diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm64/kernel/cpufeature.c | 3 | ||||
| -rw-r--r-- | arch/arm64/kvm/reset.c | 11 |
2 files changed, 10 insertions, 4 deletions
diff --git a/arch/arm64/kernel/cpufeature.c b/arch/arm64/kernel/cpufeature.c index be8a634abdd4..1c5bfe48d381 100644 --- a/arch/arm64/kernel/cpufeature.c +++ b/arch/arm64/kernel/cpufeature.c @@ -2337,7 +2337,8 @@ static void verify_hyp_capabilities(void) } /* Verify IPA range */ - parange = mmfr0 & 0x7; + parange = cpuid_feature_extract_unsigned_field(mmfr0, + ID_AA64MMFR0_PARANGE_SHIFT); ipa_max = id_aa64mmfr0_parange_to_phys_shift(parange); if (ipa_max < get_kvm_ipa_limit()) { pr_crit("CPU%d: IPA range mismatch\n", smp_processor_id()); diff --git a/arch/arm64/kvm/reset.c b/arch/arm64/kvm/reset.c index d4eb6612bb3c..d8800ef4f42d 100644 --- a/arch/arm64/kvm/reset.c +++ b/arch/arm64/kvm/reset.c @@ -340,8 +340,11 @@ u32 get_kvm_ipa_limit(void) void kvm_set_ipa_limit(void) { unsigned int ipa_max, pa_max, va_max, parange; + u64 mmfr0; - parange = read_sanitised_ftr_reg(SYS_ID_AA64MMFR0_EL1) & 0x7; + mmfr0 = read_sanitised_ftr_reg(SYS_ID_AA64MMFR0_EL1); + parange = cpuid_feature_extract_unsigned_field(mmfr0, + ID_AA64MMFR0_PARANGE_SHIFT); pa_max = id_aa64mmfr0_parange_to_phys_shift(parange); /* Clamp the IPA limit to the PA size supported by the kernel */ @@ -387,7 +390,7 @@ void kvm_set_ipa_limit(void) */ int kvm_arm_setup_stage2(struct kvm *kvm, unsigned long type) { - u64 vtcr = VTCR_EL2_FLAGS; + u64 vtcr = VTCR_EL2_FLAGS, mmfr0; u32 parange, phys_shift; u8 lvls; @@ -403,7 +406,9 @@ int kvm_arm_setup_stage2(struct kvm *kvm, unsigned long type) phys_shift = KVM_PHYS_SHIFT; } - parange = read_sanitised_ftr_reg(SYS_ID_AA64MMFR0_EL1) & 7; + mmfr0 = read_sanitised_ftr_reg(SYS_ID_AA64MMFR0_EL1); + parange = cpuid_feature_extract_unsigned_field(mmfr0, + ID_AA64MMFR0_PARANGE_SHIFT); if (parange > ID_AA64MMFR0_PARANGE_MAX) parange = ID_AA64MMFR0_PARANGE_MAX; vtcr |= parange << VTCR_EL2_PS_SHIFT; |