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qemu/0055-xen-use-a-common-function-for-pv-an.patch

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From fceaaa771845a1fa7379539e77390b833dc9de3b Mon Sep 17 00:00:00 2001
From: Juergen Gross <jgross@suse.com>
Date: Tue, 2 Aug 2016 08:32:32 +0200
Subject: [PATCH] xen: use a common function for pv and hvm guest backend
register calls
Instead of calling xen_be_register() for each supported backend type
for hvm and pv guests in their machine init functions use a common
function in order not to have to add new backends twice.
This at once fixes the error that hvm domains couldn't use the qusb
backend.
Signed-off-by: Juergen Gross <jgross@suse.com>
Acked-by: Anthony PERARD <anthony.perard@citrix.com>
Message-id: 1470119552-16170-1-git-send-email-jgross@suse.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
(cherry picked from commit 0e39bb022b5fa8c11964968885f3263c02ce42b0)
[BR: BSC#991785]
Signed-off-by: Bruce Rogers <brogers@suse.com>
---
hw/xen/xen_backend.c | 10 ++++++++++
hw/xenpv/xen_machine_pv.c | 7 +------
include/hw/xen/xen_backend.h | 1 +
xen-hvm.c | 4 +---
4 files changed, 13 insertions(+), 9 deletions(-)
diff --git a/hw/xen/xen_backend.c b/hw/xen/xen_backend.c
index 8f347da..f4d302d 100644
--- a/hw/xen/xen_backend.c
+++ b/hw/xen/xen_backend.c
@@ -781,6 +781,16 @@ int xen_be_register(const char *type, struct XenDevOps *ops)
return xenstore_scan(type, xen_domid, ops);
}
+void xen_be_register_common(void)
+{
+ xen_be_register("console", &xen_console_ops);
+ xen_be_register("vkbd", &xen_kbdmouse_ops);
+ xen_be_register("qdisk", &xen_blkdev_ops);
+#ifdef CONFIG_USB_LIBUSB
+ xen_be_register("qusb", &xen_usb_ops);
+#endif
+}
+
int xen_be_bind_evtchn(struct XenDevice *xendev)
{
if (xendev->local_port != -1) {
diff --git a/hw/xenpv/xen_machine_pv.c b/hw/xenpv/xen_machine_pv.c
index 48f725c..79aef4e 100644
--- a/hw/xenpv/xen_machine_pv.c
+++ b/hw/xenpv/xen_machine_pv.c
@@ -67,14 +67,9 @@ static void xen_init_pv(MachineState *machine)
break;
}
- xen_be_register("console", &xen_console_ops);
- xen_be_register("vkbd", &xen_kbdmouse_ops);
+ xen_be_register_common();
xen_be_register("vfb", &xen_framebuffer_ops);
- xen_be_register("qdisk", &xen_blkdev_ops);
xen_be_register("qnic", &xen_netdev_ops);
-#ifdef CONFIG_USB_LIBUSB
- xen_be_register("qusb", &xen_usb_ops);
-#endif
/* configure framebuffer */
if (xenfb_enabled) {
diff --git a/include/hw/xen/xen_backend.h b/include/hw/xen/xen_backend.h
index 6e18a46..0e9af28 100644
--- a/include/hw/xen/xen_backend.h
+++ b/include/hw/xen/xen_backend.h
@@ -87,6 +87,7 @@ void xen_be_check_state(struct XenDevice *xendev);
/* xen backend driver bits */
int xen_be_init(void);
+void xen_be_register_common(void);
int xen_be_register(const char *type, struct XenDevOps *ops);
int xen_be_set_state(struct XenDevice *xendev, enum xenbus_state state);
int xen_be_bind_evtchn(struct XenDevice *xendev);
diff --git a/xen-hvm.c b/xen-hvm.c
index 039680a..93c958a 100644
--- a/xen-hvm.c
+++ b/xen-hvm.c
@@ -1305,9 +1305,7 @@ void xen_hvm_init(PCMachineState *pcms, MemoryRegion **ram_memory)
error_report("xen backend core setup failed");
goto err;
}
- xen_be_register("console", &xen_console_ops);
- xen_be_register("vkbd", &xen_kbdmouse_ops);
- xen_be_register("qdisk", &xen_blkdev_ops);
+ xen_be_register_common();
xen_read_physmap(state);
return;