Commit aae35f4f authored by Oliver Upton's avatar Oliver Upton
Browse files

KVM: arm64: Treat vCPU with pending SError as runnable 



Per R_VRLPB, a pending SError is a WFI wakeup event regardless of
PSTATE.A, meaning that the vCPU is runnable. Sample VSE in addition to
the other IRQ lines.

Reviewed-by: default avatarMarc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20250708172532.1699409-5-oliver.upton@linux.dev


Signed-off-by: default avatarOliver Upton <oliver.upton@linux.dev>
parent 1d6fea76

arch/arm64/kvm/arm.c

+2 −1
Original line number Diff line number Diff line
@@ -740,7 +740,8 @@ int kvm_arch_vcpu_ioctl_set_mpstate(struct kvm_vcpu *vcpu, 
 */

int kvm_arch_vcpu_runnable(struct kvm_vcpu *v)

{

	bool irq_lines = *vcpu_hcr(v) & (HCR_VI | HCR_VF);

	bool irq_lines = *vcpu_hcr(v) & (HCR_VI | HCR_VF | HCR_VSE);



	return ((irq_lines || kvm_vgic_vcpu_pending_irq(v))

		&& !kvm_arm_vcpu_stopped(v) && !v->arch.pause);

}