diff mbox series

[v4,2/8] KVM: arm64: Add predicate for FPMR support in a VM

Message ID 20240820131802.3547589-3-maz@kernel.org (mailing list archive)
State New
Headers show
Series KVM: arm64: Add support for FP8 | expand

Commit Message

Marc Zyngier Aug. 20, 2024, 1:17 p.m. UTC 
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.

Signed-off-by: Marc Zyngier <maz@kernel.org>
---
 arch/arm64/include/asm/kvm_host.h | 4 ++++
 1 file changed, 4 insertions(+)
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Patch

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__ */