From: Marc Zyngier Date: Tue, 20 Aug 2024 13:17:56 +0000 (+0100) Subject: KVM: arm64: Add predicate for FPMR support in a VM X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=d4db98791aa5316677a1da9bfa0788068c9863dc;p=linux.git KVM: arm64: Add predicate for FPMR support in a VM As we are about to check for the advertisement of FPMR support to a guest in a number of places, add a predicate that will gate most of the support code for FPMR. Reviewed-by: Mark Brown Tested-by: Mark Brown Link: https://lore.kernel.org/r/20240820131802.3547589-3-maz@kernel.org Signed-off-by: Marc Zyngier --- diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h index e244e3176b56..e5cf8af54dd6 100644 --- a/arch/arm64/include/asm/kvm_host.h +++ b/arch/arm64/include/asm/kvm_host.h @@ -1475,4 +1475,8 @@ void kvm_set_vm_id_reg(struct kvm *kvm, u32 reg, u64 val); (pa + pi + pa3) == 1; \ }) +#define kvm_has_fpmr(k) \ + (system_supports_fpmr() && \ + kvm_has_feat((k), ID_AA64PFR2_EL1, FPMR, IMP)) + #endif /* __ARM64_KVM_HOST_H__ */