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hw/xen: Implement EVTCHNOP_alloc_unbound

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Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Reviewed-by: Paul Durrant <paul@xen.org>
This commit is contained in:
David Woodhouse 2022-12-14 16:39:48 +00:00
parent cf7679abdd
commit e1db61b87b
3 changed files with 49 additions and 0 deletions
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15
target/i386/kvm/xen-emu.c
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@ -921,6 +921,21 @@ static bool kvm_xen_hcall_evtchn_op(struct kvm_xen_exit *exit, X86CPU *cpu,
err = xen_evtchn_send_op(&send);
break;
}
case EVTCHNOP_alloc_unbound: {
struct evtchn_alloc_unbound alloc;
qemu_build_assert(sizeof(alloc) == 8);
if (kvm_copy_from_gva(cs, arg, &alloc, sizeof(alloc))) {
err = -EFAULT;
break;
}
err = xen_evtchn_alloc_unbound_op(&alloc);
if (!err && kvm_copy_to_gva(cs, arg, &alloc, sizeof(alloc))) {
err = -EFAULT;
}
break;
}
default:
return false;
}