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| author |   Wanpeng Li <wanpengli@tencent.com> | 2018-07-23 14:39:52 +0800 |
|---|---|---|
| committer |   Paolo Bonzini <pbonzini@redhat.com> | 2018-08-06 17:59:22 +0200 |
| commit | aaffcfd1e82d3378538408d0310b7424b98d8f81 (patch) | |
| tree | 22101f976e8eac588ce0ae1fade89df4c50204ab /arch/x86/include/uapi/asm/kvm_para.h | |
| parent | KVM: X86: Add kvm hypervisor init time platform setup callback (diff) | |
| download | linux-dev-aaffcfd1e82d3378538408d0310b7424b98d8f81.tar.xz linux-dev-aaffcfd1e82d3378538408d0310b7424b98d8f81.zip | |
KVM: X86: Implement PV IPIs in linux guest
Implement paravirtual apic hooks to enable PV IPIs for KVM if the "send IPI"
hypercall is available. The hypercall lets a guest send IPIs, with
at most 128 destinations per hypercall in 64-bit mode and 64 vCPUs per
hypercall in 32-bit mode.
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Radim Krčmář <rkrcmar@redhat.com>
Cc: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Wanpeng Li <wanpengli@tencent.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/include/uapi/asm/kvm_para.h')
| -rw-r--r-- | arch/x86/include/uapi/asm/kvm_para.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/include/uapi/asm/kvm_para.h b/arch/x86/include/uapi/asm/kvm_para.h index 0ede697c3961..19980ec1a316 100644 --- a/arch/x86/include/uapi/asm/kvm_para.h +++ b/arch/x86/include/uapi/asm/kvm_para.h @@ -28,6 +28,7 @@ #define KVM_FEATURE_PV_UNHALT 7 #define KVM_FEATURE_PV_TLB_FLUSH 9 #define KVM_FEATURE_ASYNC_PF_VMEXIT 10 +#define KVM_FEATURE_PV_SEND_IPI 11 #define KVM_HINTS_REALTIME 0 |