search for: vmx_vcpu_run

...le_intercept_for_msr(MSR_IA32_SYSENTER_EIP, false); + vmx_disable_intercept_for_msr(MSR_IA32_DEBUGCTLMSR, false); memcpy(vmx_msr_bitmap_legacy_x2apic_apicv, vmx_msr_bitmap_legacy, PAGE_SIZE); @@ -9285,7 +9285,7 @@ static void vmx_save_host_msrs(struct msr_autoload *m) static void __noclone vmx_vcpu_run(struct kvm_vcpu *vcpu) { struct vcpu_vmx *vmx = to_vmx(vcpu); - unsigned long debugctlmsr, cr3, cr4; + unsigned long cr3, cr4; /* Don't enter VMX if guest state is invalid, let the exit handler start emulation until we arrive back to a valid state */ @@ -9333,7 +9333,6 @@ static voi...

...ax, int, S_IRUGO); +static int msr_autoload_count_max = KVM_VMX_DEFAULT_MSR_AUTO_LOAD_COUNT; + extern const ulong vmx_return; -#define NR_AUTOLOAD_MSRS 8 #define VMCS02_POOL_SIZE 1 struct vmcs { @@ -588,8 +590,8 @@ struct vcpu_vmx { bool __launched; /* temporary, used in vmx_vcpu_run */ struct msr_autoload { unsigned nr; - struct vmx_msr_entry guest[NR_AUTOLOAD_MSRS]; - struct vmx_msr_entry host[NR_AUTOLOAD_MSRS]; + struct vmx_msr_entry *guest; + struct vmx_msr_entry *host; } msr_autoload; struct { int loaded; @@ -1942,6 +1944,7 @@ static void clear_at...

This patch series enables the Last Branch Recording feature for the guest. Instead of trapping each LBR stack MSR access, the MSRs are passthroughed to the guest. Those MSRs are switched (i.e. load and saved) on VMExit and VMEntry. Test: Try "perf record -b ./test_program" on guest. Wei Wang (4): KVM/vmx: re-write the msr auto switch feature KVM/vmx: auto switch

This patch series enables the Last Branch Recording feature for the guest. Instead of trapping each LBR stack MSR access, the MSRs are passthroughed to the guest. Those MSRs are switched (i.e. load and saved) on VMExit and VMEntry. Test: Try "perf record -b ./test_program" on guest. Wei Wang (4): KVM/vmx: re-write the msr auto switch feature KVM/vmx: auto switch

Windows 2k8 R2 guest with updated virtio drivers is idle inside but on the host qemu-kvm process uses 7-15% cpu. Things that have been tried without any significant success - removed tablet device - manually set cpu topology for cores per socket Is it just me or the qemu-kvm has little tolerance with windows?

Windows 2k8 R2 guest with updated virtio drivers is idle inside but on the host qemu-kvm process uses 7-15% cpu. Things that have been tried without any significant success - removed tablet device - manually set cpu topology for cores per socket Is it just me or the qemu-kvm has little tolerance with windows?

...ew(vmx); + struct kvm_mmu *mmu = vcpu->arch.mmu; + + mmu->root_hpa = mmu->root_hpa_altviews[view]; + } + /* * Flush logged GPAs PML buffer, this will make dirty_bitmap more * updated. Another good is, in kvm_vm_ioctl_get_dirty_log, before @@ -6951,12 +7034,21 @@ static fastpath_t vmx_vcpu_run(struct kvm_vcpu *vcpu) return exit_fastpath; } +static void vmx_destroy_eptp_list_page(struct vcpu_vmx *vmx) +{ + if (vmx->eptp_list_pg) { + __free_page(vmx->eptp_list_pg); + vmx->eptp_list_pg = NULL; + } +} + static void vmx_free_vcpu(struct kvm_vcpu *vcpu) { struct vcpu_vmx *v...

This patch series is based on the VM introspection patches (https://lore.kernel.org/kvm/20200721210922.7646-1-alazar at bitdefender.com/), extending the introspection API with EPT Views and Virtualization Exceptions (#VE) support. The purpose of this series is to get an initial feedback and to see if we are on the right track, especially because the changes made to add the EPT views are not small