diff options
Diffstat (limited to 'tools/testing/selftests/kvm/include/x86/processor.h')
| -rw-r--r-- | tools/testing/selftests/kvm/include/x86/processor.h | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/tools/testing/selftests/kvm/include/x86/processor.h b/tools/testing/selftests/kvm/include/x86/processor.h index 0164ef090787..e17cbbe71b8f 100644 --- a/tools/testing/selftests/kvm/include/x86/processor.h +++ b/tools/testing/selftests/kvm/include/x86/processor.h @@ -1444,6 +1444,8 @@ enum pg_level { #define PTE_PRESENT_MASK(mmu) ((mmu)->arch.pte_masks.present) #define PTE_WRITABLE_MASK(mmu) ((mmu)->arch.pte_masks.writable) #define PTE_USER_MASK(mmu) ((mmu)->arch.pte_masks.user) +#define PTE_READABLE_MASK(mmu) ((mmu)->arch.pte_masks.readable) +#define PTE_EXECUTABLE_MASK(mmu) ((mmu)->arch.pte_masks.executable) #define PTE_ACCESSED_MASK(mmu) ((mmu)->arch.pte_masks.accessed) #define PTE_DIRTY_MASK(mmu) ((mmu)->arch.pte_masks.dirty) #define PTE_HUGE_MASK(mmu) ((mmu)->arch.pte_masks.huge) @@ -1451,13 +1453,23 @@ enum pg_level { #define PTE_C_BIT_MASK(mmu) ((mmu)->arch.pte_masks.c) #define PTE_S_BIT_MASK(mmu) ((mmu)->arch.pte_masks.s) -#define is_present_pte(mmu, pte) (!!(*(pte) & PTE_PRESENT_MASK(mmu))) +/* + * For PTEs without a PRESENT bit (i.e. EPT entries), treat the PTE as present + * if it's executable or readable, as EPT supports execute-only PTEs, but not + * write-only PTEs. + */ +#define is_present_pte(mmu, pte) \ + (PTE_PRESENT_MASK(mmu) ? \ + !!(*(pte) & PTE_PRESENT_MASK(mmu)) : \ + !!(*(pte) & (PTE_READABLE_MASK(mmu) | PTE_EXECUTABLE_MASK(mmu)))) +#define is_executable_pte(mmu, pte) \ + ((*(pte) & (PTE_EXECUTABLE_MASK(mmu) | PTE_NX_MASK(mmu))) == PTE_EXECUTABLE_MASK(mmu)) #define is_writable_pte(mmu, pte) (!!(*(pte) & PTE_WRITABLE_MASK(mmu))) #define is_user_pte(mmu, pte) (!!(*(pte) & PTE_USER_MASK(mmu))) #define is_accessed_pte(mmu, pte) (!!(*(pte) & PTE_ACCESSED_MASK(mmu))) #define is_dirty_pte(mmu, pte) (!!(*(pte) & PTE_DIRTY_MASK(mmu))) #define is_huge_pte(mmu, pte) (!!(*(pte) & PTE_HUGE_MASK(mmu))) -#define is_nx_pte(mmu, pte) (!!(*(pte) & PTE_NX_MASK(mmu))) +#define is_nx_pte(mmu, pte) (!is_executable_pte(mmu, pte)) void tdp_mmu_init(struct kvm_vm *vm, int pgtable_levels, struct pte_masks *pte_masks); |