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[PATCH v1 08/12] hw/xen/xen-hvm-common: skip ioreq creation on ioreq registration failure
- To: <qemu-devel@xxxxxxxxxx>
- From: Vikram Garhwal <vikram.garhwal@xxxxxxx>
- Date: Fri, 14 Oct 2022 22:07:46 -0700
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- Cc: <vikram.garhwal@xxxxxxx>, <stefano.stabellini@xxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, Anthony Perard <anthony.perard@xxxxxxxxxx>, "Paul Durrant" <paul@xxxxxxx>, "open list:X86 Xen CPUs" <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- Delivery-date: Sat, 15 Oct 2022 05:08:48 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
From: Stefano Stabellini <stefano.stabellini@xxxxxxx>
On ARM it is possible to have a functioning xenpv machine with only the
PV backends and no IOREQ server. If the IOREQ server creation fails continue
to the PV backends initialization.
Signed-off-by: Stefano Stabellini <stefano.stabellini@xxxxxxx>
---
hw/xen/xen-hvm-common.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/hw/xen/xen-hvm-common.c b/hw/xen/xen-hvm-common.c
index f848f9e625..7bccf595fc 100644
--- a/hw/xen/xen-hvm-common.c
+++ b/hw/xen/xen-hvm-common.c
@@ -777,7 +777,11 @@ void xen_register_ioreq(XenIOState *state, unsigned int
max_cpus,
goto err;
}
- xen_create_ioreq_server(xen_domid, &state->ioservid);
+ rc = xen_create_ioreq_server(xen_domid, &state->ioservid);
+ if (rc) {
+ DPRINTF("xen: failed to create ioreq server\n");
+ goto no_ioreq;
+ }
state->exit.notify = xen_exit_notifier;
qemu_add_exit_notifier(&state->exit);
@@ -842,6 +846,7 @@ void xen_register_ioreq(XenIOState *state, unsigned int
max_cpus,
QLIST_INIT(&state->dev_list);
device_listener_register(&state->device_listener);
+no_ioreq:
xen_bus_init();
/* Initialize backend core & drivers */
--
2.17.0
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