[PATCH v2 qemu-server 09/16] ovmf: use a custom firmware image if configured

[Christian Ludwig <christian_ludwig@genua.de>]

Replace the system OVMF code image with the configured one, for the
pflash, blockdev and '-bios' variants. Die if the volume does not exist.

Signed-off-by: Christian Ludwig <christian_ludwig@genua.de>
---
 src/PVE/QemuServer/OVMF.pm | 20 +++++++++++++++++++-
 1 file changed, 19 insertions(+), 1 deletion(-)

diff --git a/src/PVE/QemuServer/OVMF.pm b/src/PVE/QemuServer/OVMF.pm
index 67665c7c..fe301353 100644
--- a/src/PVE/QemuServer/OVMF.pm
+++ b/src/PVE/QemuServer/OVMF.pm
@@ -123,6 +123,9 @@ my sub print_ovmf_drive_commandlines {
         if $cvm_type && $cvm_type eq 'tdx';
 
     my ($ovmf_code, $ovmf_vars) = get_ovmf_files($arch, $d, $q35, $cvm_type);
+    if ($conf->{'efi-firmware'}) {
+        $ovmf_code = PVE::Storage::path($storecfg, $conf->{'efi-firmware'});
+    }
     my $ovmf_vars_size = file_get_size($ovmf_vars);
 
     my $var_drive_str = "if=pflash,unit=1,id=drive-efidisk0";
@@ -219,6 +222,9 @@ my sub generate_ovmf_blockdev {
         if $cvm_type && $cvm_type eq 'snp';
 
     my ($ovmf_code, $ovmf_vars) = get_ovmf_files($arch, $drive, $q35, $cvm_type);
+    if ($conf->{'efi-firmware'}) {
+        $ovmf_code = PVE::Storage::path($storecfg, $conf->{'efi-firmware'});
+    }
 
     my $ovmf_code_blockdev = {
         driver => 'raw',
@@ -268,6 +274,12 @@ sub print_ovmf_commandline {
 
     my $cvm_type = $hw_info->{'cvm-type'};
 
+    if ($conf->{'efi-firmware'}) {
+        my $fw_path = PVE::Storage::path($storecfg, $conf->{'efi-firmware'});
+        die "efi-firmware volume '$conf->{'efi-firmware'}' not found at '$fw_path'\n"
+            if !file_exists($fw_path);
+    }
+
     my $cmd = [];
     my $machine_flags = [];
 
@@ -277,7 +289,13 @@ sub print_ovmf_commandline {
                 "EFI disks are not supported with Confidential Virtual Machines and will be ignored"
             );
         }
-        push $cmd->@*, '-bios', get_ovmf_files($hw_info->{arch}, undef, undef, $cvm_type);
+        my $bios_path;
+        if ($conf->{'efi-firmware'}) {
+            $bios_path = PVE::Storage::path($storecfg, $conf->{'efi-firmware'});
+        } else {
+            ($bios_path) = get_ovmf_files($hw_info->{arch}, undef, undef, $cvm_type);
+        }
+        push $cmd->@*, '-bios', $bios_path;
     } else {
         if ($version_guard->(10, 0, 0)) { # for the switch to -blockdev
             my ($code_blockdev, $vars_blockdev, $throttle_group) =
-- 
2.34.1