[PATCH 6/8] arm64: KVM: PMU: Inject UNDEF on read access to PMSWINC_EL0
From: Marc Zyngier <hidden>
Date: 2017-02-22 11:47:26
Also in:
kvm, kvmarm
Subsystem:
arm64 port (aarch64 architecture), kernel virtual machine for arm64 (kvm/arm64), the rest · Maintainers:
Catalin Marinas, Will Deacon, Marc Zyngier, Oliver Upton, Linus Torvalds
PMSWINC_EL0 is a WO register, so let's UNDEF when reading from it. Signed-off-by: Marc Zyngier <redacted> --- arch/arm64/kvm/sys_regs.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/arch/arm64/kvm/sys_regs.c b/arch/arm64/kvm/sys_regs.c
index cbe966658d5e..01c8d841851e 100644
--- a/arch/arm64/kvm/sys_regs.c
+++ b/arch/arm64/kvm/sys_regs.c@@ -778,6 +778,7 @@ static bool access_pmswinc(struct kvm_vcpu *vcpu, struct sys_reg_params *p, return true; } + pend_undef(vcpu); return false; }
--
2.11.0