[RFC/RFT PATCH 3/3] arm64: KVM: keep trapping of VM sysreg writes enabled
From: Ard Biesheuvel <hidden>
Date: 2015-02-19 10:54:46
Also in:
kvm, kvmarm
Subsystem:
arm port, arm64 port (aarch64 architecture), kernel virtual machine for arm64 (kvm/arm64), the rest · Maintainers:
Russell King, Catalin Marinas, Will Deacon, Marc Zyngier, Oliver Upton, Linus Torvalds
--- arch/arm/kvm/mmu.c | 2 +- arch/arm64/include/asm/kvm_arm.h | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/arm/kvm/mmu.c b/arch/arm/kvm/mmu.c
index 136662547ca6..fa8ec55220ea 100644
--- a/arch/arm/kvm/mmu.c
+++ b/arch/arm/kvm/mmu.c@@ -1530,7 +1530,7 @@ void kvm_toggle_cache(struct kvm_vcpu *vcpu, bool was_enabled) stage2_flush_vm(vcpu->kvm); /* Caches are now on, stop trapping VM ops (until a S/W op) */ - if (now_enabled) + if (0)//now_enabled) vcpu_set_hcr(vcpu, vcpu_get_hcr(vcpu) & ~HCR_TVM); trace_kvm_toggle_cache(*vcpu_pc(vcpu), was_enabled, now_enabled);
diff --git a/arch/arm64/include/asm/kvm_arm.h b/arch/arm64/include/asm/kvm_arm.h
index 8afb863f5a9e..437e1ec17539 100644
--- a/arch/arm64/include/asm/kvm_arm.h
+++ b/arch/arm64/include/asm/kvm_arm.h@@ -75,7 +75,7 @@ * FMO: Override CPSR.F and enable signaling with VF * SWIO: Turn set/way invalidates into set/way clean+invalidate */ -#define HCR_GUEST_FLAGS (HCR_TSC | HCR_TSW | HCR_TWE | HCR_TWI | HCR_VM | \ +#define HCR_GUEST_FLAGS (HCR_TSC | /* HCR_TSW | */ HCR_TWE | HCR_TWI | HCR_VM | \ HCR_TVM | HCR_BSU_IS | HCR_FB | HCR_TAC | \ HCR_AMO | HCR_SWIO | HCR_TIDCP | HCR_RW) #define HCR_VIRT_EXCP_MASK (HCR_VA | HCR_VI | HCR_VF)
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1.8.3.2