diff options
| author |   Joao Martins <joao.m.martins@oracle.com> | 2022-03-03 15:41:22 +0000 |
|---|---|---|
| committer |   Paolo Bonzini <pbonzini@redhat.com> | 2022-04-02 05:41:16 -0400 |
| commit | 536395260582be7443b0b35b0bbb89ffe3947f62 (patch) | |
| tree | a279baa81d433c68a638fbdceae34120b4133258 /include/uapi/linux | |
| parent | KVM: x86/xen: Add KVM_XEN_VCPU_ATTR_TYPE_VCPU_ID (diff) | |
| download | linux-dev-536395260582be7443b0b35b0bbb89ffe3947f62.tar.xz linux-dev-536395260582be7443b0b35b0bbb89ffe3947f62.zip | |
KVM: x86/xen: handle PV timers oneshot mode
If the guest has offloaded the timer virq, handle the following
hypercalls for programming the timer:
VCPUOP_set_singleshot_timer
VCPUOP_stop_singleshot_timer
set_timer_op(timestamp_ns)
The event channel corresponding to the timer virq is then used to inject
events once timer deadlines are met. For now we back the PV timer with
hrtimer.
[ dwmw2: Add save/restore, 32-bit compat mode, immediate delivery,
don't check timer in kvm_vcpu_has_event() ]
Signed-off-by: Joao Martins <joao.m.martins@oracle.com>
Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20220303154127.202856-13-dwmw2@infradead.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'include/uapi/linux')
| -rw-r--r-- | include/uapi/linux/kvm.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/uapi/linux/kvm.h b/include/uapi/linux/kvm.h index 4b65e9f0a4d9..cb223e425223 100644 --- a/include/uapi/linux/kvm.h +++ b/include/uapi/linux/kvm.h @@ -1748,6 +1748,11 @@ struct kvm_xen_vcpu_attr { __u64 time_offline; } runstate; __u32 vcpu_id; + struct { + __u32 port; + __u32 priority; + __u64 expires_ns; + } timer; } u; }; @@ -1760,6 +1765,7 @@ struct kvm_xen_vcpu_attr { #define KVM_XEN_VCPU_ATTR_TYPE_RUNSTATE_ADJUST 0x5 /* Available with KVM_CAP_XEN_HVM / KVM_XEN_HVM_CONFIG_EVTCHN_SEND */ #define KVM_XEN_VCPU_ATTR_TYPE_VCPU_ID 0x6 +#define KVM_XEN_VCPU_ATTR_TYPE_TIMER 0x7 /* Secure Encrypted Virtualization command */ enum sev_cmd_id { |