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kvm-arm: arm: Introduce hyp page table empty checks

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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>
This commit is contained in:
Suzuki K Poulose 2016-03-22 17:15:55 +00:00 committed by Christoffer Dall
parent b1ae9a30f1
commit b1d030a73e
1 changed files with 5 additions and 1 deletions
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6
arch/arm/include/asm/kvm_mmu.h
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@ -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)
{