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hw/xen: Implement emulated PIRQ hypercall support

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This wires up the basic infrastructure but the actual interrupts aren't
there yet, so don't advertise it to the guest.

Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Reviewed-by: Paul Durrant <paul@xen.org>
This commit is contained in:
David Woodhouse 2023-01-13 19:51:32 +00:00
parent 799c23548f
commit aa98ee38a5
6 changed files with 324 additions and 5 deletions
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15
target/i386/kvm/xen-emu.c
View file

@ -1267,6 +1267,21 @@ static bool kvm_xen_hcall_evtchn_op(struct kvm_xen_exit *exit, X86CPU *cpu,
}
break;
}
case EVTCHNOP_bind_pirq: {
struct evtchn_bind_pirq pirq;
qemu_build_assert(sizeof(pirq) == 12);
if (kvm_copy_from_gva(cs, arg, &pirq, sizeof(pirq))) {
err = -EFAULT;
break;
}
err = xen_evtchn_bind_pirq_op(&pirq);
if (!err && kvm_copy_to_gva(cs, arg, &pirq, sizeof(pirq))) {
err = -EFAULT;
}
break;
}
case EVTCHNOP_bind_ipi: {
struct evtchn_bind_ipi ipi;