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| author | David Woodhouse <dwmw@amazon.co.uk> | 2023-10-24 22:22:47 +0100 |
|---|---|---|
| committer | David Woodhouse <dwmw@amazon.co.uk> | 2023-11-06 10:03:45 +0000 |
| commit | debc995e883b05c2fd02fb797a61ab1328e5bae2 (patch) | |
| tree | 926feeb5f4ff2c2d60913a1ac6a8e5a7413be6d5 /hw | |
| parent | 4a5780f52095f1daf23618dc6198a2a1665ea505 (diff) | |
| download | qemu-debc995e883b05c2fd02fb797a61ab1328e5bae2.zip qemu-debc995e883b05c2fd02fb797a61ab1328e5bae2.tar.gz qemu-debc995e883b05c2fd02fb797a61ab1328e5bae2.tar.bz2 | |
hw/xen: take iothread mutex in xen_evtchn_reset_op()
The xen_evtchn_soft_reset() function requires the iothread mutex, but is
also called for the EVTCHNOP_reset hypercall. Ensure the mutex is taken
in that case.
Cc: qemu-stable@nongnu.org
Fixes: a15b10978fe6 ("hw/xen: Implement EVTCHNOP_reset")
Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Reviewed-by: Paul Durrant <paul@xen.org>
Diffstat (limited to 'hw')
| -rw-r--r-- | hw/i386/kvm/xen_evtchn.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/hw/i386/kvm/xen_evtchn.c b/hw/i386/kvm/xen_evtchn.c index 3d6f4b4..b2b4be9 100644 --- a/hw/i386/kvm/xen_evtchn.c +++ b/hw/i386/kvm/xen_evtchn.c @@ -1135,6 +1135,7 @@ int xen_evtchn_reset_op(struct evtchn_reset *reset) return -ESRCH; } + QEMU_IOTHREAD_LOCK_GUARD(); return xen_evtchn_soft_reset(); } |