linux/arch/x86/kvm/smm.c

/* SPDX-License-Identifier: GPL-2.0 */
#define pr_fmt(fmt) …

#include <linux/kvm_host.h>
#include "x86.h"
#include "kvm_cache_regs.h"
#include "kvm_emulate.h"
#include "smm.h"
#include "cpuid.h"
#include "trace.h"

#define CHECK_SMRAM32_OFFSET …

#define CHECK_SMRAM64_OFFSET …

static void check_smram_offsets(void)
{ … }

#undef CHECK_SMRAM64_OFFSET
#undef CHECK_SMRAM32_OFFSET


void kvm_smm_changed(struct kvm_vcpu *vcpu, bool entering_smm)
{ … }

void process_smi(struct kvm_vcpu *vcpu)
{ … }

static u32 enter_smm_get_segment_flags(struct kvm_segment *seg)
{ … }

static void enter_smm_save_seg_32(struct kvm_vcpu *vcpu,
				  struct kvm_smm_seg_state_32 *state,
				  u32 *selector, int n)
{ … }

#ifdef CONFIG_X86_64
static void enter_smm_save_seg_64(struct kvm_vcpu *vcpu,
				  struct kvm_smm_seg_state_64 *state,
				  int n)
{ … }
#endif

static void enter_smm_save_state_32(struct kvm_vcpu *vcpu,
				    struct kvm_smram_state_32 *smram)
{ … }

#ifdef CONFIG_X86_64
static void enter_smm_save_state_64(struct kvm_vcpu *vcpu,
				    struct kvm_smram_state_64 *smram)
{ … }
#endif

void enter_smm(struct kvm_vcpu *vcpu)
{ … }

static void rsm_set_desc_flags(struct kvm_segment *desc, u32 flags)
{ … }

static int rsm_load_seg_32(struct kvm_vcpu *vcpu,
			   const struct kvm_smm_seg_state_32 *state,
			   u16 selector, int n)
{ … }

#ifdef CONFIG_X86_64

static int rsm_load_seg_64(struct kvm_vcpu *vcpu,
			   const struct kvm_smm_seg_state_64 *state,
			   int n)
{ … }
#endif

static int rsm_enter_protected_mode(struct kvm_vcpu *vcpu,
				    u64 cr0, u64 cr3, u64 cr4)
{ … }

static int rsm_load_state_32(struct x86_emulate_ctxt *ctxt,
			     const struct kvm_smram_state_32 *smstate)
{ … }

#ifdef CONFIG_X86_64
static int rsm_load_state_64(struct x86_emulate_ctxt *ctxt,
			     const struct kvm_smram_state_64 *smstate)
{ … }
#endif

int emulator_leave_smm(struct x86_emulate_ctxt *ctxt)
{ … }