Add PC speaker with config hints.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---
 docs/system/target-i386-desc.rst.inc | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/docs/system/target-i386-desc.rst.inc b/docs/system/target-i386-desc.rst.inc
index 47a169e0ae2a..7d1fffacbea3 100644
--- a/docs/system/target-i386-desc.rst.inc
+++ b/docs/system/target-i386-desc.rst.inc
@@ -31,6 +31,8 @@ The QEMU PC System emulator simulates the following peripherals:
 
 -  CS4231A compatible sound card
 
+-  PC speaker
+
 -  PCI UHCI, OHCI, EHCI or XHCI USB controller and a virtual USB-1.1
    hub.
 
@@ -49,7 +51,7 @@ must be told to not have parallel ports to have working GUS.
 
 .. parsed-literal::
 
-   |qemu_system_x86| dos.img -soundhw gus -parallel none
+   |qemu_system_x86| dos.img -device gus -parallel none
 
 Alternatively:
 
@@ -60,3 +62,12 @@ Alternatively:
 Or some other unclaimed IRQ.
 
 CS4231A is the chip used in Windows Sound System and GUSMAX products
+
+The PC speaker audio device can be configured using the pcspk-audiodev
+machine property, i.e.
+
+.. parsed-literal::
+
+   |qemu_system_x86| some.img \
+   -audiodev <backend>,id=<name> \
+   -machine pcspk-audiodev=<name>
-- 
2.18.4