[pve-devel] [PATCH qemu-server 2/6] drive: factor out read-only helper

["Fabian Grünbichler" <f.gruenbichler@proxmox.com>]

we also need it for efidisks.

Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>
---
 PVE/QemuServer.pm       |  8 ++------
 PVE/QemuServer/Drive.pm | 10 ++++++++++
 2 files changed, 12 insertions(+), 6 deletions(-)

diff --git a/PVE/QemuServer.pm b/PVE/QemuServer.pm
index 25ac052..0d49415 100644
--- a/PVE/QemuServer.pm
+++ b/PVE/QemuServer.pm
@@ -48,7 +48,7 @@ use PVE::QemuServer::Helpers qw(min_version config_aware_timeout);
 use PVE::QemuServer::Cloudinit;
 use PVE::QemuServer::CGroup;
 use PVE::QemuServer::CPUConfig qw(print_cpu_device get_cpu_options);
-use PVE::QemuServer::Drive qw(is_valid_drivename drive_is_cloudinit drive_is_cdrom parse_drive print_drive);
+use PVE::QemuServer::Drive qw(is_valid_drivename drive_is_cloudinit drive_is_cdrom drive_is_read_only parse_drive print_drive);
 use PVE::QemuServer::Machine;
 use PVE::QemuServer::Memory;
 use PVE::QemuServer::Monitor qw(mon_cmd);
@@ -3662,11 +3662,7 @@ sub config_to_command {
 	my $drive_cmd = print_drive_commandline_full($storecfg, $vmid, $drive, $pbs_name);
 
 	# extra protection for templates, but SATA and IDE don't support it..
-	my $read_only = PVE::QemuConfig->is_template($conf)
-	    && $drive->{interface} ne 'sata'
-	    && $drive->{interface} ne 'ide';
-
-	$drive_cmd .= ',readonly=on' if $read_only;
+	$drive_cmd .= ',readonly=on' if drive_is_read_only($conf, $drive);
 
 	push @$devices, '-drive',$drive_cmd;
 	push @$devices, '-device', print_drivedevice_full(
diff --git a/PVE/QemuServer/Drive.pm b/PVE/QemuServer/Drive.pm
index 146a4ab..0408e32 100644
--- a/PVE/QemuServer/Drive.pm
+++ b/PVE/QemuServer/Drive.pm
@@ -12,6 +12,7 @@ our @EXPORT_OK = qw(
 is_valid_drivename
 drive_is_cloudinit
 drive_is_cdrom
+drive_is_read_only
 parse_drive
 print_drive
 );
@@ -422,6 +423,15 @@ sub drive_is_cdrom {
     return $drive && $drive->{media} && ($drive->{media} eq 'cdrom');
 }
 
+sub drive_is_read_only {
+    my ($conf, $drive) = @_;
+
+    return 0 if !PVE::QemuConfig->is_template($conf);
+
+    # don't support being marked read-only
+    return $drive->{interface} ne 'sata' && $drive->{interface} ne 'ide';
+}
+
 # ideX = [volume=]volume-id[,media=d][,cyls=c,heads=h,secs=s[,trans=t]]
 #        [,snapshot=on|off][,cache=on|off][,format=f][,backup=yes|no]
 #        [,rerror=ignore|report|stop][,werror=enospc|ignore|report|stop]
-- 
2.30.2