From f27ad659f83d1d13493473e847840345a4abe5df Mon Sep 17 00:00:00 2001
From: Wim Taymans <wtaymans@redhat.com>
Date: Fri, 16 Apr 2021 16:41:20 +0200
Subject: [PATCH] spa: add property to force VM

Also add PIPEWIRE_VM to force a VM type.
---
 spa/include/spa/support/cpu.h | 1 +
 spa/plugins/support/cpu.c     | 2 ++
 src/pipewire/pipewire.c       | 2 ++
 3 files changed, 5 insertions(+)

diff --git a/spa/include/spa/support/cpu.h b/spa/include/spa/support/cpu.h
index 455e1a2fa..af3d0223d 100644
--- a/spa/include/spa/support/cpu.h
+++ b/spa/include/spa/support/cpu.h
@@ -140,6 +140,7 @@ struct spa_cpu_methods {
 
 /** keys can be given when initializing the cpu handle */
 #define SPA_KEY_CPU_FORCE		"cpu.force"		/**< force cpu flags */
+#define SPA_KEY_CPU_VM_TYPE		"cpu.vm.type"		/**< force a VM type */
 
 #ifdef __cplusplus
 }  /* extern "C" */
diff --git a/spa/plugins/support/cpu.c b/spa/plugins/support/cpu.c
index 032b6669a..11b16e8f1 100644
--- a/spa/plugins/support/cpu.c
+++ b/spa/plugins/support/cpu.c
@@ -259,6 +259,8 @@ impl_init(const struct spa_handle_factory *factory,
 	if (info) {
 		if ((str = spa_dict_lookup(info, SPA_KEY_CPU_FORCE)) != NULL)
 			this->flags = atoi(str);
+		if ((str = spa_dict_lookup(info, SPA_KEY_CPU_VM_TYPE)) != NULL)
+			this->vm_type = atoi(str);
 	}
 
 	spa_log_debug(this->log, NAME " %p: count:%d align:%d flags:%08x",
diff --git a/src/pipewire/pipewire.c b/src/pipewire/pipewire.c
index 1b2a8f8ea..76f7e0c33 100644
--- a/src/pipewire/pipewire.c
+++ b/src/pipewire/pipewire.c
@@ -538,6 +538,8 @@ void pw_init(int *argc, char **argv[])
 	n_items = 0;
 	if ((str = getenv("PIPEWIRE_CPU")))
 		items[n_items++] = SPA_DICT_ITEM_INIT(SPA_KEY_CPU_FORCE, str);
+	if ((str = getenv("PIPEWIRE_VM")))
+		items[n_items++] = SPA_DICT_ITEM_INIT(SPA_KEY_CPU_VM_TYPE, str);
 	info = SPA_DICT_INIT(items, n_items);
 
 	add_interface(support, SPA_NAME_SUPPORT_CPU, SPA_TYPE_INTERFACE_CPU, &info);