[PATCH] OvmfPkg/PlatformBootManagerLib: add USB keyboard to ConIn

[Laszlo Ersek <lersek@redhat.com>]

PlatformInitializeConsole() (called by PlatformBootManagerBeforeConsole())
adds elements of "gPlatformConsole" to ConIn / ConOut / ErrOut (as
requested per element) if at boot at least one of ConIn and ConOut doesn't
exist. This typically applies to new VMs, and VMs with freshly recreated
varstores.

Add a USB keyboard wildcard to ConIn via "gPlatformConsole", so that we
not only bind the PS/2 keyboard. (The PS/2 keyboard is added in
PrepareLpcBridgeDevicePath()). Explicitly connecting the USB keyboard is
necessary after commit 245c643cc8b7.

Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Jordan Justen <jordan.l.justen@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
---

Notes:
    Repo:   https://github.com/lersek/edk2.git
    Branch: ovmf_usb_kbd_con

 OvmfPkg/Library/PlatformBootManagerLib/PlatformData.c | 32 ++++++++++++++++++++
 1 file changed, 32 insertions(+)

diff --git a/OvmfPkg/Library/PlatformBootManagerLib/PlatformData.c b/OvmfPkg/Library/PlatformBootManagerLib/PlatformData.c
index 82f294577ecf..a50cd7bcaf90 100644
--- a/OvmfPkg/Library/PlatformBootManagerLib/PlatformData.c
+++ b/OvmfPkg/Library/PlatformBootManagerLib/PlatformData.c
@@ -27,6 +27,16 @@ typedef struct {
 } VENDOR_UART_DEVICE_PATH;
 #pragma pack()
 
+//
+// USB Keyboard Device Path structure
+//
+#pragma pack (1)
+typedef struct {
+  USB_CLASS_DEVICE_PATH    Keyboard;
+  EFI_DEVICE_PATH_PROTOCOL End;
+} USB_KEYBOARD_DEVICE_PATH;
+#pragma pack ()
+
 ACPI_HID_DEVICE_PATH       gPnpPs2KeyboardDeviceNode  = gPnpPs2Keyboard;
 ACPI_HID_DEVICE_PATH       gPnp16550ComPortDeviceNode = gPnp16550ComPort;
 UART_DEVICE_PATH           gUartDeviceNode            = gUart;
@@ -71,6 +81,24 @@ VENDOR_UART_DEVICE_PATH gDebugAgentUartDevicePath = {
   gEndEntire
 };
 
+STATIC USB_KEYBOARD_DEVICE_PATH gUsbKeyboardDevicePath = {
+  {
+    {
+      MESSAGING_DEVICE_PATH,
+      MSG_USB_CLASS_DP,
+      {
+        (UINT8)sizeof (USB_CLASS_DEVICE_PATH),
+        (UINT8)(sizeof (USB_CLASS_DEVICE_PATH) >> 8)
+      }
+    },
+    0xFFFF, // VendorId: any
+    0xFFFF, // ProductId: any
+    3,      // DeviceClass: HID
+    1,      // DeviceSubClass: boot
+    1       // DeviceProtocol: keyboard
+  },
+  gEndEntire
+};
 
 //
 // Predefined platform default console device path
@@ -80,6 +108,10 @@ PLATFORM_CONSOLE_CONNECT_ENTRY   gPlatformConsole[] = {
     (EFI_DEVICE_PATH_PROTOCOL *) &gDebugAgentUartDevicePath,
     (CONSOLE_OUT | CONSOLE_IN | STD_ERROR)
   },
+  {
+    (EFI_DEVICE_PATH_PROTOCOL *)&gUsbKeyboardDevicePath,
+    CONSOLE_IN
+  },
   {
     NULL,
     0
-- 
2.14.1.3.gb7cf6e02401b