According to [1], there're different ways to specify which firmware is
to be used by a libvirt-driven VM. Namely, there's an automatic
firmware selection, e.g.:
...
<os firmware='(bios|efi)'>
...
and a manual one, e.g.:
...
<os>
<loader readonly='yes'
type='pflash'>/usr/share/OVMF/OVMF_CODE.fd</loader>
...
</os>
...
with the latter being a way to specify UEFI firmware. So let's add this
search path as well when parsing source VM's libvirt xml.
[1] https://libvirt.org/formatdomain.html#bios-bootloader
Signed-off-by: Andrey Drobyshev <andrey.drobys...@virtuozzo.com>
Originally-by: Denis Plotnikov <dplotni...@virtuozzo.com>
---
input/parse_libvirt_xml.ml | 19 +++++++++++++++++--
1 file changed, 17 insertions(+), 2 deletions(-)
diff --git a/input/parse_libvirt_xml.ml b/input/parse_libvirt_xml.ml
index 1e98ce1a..afe3fbc2 100644
--- a/input/parse_libvirt_xml.ml
+++ b/input/parse_libvirt_xml.ml
@@ -446,12 +446,27 @@ let parse_libvirt_xml ?conn xml =
done;
List.rev !nics in
- (* Firmware. *)
+ (* Firmware.
+ * If "/domain/os" node doesn't contain "firmware" attribute (automatic
+ * firmware), we look for the presence of "OVMF_CODE" in "/domain/os/loader"
+ * node (manual firmware).
+ * See https://libvirt.org/formatdomain.html#bios-bootloader
+ *)
let firmware =
match xpath_string "/domain/os/@firmware" with
| Some "bios" -> BIOS
| Some "efi" -> UEFI
- | None | Some _ -> UnknownFirmware in
+ | None | Some _ -> (
+ let loader = xpath_string "/domain/os/loader" in
+ match loader with
+ | None -> UnknownFirmware
+ | _ -> (
+ let re = Str.regexp_string "OVMF_CODE" in
+ let loader = Option.default "" loader in
+ try ignore (Str.search_forward re loader 0); UEFI
+ with Not_found -> UnknownFirmware
+ )
+ ) in
(* Check for hostdev devices. (RHBZ#1472719) *)
let () =
--
2.31.1
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