--- /dev/null
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Fabian Ebner <f.ebner@proxmox.com>
+Date: Tue, 17 Nov 2020 10:51:05 +0100
+Subject: [PATCH] PVE: fall back to open-iscsi initiatorname
+
+When no explicit option is given, try reading the initiator name from
+/etc/iscsi/initiatorname.iscsi and only use the generic fallback, i.e.
+iqn.2008-11.org.linux-kvmXXX, as a third alternative.
+
+This avoids the need to add an explicit option for vma and to explicitly set it
+for each call to qemu that deals with iSCSI disks, while still allowing to set
+the option if a different name is needed.
+
+According to RFC 3720, an initiator name is at most 223 bytes long, so the
+4 KiB buffer is big enough, even if many whitespaces are used.
+
+Signed-off-by: Fabian Ebner <f.ebner@proxmox.com>
+---
+ block/iscsi.c | 30 ++++++++++++++++++++++++++++++
+ 1 file changed, 30 insertions(+)
+
+diff --git a/block/iscsi.c b/block/iscsi.c
+index 4d2a416ce7..c345d30812 100644
+--- a/block/iscsi.c
++++ b/block/iscsi.c
+@@ -1372,12 +1372,42 @@ static char *get_initiator_name(QemuOpts *opts)
+ const char *name;
+ char *iscsi_name;
+ UuidInfo *uuid_info;
++ FILE *name_fh;
+
+ name = qemu_opt_get(opts, "initiator-name");
+ if (name) {
+ return g_strdup(name);
+ }
+
++ name_fh = fopen("/etc/iscsi/initiatorname.iscsi", "r");
++ if (name_fh) {
++ const char *key = "InitiatorName";
++ char buffer[4096];
++ char *line;
++
++ while ((line = fgets(buffer, sizeof(buffer), name_fh))) {
++ line = g_strstrip(line);
++ if (!strncmp(line, key, strlen(key))) {
++ line = strchr(line, '=');
++ if (!line || strlen(line) == 1) {
++ continue;
++ }
++ line++;
++ g_strstrip(line);
++ if (!strlen(line)) {
++ continue;
++ }
++ name = line;
++ break;
++ }
++ }
++ fclose(name_fh);
++
++ if (name) {
++ return g_strdup(name);
++ }
++ }
++
+ uuid_info = qmp_query_uuid(NULL);
+ if (strcmp(uuid_info->UUID, UUID_NONE) == 0) {
+ name = qemu_get_vm_name();