search for: set_msr

.../asm/kvm_host.h index 4d43f5479c0c..8cdb6cece618 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -1056,6 +1056,7 @@ struct kvm_x86_ops { void (*update_bp_intercept)(struct kvm_vcpu *vcpu); int (*get_msr)(struct kvm_vcpu *vcpu, struct msr_data *msr); int (*set_msr)(struct kvm_vcpu *vcpu, struct msr_data *msr); + bool (*msr_write_intercepted)(struct kvm_vcpu *vcpu, u32 msr); u64 (*get_segment_base)(struct kvm_vcpu *vcpu, int seg); void (*get_segment)(struct kvm_vcpu *vcpu, struct kvm_segment *var, int seg); diff --git a/arch/x86/kvm/svm.c b/arch/x...

.../asm/kvm_host.h index 2136f273645a..d8c61cc301fa 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -1060,6 +1060,8 @@ struct kvm_x86_ops { void (*update_bp_intercept)(struct kvm_vcpu *vcpu); int (*get_msr)(struct kvm_vcpu *vcpu, struct msr_data *msr); int (*set_msr)(struct kvm_vcpu *vcpu, struct msr_data *msr); + void (*control_msr_intercept)(struct kvm_vcpu *vcpu, unsigned int msr, + int type, bool enable); bool (*msr_write_intercepted)(struct kvm_vcpu *vcpu, u32 msr); u64 (*get_segment_base)(struct kvm_vcpu *vcpu, int seg); void (*get_segment...

.../asm/kvm_host.h index a3230ab377db..f04a01dac423 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -1110,6 +1110,8 @@ struct kvm_x86_ops { void (*update_bp_intercept)(struct kvm_vcpu *vcpu); int (*get_msr)(struct kvm_vcpu *vcpu, struct msr_data *msr); int (*set_msr)(struct kvm_vcpu *vcpu, struct msr_data *msr); + void (*control_msr_intercept)(struct kvm_vcpu *vcpu, unsigned int msr, + int type, bool enable); bool (*msr_write_intercepted)(struct kvm_vcpu *vcpu, u32 msr); u64 (*get_segment_base)(struct kvm_vcpu *vcpu, int seg); void (*get_segment...

...8,7 @@ struct kvm_x86_ops { void (*vcpu_load)(struct kvm_vcpu *vcpu, int cpu); void (*vcpu_put)(struct kvm_vcpu *vcpu); + bool (*bp_intercepted)(struct kvm_vcpu *vcpu); void (*update_bp_intercept)(struct kvm_vcpu *vcpu); int (*get_msr)(struct kvm_vcpu *vcpu, struct msr_data *msr); int (*set_msr)(struct kvm_vcpu *vcpu, struct msr_data *msr); diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c index 122d4ce3b1ab..df34ab0da4ff 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -607,6 +607,13 @@ static inline void clr_exception_intercept(struct vcpu_svm *svm, int bit) recalc_inter...

...t_enabled(vcpu, KVMI_EVENT_MSR)) + ret = __kvmi_msr_event(vcpu, msr); + + kvmi_put(vcpu->kvm); + + return ret; +} diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index fa583f82298e..5d6ac6c99246 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -1470,6 +1470,9 @@ static int __kvm_set_msr(struct kvm_vcpu *vcpu, u32 index, u64 data, msr.index = index; msr.host_initiated = host_initiated; + if (!host_initiated && !kvmi_msr_event(vcpu, &msr)) + return 1; + return kvm_x86_ops->set_msr(vcpu, &msr); } diff --git a/include/uapi/linux/kvmi.h b/include/uapi/lin...

...t_enabled(vcpu, KVMI_EVENT_MSR)) + ret = __kvmi_msr_event(vcpu, msr); + + kvmi_put(vcpu->kvm); + + return ret; +} diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index c3557a11817f..0add0b0b8f2d 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -1530,6 +1530,9 @@ static int __kvm_set_msr(struct kvm_vcpu *vcpu, u32 index, u64 data, msr.index = index; msr.host_initiated = host_initiated; + if (!host_initiated && !kvmi_msr_event(vcpu, &msr)) + return 1; + return kvm_x86_ops.set_msr(vcpu, &msr); } diff --git a/include/uapi/linux/kvmi.h b/include/uapi/linux/k...

The 6-patch series to follow this email extends KVM-hypervisor and Linux guest running on KVM-hypervisor to support pv-ticket spinlocks, based on Xen's implementation. One hypercall is introduced in KVM hypervisor,that allows a vcpu to kick another vcpu out of halt state. The blocking of vcpu is done using halt() in (lock_spinning) slowpath. one MSR is added to aid live migration. Changes

The 6-patch series to follow this email extends KVM-hypervisor and Linux guest running on KVM-hypervisor to support pv-ticket spinlocks, based on Xen's implementation. One hypercall is introduced in KVM hypervisor,that allows a vcpu to kick another vcpu out of halt state. The blocking of vcpu is done using halt() in (lock_spinning) slowpath. one MSR is added to aid live migration. Changes

...pu_set_regs() KVM: x86: add .bp_intercepted() to struct kvm_x86_ops KVM: x86: add .cr3_write_intercepted() KVM: x86: add .desc_intercepted() KVM: x86: export .msr_write_intercepted() KVM: x86: use MSR_TYPE_R, MSR_TYPE_W and MSR_TYPE_RW with AMD code too KVM: svm: pass struct kvm_vcpu to set_msr_interception() KVM: vmx: pass struct kvm_vcpu to the intercept msr related functions KVM: x86: add .control_singlestep() KVM: x86: export kvm_arch_vcpu_set_guest_debug() KVM: x86: export kvm_inject_pending_exception() KVM: x86: export kvm_vcpu_ioctl_x86_get_xsave() KVM: introspection: r...

...ted() to struct kvm_x86_ops KVM: x86: add .cr3_write_intercepted() KVM: svm: add support for descriptor-table exits KVM: x86: add .desc_intercepted() KVM: x86: export .msr_write_intercepted() KVM: x86: use MSR_TYPE_R, MSR_TYPE_W and MSR_TYPE_RW with AMD KVM: svm: pass struct kvm_vcpu to set_msr_interception() KVM: vmx: pass struct kvm_vcpu to the intercept msr related functions KVM: x86: add .control_singlestep() KVM: x86: export kvm_arch_vcpu_set_guest_debug() KVM: x86: export kvm_inject_pending_exception() KVM: x86: export kvm_vcpu_ioctl_x86_get_xsave() KVM: introspection: a...