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x86: Export some definition of MTRR

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For KVM can reuse the type define, and need them to support shadow MTRR.

Signed-off-by: Sheng Yang <sheng@linux.intel.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
This commit is contained in:
Sheng Yang
2008-10-09 16:01:53 +08:00
committed by Avi Kivity
parent b558bc0a25
commit 932d27a791
3 changed files with 28 additions and 26 deletions
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25
arch/x86/include/asm/mtrr.h
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@@ -57,6 +57,31 @@ struct mtrr_gentry {
};
#endif /* !__i386__ */
struct mtrr_var_range {
u32 base_lo;
u32 base_hi;
u32 mask_lo;
u32 mask_hi;
};
/* In the Intel processor's MTRR interface, the MTRR type is always held in
an 8 bit field: */
typedef u8 mtrr_type;
#define MTRR_NUM_FIXED_RANGES 88
#define MTRR_MAX_VAR_RANGES 256
struct mtrr_state_type {
struct mtrr_var_range var_ranges[MTRR_MAX_VAR_RANGES];
mtrr_type fixed_ranges[MTRR_NUM_FIXED_RANGES];
unsigned char enabled;
unsigned char have_fixed;
mtrr_type def_type;
};
#define MTRRphysBase_MSR(reg) (0x200 + 2 * (reg))
#define MTRRphysMask_MSR(reg) (0x200 + 2 * (reg) + 1)
/* These are the various ioctls */
#define MTRRIOC_ADD_ENTRY _IOW(MTRR_IOCTL_BASE, 0, struct mtrr_sentry)
#define MTRRIOC_SET_ENTRY _IOW(MTRR_IOCTL_BASE, 1, struct mtrr_sentry)