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| author | Zachary Amsden <zamsden@redhat.com> | 2010-08-20 12:07:17 +0400 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2010-10-24 12:51:22 +0400 |
| commit | 99e3e30aee1a326a98bf3a5f47b8622219c685f3 (patch) | |
| tree | 1b67fc70af33988080784d32725f72b5ce7c07d1 /arch/x86/include | |
| parent | f4e1b3c8bd2a044cd0ccf80595bfd088a49fe60b (diff) | |
| download | linux-99e3e30aee1a326a98bf3a5f47b8622219c685f3.tar.xz | |
KVM: x86: Move TSC offset writes to common code
Also, ensure that the storing of the offset and the reading of the TSC
are never preempted by taking a spinlock. While the lock is overkill
now, it is useful later in this patch series.
Signed-off-by: Zachary Amsden <zamsden@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Diffstat (limited to 'arch/x86/include')
| -rw-r--r-- | arch/x86/include/asm/kvm_host.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h index 6056a23dc4cf..a215153f1ff6 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -395,6 +395,7 @@ struct kvm_arch { unsigned long irq_sources_bitmap; s64 kvmclock_offset; + spinlock_t tsc_write_lock; struct kvm_xen_hvm_config xen_hvm_config; @@ -521,6 +522,8 @@ struct kvm_x86_ops { bool (*has_wbinvd_exit)(void); + void (*write_tsc_offset)(struct kvm_vcpu *vcpu, u64 offset); + const struct trace_print_flags *exit_reasons_str; }; |