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Diffstat (limited to 'arch/arm/include/asm/kvm_mmu.h')
-rw-r--r--arch/arm/include/asm/kvm_mmu.h21
1 files changed, 21 insertions, 0 deletions
diff --git a/arch/arm/include/asm/kvm_mmu.h b/arch/arm/include/asm/kvm_mmu.h
index 1bca8f8af442..37ca2a4c6f09 100644
--- a/arch/arm/include/asm/kvm_mmu.h
+++ b/arch/arm/include/asm/kvm_mmu.h
@@ -115,6 +115,27 @@ static inline void kvm_set_s2pmd_writable(pmd_t *pmd)
pmd_val(*pmd) |= L_PMD_S2_RDWR;
}
+static inline void kvm_set_s2pte_readonly(pte_t *pte)
+{
+ pte_val(*pte) = (pte_val(*pte) & ~L_PTE_S2_RDWR) | L_PTE_S2_RDONLY;
+}
+
+static inline bool kvm_s2pte_readonly(pte_t *pte)
+{
+ return (pte_val(*pte) & L_PTE_S2_RDWR) == L_PTE_S2_RDONLY;
+}
+
+static inline void kvm_set_s2pmd_readonly(pmd_t *pmd)
+{
+ pmd_val(*pmd) = (pmd_val(*pmd) & ~L_PMD_S2_RDWR) | L_PMD_S2_RDONLY;
+}
+
+static inline bool kvm_s2pmd_readonly(pmd_t *pmd)
+{
+ return (pmd_val(*pmd) & L_PMD_S2_RDWR) == L_PMD_S2_RDONLY;
+}
+
+
/* Open coded p*d_addr_end that can deal with 64bit addresses */
#define kvm_pgd_addr_end(addr, end) \
({ u64 __boundary = ((addr) + PGDIR_SIZE) & PGDIR_MASK; \