Commit 1765edba authored by Dave Martin's avatar Dave Martin Committed by Marc Zyngier

KVM: arm64: Add a vcpu flag to control SVE visibility for the guest

Since SVE will be enabled or disabled on a per-vcpu basis, a flag
is needed in order to track which vcpus have it enabled.

This patch adds a suitable flag and a helper for checking it.
Signed-off-by: default avatarDave Martin <Dave.Martin@arm.com>
Reviewed-by: default avatarAlex Bennée <alex.bennee@linaro.org>
Tested-by: default avatarzhang.lei <zhang.lei@jp.fujitsu.com>
Signed-off-by: default avatarMarc Zyngier <marc.zyngier@arm.com>
parent 04950674
......@@ -328,6 +328,10 @@ struct kvm_vcpu_arch {
#define KVM_ARM64_FP_HOST (1 << 2) /* host FP regs loaded */
#define KVM_ARM64_HOST_SVE_IN_USE (1 << 3) /* backup for host TIF_SVE */
#define KVM_ARM64_HOST_SVE_ENABLED (1 << 4) /* SVE enabled for EL0 */
#define KVM_ARM64_GUEST_HAS_SVE (1 << 5) /* SVE exposed to guest */
#define vcpu_has_sve(vcpu) (system_supports_sve() && \
((vcpu)->arch.flags & KVM_ARM64_GUEST_HAS_SVE))
#define vcpu_gp_regs(v) (&(v)->arch.ctxt.gp_regs)
......
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