search for: eptp

...EVEL) { for (i = 0; i < 4; ++i) { MMU_WARN_ON(VALID_PAGE(vcpu->arch.mmu->pae_root[i])); diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c index 0256c3a93c87..2024ef4d9a74 100644 --- a/arch/x86/kvm/vmx/vmx.c +++ b/arch/x86/kvm/vmx/vmx.c @@ -3124,6 +3124,32 @@ u64 construct_eptp(struct kvm_vcpu *vcpu, unsigned long root_hpa) return eptp; } +static void vmx_construct_eptp_with_index(struct kvm_vcpu *vcpu, + unsigned short view) +{ + struct vcpu_vmx *vmx = to_vmx(vcpu); + u64 *eptp_list = NULL; + + if (!vmx->eptp_list_pg) + return; + + eptp_list = phys_to_virt...

...umentation/virt/kvm/kvmi.rst b/Documentation/virt/kvm/kvmi.rst index 62138fa4b65c..234eacec4db1 100644 --- a/Documentation/virt/kvm/kvmi.rst +++ b/Documentation/virt/kvm/kvmi.rst @@ -263,11 +263,13 @@ For x86 struct kvmi_features { __u8 singlestep; - __u8 padding[7]; + __u8 vmfunc; + __u8 eptp; + __u8 padding[5]; }; Returns the introspection API version and some of the features supported -by the hardware. +by the hardware (eg. alternate EPT views). This command is always allowed and successful. diff --git a/arch/x86/include/uapi/asm/kvmi.h b/arch/x86/include/uapi/asm/kvmi.h in...

...API with #VE related commands. Adalbert Laz?r (2): KVM: x86: mmu: reindent to avoid lines longer than 80 chars KVM: introspection: mask out non-rwx flags when reading/writing from/to the internal database Marian Rotariu (5): KVM: x86: export .get_vmfunc_status() KVM: x86: export .get_eptp_switching_status() KVM: x86: mmu: add support for EPT switching KVM: x86: add .set_ept_view() KVM: x86: vmx: add support for virtualization exceptions Sean Christopherson (2): KVM: VMX: Define EPT suppress #VE bit (bit 63 in EPT leaf entries) KVM: VMX: Suppress EPT violation #VE by defau...

From: Zhang Xiantao <xiantao.zhang@intel.com> With virtual EPT support, L1 hyerpvisor can use EPT hardware for L2 guest''s memory virtualization. In this way, L2 guest''s performance can be improved sharply. According to our testing, some benchmarks can show > 5x performance gain. Signed-off-by: Zhang Xiantao <xiantao.zhang@intel.com> Zhang Xiantao (11):

..._code; + struct kvmi_vcpu_get_ept_view_reply { + __u16 view; + __u16 padding1; + __u32 padding2; + }; + +Returns the EPT ``view`` the provided vCPU operates on. + +Before getting EPT views, the introspection tool should use +*KVMI_GET_VERSION* to check if the hardware has support for VMFUNC and +EPTP switching mechanism (see **KVMI_GET_VERSION**). If the hardware +does not provide support for these features, the returned EPT view will +be zero. + +* -KVM_EINVAL - the selected vCPU is invalid +* -KVM_EINVAL - the padding is not zero +* -KVM_EAGAIN - the selected vCPU can't be introspected y...

From: Yang Zhang <yang.z.zhang@Intel.com> The follwoing patches are adding the Posted Interrupt supporting to Xen: Posted Interrupt allows vAPIC interrupts to inject into guest directly without any vmexit. - When delivering a interrupt to guest, if target vcpu is running, update Posted-interrupt requests bitmap and send a notification event to the vcpu. Then the vcpu will handle this

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

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