[PATCH V4 1/3] x86/Hyper-V: Fix definition of struct hv_vp_assist_page

From: Tianyu Lan The struct hv_vp_assist_page was defined incorrectly. The "vtl_control" should be u64[3], "nested_enlightenments _control" should be a u64 and there are 7 reserved bytes following "enlighten_vmentry". Fix the definition. Signed-off-by: Tianyu Lan --- Change since v3: -

[PATCH V4 2/3] KVM/Hyper-V: Add new KVM capability KVM_CAP_HYPERV_DIRECT_TLBFLUSH

From: Tianyu Lan Hyper-V direct tlb flush function should be enabled for guest that only uses Hyper-V hypercall. User space hypervisor(e.g, Qemu) can disable KVM identification in CPUID and just exposes Hyper-V identification to make sure the precondition. Add new KVM capability KVM_CAP_ HYPERV_D

[PATCH V4 0/3] KVM/Hyper-V: Add Hyper-V direct tlb flush support

From: Tianyu Lan This patchset is to add Hyper-V direct tlb support in KVM. Hyper-V in L0 can delegate L1 hypervisor to handle tlb flush request from L2 guest when direct tlb flush is enabled in L1. Patch 2 introduces new cap KVM_CAP_HYPERV_DIRECT_TLBFLUSH to enable feature from user space. User

[PATCH V3 2/3] KVM/Hyper-V: Add new KVM cap KVM_CAP_HYPERV_DIRECT_TLBFLUSH

From: Tianyu Lan This patch adds new KVM cap KVM_CAP_HYPERV_DIRECT_TLBFLUSH and let user space to enable direct tlb flush function when only Hyper-V hypervsior capability is exposed to VM. This patch also adds enable_direct_tlbflush callback in the struct kvm_x86_ops and platforms may use it to i

[PATCH V3 1/3] x86/Hyper-V: Fix definition of struct hv_vp_assist_page

From: Tianyu Lan The struct hv_vp_assist_page was defined incorrectly. The "vtl_control" should be u64[3], "nested_enlightenments _control" should be a u64 and there is 7 reserved bytes following "enlighten_vmentry". This patch is to fix it. Signed-off-by: Tianyu Lan -- Change since v1:

[PATCH V3 0/3] KVM/Hyper-V: Add Hyper-V direct tlb flush support

From: Tianyu Lan This patchset is to add Hyper-V direct tlb support in KVM. Hyper-V in L0 can delegate L1 hypervisor to handle tlb flush request from L2 guest when direct tlb flush is enabled in L1. Patch 2 introduces new cap KVM_CAP_HYPERV_DIRECT_TLBFLUSH to enable feature from user space. User

[PATCH V2 0/3] KVM/Hyper-V: Add Hyper-V direct tlb flush support

From: Tianyu Lan This patchset is to add Hyper-V direct tlb support in KVM. Hyper-V in L0 can delegate L1 hypervisor to handle tlb flush request from L2 guest when direct tlb flush is enabled in L1. Patch 2 introduces new cap KVM_CAP_HYPERV_DIRECT_TLBFLUSH to enable feature from user space. User

[PATCH V2 2/3] KVM/Hyper-V: Add new KVM cap KVM_CAP_HYPERV_DIRECT_TLBFLUSH

From: Tianyu Lan This patch adds new KVM cap KVM_CAP_HYPERV_DIRECT_TLBFLUSH and let user space to enable direct tlb flush function when only Hyper-V hypervsior capability is exposed to VM. This patch also adds enable_direct_tlbflush callback in the struct kvm_x86_ops and platforms may use it to i

[PATCH V2 1/3] x86/Hyper-V: Fix definition of struct hv_vp_assist_page

From: Tianyu Lan The struct hv_vp_assist_page was defined incorrectly. The "vtl_control" should be u64[3], "nested_enlightenments _control" should be a u64 and there is 7 reserved bytes following "enlighten_vmentry". This patch is to fix it. Signed-off-by: Tianyu Lan -- Change since v1:

[PATCH 2/3] KVM/Hyper-V: Add new KVM cap KVM_CAP_HYPERV_DIRECT_TLBFLUSH

From: Tianyu Lan This patch adds new KVM cap KVM_CAP_HYPERV_DIRECT_TLBFLUSH and let user space to enable direct tlb flush function when only Hyper-V hypervsior capability is exposed to VM. This patch also adds enable_direct_tlbflush callback in the struct kvm_x86_ops and platforms may use it to i

[PATCH 1/3] x86/Hyper-V: Fix definition of struct hv_vp_assist_page

From: Tianyu Lan The struct hv_vp_assist_page was defined incorrectly. The "vtl_control" should be u64[3], "nested_enlightenments_control" should be a u64 and there is 7 reserved bytes following "enlighten_vmentry". This patch is to fix it. Signed-off-by: Tianyu Lan --- arch/x86/include/asm/hy

[PATCH 0/3] KVM/Hyper-V: Add Hyper-V direct tlb flush support

From: Tianyu Lan This patchset is to add Hyper-V direct tlb support in KVM. Hyper-V in L0 can delegate L1 hypervisor to handle tlb flush request from L2 guest when direct tlb flush is enabled in L1. Patch 2 introduces new cap KVM_CAP_HYPERV_DIRECT_TLBFLUSH to enable feature from user space. Use