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| author |   Michael S. Tsirkin <mst@redhat.com> | 2018-05-17 17:54:24 +0300 |
|---|---|---|
| committer |   Paolo Bonzini <pbonzini@redhat.com> | 2018-05-17 19:12:13 +0200 |
| commit | 633711e82878dc29083fc5d2605166755e25b57a (patch) | |
| tree | 7abc99cfd5b05e144b41d7b56a4b929cf7a1e19d /arch/x86/include/uapi/asm/kvm_para.h | |
| parent | KVM: arm/arm64: VGIC/ITS save/restore: protect kvm_read_guest() calls (diff) | |
| download | linux-dev-633711e82878dc29083fc5d2605166755e25b57a.tar.xz linux-dev-633711e82878dc29083fc5d2605166755e25b57a.zip | |
kvm: rename KVM_HINTS_DEDICATED to KVM_HINTS_REALTIME
KVM_HINTS_DEDICATED seems to be somewhat confusing:
Guest doesn't really care whether it's the only task running on a host
CPU as long as it's not preempted.
And there are more reasons for Guest to be preempted than host CPU
sharing, for example, with memory overcommit it can get preempted on a
memory access, post copy migration can cause preemption, etc.
Let's call it KVM_HINTS_REALTIME which seems to better
match what guests expect.
Also, the flag most be set on all vCPUs - current guests assume this.
Note so in the documentation.
Signed-off-by: Michael S. Tsirkin <mst@redhat.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 | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/include/uapi/asm/kvm_para.h b/arch/x86/include/uapi/asm/kvm_para.h index 4c851ebb3ceb..0ede697c3961 100644 --- a/arch/x86/include/uapi/asm/kvm_para.h +++ b/arch/x86/include/uapi/asm/kvm_para.h @@ -29,7 +29,7 @@ #define KVM_FEATURE_PV_TLB_FLUSH 9 #define KVM_FEATURE_ASYNC_PF_VMEXIT 10 -#define KVM_HINTS_DEDICATED 0 +#define KVM_HINTS_REALTIME 0 /* The last 8 bits are used to indicate how to interpret the flags field * in pvclock structure. If no bits are set, all flags are ignored. |