qemu-options.hx: document Hyper-V enlightenments accelerator option

This option is WHPX-specific and controls whether Hyper-V enlightenments are enabled.

Signed-off-by: Mohamed Mediouni <mohamed@unpredictable.fr>
Link: https://lore.kernel.org/r/20260311102626.46546-3-mohamed@unpredictable.fr
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

diff --git a/qemu-options.hx b/qemu-options.hx
index 890c4f1d2307a6bc8cb861961ba33123b823acef..69e5a874c1ab2c35fd12646287e4507bb3630bee 100644 (file)
--- a/qemu-options.hx
+++ b/qemu-options.hx
@@ -325,6 +325,11 @@ SRST
         option can be used to pass the KVM device to use via a file descriptor
         by setting the value to ``/dev/fdset/NN``.
 
+    ``hyperv=on|off|auto``
+        For the WHPX backend, determines whether to enable Hyper-V enlightenments.
+        On x86_64, Hyper-V enlightenments are on by default. On AArch64, they're off
+        by default.
+
 ERST
 
 DEF("smp", HAS_ARG, QEMU_OPTION_smp,