StmPlatformSmm.c File Reference

#include <security/intel/stm/StmApi.h>
#include <security/intel/stm/SmmStm.h>
#include <security/intel/stm/StmPlatformResource.h>
#include <security/tpm/tspi.h>
#include <cpu/x86/smm.h>
#include <cpu/x86/msr.h>
#include <cbfs.h>
#include <console/console.h>
#include <stdbool.h>
#include <stdint.h>
#include <arch/rom_segs.h>

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Data Structures
struct	descriptor

Macros
#define	FXSAVE_SIZE   512

Functions
int	load_stm_image (uintptr_t mseg)
static void	read_gdtr (struct descriptor *gdtr)
void	setup_smm_descriptor (void *smbase, int32_t apic_id, int32_t entry32_off)
void	stm_setup (uintptr_t mseg, int cpu, uintptr_t smbase, uintptr_t base_smbase, uint32_t offset32)

Variables
uint8_t *	stm_resource_heap
static int	stm_load_status = 0

Macro Definition Documentation

FXSAVE_SIZE

#define FXSAVE_SIZE   512

Definition at line 135 of file StmPlatformSmm.c.

Function Documentation

load_stm_image()

int load_stm_image

(

uintptr_t

mseg

)

Definition at line 21 of file StmPlatformSmm.c.

References BIOS_DEBUG, cbfs_load(), HARDWARE_STM_HEADER::cr3_offset, STM_HEADER::hw_stm_hdr, memset(), HARDWARE_STM_HEADER::monitor_features, printk, SOFTWARE_STM_HEADER::static_image_size, stm_check_stm_image(), stm_gen_4g_pagetable_x64(), HARDWARE_STM_HEADER::stm_header_revision, and STM_HEADER::sw_stm_hdr.

Referenced by stm_setup().

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read_gdtr()

static void read_gdtr ( struct descriptor *  gdtr )

static

Definition at line 75 of file StmPlatformSmm.c.

Referenced by setup_smm_descriptor().

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setup_smm_descriptor()

void setup_smm_descriptor	(	void *	smbase,
		int32_t	apic_id,
		int32_t	entry32_off
	)

Definition at line 80 of file StmPlatformSmm.c.

References TXT_PROCESSOR_SMM_DESCRIPTOR::acpi_rsdp, descriptor::base, BIOS_DEBUG, TXT_PROCESSOR_SMM_DESCRIPTOR::bios_hw_resource_requirements_ptr, get_stm_resource(), descriptor::limit, TXT_PROCESSOR_SMM_DESCRIPTOR::local_apic_id, memcpy(), memset(), printk, read_gdtr(), ROM_CODE_SEG, ROM_DATA_SEG, TXT_PROCESSOR_SMM_DESCRIPTOR::signature, TXT_PROCESSOR_SMM_DESCRIPTOR::size, TXT_PROCESSOR_SMM_DESCRIPTOR::smm_cs, SMM_DEFAULT_BASE, TXT_PROCESSOR_SMM_DESCRIPTOR::smm_descriptor_ver_major, TXT_PROCESSOR_SMM_DESCRIPTOR::smm_descriptor_ver_minor, TXT_PROCESSOR_SMM_DESCRIPTOR::smm_ds, SMM_ENTRY_OFFSET, TXT_PROCESSOR_SMM_DESCRIPTOR::smm_gdt_ptr, TXT_PROCESSOR_SMM_DESCRIPTOR::smm_gdt_size, TXT_PROCESSOR_SMM_DESCRIPTOR::smm_other_segment, SMM_PSD_OFFSET, TXT_PROCESSOR_SMM_DESCRIPTOR::smm_smi_handler_rip, TXT_PROCESSOR_SMM_DESCRIPTOR::smm_ss, SMM_TASK_STATE_SEG, TXT_PROCESSOR_SMM_DESCRIPTOR::smm_tr, TXT_PROCESSOR_SMM_DESCRIPTOR_SIGNATURE, TXT_PROCESSOR_SMM_DESCRIPTOR_VERSION_MAJOR, and TXT_PROCESSOR_SMM_DESCRIPTOR_VERSION_MINOR.

Referenced by stm_setup().

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stm_setup()

void stm_setup	(	uintptr_t	mseg,
		int	cpu,
		uintptr_t	smbase,
		uintptr_t	base_smbase,
		uint32_t	offset32
	)

Definition at line 139 of file StmPlatformSmm.c.

References add_resources_cmd(), BIOS_DEBUG, BIOS_WARNING, msr_struct::hi, IA32_SMM_MONITOR_CTL_MSR, IA32_SMM_MONITOR_VALID, IA32_VMX_BASIC_MSR, msr_struct::lo, load_stm_image(), printk, rdmsr(), setup_smm_descriptor(), stm_load_status, stm_resource_heap, VMX_BASIC_HI_DUAL_MONITOR, and wrmsr().

Referenced by smm_do_relocation().

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Variable Documentation

stm_load_status

int stm_load_status = 0

static

Definition at line 137 of file StmPlatformSmm.c.

Referenced by stm_setup().

stm_resource_heap

uint8_t* stm_resource_heap

extern

Definition at line 95 of file SmmStm.c.

Referenced by add_pi_resource(), and stm_setup().