From 4dcce9ee3ce013a215a77f639f827a34efb8cb77 Mon Sep 17 00:00:00 2001
From: Thomas Lamprecht <t.lamprecht@proxmox.com>
Date: Mon, 11 Sep 2017 08:40:29 +0200
Subject: [PATCH] ovmf: deprecate old legay ovmf image and refactor

this was only kept for PVE 4.X where the switch to the newer OVMF
image with actual working persisten EFIVARS was made.

We do not ship this old image in PVE 5.0 anymore so remove this
legacy code as it can never trigger anyhow.

Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
---
 PVE/QemuServer.pm | 48 +++++++++++++----------------------------------
 1 file changed, 13 insertions(+), 35 deletions(-)

diff --git a/PVE/QemuServer.pm b/PVE/QemuServer.pm
index e0c0c509..2d097265 100644
--- a/PVE/QemuServer.pm
+++ b/PVE/QemuServer.pm
@@ -39,7 +39,6 @@ use URI::Escape;
 
 my $OVMF_CODE = '/usr/share/kvm/OVMF_CODE-pure-efi.fd';
 my $OVMF_VARS = '/usr/share/kvm/OVMF_VARS-pure-efi.fd';
-my $OVMF_IMG = '/usr/share/kvm/OVMF-pure-efi.fd';
 
 my $qemu_snap_storage = {rbd => 1, sheepdog => 1};
 
@@ -2878,44 +2877,25 @@ sub config_to_command {
     }
 
     if ($conf->{bios} && $conf->{bios} eq 'ovmf') {
-	my $ovmfbase;
+	die "uefi base image not found\n" if ! -f $OVMF_CODE;
 
-	# prefer the OVMF_CODE variant
-	if (-f $OVMF_CODE) {
-	    $ovmfbase = $OVMF_CODE;
-	} elsif (-f $OVMF_IMG) {
-	    $ovmfbase = $OVMF_IMG;
-	}
-
-	die "no uefi base img found\n" if !$ovmfbase;
-	push @$cmd, '-drive', "if=pflash,unit=0,format=raw,readonly,file=$ovmfbase";
-
-	if (defined($conf->{efidisk0}) && ($ovmfbase eq $OVMF_CODE)) {
-	    my $d = PVE::JSONSchema::parse_property_string($efidisk_fmt, $conf->{efidisk0});
-	    my $format = $d->{format} // 'raw';
-	    my $path;
+	my $path;
+	if (my $efidisk = $conf->{efidisk0}) {
+	    my $d = PVE::JSONSchema::parse_property_string($efidisk_fmt, $efidisk);
 	    my ($storeid, $volname) = PVE::Storage::parse_volume_id($d->{file}, 1);
 	    if ($storeid) {
 		$path = PVE::Storage::path($storecfg, $d->{file});
-		my $scfg = PVE::Storage::storage_config($storecfg, $storeid);
-		$format = qemu_img_format($scfg, $volname);
 	    } else {
 		$path = $d->{file};
-		$format = "raw";
 	    }
-	    push @$cmd, '-drive', "if=pflash,unit=1,id=drive-efidisk0,format=$format,file=$path";
-	} elsif ($ovmfbase eq $OVMF_CODE) {
-	    warn "using uefi without permanent efivars disk\n";
-	    my $ovmfvar_dst = "/tmp/$vmid-ovmf.fd";
-	    PVE::Tools::file_copy($OVMF_VARS, $ovmfvar_dst, 256*1024);
-	    push @$cmd, '-drive', "if=pflash,unit=1,format=raw,file=$ovmfvar_dst";
 	} else {
-	    # if the base img is not OVMF_CODE, we do not have to bother
-	    # to create/use a vars image, since it will not be used anyway
-	    # this can only happen if someone manually deletes the OVMF_CODE image
-	    # or has an old pve-qemu-kvm version installed.
-	    # both should not happen, but we ignore it here
+	    warn "no efidisk configured! Using temporary efivars disk.\n";
+	    $path = "/tmp/$vmid-ovmf.fd";
+	    PVE::Tools::file_copy($OVMF_VARS, $path, -s $OVMF_VARS);
 	}
+
+	push @$cmd, '-drive', "if=pflash,unit=0,format=raw,readonly,file=$OVMF_CODE";
+	push @$cmd, '-drive', "if=pflash,unit=1,id=drive-efidisk0,file=$path";
     }
 
 
@@ -3243,6 +3223,9 @@ sub config_to_command {
 	    push @$vollist, $drive->{file};
 	}
 
+	# ignore efidisk here, already added in bios/fw handling code above
+	return if $drive->{interface} eq 'efidisk';
+
 	$use_virtio = 1 if $ds =~ m/^virtio/;
 
 	if (drive_is_cdrom ($drive)) {
@@ -3292,11 +3275,6 @@ sub config_to_command {
            $ahcicontroller->{$controller}=1;
         }
 
-	if ($drive->{interface} eq 'efidisk') {
-	    # this will be added somewhere else
-	    return;
-	}
-
 	my $drive_cmd = print_drive_full($storecfg, $vmid, $drive);
 	push @$devices, '-drive',$drive_cmd;
 	push @$devices, '-device', print_drivedevice_full($storecfg, $conf, $vmid, $drive, $bridges);