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vmspawn: Attach a USB keyboard in GUI mode

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EDK2's UsbKbDxe is the only driver that registers a default HII
keyboard layout via the HII database protocol; the PS/2 driver does
not. Adding a USB xHCI controller and usb-kbd in CONSOLE_GUI mode
gives us a layout to query, which systemd-boot exports through the
LoaderKeyboardLayout EFI variable — useful for exercising that
codepath end-to-end.
This commit is contained in:
Daan De Meyer
2026-05-11 16:16:14 +01:00
committed by Luca Boccassi
parent 4409e52494
commit 6f3fa71775
1 changed files with 17 additions and 0 deletions
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src/vmspawn/vmspawn.c
+17
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@@ -2978,6 +2978,23 @@ static int run_virtual_machine(int kvm_device_fd, int vhost_device_fd) {
if (r < 0)
return r;
/* Attach a USB xHCI controller and a USB keyboard. We prefer USB over the implicit PS/2
* keyboard so that EDK2's UsbKbDxe driver runs, which registers the default HII keyboard
* layout package — the PS/2 driver does not. That makes
* EFI_HII_DATABASE_PROTOCOL.GetKeyboardLayout() return a usable layout, which systemd-boot
* then exports via the LoaderKeyboardLayout EFI variable, which is useful for testing that
* codepath actually works. */
r = qemu_config_section(config_file, "device", "xhci0",
"driver", "qemu-xhci");
if (r < 0)
return r;
r = qemu_config_section(config_file, "device", "usb-kbd0",
"driver", "usb-kbd",
"bus", "xhci0.0");
if (r < 0)
return r;
break;
case CONSOLE_HEADLESS: