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| author | Marc Zyngier <maz@kernel.org> | 2021-10-18 17:20:50 +0100 |
|---|---|---|
| committer | Marc Zyngier <maz@kernel.org> | 2021-10-18 17:20:50 +0100 |
| commit | be08c3cf3c5a70c5053c1f2d5f65ea08a1b1c67d (patch) | |
| tree | 6abe2cc23b118169f9eb9a234982af3597a34d0d /arch/arm64/kvm/sys_regs.c | |
| parent | 5f8b2591decb8920ba907373aee3aa48e7cc0d78 (diff) | |
| parent | 07305590114af81817148d181f1eb0af294e40d6 (diff) | |
Merge branch kvm-arm64/pkvm/fixed-features into kvmarm-master/next
* kvm-arm64/pkvm/fixed-features: (22 commits)
: .
: Add the pKVM fixed feature that allows a bunch of exceptions
: to either be forbidden or be easily handled at EL2.
: .
KVM: arm64: pkvm: Give priority to standard traps over pvm handling
KVM: arm64: pkvm: Pass vpcu instead of kvm to kvm_get_exit_handler_array()
KVM: arm64: pkvm: Move kvm_handle_pvm_restricted around
KVM: arm64: pkvm: Consolidate include files
KVM: arm64: pkvm: Preserve pending SError on exit from AArch32
KVM: arm64: pkvm: Handle GICv3 traps as required
KVM: arm64: pkvm: Drop sysregs that should never be routed to the host
KVM: arm64: pkvm: Drop AArch32-specific registers
KVM: arm64: pkvm: Make the ERR/ERX*_EL1 registers RAZ/WI
KVM: arm64: pkvm: Use a single function to expose all id-regs
KVM: arm64: Fix early exit ptrauth handling
KVM: arm64: Handle protected guests at 32 bits
KVM: arm64: Trap access to pVM restricted features
KVM: arm64: Move sanitized copies of CPU features
KVM: arm64: Initialize trap registers for protected VMs
KVM: arm64: Add handlers for protected VM System Registers
KVM: arm64: Simplify masking out MTE in feature id reg
KVM: arm64: Add missing field descriptor for MDCR_EL2
KVM: arm64: Pass struct kvm to per-EC handlers
KVM: arm64: Move early handlers to per-EC handlers
...
Signed-off-by: Marc Zyngier <maz@kernel.org>
Diffstat (limited to 'arch/arm64/kvm/sys_regs.c')
| -rw-r--r-- | arch/arm64/kvm/sys_regs.c | 10 |
1 files changed, 2 insertions, 8 deletions
diff --git a/arch/arm64/kvm/sys_regs.c b/arch/arm64/kvm/sys_regs.c index 1acbc0bbb394..e3ec1a44f94d 100644 --- a/arch/arm64/kvm/sys_regs.c +++ b/arch/arm64/kvm/sys_regs.c @@ -1087,14 +1087,8 @@ static u64 read_id_reg(const struct kvm_vcpu *vcpu, } break; case SYS_ID_AA64PFR1_EL1: - val &= ~ARM64_FEATURE_MASK(ID_AA64PFR1_MTE); - if (kvm_has_mte(vcpu->kvm)) { - u64 pfr, mte; - - pfr = read_sanitised_ftr_reg(SYS_ID_AA64PFR1_EL1); - mte = cpuid_feature_extract_unsigned_field(pfr, ID_AA64PFR1_MTE_SHIFT); - val |= FIELD_PREP(ARM64_FEATURE_MASK(ID_AA64PFR1_MTE), mte); - } + if (!kvm_has_mte(vcpu->kvm)) + val &= ~ARM64_FEATURE_MASK(ID_AA64PFR1_MTE); break; case SYS_ID_AA64ISAR1_EL1: if (!vcpu_has_ptrauth(vcpu)) |