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target/i386: introduce function to query MMU indices

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Remove knowledge of specific MMU indexes (other than MMU_NESTED_IDX and
MMU_PHYS_IDX) from mmu_translate().  This will make it possible to split
32-bit and 64-bit MMU indexes.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini 2024-01-02 15:36:51 +01:00
parent d09c79010f
commit 5f97afe254
2 changed files with 12 additions and 2 deletions
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10
target/i386/cpu.h
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@ -2305,6 +2305,16 @@ uint64_t cpu_get_tsc(CPUX86State *env);
#define MMU_NESTED_IDX 3
#define MMU_PHYS_IDX 4
static inline bool is_mmu_index_smap(int mmu_index)
{
return mmu_index == MMU_KSMAP_IDX;
}
static inline bool is_mmu_index_user(int mmu_index)
{
return mmu_index == MMU_USER_IDX;
}
static inline int cpu_mmu_index_kernel(CPUX86State *env)
{
return !(env->hflags & HF_SMAP_MASK) ? MMU_KNOSMAP_IDX :