addConfigurationTable(&gEfiSmbiosTableGuid, &smbios_p, NULL);
// Setup ACPI with DSDT overrides (mackerintel's patch)
setupAcpi();
// We've obviously changed the count.. so fix up the CRC32
if (archCpuType == CPU_TYPE_I386)
// Initialize the device tree
setupEfiDeviceTree();
execute_hook("setupEfiConfigurationTable", NULL, NULL, NULL, NULL);
// Add configuration table entries to both the services table and the device tree
setupEfiConfigurationTable();
}
branches/meklort/i386/modules/ACPIPatcher/aml_generator.c
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/*
* aml_generator.c
* Chameleon
*
* Created by Mozodojo on 20/07/10.
* Copyright 2010 mozo. All rights reserved.
*
*/
#include "aml_generator.h"
bool aml_add_to_parent(struct aml_chunk* parent, struct aml_chunk* node)
{
if (parent && node)
{
switch (parent->Type)
{
case AML_CHUNK_NONE:
case AML_CHUNK_BYTE:
case AML_CHUNK_WORD:
case AML_CHUNK_DWORD:
case AML_CHUNK_QWORD:
case AML_CHUNK_ALIAS:
verbose("aml_add_to_parent: Node isn't supports child nodes!");
return FALSE;
case AML_CHUNK_NAME:
if (parent->First)
{
verbose("aml_add_to_parent: Name node could have only one child node!");
return FALSE;
}
break;
default:
break;
}
if (!parent->First)
parent->First = node;
if (parent->Last)
parent->Last->Next = node;
parent->Last = node;
return TRUE;
}
return FALSE;
}
struct aml_chunk* aml_create_node(struct aml_chunk* parent)
{
struct aml_chunk* node = (struct aml_chunk*)malloc(sizeof(struct aml_chunk));
aml_add_to_parent(parent, node);
return node;
}
void aml_destroy_node(struct aml_chunk* node)
{
// Delete child nodes
struct aml_chunk* child = node->First;
while (child)
{
struct aml_chunk* next = child->Next;
if (child->Buffer)
free(child->Buffer);
free(child);
child = next;
}
// Free node
if (node->Buffer)
free(node->Buffer);
free(node);
}
struct aml_chunk* aml_add_buffer(struct aml_chunk* parent, const char* buffer, unsigned int size)
{
struct aml_chunk* node = aml_create_node(parent);
if (node)
{
node->Type = AML_CHUNK_NONE;
node->Length = size;
node->Buffer = malloc(node->Length);
memcpy(node->Buffer, buffer, node->Length);
}
return node;
}
struct aml_chunk* aml_add_byte(struct aml_chunk* parent, unsigned char value)
{
struct aml_chunk* node = aml_create_node(parent);
if (node)
{
node->Type = AML_CHUNK_BYTE;
node->Length = 1;
node->Buffer = malloc(node->Length);
node->Buffer[0] = value;
}
return node;
}
struct aml_chunk* aml_add_word(struct aml_chunk* parent, unsigned int value)
{
struct aml_chunk* node = aml_create_node(parent);
if (node)
{
node->Type = AML_CHUNK_WORD;
node->Length = 2;
node->Buffer = malloc(node->Length);
node->Buffer[0] = value & 0xff;
node->Buffer[1] = value >> 8;
}
return node;
}
struct aml_chunk* aml_add_dword(struct aml_chunk* parent, unsigned long value)
{
struct aml_chunk* node = aml_create_node(parent);
if (node)
{
node->Type = AML_CHUNK_DWORD;
node->Length = 4;
node->Buffer = malloc(node->Length);
node->Buffer[0] = value & 0xff;
node->Buffer[1] = (value >> 8) & 0xff;
node->Buffer[2] = (value >> 16) & 0xff;
node->Buffer[3] = (value >> 24) & 0xff;
}
return node;
}
struct aml_chunk* aml_add_qword(struct aml_chunk* parent, unsigned long long value)
{
struct aml_chunk* node = aml_create_node(parent);
if (node)
{
node->Type = AML_CHUNK_QWORD;
node->Length = 8;
node->Buffer = malloc(node->Length);
node->Buffer[0] = value & 0xff;
node->Buffer[1] = (value >> 8) & 0xff;
node->Buffer[2] = (value >> 16) & 0xff;
node->Buffer[3] = (value >> 24) & 0xff;
node->Buffer[4] = (value >> 32) & 0xff;
node->Buffer[5] = (value >> 40) & 0xff;
node->Buffer[6] = (value >> 48) & 0xff;
node->Buffer[7] = (value >> 56) & 0xff;
}
return node;
}
unsigned int aml_fill_simple_name(char* buffer, const char* name)
{
if (strlen(name) < 4)
{
verbose("aml_fill_simple_name: simple name %s has incorrect lengh! Must be 4", name);
return 0;
}
memcpy(buffer, name, 4);
return 4;
}
unsigned int aml_fill_name(struct aml_chunk* node, const char* name)
{
if (!node)
return 0;
int len = strlen(name), offset = 0, count = len / 4;
if ((len % 4) > 1 || count == 0)
{
verbose("aml_fill_name: pathname %s has incorrect length! Must be 4, 8, 12, 16 etc.", name);
return 0;
}
unsigned int root = 0;
if ((len % 4) == 1 && name[0] == '\\')
root++;
if (count == 1)
{
node->Length = 4 + root;
node->Buffer = malloc(node->Length);
memcpy(node->Buffer, name, 4 + root);
return node->Length;
}
if (count == 2)
{
node->Length = 2 + 8;
node->Buffer = malloc(node->Length);
node->Buffer[offset++] = 0x5c; // Root Char
node->Buffer[offset++] = 0x2e; // Double name
memcpy(node->Buffer+offset, name + root, 8);
return node->Length;
}
node->Length = 3 + count*4;
node->Buffer = malloc(node->Length);
node->Buffer[offset++] = 0x5c; // Root Char
node->Buffer[offset++] = 0x2f; // Multi name
node->Buffer[offset++] = count; // Names count
memcpy(node->Buffer+offset, name + root, count*4);
return node->Length;
}
struct aml_chunk* aml_add_scope(struct aml_chunk* parent, const char* name)
{
struct aml_chunk* node = aml_create_node(parent);
if (node)
{
node->Type = AML_CHUNK_SCOPE;
aml_fill_name(node, name);
}
return node;
}
struct aml_chunk* aml_add_name(struct aml_chunk* parent, const char* name)
{
struct aml_chunk* node = aml_create_node(parent);
if (node)
{
node->Type = AML_CHUNK_NAME;
aml_fill_name(node, name);
}
return node;
}
struct aml_chunk* aml_add_package(struct aml_chunk* parent)
{
struct aml_chunk* node = aml_create_node(parent);
if (node)
{
node->Type = AML_CHUNK_PACKAGE;
node->Length = 1;
node->Buffer = malloc(node->Length);
}
return node;
}
struct aml_chunk* aml_add_alias(struct aml_chunk* parent, const char* name1, const char* name2)
{
struct aml_chunk* node = aml_create_node(parent);
if (node)
{
node->Type = AML_CHUNK_ALIAS;
node->Length = 8;
node->Buffer = malloc(node->Length);
aml_fill_simple_name(node->Buffer, name1);
aml_fill_simple_name(node->Buffer+4, name2);
}
return node;
}
unsigned char aml_get_size_length(unsigned int size)
{
if (size + 1 <= 0x3f)
return 1;
else if (size + 2 <= 0x3fff)
return 2;
else if (size + 3 <= 0x3fffff)
return 3;
return 4;
}
unsigned int aml_calculate_size(struct aml_chunk* node)
{
if (node)
{
node->Size = 0;
// Calculate child nodes size
struct aml_chunk* child = node->First;
unsigned char child_count = 0;
while (child)
{
child_count++;
node->Size += aml_calculate_size(child);
child = child->Next;
}
switch (node->Type)
{
case AML_CHUNK_NONE:
node->Size += node->Length;
break;
case AML_CHUNK_SCOPE:
node->Size += 1 + node->Length;
node->Size += aml_get_size_length(node->Size);
break;
case AML_CHUNK_PACKAGE:
node->Buffer[0] = child_count;
node->Size += 1 + node->Length;
node->Size += aml_get_size_length(node->Size);
break;
case AML_CHUNK_BYTE:
if (node->Buffer[0] == 0x0 || node->Buffer[0] == 0x1)
{
node->Size += node->Length;
}
else
{
node->Size += 1 + node->Length;
}
break;
case AML_CHUNK_WORD:
case AML_CHUNK_DWORD:
case AML_CHUNK_QWORD:
case AML_CHUNK_ALIAS:
case AML_CHUNK_NAME:
node->Size += 1 + node->Length;
break;
}
return node->Size;
}
return 0;
}
unsigned int aml_write_byte(unsigned char value, char* buffer, unsigned int offset)
{
buffer[offset++] = value;
return offset;
}
unsigned int aml_write_word(unsigned int value, char* buffer, unsigned int offset)
{
buffer[offset++] = value & 0xff;
buffer[offset++] = value >> 8;
return offset;
}
unsigned int aml_write_dword(unsigned long value, char* buffer, unsigned int offset)
{
buffer[offset++] = value & 0xff;
buffer[offset++] = (value >> 8) & 0xff;
buffer[offset++] = (value >> 16) & 0xff;
buffer[offset++] = (value >> 24) & 0xff;
return offset;
}
unsigned int aml_write_qword(unsigned long long value, char* buffer, unsigned int offset)
{
buffer[offset++] = value & 0xff;
buffer[offset++] = (value >> 8) & 0xff;
buffer[offset++] = (value >> 16) & 0xff;
buffer[offset++] = (value >> 24) & 0xff;
buffer[offset++] = (value >> 32) & 0xff;
buffer[offset++] = (value >> 40) & 0xff;
buffer[offset++] = (value >> 48) & 0xff;
buffer[offset++] = (value >> 56) & 0xff;
return offset;
}
unsigned int aml_write_buffer(const char* value, unsigned int size, char* buffer, unsigned int offset)
{
if (size > 0)
{
memcpy(buffer + offset, value, size);
}
return offset + size;
}
unsigned int aml_write_size(unsigned int size, char* buffer, unsigned int offset)
{
if (size <= 0x3f)
{
buffer[offset++] = size;
}
else if (size <= 0x3fff)
{
buffer[offset++] = 0x40 | (size & 0xf);
buffer[offset++] = (size >> 4) & 0xff;
}
else if (size <= 0x3fffff)
{
buffer[offset++] = 0x80 | (size & 0xf);
buffer[offset++] = (size >> 4) & 0xff;
buffer[offset++] = (size >> 12) & 0xff;
}
else
{
buffer[offset++] = 0xc0 | (size & 0xf);
buffer[offset++] = (size >> 4) & 0xff;
buffer[offset++] = (size >> 12) & 0xff;
buffer[offset++] = (size >> 20) & 0xff;
}
return offset;
}
unsigned int aml_write_node(struct aml_chunk* node, char* buffer, unsigned int offset)
{
if (node && buffer)
{
unsigned int old = offset;
switch (node->Type)
{
case AML_CHUNK_NONE:
offset = aml_write_buffer(node->Buffer, node->Length, buffer, offset);
break;
case AML_CHUNK_SCOPE:
case AML_CHUNK_PACKAGE:
offset = aml_write_byte(node->Type, buffer, offset);
offset = aml_write_size(node->Size-1, buffer, offset);
offset = aml_write_buffer(node->Buffer, node->Length, buffer, offset);
break;
case AML_CHUNK_BYTE:
if (node->Buffer[0] == 0x0 || node->Buffer[0] == 0x1)
{
offset = aml_write_buffer(node->Buffer, node->Length, buffer, offset);
}
else
{
offset = aml_write_byte(node->Type, buffer, offset);
offset = aml_write_buffer(node->Buffer, node->Length, buffer, offset);
}
break;
case AML_CHUNK_WORD:
case AML_CHUNK_DWORD:
case AML_CHUNK_QWORD:
case AML_CHUNK_ALIAS:
case AML_CHUNK_NAME:
offset = aml_write_byte(node->Type, buffer, offset);
offset = aml_write_buffer(node->Buffer, node->Length, buffer, offset);
break;
default:
break;
}
struct aml_chunk* child = node->First;
while (child)
{
offset = aml_write_node(child, buffer, offset);
child = child->Next;
}
if (offset - old != node->Size)
verbose("Node size incorrect: 0x%x\n", node->Type);
}
return offset;
}
branches/meklort/i386/modules/ACPIPatcher/acpi_patcher.c
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/*
* Copyright 2008 mackerintel
*/
#include "libsaio.h"
#include "boot.h"
#include "bootstruct.h"
#include "acpi.h"
#include "efi_tables.h"
#include "fake_efi.h"
#include "acpi_patcher.h"
#include "platform.h"
#include "cpu.h"
#include "aml_generator.h"
#ifndef DEBUG_ACPI
#define DEBUG_ACPI 0
#endif
#if DEBUG_ACPI==2
#define DBG(x...) {printf(x); sleep(1);}
#elif DEBUG_ACPI==1
#define DBG(x...) printf(x)
#else
#define DBG(x...)
#endif
uint64_t acpi10_p;
uint64_t acpi20_p;
// Slice: New signature compare function
boolean_t tableSign(char *table, const char *sgn)
{
int i;
for (i=0; i<4; i++) {
if ((table[i] &~0x20) != (sgn[i] &~0x20)) {
return false;
}
}
return true;
}
/* Gets the ACPI 1.0 RSDP address */
static struct acpi_2_rsdp* getAddressOfAcpiTable()
{
/* TODO: Before searching the BIOS space we are supposed to search the first 1K of the EBDA */
void *acpi_addr = (void*)ACPI_RANGE_START;
for(; acpi_addr <= (void*)ACPI_RANGE_END; acpi_addr += 16)
{
if(*(uint64_t *)acpi_addr == ACPI_SIGNATURE_UINT64_LE)
{
uint8_t csum = checksum8(acpi_addr, 20);
if(csum == 0)
{
// Only return the table if it is a true version 1.0 table (Revision 0)
if(((struct acpi_2_rsdp*)acpi_addr)->Revision == 0)
return acpi_addr;
}
}
}
return NULL;
}
/* Gets the ACPI 2.0 RSDP address */
static struct acpi_2_rsdp* getAddressOfAcpi20Table()
{
/* TODO: Before searching the BIOS space we are supposed to search the first 1K of the EBDA */
void *acpi_addr = (void*)ACPI_RANGE_START;
for(; acpi_addr <= (void*)ACPI_RANGE_END; acpi_addr += 16)
{
if(*(uint64_t *)acpi_addr == ACPI_SIGNATURE_UINT64_LE)
{
uint8_t csum = checksum8(acpi_addr, 20);
/* Only assume this is a 2.0 or better table if the revision is greater than 0
* NOTE: ACPI 3.0 spec only seems to say that 1.0 tables have revision 1
* and that the current revision is 2.. I am going to assume that rev > 0 is 2.0.
*/
if(csum == 0 && (((struct acpi_2_rsdp*)acpi_addr)->Revision > 0))
{
uint8_t csum2 = checksum8(acpi_addr, sizeof(struct acpi_2_rsdp));
if(csum2 == 0)
return acpi_addr;
}
}
}
return NULL;
}
/** The folowing ACPI Table search algo. should be reused anywhere needed:*/
int search_and_get_acpi_fd(const char * filename, const char ** outDirspec)
{
int fd = 0;
char dirSpec[512] = "";
// Try finding 'filename' in the usual places
// Start searching any potential location for ACPI Table
sprintf(dirSpec, "%s", filename);
fd = open(dirSpec, 0);
if (fd < 0)
{
sprintf(dirSpec, "/Extra/%s", filename);
fd = open(dirSpec, 0);
if (fd < 0)
{
sprintf(dirSpec, "bt(0,0)/Extra/%s", filename);
fd = open(dirSpec, 0);
}
}
if (fd < 0)
{
// NOT FOUND:
verbose("ACPI table not found: %s\n", filename);
*dirSpec = '\0';
}
if (outDirspec) *outDirspec = dirSpec;
return fd;
}
void *loadACPITable (const char * filename)
{
void *tableAddr;
const char * dirspec=NULL;
int fd = search_and_get_acpi_fd(filename, &dirspec);
if (fd>=0)
{
tableAddr=(void*)AllocateKernelMemory(file_size (fd));
if (tableAddr)
{
if (read (fd, tableAddr, file_size (fd))!=file_size (fd))
{
printf("Couldn't read table %s\n",dirspec);
free (tableAddr);
close (fd);
return NULL;
}
DBG("Table %s read and stored at: %x\n", dirspec, tableAddr);
close (fd);
return tableAddr;
}
close (fd);
printf("Couldn't allocate memory for table \n", dirspec);
}
//printf("Couldn't find table %s\n", filename);
return NULL;
}
uint8_tacpi_cpu_count = 0;
char* acpi_cpu_name[32];
void get_acpi_cpu_names(unsigned char* dsdt, uint32_t length)
{
uint32_t i;
for (i=0; i<length-7; i++)
{
if (dsdt[i] == 0x5B && dsdt[i+1] == 0x83) // ProcessorOP
{
uint32_t offset = i + 3 + (dsdt[i+2] >> 6);
bool add_name = true;
uint8_t j;
for (j=0; j<4; j++)
{
char c = dsdt[offset+j];
if (!aml_isvalidchar(c))
{
add_name = false;
verbose("Invalid character found in ProcessorOP 0x%x!\n", c);
break;
}
}
if (add_name)
{
acpi_cpu_name[acpi_cpu_count] = malloc(4);
memcpy(acpi_cpu_name[acpi_cpu_count], dsdt+offset, 4);
i = offset + 5;
verbose("Found ACPI CPU: %c%c%c%c\n", acpi_cpu_name[acpi_cpu_count][0], acpi_cpu_name[acpi_cpu_count][1], acpi_cpu_name[acpi_cpu_count][2], acpi_cpu_name[acpi_cpu_count][3]);
if (++acpi_cpu_count == 32) return;
}
}
}
}
struct acpi_2_ssdt *generate_cst_ssdt(struct acpi_2_fadt* fadt)
{
char ssdt_header[] =
{
0x53, 0x53, 0x44, 0x54, 0xE7, 0x00, 0x00, 0x00, /* SSDT.... */
0x01, 0x17, 0x50, 0x6D, 0x52, 0x65, 0x66, 0x41, /* ..PmRefA */
0x43, 0x70, 0x75, 0x43, 0x73, 0x74, 0x00, 0x00, /* CpuCst.. */
0x00, 0x10, 0x00, 0x00, 0x49, 0x4E, 0x54, 0x4C, /* ....INTL */
0x31, 0x03, 0x10, 0x20 /* 1.._*/
};
char cstate_resource_template[] =
{
0x11, 0x14, 0x0A, 0x11, 0x82, 0x0C, 0x00, 0x7F,
0x01, 0x02, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x79, 0x00
};
if (Platform.CPU.Vendor != 0x756E6547) {
verbose ("Not an Intel platform: C-States will not be generated !!!\n");
return NULL;
}
if (fadt == NULL) {
verbose ("FACP not exists: C-States will not be generated !!!\n");
return NULL;
}
struct acpi_2_dsdt* dsdt = (void*)fadt->DSDT;
if (dsdt == NULL) {
verbose ("DSDT not found: C-States will not be generated !!!\n");
return NULL;
}
if (acpi_cpu_count == 0)
get_acpi_cpu_names((void*)dsdt, dsdt->Length);
if (acpi_cpu_count > 0)
{
bool c2_enabled = fadt->C2_Latency < 100;
bool c3_enabled = fadt->C3_Latency < 1000;
bool c4_enabled = false;
getBoolForKey(kEnableC4States, &c4_enabled, &bootInfo->bootConfig);
unsigned char cstates_count = 1 + (c2_enabled ? 1 : 0) + (c3_enabled ? 1 : 0);
struct aml_chunk* root = aml_create_node(NULL);
aml_add_buffer(root, ssdt_header, sizeof(ssdt_header)); // SSDT header
struct aml_chunk* scop = aml_add_scope(root, "\\_PR_");
struct aml_chunk* name = aml_add_name(scop, "CST_");
struct aml_chunk* pack = aml_add_package(name);
aml_add_byte(pack, cstates_count);
struct aml_chunk* tmpl = aml_add_package(pack);
cstate_resource_template[11] = 0x00; // C1
aml_add_buffer(tmpl, cstate_resource_template, sizeof(cstate_resource_template));
aml_add_byte(tmpl, 0x01); // C1
aml_add_byte(tmpl, 0x01); // Latency
aml_add_word(tmpl, 0x03e8); // Power
// C2
if (c2_enabled)
{
tmpl = aml_add_package(pack);
cstate_resource_template[11] = 0x10; // C2
aml_add_buffer(tmpl, cstate_resource_template, sizeof(cstate_resource_template));
aml_add_byte(tmpl, 0x02); // C2
aml_add_byte(tmpl, fadt->C2_Latency);
aml_add_word(tmpl, 0x01f4); // Power
}
// C4
if (c4_enabled)
{
tmpl = aml_add_package(pack);
cstate_resource_template[11] = 0x30; // C4
aml_add_buffer(tmpl, cstate_resource_template, sizeof(cstate_resource_template));
aml_add_byte(tmpl, 0x04); // C4
aml_add_word(tmpl, fadt->C3_Latency / 2); // TODO: right latency for C4
aml_add_byte(tmpl, 0xfa); // Power
}
else
// C3
if (c3_enabled)
{
tmpl = aml_add_package(pack);
cstate_resource_template[11] = 0x20; // C3
aml_add_buffer(tmpl, cstate_resource_template, sizeof(cstate_resource_template));
aml_add_byte(tmpl, 0x03); // C3
aml_add_word(tmpl, fadt->C3_Latency);
aml_add_word(tmpl, 0x015e); // Power
}
// Aliaces
int i;
for (i = 0; i < acpi_cpu_count; i++)
{
char name[9];
sprintf(name, "_PR_%c%c%c%c", acpi_cpu_name[i][0], acpi_cpu_name[i][1], acpi_cpu_name[i][2], acpi_cpu_name[i][3]);
scop = aml_add_scope(root, name);
aml_add_alias(scop, "CST_", "_CST");
}
aml_calculate_size(root);
struct acpi_2_ssdt *ssdt = (struct acpi_2_ssdt *)AllocateKernelMemory(root->Size);
aml_write_node(root, (void*)ssdt, 0);
ssdt->Length = root->Size;
ssdt->Checksum = 0;
ssdt->Checksum = 256 - checksum8(ssdt, ssdt->Length);
aml_destroy_node(root);
//dumpPhysAddr("C-States SSDT content: ", ssdt, ssdt->Length);
verbose ("SSDT with CPU C-States generated successfully\n");
return ssdt;
}
else
{
verbose ("ACPI CPUs not found: C-States not generated !!!\n");
}
return NULL;
}
struct acpi_2_ssdt *generate_pss_ssdt(struct acpi_2_dsdt* dsdt)
{
char ssdt_header[] =
{
0x53, 0x53, 0x44, 0x54, 0x7E, 0x00, 0x00, 0x00, /* SSDT.... */
0x01, 0x6A, 0x50, 0x6D, 0x52, 0x65, 0x66, 0x00, /* ..PmRef. */
0x43, 0x70, 0x75, 0x50, 0x6D, 0x00, 0x00, 0x00, /* CpuPm... */
0x00, 0x30, 0x00, 0x00, 0x49, 0x4E, 0x54, 0x4C, /* .0..INTL */
0x31, 0x03, 0x10, 0x20,/* 1.._*/
};
if (Platform.CPU.Vendor != 0x756E6547) {
verbose ("Not an Intel platform: P-States will not be generated !!!\n");
return NULL;
}
if (!(Platform.CPU.Features & CPU_FEATURE_MSR)) {
verbose ("Unsupported CPU: P-States will not be generated !!!\n");
return NULL;
}
if (acpi_cpu_count == 0)
get_acpi_cpu_names((void*)dsdt, dsdt->Length);
if (acpi_cpu_count > 0)
{
struct p_state initial, maximum, minimum, p_states[32];
uint8_t p_states_count = 0;
// Retrieving P-States, ported from code by superhai (c)
switch (Platform.CPU.Family) {
case 0x06:
{
switch (Platform.CPU.Model)
{
case 0x0D: // ?
case CPU_MODEL_YONAH: // Yonah
case CPU_MODEL_MEROM: // Merom
case CPU_MODEL_PENRYN: // Penryn
case CPU_MODEL_ATOM: // Intel Atom (45nm)
{
bool cpu_dynamic_fsb = false;
if (rdmsr64(MSR_IA32_EXT_CONFIG) & (1 << 27))
{
wrmsr64(MSR_IA32_EXT_CONFIG, (rdmsr64(MSR_IA32_EXT_CONFIG) | (1 << 28)));
delay(1);
cpu_dynamic_fsb = rdmsr64(MSR_IA32_EXT_CONFIG) & (1 << 28);
}
bool cpu_noninteger_bus_ratio = (rdmsr64(MSR_IA32_PERF_STATUS) & (1ULL << 46));
initial.Control = rdmsr64(MSR_IA32_PERF_STATUS);
maximum.Control = ((rdmsr64(MSR_IA32_PERF_STATUS) >> 32) & 0x1F3F) | (0x4000 * cpu_noninteger_bus_ratio);
maximum.CID = ((maximum.FID & 0x1F) << 1) | cpu_noninteger_bus_ratio;
minimum.FID = ((rdmsr64(MSR_IA32_PERF_STATUS) >> 24) & 0x1F) | (0x80 * cpu_dynamic_fsb);
minimum.VID = ((rdmsr64(MSR_IA32_PERF_STATUS) >> 48) & 0x3F);
if (minimum.FID == 0)
{
uint64_t msr;
uint8_t i;
// Probe for lowest fid
for (i = maximum.FID; i >= 0x6; i--)
{
msr = rdmsr64(MSR_IA32_PERF_CONTROL);
wrmsr64(MSR_IA32_PERF_CONTROL, (msr & 0xFFFFFFFFFFFF0000ULL) | (i << 8) | minimum.VID);
intel_waitforsts();
minimum.FID = (rdmsr64(MSR_IA32_PERF_STATUS) >> 8) & 0x1F;
delay(1);
}
msr = rdmsr64(MSR_IA32_PERF_CONTROL);
wrmsr64(MSR_IA32_PERF_CONTROL, (msr & 0xFFFFFFFFFFFF0000ULL) | (maximum.FID << 8) | maximum.VID);
intel_waitforsts();
}
if (minimum.VID == maximum.VID)
{
uint64_t msr;
uint8_t i;
// Probe for lowest vid
for (i = maximum.VID; i > 0xA; i--)
{
msr = rdmsr64(MSR_IA32_PERF_CONTROL);
wrmsr64(MSR_IA32_PERF_CONTROL, (msr & 0xFFFFFFFFFFFF0000ULL) | (minimum.FID << 8) | i);
intel_waitforsts();
minimum.VID = rdmsr64(MSR_IA32_PERF_STATUS) & 0x3F;
delay(1);
}
msr = rdmsr64(MSR_IA32_PERF_CONTROL);
wrmsr64(MSR_IA32_PERF_CONTROL, (msr & 0xFFFFFFFFFFFF0000ULL) | (maximum.FID << 8) | maximum.VID);
intel_waitforsts();
}
minimum.CID = ((minimum.FID & 0x1F) << 1) >> cpu_dynamic_fsb;
// Sanity check
if (maximum.CID < minimum.CID)
{
DBG("Insane FID values!");
p_states_count = 1;
}
else
{
// Finalize P-States
// Find how many P-States machine supports
p_states_count = maximum.CID - minimum.CID + 1;
if (p_states_count > 32)
p_states_count = 32;
uint8_t vidstep;
uint8_t i = 0, u, invalid = 0;
vidstep = ((maximum.VID << 2) - (minimum.VID << 2)) / (p_states_count - 1);
for (u = 0; u < p_states_count; u++)
{
i = u - invalid;
p_states[i].CID = maximum.CID - u;
p_states[i].FID = (p_states[i].CID >> 1);
if (p_states[i].FID < 0x6)
{
if (cpu_dynamic_fsb)
p_states[i].FID = (p_states[i].FID << 1) | 0x80;
}
else if (cpu_noninteger_bus_ratio)
{
p_states[i].FID = p_states[i].FID | (0x40 * (p_states[i].CID & 0x1));
}
if (i && p_states[i].FID == p_states[i-1].FID)
invalid++;
p_states[i].VID = ((maximum.VID << 2) - (vidstep * u)) >> 2;
uint32_t multiplier = p_states[i].FID & 0x1f;// = 0x08
bool half = p_states[i].FID & 0x40;// = 0x01
bool dfsb = p_states[i].FID & 0x80;// = 0x00
uint32_t fsb = Platform.CPU.FSBFrequency / 1000000; // = 400
uint32_t halffsb = (fsb + 1) >> 1;// = 200
uint32_t frequency = (multiplier * fsb);// = 3200
p_states[i].Frequency = (frequency + (half * halffsb)) >> dfsb;// = 3200 + 200 = 3400
}
p_states_count -= invalid;
}
} break;
case CPU_MODEL_FIELDS:
case CPU_MODEL_DALES:
case CPU_MODEL_DALES_32NM:
case CPU_MODEL_NEHALEM:
case CPU_MODEL_NEHALEM_EX:
case CPU_MODEL_WESTMERE:
case CPU_MODEL_WESTMERE_EX:
default:
verbose ("Unsupported CPU: P-States not generated !!!\n");
break;
}
}
}
// Generating SSDT
if (p_states_count > 0)
{
int i;
struct aml_chunk* root = aml_create_node(NULL);
aml_add_buffer(root, ssdt_header, sizeof(ssdt_header)); // SSDT header
struct aml_chunk* scop = aml_add_scope(root, "\\_PR_");
struct aml_chunk* name = aml_add_name(scop, "PSS_");
struct aml_chunk* pack = aml_add_package(name);
for (i = 0; i < p_states_count; i++)
{
struct aml_chunk* pstt = aml_add_package(pack);
aml_add_dword(pstt, p_states[i].Frequency);
aml_add_dword(pstt, 0x00000000); // Power
aml_add_dword(pstt, 0x0000000A); // Latency
aml_add_dword(pstt, 0x0000000A); // Latency
aml_add_dword(pstt, p_states[i].Control);
aml_add_dword(pstt, i+1); // Status
}
// Add aliaces
for (i = 0; i < acpi_cpu_count; i++)
{
char name[9];
sprintf(name, "_PR_%c%c%c%c", acpi_cpu_name[i][0], acpi_cpu_name[i][1], acpi_cpu_name[i][2], acpi_cpu_name[i][3]);
scop = aml_add_scope(root, name);
aml_add_alias(scop, "PSS_", "_PSS");
}
aml_calculate_size(root);
struct acpi_2_ssdt *ssdt = (struct acpi_2_ssdt *)AllocateKernelMemory(root->Size);
aml_write_node(root, (void*)ssdt, 0);
ssdt->Length = root->Size;
ssdt->Checksum = 0;
ssdt->Checksum = 256 - checksum8(ssdt, ssdt->Length);
aml_destroy_node(root);
//dumpPhysAddr("P-States SSDT content: ", ssdt, ssdt->Length);
verbose ("SSDT with CPU P-States generated successfully\n");
return ssdt;
}
}
else
{
verbose ("ACPI CPUs not found: P-States not generated !!!\n");
}
return NULL;
}
struct acpi_2_fadt *patch_fadt(struct acpi_2_fadt *fadt, struct acpi_2_dsdt *new_dsdt)
{
extern void setupSystemType();
struct acpi_2_fadt *fadt_mod;
bool fadt_rev2_needed = false;
bool fix_restart;
const char * value;
// Restart Fix
if (Platform.CPU.Vendor == 0x756E6547) {/* Intel */
fix_restart = true;
getBoolForKey(kRestartFix, &fix_restart, &bootInfo->bootConfig);
} else {
verbose ("Not an Intel platform: Restart Fix not applied !!!\n");
fix_restart = false;
}
if (fix_restart) fadt_rev2_needed = true;
// Allocate new fadt table
if (fadt->Length < 0x84 && fadt_rev2_needed)
{
fadt_mod=(struct acpi_2_fadt *)AllocateKernelMemory(0x84);
memcpy(fadt_mod, fadt, fadt->Length);
fadt_mod->Length = 0x84;
fadt_mod->Revision = 0x02; // FADT rev 2 (ACPI 1.0B MS extensions)
}
else
{
fadt_mod=(struct acpi_2_fadt *)AllocateKernelMemory(fadt->Length);
memcpy(fadt_mod, fadt, fadt->Length);
}
// Determine system type / PM_Model
if ( (value=getStringForKey(kSystemType, &bootInfo->bootConfig))!=NULL)
{
if (Platform.Type > 6)
{
if(fadt_mod->PM_Profile<=6)
Platform.Type = fadt_mod->PM_Profile; // get the fadt if correct
else
Platform.Type = 1;/* Set a fixed value (Desktop) */
verbose("Error: system-type must be 0..6. Defaulting to %d !\n", Platform.Type);
}
else
Platform.Type = (unsigned char) strtoul(value, NULL, 10);
}
// Set PM_Profile from System-type if only user wanted this value to be forced
if (fadt_mod->PM_Profile != Platform.Type)
{
if (value)
{ // user has overriden the SystemType so take care of it in FACP
verbose("FADT: changing PM_Profile from 0x%02x to 0x%02x\n", fadt_mod->PM_Profile, Platform.Type);
fadt_mod->PM_Profile = Platform.Type;
}
else
{ // PM_Profile has a different value and no override has been set, so reflect the user value to ioregs
Platform.Type = fadt_mod->PM_Profile <= 6 ? fadt_mod->PM_Profile : 1;
}
}
// We now have to write the systemm-type in ioregs: we cannot do it before in setupDeviceTree()
// because we need to take care of facp original content, if it is correct.
setupSystemType();
// Patch FADT to fix restart
if (fix_restart)
{
fadt_mod->Flags|= 0x400;
fadt_mod->Reset_SpaceID= 0x01; // System I/O
fadt_mod->Reset_BitWidth= 0x08; // 1 byte
fadt_mod->Reset_BitOffset= 0x00; // Offset 0
fadt_mod->Reset_AccessWidth= 0x01; // Byte access
fadt_mod->Reset_Address= 0x0cf9; // Address of the register
fadt_mod->Reset_Value= 0x06; // Value to write to reset the system
verbose("FADT: Restart Fix applied!\n");
}
// Patch DSDT Address if we have loaded DSDT.aml
if(new_dsdt)
{
DBG("DSDT: Old @%x,%x, ",fadt_mod->DSDT,fadt_mod->X_DSDT);
fadt_mod->DSDT=(uint32_t)new_dsdt;
if ((uint32_t)(&(fadt_mod->X_DSDT))-(uint32_t)fadt_mod+8<=fadt_mod->Length)
fadt_mod->X_DSDT=(uint32_t)new_dsdt;
DBG("New @%x,%x\n",fadt_mod->DSDT,fadt_mod->X_DSDT);
verbose("FADT: Using custom DSDT!\n");
}
// Correct the checksum
fadt_mod->Checksum=0;
fadt_mod->Checksum=256-checksum8(fadt_mod,fadt_mod->Length);
return fadt_mod;
}
/* Setup ACPI without replacing DSDT. */
int setupAcpiNoMod()
{
//addConfigurationTable(&gEfiAcpiTableGuid, getAddressOfAcpiTable(), "ACPI");
//addConfigurationTable(&gEfiAcpi20TableGuid, getAddressOfAcpi20Table(), "ACPI_20");
/* XXX aserebln why uint32 cast if pointer is uint64 ? */
acpi10_p = (uint32_t)getAddressOfAcpiTable();
acpi20_p = (uint32_t)getAddressOfAcpi20Table();
addConfigurationTable(&gEfiAcpiTableGuid, &acpi10_p, "ACPI");
if(acpi20_p) addConfigurationTable(&gEfiAcpi20TableGuid, &acpi20_p, "ACPI_20");
return 1;
}
/* Setup ACPI. Replace DSDT if DSDT.aml is found */
int setupAcpi(void)
{
int version;
void *new_dsdt;
const char *filename;
char dirSpec[128];
int len = 0;
// Try using the file specified with the DSDT option
if (getValueForKey(kDSDT, &filename, &len, &bootInfo->bootConfig))
{
sprintf(dirSpec, filename);
}
else
{
sprintf(dirSpec, "DSDT.aml");
}
// Load replacement DSDT
new_dsdt = loadACPITable(dirSpec);
// Mozodojo: going to patch FACP and load SSDT's even if DSDT.aml is not present
/*if (!new_dsdt)
{
return setupAcpiNoMod();
}*/
// Mozodojo: Load additional SSDTs
struct acpi_2_ssdt *new_ssdt[32]; // 30 + 2 additional tables for pss & cst
int ssdt_count=0;
// SSDT Options
bool drop_ssdt=false, generate_pstates=false, generate_cstates=false;
getBoolForKey(kDropSSDT, &drop_ssdt, &bootInfo->bootConfig);
getBoolForKey(kGeneratePStates, &generate_pstates, &bootInfo->bootConfig);
getBoolForKey(kGenerateCStates, &generate_cstates, &bootInfo->bootConfig);
{
int i;
for (i=0; i<30; i++)
{
char filename[512];
sprintf(filename, i>0?"SSDT-%d.aml":"SSDT.aml", i);
if(new_ssdt[ssdt_count] = loadACPITable(filename))
{
ssdt_count++;
}
else
{
break;
}
}
}
// Do the same procedure for both versions of ACPI
for (version=0; version<2; version++) {
struct acpi_2_rsdp *rsdp, *rsdp_mod;
struct acpi_2_rsdt *rsdt, *rsdt_mod;
int rsdplength;
// Find original rsdp
rsdp=(struct acpi_2_rsdp *)(version?getAddressOfAcpi20Table():getAddressOfAcpiTable());
if (!rsdp)
{
DBG("No ACPI version %d found. Ignoring\n", version+1);
if (version)
addConfigurationTable(&gEfiAcpi20TableGuid, NULL, "ACPI_20");
else
addConfigurationTable(&gEfiAcpiTableGuid, NULL, "ACPI");
continue;
}
rsdplength=version?rsdp->Length:20;
DBG("RSDP version %d found @%x. Length=%d\n",version+1,rsdp,rsdplength);
/* FIXME: no check that memory allocation succeeded
* Copy and patch RSDP,RSDT, XSDT and FADT
* For more info see ACPI Specification pages 110 and following
*/
rsdp_mod=(struct acpi_2_rsdp *) AllocateKernelMemory(rsdplength);
memcpy(rsdp_mod, rsdp, rsdplength);
rsdt=(struct acpi_2_rsdt *)(rsdp->RsdtAddress);
DBG("RSDT @%x, Length %d\n",rsdt, rsdt->Length);
if (rsdt && (uint32_t)rsdt !=0xffffffff && rsdt->Length<0x10000)
{
uint32_t *rsdt_entries;
int rsdt_entries_num;
int dropoffset=0, i;
// mozo: using malloc cos I didn't found how to free already allocated kernel memory
rsdt_mod=(struct acpi_2_rsdt *)malloc(rsdt->Length);
memcpy (rsdt_mod, rsdt, rsdt->Length);
rsdp_mod->RsdtAddress=(uint32_t)rsdt_mod;
rsdt_entries_num=(rsdt_mod->Length-sizeof(struct acpi_2_rsdt))/4;
rsdt_entries=(uint32_t *)(rsdt_mod+1);
for (i=0;i<rsdt_entries_num;i++)
{
char *table=(char *)(rsdt_entries[i]);
if (!table)
continue;
DBG("TABLE %c%c%c%c,",table[0],table[1],table[2],table[3]);
rsdt_entries[i-dropoffset]=rsdt_entries[i];
if (drop_ssdt && tableSign(table, "SSDT"))
{
dropoffset++;
continue;
}
if (tableSign(table, "DSDT"))
{
DBG("DSDT found\n");
if(new_dsdt)
rsdt_entries[i-dropoffset]=(uint32_t)new_dsdt;
continue;
}
if (tableSign(table, "FACP"))
{
struct acpi_2_fadt *fadt, *fadt_mod;
fadt=(struct acpi_2_fadt *)rsdt_entries[i];
DBG("FADT found @%x, Length %d\n",fadt, fadt->Length);
if (!fadt || (uint32_t)fadt == 0xffffffff || fadt->Length>0x10000)
{
printf("FADT incorrect. Not modified\n");
continue;
}
fadt_mod = patch_fadt(fadt, new_dsdt);
rsdt_entries[i-dropoffset]=(uint32_t)fadt_mod;
// Generate _CST SSDT
if (generate_cstates && (new_ssdt[ssdt_count] = generate_cst_ssdt(fadt_mod)))
{
generate_cstates = false; // Generate SSDT only once!
ssdt_count++;
}
// Generating _PSS SSDT
if (generate_pstates && (new_ssdt[ssdt_count] = generate_pss_ssdt((void*)fadt_mod->DSDT)))
{
generate_pstates = false; // Generate SSDT only once!
ssdt_count++;
}
continue;
}
}
DBG("\n");
// Allocate rsdt in Kernel memory area
rsdt_mod->Length += 4*ssdt_count - 4*dropoffset;
struct acpi_2_rsdt *rsdt_copy = (struct acpi_2_rsdt *)AllocateKernelMemory(rsdt_mod->Length);
memcpy (rsdt_copy, rsdt_mod, rsdt_mod->Length);
free(rsdt_mod); rsdt_mod = rsdt_copy;
rsdp_mod->RsdtAddress=(uint32_t)rsdt_mod;
rsdt_entries_num=(rsdt_mod->Length-sizeof(struct acpi_2_rsdt))/4;
rsdt_entries=(uint32_t *)(rsdt_mod+1);
// Mozodojo: Insert additional SSDTs into RSDT
if(ssdt_count>0)
{
int j;
for (j=0; j<ssdt_count; j++)
rsdt_entries[i-dropoffset+j]=(uint32_t)new_ssdt[j];
verbose("RSDT: Added %d SSDT table(s)\n", ssdt_count);
}
// Correct the checksum of RSDT
DBG("RSDT: Original checksum %d, ", rsdt_mod->Checksum);
rsdt_mod->Checksum=0;
rsdt_mod->Checksum=256-checksum8(rsdt_mod,rsdt_mod->Length);
DBG("New checksum %d at %x\n", rsdt_mod->Checksum,rsdt_mod);
}
else
{
rsdp_mod->RsdtAddress=0;
printf("RSDT not found or RSDT incorrect\n");
}
if (version)
{
struct acpi_2_xsdt *xsdt, *xsdt_mod;
// FIXME: handle 64-bit address correctly
xsdt=(struct acpi_2_xsdt*) ((uint32_t)rsdp->XsdtAddress);
DBG("XSDT @%x;%x, Length=%d\n", (uint32_t)(rsdp->XsdtAddress>>32),(uint32_t)rsdp->XsdtAddress,
xsdt->Length);
if (xsdt && (uint64_t)rsdp->XsdtAddress<0xffffffff && xsdt->Length<0x10000)
{
uint64_t *xsdt_entries;
int xsdt_entries_num, i;
int dropoffset=0;
// mozo: using malloc cos I didn't found how to free already allocated kernel memory
xsdt_mod=(struct acpi_2_xsdt*)malloc(xsdt->Length);
memcpy(xsdt_mod, xsdt, xsdt->Length);
rsdp_mod->XsdtAddress=(uint32_t)xsdt_mod;
xsdt_entries_num=(xsdt_mod->Length-sizeof(struct acpi_2_xsdt))/8;
xsdt_entries=(uint64_t *)(xsdt_mod+1);
for (i=0;i<xsdt_entries_num;i++)
{
char *table=(char *)((uint32_t)(xsdt_entries[i]));
if (!table)
continue;
xsdt_entries[i-dropoffset]=xsdt_entries[i];
if (drop_ssdt && tableSign(table, "SSDT"))
{
dropoffset++;
continue;
}
if (tableSign(table, "DSDT"))
{
DBG("DSDT found\n");
if (new_dsdt)
xsdt_entries[i-dropoffset]=(uint32_t)new_dsdt;
DBG("TABLE %c%c%c%c@%x,",table[0],table[1],table[2],table[3],xsdt_entries[i]);
continue;
}
if (tableSign(table, "FACP"))
{
struct acpi_2_fadt *fadt, *fadt_mod;
fadt=(struct acpi_2_fadt *)(uint32_t)xsdt_entries[i];
DBG("FADT found @%x,%x, Length %d\n",(uint32_t)(xsdt_entries[i]>>32),fadt,
fadt->Length);
if (!fadt || (uint64_t)xsdt_entries[i] >= 0xffffffff || fadt->Length>0x10000)
{
verbose("FADT incorrect or after 4GB. Dropping XSDT\n");
goto drop_xsdt;
}
fadt_mod = patch_fadt(fadt, new_dsdt);
xsdt_entries[i-dropoffset]=(uint32_t)fadt_mod;
DBG("TABLE %c%c%c%c@%x,",table[0],table[1],table[2],table[3],xsdt_entries[i]);
// Generate _CST SSDT
if (generate_cstates && (new_ssdt[ssdt_count] = generate_cst_ssdt(fadt_mod)))
{
generate_cstates = false; // Generate SSDT only once!
ssdt_count++;
}
// Generating _PSS SSDT
if (generate_pstates && (new_ssdt[ssdt_count] = generate_pss_ssdt((void*)fadt_mod->DSDT)))
{
generate_pstates = false; // Generate SSDT only once!
ssdt_count++;
}
continue;
}
DBG("TABLE %c%c%c%c@%x,",table[0],table[1],table[2],table[3],xsdt_entries[i]);
}
// Allocate xsdt in Kernel memory area
xsdt_mod->Length += 8*ssdt_count - 8*dropoffset;
struct acpi_2_xsdt *xsdt_copy = (struct acpi_2_xsdt *)AllocateKernelMemory(xsdt_mod->Length);
memcpy(xsdt_copy, xsdt_mod, xsdt_mod->Length);
free(xsdt_mod); xsdt_mod = xsdt_copy;
rsdp_mod->XsdtAddress=(uint32_t)xsdt_mod;
xsdt_entries_num=(xsdt_mod->Length-sizeof(struct acpi_2_xsdt))/8;
xsdt_entries=(uint64_t *)(xsdt_mod+1);
// Mozodojo: Insert additional SSDTs into XSDT
if(ssdt_count>0)
{
int j;
for (j=0; j<ssdt_count; j++)
xsdt_entries[i-dropoffset+j]=(uint32_t)new_ssdt[j];
verbose("Added %d SSDT table(s) into XSDT\n", ssdt_count);
}
// Correct the checksum of XSDT
xsdt_mod->Checksum=0;
xsdt_mod->Checksum=256-checksum8(xsdt_mod,xsdt_mod->Length);
}
else
{
drop_xsdt:
DBG("About to drop XSDT\n");
/*FIXME: Now we just hope that if MacOS doesn't find XSDT it reverts to RSDT.
* A Better strategy would be to generate
*/
rsdp_mod->XsdtAddress=0xffffffffffffffffLL;
verbose("XSDT not found or XSDT incorrect\n");
}
}
// Correct the checksum of RSDP
DBG("RSDP: Original checksum %d, ", rsdp_mod->Checksum);
rsdp_mod->Checksum=0;
rsdp_mod->Checksum=256-checksum8(rsdp_mod,20);
DBG("New checksum %d\n", rsdp_mod->Checksum);
if (version)
{
DBG("RSDP: Original extended checksum %d", rsdp_mod->ExtendedChecksum);
rsdp_mod->ExtendedChecksum=0;
rsdp_mod->ExtendedChecksum=256-checksum8(rsdp_mod,rsdp_mod->Length);
DBG("New extended checksum %d\n", rsdp_mod->ExtendedChecksum);
}
//verbose("Patched ACPI version %d DSDT\n", version+1);
if (version)
{
/* XXX aserebln why uint32 cast if pointer is uint64 ? */
acpi20_p = (uint32_t)rsdp_mod;
addConfigurationTable(&gEfiAcpi20TableGuid, &acpi20_p, "ACPI_20");
}
else
{
/* XXX aserebln why uint32 cast if pointer is uint64 ? */
acpi10_p = (uint32_t)rsdp_mod;
addConfigurationTable(&gEfiAcpiTableGuid, &acpi10_p, "ACPI");
}
}
#if DEBUG_ACPI
printf("Press a key to continue... (DEBUG_ACPI)\n");
getc();
#endif
return 1;
}
branches/meklort/i386/modules/ACPIPatcher/ACPIPatcher.c
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/*
* Copyright (c) 2009 Evan Lojewski. All rights reserved.
*
*/
#include "libsaio.h"
#include "modules.h"
#include "boot.h"