search for: vmcs_writel

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?

...mu-kvm Not tainted 2.6.32-754.2.1.el6.x86_64 #1 Aug 16 03:10:13 hyper-7 kernel: [265397.464985] Call Trace: Aug 16 03:10:13 hyper-7 kernel: [265397.481530] [<ffffffffa0532a9c>] ? vmwrite_error+0x2c/0x30 [kvm_intel] Aug 16 03:10:13 hyper-7 kernel: [265397.520737] [<ffffffffa0532ac0>] ? vmcs_writel+0x20/0x30 [kvm_intel] Aug 16 03:10:13 hyper-7 kernel: [265397.560028] [<ffffffffa0535e63>] ? vmx_fpu_activate+0x93/0xc0 [kvm_intel] Aug 16 03:10:14 hyper-7 kernel: [265397.600072] [<ffffffffa04cd1e7>] ? kvm_arch_vcpu_create+0x37/0x50 [kvm] Aug 16 03:10:14 hyper-7 kernel: [265397.63818...

...trol.intercept & (1ULL << bit)) != 0; diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c index 199ffd318145..3b5778003b58 100644 --- a/arch/x86/kvm/vmx/vmx.c +++ b/arch/x86/kvm/vmx/vmx.c @@ -3388,6 +3388,13 @@ static void vmx_set_gdt(struct kvm_vcpu *vcpu, struct desc_ptr *dt) vmcs_writel(GUEST_GDTR_BASE, dt->address); } +static bool vmx_desc_intercepted(struct kvm_vcpu *vcpu) +{ + struct vcpu_vmx *vmx = to_vmx(vcpu); + + return !!(secondary_exec_controls_get(vmx) & SECONDARY_EXEC_DESC); +} + static bool rmode_segment_valid(struct kvm_vcpu *vcpu, int seg) { struct kvm_...

...kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -5163,7 +5163,7 @@ static void vmx_set_constant_host_state(struct vcpu_vmx *vmx) vmcs_write16(HOST_SS_SELECTOR, __KERNEL_DS); /* 22.2.4 */ vmcs_write16(HOST_TR_SELECTOR, GDT_ENTRY_TSS*8); /* 22.2.4 */ - native_store_idt(&dt); + store_idt(&dt); vmcs_writel(HOST_IDTR_BASE, dt.address); /* 22.2.4 */ vmx->host_idt_base = dt.address; diff --git a/arch/x86/mm/pgtable.c b/arch/x86/mm/pgtable.c index 508a708eb9a6..942391b5b639 100644 --- a/arch/x86/mm/pgtable.c +++ b/arch/x86/mm/pgtable.c @@ -426,10 +426,8 @@ int ptep_set_access_flags(struct vm_are...

...kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -5163,7 +5163,7 @@ static void vmx_set_constant_host_state(struct vcpu_vmx *vmx) vmcs_write16(HOST_SS_SELECTOR, __KERNEL_DS); /* 22.2.4 */ vmcs_write16(HOST_TR_SELECTOR, GDT_ENTRY_TSS*8); /* 22.2.4 */ - native_store_idt(&dt); + store_idt(&dt); vmcs_writel(HOST_IDTR_BASE, dt.address); /* 22.2.4 */ vmx->host_idt_base = dt.address; diff --git a/arch/x86/mm/pgtable.c b/arch/x86/mm/pgtable.c index 508a708eb9a6..942391b5b639 100644 --- a/arch/x86/mm/pgtable.c +++ b/arch/x86/mm/pgtable.c @@ -426,10 +426,8 @@ int ptep_set_access_flags(struct vm_are...

The KVM introspection subsystem provides a facility for applications running on the host or in a separate VM, to control the execution of other VMs (pause, resume, shutdown), query the state of the vCPUs (GPRs, MSRs etc.), alter the page access bits in the shadow page tables (only for the hardware backed ones, eg. Intel's EPT) and receive notifications when events of interest have taken place

The KVM introspection subsystem provides a facility for applications running on the host or in a separate VM, to control the execution of other VM-s (pause, resume, shutdown), query the state of the vCPUs (GPRs, MSRs etc.), alter the page access bits in the shadow page tables (only for the hardware backed ones, eg. Intel's EPT) and receive notifications when events of interest have taken place

The KVM introspection subsystem provides a facility for applications running on the host or in a separate VM, to control the execution of other VM-s (pause, resume, shutdown), query the state of the vCPUs (GPRs, MSRs etc.), alter the page access bits in the shadow page tables (only for the hardware backed ones, eg. Intel's EPT) and receive notifications when events of interest have taken place