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target/i386: move paging mode constants from SVM to cpu.h

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We will reuse the page walker for both SVM and regular accesses.  To do
so we will build a function that receives the currently active paging
mode; start by including in cpu.h the constants and the function to go
from cr4/hflags/efer to the paging mode.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini 2021-02-26 09:45:05 -05:00
parent 6ed6b0d380
commit 616a89eaad
4 changed files with 31 additions and 21 deletions
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8
target/i386/cpu.h
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@ -303,6 +303,11 @@ typedef enum X86Seg {
#define PG_ERROR_I_D_MASK 0x10
#define PG_ERROR_PK_MASK 0x20
#define PG_MODE_PAE (1 << 0)
#define PG_MODE_LMA (1 << 1)
#define PG_MODE_NXE (1 << 2)
#define PG_MODE_PSE (1 << 3)
#define MCG_CTL_P (1ULL<<8) /* MCG_CAP register available */
#define MCG_SER_P (1ULL<<24) /* MCA recovery/new status bits */
#define MCG_LMCE_P (1ULL<<27) /* Local Machine Check Supported */
@ -2105,6 +2110,9 @@ static inline bool cpu_vmx_maybe_enabled(CPUX86State *env)
((env->cr[4] & CR4_VMXE_MASK) || (env->hflags & HF_SMM_MASK));
}
/* excp_helper.c */
int get_pg_mode(CPUX86State *env);
/* fpu_helper.c */
void update_fp_status(CPUX86State *env);
void update_mxcsr_status(CPUX86State *env);