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| author | Joerg Roedel <joerg.roedel@amd.com> | 2011-03-25 09:44:51 +0100 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2011-05-11 07:57:06 -0400 |
| commit | 92a1f12d2598f429bd8639e21d89305e787115c5 (patch) | |
| tree | 48a6b7d6c50b5583b5163185dd097db100a471c6 /arch/x86/include/asm/kvm_host.h | |
| parent | 857e40999e35906baa367a79137019912cfb5434 (diff) | |
| download | blackbird-op-linux-92a1f12d2598f429bd8639e21d89305e787115c5.tar.gz blackbird-op-linux-92a1f12d2598f429bd8639e21d89305e787115c5.zip | |
KVM: X86: Implement userspace interface to set virtual_tsc_khz
This patch implements two new vm-ioctls to get and set the
virtual_tsc_khz if the machine supports tsc-scaling. Setting
the tsc-frequency is only possible before userspace creates
any vcpu.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'arch/x86/include/asm/kvm_host.h')
| -rw-r--r-- | arch/x86/include/asm/kvm_host.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h index da0a8ce3a139..bd57639fd5db 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -655,6 +655,13 @@ u8 kvm_get_guest_memory_type(struct kvm_vcpu *vcpu, gfn_t gfn); extern bool tdp_enabled; +/* control of guest tsc rate supported? */ +extern bool kvm_has_tsc_control; +/* minimum supported tsc_khz for guests */ +extern u32 kvm_min_guest_tsc_khz; +/* maximum supported tsc_khz for guests */ +extern u32 kvm_max_guest_tsc_khz; + enum emulation_result { EMULATE_DONE, /* no further processing */ EMULATE_DO_MMIO, /* kvm_run filled with mmio request */ |
