diff options
| author | Vadim Rozenfeld <vrozenfe@redhat.com> | 2014-01-16 20:18:37 +1100 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2014-01-17 10:22:08 +0100 |
| commit | e984097b553ed2d6551c805223e4057421370f00 (patch) | |
| tree | 8bc58542fbd9680ee70ea83174ea092aa1baf8ad /arch/x86/include/asm | |
| parent | aab6d7ce37cf20753a336dc74473cf8a8aefa7c0 (diff) | |
add support for Hyper-V reference time counter
Signed-off: Peter Lieven <pl@kamp.de>
Signed-off: Gleb Natapov
Signed-off: Vadim Rozenfeld <vrozenfe@redhat.com>
After some consideration I decided to submit only Hyper-V reference
counters support this time. I will submit iTSC support as a separate
patch as soon as it is ready.
v1 -> v2
1. mark TSC page dirty as suggested by
Eric Northup <digitaleric@google.com> and Gleb
2. disable local irq when calling get_kernel_ns,
as it was done by Peter Lieven <pl@amp.de>
3. move check for TSC page enable from second patch
to this one.
v3 -> v4
Get rid of ref counter offset.
v4 -> v5
replace __copy_to_user with kvm_write_guest
when updateing iTSC page.
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 | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h index ae5d7830855..33fef0738a2 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -605,6 +605,7 @@ struct kvm_arch { /* fields used by HYPER-V emulation */ u64 hv_guest_os_id; u64 hv_hypercall; + u64 hv_tsc_page; #ifdef CONFIG_KVM_MMU_AUDIT int audit_point; |