On 22/08/19 16:30, lantianyu1986@xxxxxxxxx wrote: > From: Tianyu Lan <Tianyu.Lan@xxxxxxxxxxxxx> > > 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 space should enable this feature only > when Hyper-V hypervisor capability is exposed to guest and KVM profile > is hided. There is a parameter conflict between KVM and Hyper-V hypercall. > We hope L2 guest doesn't use KVM hypercall when the feature is > enabled. Detail please see comment of new API "KVM_CAP_HYPERV_DIRECT_TLBFLUSH" > > Change since v3: > - Update changelog in each patches. > > Change since v2: > - Move hv assist page(hv_pa_pg) from struct kvm to struct kvm_hv. > > Change since v1: > - Fix offset issue in the patch 1. > - Update description of KVM KVM_CAP_HYPERV_DIRECT_TLBFLUSH. > > Tianyu Lan (2): > x86/Hyper-V: Fix definition of struct hv_vp_assist_page > KVM/Hyper-V: Add new KVM capability KVM_CAP_HYPERV_DIRECT_TLBFLUSH > > Vitaly Kuznetsov (1): > KVM/Hyper-V/VMX: Add direct tlb flush support > > Documentation/virtual/kvm/api.txt | 13 +++++++++++++ > arch/x86/include/asm/hyperv-tlfs.h | 24 ++++++++++++++++++----- > arch/x86/include/asm/kvm_host.h | 4 ++++ > arch/x86/kvm/vmx/evmcs.h | 2 ++ > arch/x86/kvm/vmx/vmx.c | 39 ++++++++++++++++++++++++++++++++++++++ > arch/x86/kvm/x86.c | 8 ++++++++ > include/uapi/linux/kvm.h | 1 + > 7 files changed, 86 insertions(+), 5 deletions(-) > Queued, thanks. Paolo
