smmrelocate.c File Reference

#include <assert.h>
#include <string.h>
#include <cpu/x86/lapic.h>
#include <cpu/x86/mp.h>
#include <cpu/intel/em64t101_save_state.h>
#include <cpu/intel/smm_reloc.h>
#include <console/console.h>
#include <smp/node.h>
#include <soc/msr.h>
#include <soc/smmrelocate.h>

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Functions
static void	fill_in_relocation_params (struct smm_relocation_params *params)
static void	setup_ied_area (struct smm_relocation_params *params)
void	get_smm_info (uintptr_t *perm_smbase, size_t *perm_smsize, size_t *smm_save_state_size)
static void	update_save_state (int cpu, uintptr_t curr_smbase, uintptr_t staggered_smbase, struct smm_relocation_params *relo_params)
void	smm_relocation_handler (int cpu, uintptr_t curr_smbase, uintptr_t staggered_smbase)

Function Documentation

fill_in_relocation_params()

static void fill_in_relocation_params ( struct smm_relocation_params *  params )

static

Definition at line 14 of file smmrelocate.c.

References BIOS_WARNING, IS_ALIGNED, KiB, MTRR_PHYS_MASK_VALID, MTRR_TYPE_WRBACK, params, printk, smm_region(), smm_subregion(), and SMM_SUBREGION_CHIPSET.

Referenced by get_smm_info().

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get_smm_info()

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

Definition at line 71 of file smmrelocate.c.

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

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setup_ied_area()

static void setup_ied_area ( struct smm_relocation_params *  params )

static

Definition at line 47 of file smmrelocate.c.

References assert, BIOS_DEBUG, KiB, memcpy(), memset(), MiB, params, printk, and ied_header::signature.

Referenced by get_smm_info().

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smm_relocation_handler()

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

Definition at line 113 of file smmrelocate.c.

References BIOS_DEBUG, msr_struct::lo, MTRR_CAP_MSR, printk, rdmsr(), smm_reloc_params, SMRR_SUPPORTED, update_save_state(), and write_smrr().

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update_save_state()

static void update_save_state ( int  cpu, uintptr_t  curr_smbase, uintptr_t  staggered_smbase, struct smm_relocation_params *  relo_params  )

static

Definition at line 84 of file smmrelocate.c.

References BIOS_DEBUG, smm_relocation_params::ied_base, initial_lapicid(), printk, save_state, and SMM_DEFAULT_SIZE.

Referenced by smm_relocation_handler().

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