diff options
| author | Marcelo Tosatti <mtosatti@redhat.com> | 2017-01-24 15:09:39 -0200 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2017-02-07 18:16:45 +0100 |
| commit | 55dd00a73a518281bc846dc5de1a718349431eb2 (patch) | |
| tree | 13c912f125578744049bf28902e26e5e30b57b66 /include | |
| parent | 6342c50ad12e8ce0736e722184a7dbdea4a3477f (diff) | |
KVM: x86: add KVM_HC_CLOCK_PAIRING hypercall
Add a hypercall to retrieve the host realtime clock and the TSC value
used to calculate that clock read.
Used to implement clock synchronization between host and guest.
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/uapi/linux/kvm_para.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/uapi/linux/kvm_para.h b/include/uapi/linux/kvm_para.h index bf6cd7d5cac2..fed506aeff62 100644 --- a/include/uapi/linux/kvm_para.h +++ b/include/uapi/linux/kvm_para.h @@ -14,6 +14,7 @@ #define KVM_EFAULT EFAULT #define KVM_E2BIG E2BIG #define KVM_EPERM EPERM +#define KVM_EOPNOTSUPP 95 #define KVM_HC_VAPIC_POLL_IRQ 1 #define KVM_HC_MMU_OP 2 @@ -23,6 +24,7 @@ #define KVM_HC_MIPS_GET_CLOCK_FREQ 6 #define KVM_HC_MIPS_EXIT_VM 7 #define KVM_HC_MIPS_CONSOLE_OUTPUT 8 +#define KVM_HC_CLOCK_PAIRING 9 /* * hypercalls use architecture specific |