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authorRadim Krčmář <rkrcmar@redhat.com>2018-02-01 17:04:17 +0300
committerRadim Krčmář <rkrcmar@redhat.com>2018-02-01 17:04:17 +0300
commit7bf14c28ee776be567855bd39ed8ff795ea19f55 (patch)
tree6113748c673e85fccc2c56c050697789c00c6bc2 /arch/arm64/kvm
parent87cedc6be55954c6efd6eca2e694132513f65a2a (diff)
parent5fa4ec9cb2e6679e2f828033726f758ea314b9c5 (diff)
downloadlinux-7bf14c28ee776be567855bd39ed8ff795ea19f55.tar.xz
Merge branch 'x86/hyperv' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Topic branch for stable KVM clockource under Hyper-V. Thanks to Christoffer Dall for resolving the ARM conflict.
Diffstat (limited to 'arch/arm64/kvm')
-rw-r--r--arch/arm64/kvm/handle_exit.c4
-rw-r--r--arch/arm64/kvm/hyp-init.S1
-rw-r--r--arch/arm64/kvm/hyp/debug-sr.c3
3 files changed, 6 insertions, 2 deletions
diff --git a/arch/arm64/kvm/handle_exit.c b/arch/arm64/kvm/handle_exit.c
index 304203fa9e33..e60494f1eef9 100644
--- a/arch/arm64/kvm/handle_exit.c
+++ b/arch/arm64/kvm/handle_exit.c
@@ -45,7 +45,7 @@ static int handle_hvc(struct kvm_vcpu *vcpu, struct kvm_run *run)
ret = kvm_psci_call(vcpu);
if (ret < 0) {
- kvm_inject_undefined(vcpu);
+ vcpu_set_reg(vcpu, 0, ~0UL);
return 1;
}
@@ -54,7 +54,7 @@ static int handle_hvc(struct kvm_vcpu *vcpu, struct kvm_run *run)
static int handle_smc(struct kvm_vcpu *vcpu, struct kvm_run *run)
{
- kvm_inject_undefined(vcpu);
+ vcpu_set_reg(vcpu, 0, ~0UL);
return 1;
}
diff --git a/arch/arm64/kvm/hyp-init.S b/arch/arm64/kvm/hyp-init.S
index 3f9615582377..870828c364c5 100644
--- a/arch/arm64/kvm/hyp-init.S
+++ b/arch/arm64/kvm/hyp-init.S
@@ -151,6 +151,7 @@ reset:
mrs x5, sctlr_el2
ldr x6, =SCTLR_ELx_FLAGS
bic x5, x5, x6 // Clear SCTL_M and etc
+ pre_disable_mmu_workaround
msr sctlr_el2, x5
isb
diff --git a/arch/arm64/kvm/hyp/debug-sr.c b/arch/arm64/kvm/hyp/debug-sr.c
index 360455f86346..dabb5cc7b087 100644
--- a/arch/arm64/kvm/hyp/debug-sr.c
+++ b/arch/arm64/kvm/hyp/debug-sr.c
@@ -75,6 +75,9 @@ static void __hyp_text __debug_save_spe_nvhe(u64 *pmscr_el1)
{
u64 reg;
+ /* Clear pmscr in case of early return */
+ *pmscr_el1 = 0;
+
/* SPE present on this CPU? */
if (!cpuid_feature_extract_unsigned_field(read_sysreg(id_aa64dfr0_el1),
ID_AA64DFR0_PMSVER_SHIFT))