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| author | Suzuki K Poulose <suzuki.poulose@arm.com> | 2016-03-22 18:15:55 +0100 |
|---|---|---|
| committer | Christoffer Dall <christoffer.dall@linaro.org> | 2016-04-21 14:57:40 +0200 |
| commit | b1d030a73e9039dcdec951327e9ce9e8d682067f (patch) | |
| tree | 455ab65ae5f4686d4dcdc2850bc7ce723e81cab4 /arch/arm | |
| parent | kvm-arm: arm32: Introduce stage2 page table helpers (diff) | |
| download | linux-b1d030a73e9039dcdec951327e9ce9e8d682067f.tar.xz linux-b1d030a73e9039dcdec951327e9ce9e8d682067f.zip | |
kvm-arm: arm: Introduce hyp page table empty checks
Introduce hyp_pxx_table_empty helpers for checking whether
a given table entry is empty. This will be used explicitly
once we switch to explicit routines for hyp page table walk.
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/include/asm/kvm_mmu.h | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/arch/arm/include/asm/kvm_mmu.h b/arch/arm/include/asm/kvm_mmu.h index 7d207b44a656..5522cdd9dedf 100644 --- a/arch/arm/include/asm/kvm_mmu.h +++ b/arch/arm/include/asm/kvm_mmu.h @@ -160,7 +160,11 @@ static inline bool kvm_page_empty(void *ptr) #define kvm_pte_table_empty(kvm, ptep) kvm_page_empty(ptep) #define kvm_pmd_table_empty(kvm, pmdp) kvm_page_empty(pmdp) -#define kvm_pud_table_empty(kvm, pudp) (0) +#define kvm_pud_table_empty(kvm, pudp) false + +#define hyp_pte_table_empty(ptep) kvm_page_empty(ptep) +#define hyp_pmd_table_empty(pmdp) kvm_page_empty(pmdp) +#define hyp_pud_table_empty(pudp) false static inline void *kvm_get_hwpgd(struct kvm *kvm) { |