forked from pool/libguestfs
Olaf Hering
edd8433ad0
OBS-URL: https://build.opensuse.org/package/show/Virtualization/libguestfs?expand=0&rev=64
56 lines
1.7 KiB
Diff
56 lines
1.7 KiB
Diff
From e823035a30944ba71b9d8e60b30a650425dc9711 Mon Sep 17 00:00:00 2001
|
|
From: Olaf Hering <olaf@aepfle.de>
|
|
Date: Mon, 3 Sep 2012 19:50:44 +0200
|
|
Subject: [PATCH] force virtio_blk in old guest kernel
|
|
|
|
Signed-off-by: Olaf Hering <olaf@aepfle.de>
|
|
---
|
|
src/launch-appliance.c | 24 ++++++++++++++++++++++++
|
|
1 Datei geändert, 24 Zeilen hinzugefügt(+)
|
|
|
|
diff --git a/src/launch-appliance.c b/src/launch-appliance.c
|
|
index 328cd19..796c268 100644
|
|
--- a/src/launch-appliance.c
|
|
+++ b/src/launch-appliance.c
|
|
@@ -881,6 +881,28 @@ is_openable (guestfs_h *g, const char *path, int flags)
|
|
return 1;
|
|
}
|
|
|
|
+/*
|
|
+ * Currently virtio_scsi is forced if qemu in the host supports this
|
|
+ * feature. This test does however not take the capabilities of the started
|
|
+ * guest into account. As a result no disks will be found if the guest
|
|
+ * kernel is older than 3.4.
|
|
+ */
|
|
+static void qemu_force_virtio_blk(guestfs_h *g)
|
|
+{
|
|
+#ifdef GUESTFS_QEMU_NO_VIRTIO_BLK
|
|
+ static const char env_string[] = "GUESTFS_QEMU_NO_VIRTIO_BLK";
|
|
+ char *p = getenv(env_string);
|
|
+ if (p) {
|
|
+ if (g->verbose)
|
|
+ guestfs___print_timestamped_message (g, "SuSE: %s in environment, preserving virtio-scsi setting.", env_string);
|
|
+ } else {
|
|
+ if (g->verbose)
|
|
+ guestfs___print_timestamped_message (g, "SuSE: %s not in environment, preventing virtio-scsi usage in old guest kernel.", env_string);
|
|
+ g->app.virtio_scsi = 2;
|
|
+ }
|
|
+#endif
|
|
+}
|
|
+
|
|
/* Returns 1 = use virtio-scsi, or 0 = use virtio-blk. */
|
|
static int
|
|
qemu_supports_virtio_scsi (guestfs_h *g)
|
|
@@ -903,6 +925,8 @@ qemu_supports_virtio_scsi (guestfs_h *g)
|
|
g->app.virtio_scsi = 3;
|
|
}
|
|
|
|
+ qemu_force_virtio_blk(g);
|
|
+
|
|
return g->app.virtio_scsi == 1;
|
|
}
|
|
|
|
--
|
|
1.7.11.5
|
|
|