diff options
| author | Marc Zyngier <maz@kernel.org> | 2023-02-09 17:58:19 +0000 |
|---|---|---|
| committer | Oliver Upton <oliver.upton@linux.dev> | 2023-02-11 10:13:30 +0000 |
| commit | 9f75b6d447d712b6ed9abc869eedf456fe7f5e9b (patch) | |
| tree | 9b753d6ac54a1fb3df0005a546d72a2e886811f9 /arch/arm64/include | |
| parent | 280b748e871e5a9bd61fc13019b8cbda6e0242dd (diff) | |
KVM: arm64: nv: Filter out unsupported features from ID regs
As there is a number of features that we either can't support,
or don't want to support right away with NV, let's add some
basic filtering so that we don't advertize silly things to the
EL2 guest.
Whilst we are at it, advertize FEAT_TTL as well as FEAT_GTG, which
the NV implementation will implement.
Reviewed-by: Ganapatrao Kulkarni <gankulkarni@os.amperecomputing.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20230209175820.1939006-18-maz@kernel.org
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
Diffstat (limited to 'arch/arm64/include')
| -rw-r--r-- | arch/arm64/include/asm/kvm_nested.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/arm64/include/asm/kvm_nested.h b/arch/arm64/include/asm/kvm_nested.h index fd601ea68d13..8fb67f032fd1 100644 --- a/arch/arm64/include/asm/kvm_nested.h +++ b/arch/arm64/include/asm/kvm_nested.h @@ -11,4 +11,10 @@ static inline bool vcpu_has_nv(const struct kvm_vcpu *vcpu) test_bit(KVM_ARM_VCPU_HAS_EL2, vcpu->arch.features)); } +struct sys_reg_params; +struct sys_reg_desc; + +void access_nested_id_reg(struct kvm_vcpu *v, struct sys_reg_params *p, + const struct sys_reg_desc *r); + #endif /* __ARM64_KVM_NESTED_H */ |