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| author | Yunhong Jiang <yunhong.jiang@intel.com> | 2016-06-13 23:19:59 +0200 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2016-06-16 10:07:50 +0200 |
| commit | 64672c95ea4c2f7096e519e826076867e8ef0938 (patch) | |
| tree | 910b3ca0406c6e4d5ac70f943e8d245427b2907a /arch/x86/include/asm/kvm_host.h | |
| parent | kvm: vmx: rename vmx_pre/post_block to pi_pre/post_block (diff) | |
| download | linux-64672c95ea4c2f7096e519e826076867e8ef0938.tar.xz linux-64672c95ea4c2f7096e519e826076867e8ef0938.zip | |
kvm: vmx: hook preemption timer support
Hook the VMX preemption timer to the "hv timer" functionality added
by the previous patch. This includes: checking if the feature is
supported, if the feature is broken on the CPU, the hooks to
setup/clean the VMX preemption timer, arming the timer on vmentry
and handling the vmexit.
A module parameter states if the VMX preemption timer should be
utilized.
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
[Move hv_deadline_tsc to struct vcpu_vmx, use -1 as the "unset" value.
Put all VMX bits here. Enable it by default #yolo. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/include/asm/kvm_host.h')
| -rw-r--r-- | arch/x86/include/asm/kvm_host.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h index e055f3787dc9..360c5171ea1a 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -1079,6 +1079,8 @@ extern u32 kvm_max_guest_tsc_khz; extern u8 kvm_tsc_scaling_ratio_frac_bits; /* maximum allowed value of TSC scaling ratio */ extern u64 kvm_max_tsc_scaling_ratio; +/* 1ull << kvm_tsc_scaling_ratio_frac_bits */ +extern u64 kvm_default_tsc_scaling_ratio; enum emulation_result { EMULATE_DONE, /* no further processing */ |