kvm: rename pfn_t to kvm_pfn_t

[linux-2.6-block.git] / arch / arm64 / include / asm / kvm_mmu.h

diff --git a/arch/arm64/include/asm/kvm_mmu.h b/arch/arm64/include/asm/kvm_mmu.h
index 61505676d0853bb65710fc9ad7746db8f58e4658..736433912a1eb69a0398fa2f01d78cff88533893 100644 (file)
--- a/arch/arm64/include/asm/kvm_mmu.h
+++ b/arch/arm64/include/asm/kvm_mmu.h
@@ -20,6 +20,7 @@
 
 #include <asm/page.h>
 #include <asm/memory.h>
+#include <asm/cpufeature.h>
 
 /*
  * As we only have the TTBR0_EL2 register, we cannot express
@@ -158,7 +159,6 @@ static inline bool kvm_s2pmd_readonly(pmd_t *pmd)
 #define PTRS_PER_S2_PGD_SHIFT  (KVM_PHYS_SHIFT - PGDIR_SHIFT)
 #endif
 #define PTRS_PER_S2_PGD                (1 << PTRS_PER_S2_PGD_SHIFT)
-#define S2_PGD_ORDER           get_order(PTRS_PER_S2_PGD * sizeof(pgd_t))
 
 #define kvm_pgd_index(addr)    (((addr) >> PGDIR_SHIFT) & (PTRS_PER_S2_PGD - 1))
 
@@ -230,7 +230,8 @@ static inline bool vcpu_has_cache_enabled(struct kvm_vcpu *vcpu)
        return (vcpu_sys_reg(vcpu, SCTLR_EL1) & 0b101) == 0b101;
 }
 
-static inline void __coherent_cache_guest_page(struct kvm_vcpu *vcpu, pfn_t pfn,
+static inline void __coherent_cache_guest_page(struct kvm_vcpu *vcpu,
+                                              kvm_pfn_t pfn,
                                               unsigned long size,
                                               bool ipa_uncached)
 {
@@ -302,5 +303,12 @@ static inline void __kvm_extend_hypmap(pgd_t *boot_hyp_pgd,
        merged_hyp_pgd[idmap_idx] = __pgd(__pa(boot_hyp_pgd) | PMD_TYPE_TABLE);
 }
 
+static inline unsigned int kvm_get_vmid_bits(void)
+{
+       int reg = read_system_reg(SYS_ID_AA64MMFR1_EL1);
+
+       return (cpuid_feature_extract_field(reg, ID_AA64MMFR1_VMIDBITS_SHIFT) == 2) ? 16 : 8;
+}
+
 #endif /* __ASSEMBLY__ */
 #endif /* __ARM64_KVM_MMU_H__ */