diff options
| author | Haozhong Zhang <haozhong.zhang@intel.com> | 2015-10-20 15:39:01 +0800 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2015-11-10 12:06:14 +0100 |
| commit | bc9b961b357ea8129d75613b7af4fdf57ced9b9f (patch) | |
| tree | 48a66aa2209463b4c59bb47510400780ca83902c /arch/x86/include/asm | |
| parent | 893590c73426585dfd9f33358b19f18d9395fb2f (diff) | |
| download | op-kernel-dev-bc9b961b357ea8129d75613b7af4fdf57ced9b9f.zip op-kernel-dev-bc9b961b357ea8129d75613b7af4fdf57ced9b9f.tar.gz | |
KVM: x86: Collect information for setting TSC scaling ratio
The number of bits of the fractional part of the 64-bit TSC scaling
ratio in VMX and SVM is different. This patch makes the architecture
code to collect the number of fractional bits and other related
information into variables that can be accessed in the common code.
Signed-off-by: Haozhong Zhang <haozhong.zhang@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/include/asm')
| -rw-r--r-- | arch/x86/include/asm/kvm_host.h | 4 |
1 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 b0322d8..5333767 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -988,6 +988,10 @@ u64 vcpu_tsc_khz(struct kvm_vcpu *vcpu); extern bool kvm_has_tsc_control; /* maximum supported tsc_khz for guests */ extern u32 kvm_max_guest_tsc_khz; +/* number of bits of the fractional part of the TSC scaling ratio */ +extern u8 kvm_tsc_scaling_ratio_frac_bits; +/* maximum allowed value of TSC scaling ratio */ +extern u64 kvm_max_tsc_scaling_ratio; enum emulation_result { EMULATE_DONE, /* no further processing */ |
