legacy_save_state.h

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/* SPDX-License-Identifier: GPL-2.0-only */
 
#ifndef __X86_LEGACY_SAVE_STATE_H__
#define __X86_LEGACY_SAVE_STATE_H__
 
#include <types.h>
 
/* Legacy x86 SMM State-Save Area
 * starts @ 0x7e00
 */
#define SMM_LEGACY_ARCH_OFFSET 0x7e00
 
typedef struct {
        u8      reserved0[248];
        u32     smbase;
        u32     smm_revision;
        u16     io_restart;
        u16     autohalt_restart;
        u8      reserved1[132];
        u32     gdtbase;
        u8      reserved2[8];
        u32     idtbase;
        u8      reserved3[16];
        u32     es;
        u32     cs;
        u32     ss;
        u32     ds;
        u32     fs;
        u32     gs;
        u32     ldtbase;
        u32     tr;
        u32     dr7;
        u32     dr6;
        u32     eax;
        u32     ecx;
        u32     edx;
        u32     ebx;
        u32     esp;
        u32     ebp;
        u32     esi;
        u32     edi;
        u32     eip;
        u32     eflags;
        u32     cr3;
        u32     cr0;
} __packed legacy_smm_state_save_area_t;
 
#endif