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| author | Marc Zyngier <maz@kernel.org> | 2022-03-11 17:39:47 +0000 |
|---|---|---|
| committer | Marc Zyngier <maz@kernel.org> | 2022-03-18 14:02:33 +0000 |
| commit | 06394531b425794dc56f3d525b7994d25b8072f7 (patch) | |
| tree | 8476992b49f955ad0693faa13db536bfbaa11f41 /arch/arm64/include | |
| parent | 9872e6bc08d6ef6de79717ff6bbff0f297c134ef (diff) | |
| download | linux-06394531b425794dc56f3d525b7994d25b8072f7.tar.bz2 | |
KVM: arm64: Generalise VM features into a set of flags
We currently deal with a set of booleans for VM features,
while they could be better represented as set of flags
contained in an unsigned long, similarily to what we are
doing on the CPU side.
Signed-off-by: Marc Zyngier <maz@kernel.org>
[Oliver: Flag-ify the 'ran_once' boolean]
Signed-off-by: Oliver Upton <oupton@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20220311174001.605719-2-oupton@google.com
Diffstat (limited to 'arch/arm64/include')
| -rw-r--r-- | arch/arm64/include/asm/kvm_host.h | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h index 76f795b628f1..0e96087885fe 100644 --- a/arch/arm64/include/asm/kvm_host.h +++ b/arch/arm64/include/asm/kvm_host.h @@ -122,7 +122,12 @@ struct kvm_arch { * should) opt in to this feature if KVM_CAP_ARM_NISV_TO_USER is * supported. */ - bool return_nisv_io_abort_to_user; +#define KVM_ARCH_FLAG_RETURN_NISV_IO_ABORT_TO_USER 0 + /* Memory Tagging Extension enabled for the guest */ +#define KVM_ARCH_FLAG_MTE_ENABLED 1 + /* At least one vCPU has ran in the VM */ +#define KVM_ARCH_FLAG_HAS_RAN_ONCE 2 + unsigned long flags; /* * VM-wide PMU filter, implemented as a bitmap and big enough for @@ -135,10 +140,6 @@ struct kvm_arch { u8 pfr0_csv2; u8 pfr0_csv3; - - /* Memory Tagging Extension enabled for the guest */ - bool mte_enabled; - bool ran_once; }; struct kvm_vcpu_fault_info { @@ -810,7 +811,9 @@ bool kvm_arm_vcpu_is_finalized(struct kvm_vcpu *vcpu); #define kvm_arm_vcpu_sve_finalized(vcpu) \ ((vcpu)->arch.flags & KVM_ARM64_VCPU_SVE_FINALIZED) -#define kvm_has_mte(kvm) (system_supports_mte() && (kvm)->arch.mte_enabled) +#define kvm_has_mte(kvm) \ + (system_supports_mte() && \ + test_bit(KVM_ARCH_FLAG_MTE_ENABLED, &(kvm)->arch.flags)) #define kvm_vcpu_has_pmu(vcpu) \ (test_bit(KVM_ARM_VCPU_PMU_V3, (vcpu)->arch.features)) |