diff options
| author | Vitaly Kuznetsov <vkuznets@redhat.com> | 2019-08-22 16:30:21 +0200 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2019-09-24 13:37:14 +0200 |
| commit | 6f6a657c99980485c265363447b269083dd1dc3a (patch) | |
| tree | b230046fc9a363fa078bbcb3d9fa1d3a21075379 /arch/x86/include | |
| parent | KVM/Hyper-V: Add new KVM capability KVM_CAP_HYPERV_DIRECT_TLBFLUSH (diff) | |
| download | linux-6f6a657c99980485c265363447b269083dd1dc3a.tar.xz linux-6f6a657c99980485c265363447b269083dd1dc3a.zip | |
KVM/Hyper-V/VMX: Add direct tlb flush support
Hyper-V provides direct tlb flush function which helps
L1 Hypervisor to handle Hyper-V tlb flush request from
L2 guest. Add the function support for VMX.
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Tianyu Lan <Tianyu.Lan@microsoft.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/include')
| -rw-r--r-- | arch/x86/include/asm/hyperv-tlfs.h | 4 | ||||
| -rw-r--r-- | arch/x86/include/asm/kvm_host.h | 2 |
2 files changed, 6 insertions, 0 deletions
diff --git a/arch/x86/include/asm/hyperv-tlfs.h b/arch/x86/include/asm/hyperv-tlfs.h index 3f08327744d1..038581e91a84 100644 --- a/arch/x86/include/asm/hyperv-tlfs.h +++ b/arch/x86/include/asm/hyperv-tlfs.h @@ -181,6 +181,7 @@ #define HV_X64_ENLIGHTENED_VMCS_RECOMMENDED BIT(14) /* Nested features. These are HYPERV_CPUID_NESTED_FEATURES.EAX bits. */ +#define HV_X64_NESTED_DIRECT_FLUSH BIT(17) #define HV_X64_NESTED_GUEST_MAPPING_FLUSH BIT(18) #define HV_X64_NESTED_MSR_BITMAP BIT(19) @@ -892,4 +893,7 @@ struct hv_tlb_flush_ex { u64 gva_list[]; } __packed; +struct hv_partition_assist_pg { + u32 tlb_lock_count; +}; #endif diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h index 4765ae0fc506..13b35f94dec4 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -844,6 +844,8 @@ struct kvm_hv { /* How many vCPUs have VP index != vCPU index */ atomic_t num_mismatched_vp_indexes; + + struct hv_partition_assist_pg *hv_pa_pg; }; enum kvm_irqchip_mode { |