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KVM: x86/xen: Add KVM_XEN_VCPU_ATTR_TYPE_VCPU_ID

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In order to intercept hypercalls such as VCPUOP_set_singleshot_timer, we
need to be aware of the Xen CPU numbering.

This looks a lot like the Hyper-V handling of vpidx, for obvious reasons.

Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20220303154127.202856-12-dwmw2@infradead.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
David Woodhouse
2022-03-03 15:41:21 +00:00
committed by Paolo Bonzini
parent 0ec6c5c5bb
commit 942c2490c2
5 changed files with 29 additions and 0 deletions
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3
include/uapi/linux/kvm.h
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@@ -1747,6 +1747,7 @@ struct kvm_xen_vcpu_attr {
__u64 time_blocked;
__u64 time_offline;
} runstate;
__u32 vcpu_id;
} u;
};
@@ -1757,6 +1758,8 @@ struct kvm_xen_vcpu_attr {
#define KVM_XEN_VCPU_ATTR_TYPE_RUNSTATE_CURRENT 0x3
#define KVM_XEN_VCPU_ATTR_TYPE_RUNSTATE_DATA 0x4
#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
/* Secure Encrypted Virtualization command */
enum sev_cmd_id {