RFC for NBD protocol extension: extended headers
by Eric Blake
In response to this mail, I will be cross-posting a series of patches
to multiple projects as a proof-of-concept implementation and request
for comments on a new NBD protocol extension, called
NBD_OPT_EXTENDED_HEADERS. With this in place, it will be possible for
clients to request 64-bit zero, trim, cache, and block status
operations when supported by the server.
Not yet complete: an implementation of this in nbdkit. I also plan to
tweak libnbd's 'nbdinfo --map' and 'nbdcopy' to take advantage of the
larger block status results. Also, with 64-bit commands, we may want
to also make it easier to let servers advertise an actual maximum size
they are willing to accept for the commands in question (for example,
a server may be happy with a full 64-bit block status, but still want
to limit non-fast zero and cache to a smaller limit to avoid denial of
service).
--
Eric Blake, Principal Software Engineer
Red Hat, Inc. +1-919-301-3266
Virtualization: qemu.org | libvirt.org
3 years
[p2v PATCH 0/2] fix the spinner widget in the Live environment
by Laszlo Ersek
Recently we've made GTK3 the sole GTK option; with that, the spinner
widget is not displayed in the Live environment any more, at least when
said environment is built on Fedora 35. It turns out we've been missing
an obscure dependency.
Laszlo
Laszlo Ersek (2):
Makefile.am: rectify target dependencies on package dependency files
dependencies.m4: add librsvg2
Makefile.am | 4 ++--
dependencies.m4 | 5 +++++
2 files changed, 7 insertions(+), 2 deletions(-)
3 years
[v2v PATCH] convert_linux: include the BOCHS DRM driver in the initial ram disk
by Laszlo Ersek
UEFI RHEL-7 guests cannot be successfully converted from VMWare without
including the BOCHS DRM driver -- Plymouth ("rhgb") crashes during early
boot in the converted domain.
Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=2131123
Signed-off-by: Laszlo Ersek <lersek(a)redhat.com>
---
convert/convert_linux.ml | 12 +++++++++---
1 file changed, 9 insertions(+), 3 deletions(-)
diff --git a/convert/convert_linux.ml b/convert/convert_linux.ml
index b8e9ad15e22d..5bfdac5aa6d9 100644
--- a/convert/convert_linux.ml
+++ b/convert/convert_linux.ml
@@ -731,8 +731,13 @@ let convert (g : G.guestfs) source inspect keep_serial_console _ =
match kernel.ki_initrd with
| None -> ()
| Some initrd ->
- (* Enable the basic virtio modules in the kernel. *)
- (* Also forcibly include the "xts" module; see RHBZ#1658126. *)
+ (* Enable the basic virtio modules in the kernel.
+ *
+ * Also forcibly include the "xts" module; see RHBZ#1658126.
+ *
+ * Include the BOCHS DRM paravirt video driver; see RHBZ#2131123. This
+ * driver is known under two names -- "bochs-drm" and "bochs".
+ *)
let modules =
let modules =
(* The order of modules here is deliberately the same as the
@@ -743,7 +748,8 @@ let convert (g : G.guestfs) source inspect keep_serial_console _ =
*)
List.filter (fun m -> List.mem m kernel.ki_modules)
[ "virtio"; "virtio_ring"; "virtio_blk";
- "virtio_scsi"; "virtio_net"; "virtio_pci"; "xts" ] in
+ "virtio_scsi"; "virtio_net"; "virtio_pci"; "xts";
+ "bochs-drm"; "bochs" ] in
if modules <> [] then modules
else
(* Fallback copied from old virt-v2v. XXX Why not "ide"? *)
3 years
