arch/x86/include/asm/svm.h

Source file repositories/reference/linux-study-clean/arch/x86/include/asm/svm.h

File Facts

System
Linux kernel
Corpus path
arch/x86/include/asm/svm.h
Extension
.h
Size
18233 bytes
Lines
720
Domain
Architecture Layer
Bucket
arch/x86
Inferred role
Architecture Layer: implementation source
Status
source implementation candidate

Why This File Exists

CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.

Dependency Surface

Detected Declarations

Annotated Snippet

struct vmcb_seg {
	u16 selector;
	u16 attrib;
	u32 limit;
	u64 base;
} __packed;

/* Save area definition for legacy and SEV-MEM guests */
struct vmcb_save_area {
	struct vmcb_seg es;
	struct vmcb_seg cs;
	struct vmcb_seg ss;
	struct vmcb_seg ds;
	struct vmcb_seg fs;
	struct vmcb_seg gs;
	struct vmcb_seg gdtr;
	struct vmcb_seg ldtr;
	struct vmcb_seg idtr;
	struct vmcb_seg tr;
	/* Reserved fields are named following their struct offset */
	u8 reserved_0xa0[42];
	u8 vmpl;
	u8 cpl;
	u8 reserved_0xcc[4];
	u64 efer;
	u8 reserved_0xd8[112];
	u64 cr4;
	u64 cr3;
	u64 cr0;
	u64 dr7;
	u64 dr6;
	u64 rflags;
	u64 rip;
	u8 reserved_0x180[88];
	u64 rsp;
	u64 s_cet;
	u64 ssp;
	u64 isst_addr;
	u64 rax;
	u64 star;
	u64 lstar;
	u64 cstar;
	u64 sfmask;
	u64 kernel_gs_base;
	u64 sysenter_cs;
	u64 sysenter_esp;
	u64 sysenter_eip;
	u64 cr2;
	u8 reserved_0x248[32];
	u64 g_pat;
	u64 dbgctl;
	u64 br_from;
	u64 br_to;
	u64 last_excp_from;
	u64 last_excp_to;
	u8 reserved_0x298[72];
	u64 spec_ctrl;		/* Guest version of SPEC_CTRL at 0x2E0 */
} __packed;

/* Save area definition for SEV-ES and SEV-SNP guests */
struct sev_es_save_area {
	struct vmcb_seg es;
	struct vmcb_seg cs;
	struct vmcb_seg ss;
	struct vmcb_seg ds;
	struct vmcb_seg fs;
	struct vmcb_seg gs;
	struct vmcb_seg gdtr;
	struct vmcb_seg ldtr;
	struct vmcb_seg idtr;
	struct vmcb_seg tr;
	u64 pl0_ssp;
	u64 pl1_ssp;
	u64 pl2_ssp;
	u64 pl3_ssp;
	u64 u_cet;
	u8 reserved_0xc8[2];
	u8 vmpl;
	u8 cpl;
	u8 reserved_0xcc[4];
	u64 efer;
	u8 reserved_0xd8[104];
	u64 xss;
	u64 cr4;
	u64 cr3;
	u64 cr0;
	u64 dr7;
	u64 dr6;
	u64 rflags;
	u64 rip;

Annotation

Implementation Notes