smm_reloc.h File Reference

#include <console/console.h>
#include <types.h>
#include <cpu/x86/msr.h>
#include <cpu/x86/mtrr.h>

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Data Structures
struct	smm_relocation_params
struct	ied_header

Macros
#define	MSR_PRMRR_PHYS_BASE   0x1f4
#define	MSR_PRMRR_PHYS_MASK   0x1f5
#define	MSR_UNCORE_PRMRR_PHYS_BASE   0x2f4
#define	MSR_UNCORE_PRMRR_PHYS_MASK   0x2f5

Functions
void	northbridge_write_smram (u8 smram)
void	smm_lock (void)
void	smm_relocate (void)
void	smm_southbridge_clear_state (void)
void	smm_initialize (void)
void	smm_info (uintptr_t *perm_smbase, size_t *perm_smsize, size_t *smm_save_state_size)
void	smm_relocation_handler (int cpu, uintptr_t curr_smbase, uintptr_t staggered_smbase)
bool	cpu_has_alternative_smrr (void)
static void	write_smrr (struct smm_relocation_params *relo_params)
static void	write_prmrr (struct smm_relocation_params *relo_params)
static void	write_uncore_prmrr (struct smm_relocation_params *relo_params)

Variables
struct smm_relocation_params	smm_reloc_params
struct ied_header	__packed

Macro Definition Documentation

MSR_PRMRR_PHYS_BASE

#define MSR_PRMRR_PHYS_BASE   0x1f4

Definition at line 54 of file smm_reloc.h.

MSR_PRMRR_PHYS_MASK

#define MSR_PRMRR_PHYS_MASK   0x1f5

Definition at line 55 of file smm_reloc.h.

MSR_UNCORE_PRMRR_PHYS_BASE

#define MSR_UNCORE_PRMRR_PHYS_BASE   0x2f4

Definition at line 56 of file smm_reloc.h.

MSR_UNCORE_PRMRR_PHYS_MASK

#define MSR_UNCORE_PRMRR_PHYS_MASK   0x2f5

Definition at line 57 of file smm_reloc.h.

Function Documentation

cpu_has_alternative_smrr()

bool cpu_has_alternative_smrr

(

void

)

Definition at line 31 of file smmrelocate.c.

References c, cpuid_eax(), and get_fms().

Referenced by fill_in_relocation_params(), per_cpu_smm_trigger(), and smm_relocation_handler().

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northbridge_write_smram()

void northbridge_write_smram

(

u8

smram

)

Definition at line 27 of file memmap.c.

References PCI_DEV, pci_write_config8(), and SMRAMC.

Referenced by smm_lock().

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smm_info()

void smm_info	(	uintptr_t *	perm_smbase,
		size_t *	perm_smsize,
		size_t *	smm_save_state_size
	)

Definition at line 213 of file smmrelocate.c.

References BIOS_DEBUG, fill_in_relocation_params(), smm_relocation_params::ied_size, printk, setup_ied_area(), smm_reloc_params, smm_subregion(), and SMM_SUBREGION_HANDLER.

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smm_initialize()

void smm_initialize

(

void

)

Definition at line 227 of file smmrelocate.c.

References BIOS_DEBUG, printk, smm_initiate_relocation(), smm_reloc_params, smm_relocation_params::smm_save_state_in_msrs, and smm_southbridge_clear_state().

Referenced by pre_mp_smm_init().

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smm_lock()

void smm_lock

(

void

)

Definition at line 261 of file smmrelocate.c.

References BIOS_DEBUG, C_BASE_SEG, D_LCK, ESMRAMC, G_SMRAME, northbridge_write_smram(), PCI_DEV, pci_or_config8(), pci_write_config8(), pcidev_on_root(), pcidev_path_on_root(), printk, SA_DEVFN_ROOT, SMRAM, SMRAMC, and T_EN.

Referenced by post_mp_init().

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smm_relocate()

void smm_relocate

(

void

)

Definition at line 247 of file smmrelocate.c.

References boot_cpu(), smm_initiate_relocation(), smm_initiate_relocation_parallel(), smm_reloc_params, and smm_relocation_params::smm_save_state_in_msrs.

Referenced by per_cpu_smm_trigger().

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smm_relocation_handler()

void smm_relocation_handler	(	int	cpu,
		uintptr_t	curr_smbase,
		uintptr_t	staggered_smbase
	)

Definition at line 90 of file smmrelocate.c.

smm_southbridge_clear_state()

void smm_southbridge_clear_state

(

void

)

Definition at line 22 of file smm.c.

References ACPI_BASE_ADDRESS, APMC_EN, BIOS_DEBUG, BIOS_INFO, BIOS_SPEW, clear_alt_status(), clear_gpe_status(), clear_pm1_status(), clear_pmc_status(), clear_smi_status(), clear_tco_status(), CONFIG, get_pmbase(), inl(), pch_log_state(), pmc_clear_all_gpe_status(), pmc_clear_pm1_status(), pmc_clear_smi_status(), pmc_clear_tco_status(), pmc_get_smi_en(), printk, reset_gpe0_status(), reset_pm1_status(), reset_smi_status(), reset_tco_status(), SMI_EN, smi_enabled(), and southcluster_log_state().

Referenced by smm_initialize().

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write_prmrr()

static void write_prmrr ( struct smm_relocation_params *  relo_params )

inlinestatic

Definition at line 67 of file smm_reloc.h.

References BIOS_DEBUG, msr_struct::lo, MSR_PRMRR_PHYS_BASE, MSR_PRMRR_PHYS_MASK, printk, smm_relocation_params::prmrr_base, smm_relocation_params::prmrr_mask, and wrmsr().

Referenced by smm_relocation_handler().

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write_smrr()

static void write_smrr ( struct smm_relocation_params *  relo_params )

inlinestatic

Definition at line 59 of file smm_reloc.h.

References BIOS_DEBUG, IA32_SMRR_PHYS_BASE, IA32_SMRR_PHYS_MASK, msr_struct::lo, printk, smm_relocation_params::smrr_base, smm_relocation_params::smrr_mask, and wrmsr().

Referenced by smm_relocation_handler().

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write_uncore_prmrr()

static void write_uncore_prmrr ( struct smm_relocation_params *  relo_params )

inlinestatic

Definition at line 75 of file smm_reloc.h.

References BIOS_DEBUG, msr_struct::lo, MSR_UNCORE_PRMRR_PHYS_BASE, MSR_UNCORE_PRMRR_PHYS_MASK, printk, smm_relocation_params::uncore_prmrr_base, smm_relocation_params::uncore_prmrr_mask, and wrmsr().

Referenced by smm_relocation_handler().

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Variable Documentation

__packed

struct ied_header __packed

smm_reloc_params

struct smm_relocation_params smm_reloc_params

extern

Definition at line 1 of file smm_reloc.c.

Referenced by get_smm_info(), relocation_handler(), smm_info(), smm_initialize(), smm_relocate(), and smm_relocation_handler().