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| author | Marcelo Tosatti | 2019-06-04 00:52:44 +0200 |
|---|---|---|
| committer | Paolo Bonzini | 2019-06-18 11:43:46 +0200 |
| commit | 2d5ba19bdfef4dd06add144eb04287ee98409f75 (patch) | |
| tree | 740184128ac3de9a538ef62a9d525c48ddf3712a /arch/x86/include | |
| parent | kvm: vmx: segment limit check: use access length (diff) | |
| download | kernel-qcow2-linux-2d5ba19bdfef4dd06add144eb04287ee98409f75.tar.gz kernel-qcow2-linux-2d5ba19bdfef4dd06add144eb04287ee98409f75.tar.xz kernel-qcow2-linux-2d5ba19bdfef4dd06add144eb04287ee98409f75.zip | |
kvm: x86: add host poll control msrs
Add an MSRs which allows the guest to disable
host polling (specifically the cpuidle-haltpoll,
when performing polling in the guest, disables
host side polling).
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/include')
| -rw-r--r-- | arch/x86/include/asm/kvm_host.h | 2 | ||||
| -rw-r--r-- | arch/x86/include/uapi/asm/kvm_para.h | 2 |
2 files changed, 4 insertions, 0 deletions
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h index aeadbc770eb2..a86026969b19 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -755,6 +755,8 @@ struct kvm_vcpu_arch { struct gfn_to_hva_cache data; } pv_eoi; + u64 msr_kvm_poll_control; + /* * Indicate whether the access faults on its page table in guest * which is set when fix page fault and used to detect unhandeable diff --git a/arch/x86/include/uapi/asm/kvm_para.h b/arch/x86/include/uapi/asm/kvm_para.h index 19980ec1a316..21d5f0240595 100644 --- a/arch/x86/include/uapi/asm/kvm_para.h +++ b/arch/x86/include/uapi/asm/kvm_para.h @@ -29,6 +29,7 @@ #define KVM_FEATURE_PV_TLB_FLUSH 9 #define KVM_FEATURE_ASYNC_PF_VMEXIT 10 #define KVM_FEATURE_PV_SEND_IPI 11 +#define KVM_FEATURE_POLL_CONTROL 12 #define KVM_HINTS_REALTIME 0 @@ -47,6 +48,7 @@ #define MSR_KVM_ASYNC_PF_EN 0x4b564d02 #define MSR_KVM_STEAL_TIME 0x4b564d03 #define MSR_KVM_PV_EOI_EN 0x4b564d04 +#define MSR_KVM_POLL_CONTROL 0x4b564d05 struct kvm_steal_time { __u64 steal; |