ArmPkg/PlatformBootManagerLib: connect non-discoverable USB hosts

The way the BDS handles the short-form USB device path of the console
keyboard relies on USB host controllers to be locatable via their PCI
metadata, which implies that these controllers already have a PCI I/O
protocol installed on their handle.

This is not the case for non-discoverable USB host controllers that are
supported by the NonDiscoverable PCI device driver. These controllers
must be connected first, or the BDS will never notice their existence,
and will not enable any USB keyboards connected through them.

Let's work around this by connecting these handles explicitly. This is
a bit of a stopgap, but it is the cleanest way of dealing with this
without violating the UEFI driver model entirely. This ensures that
platforms that do not rely on ConnectAll() will keep working as
expected.

Signed-off-by: Ard Biesheuvel <ard.biesheuvel@arm.com>
Reviewed-by: Leif Lindholm <leif@nuviainc.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
This commit is contained in:
Ard Biesheuvel
2020-05-22 10:40:06 +02:00
committed by mergify[bot]
parent 8035edbe12
commit 0ae52d4fd1
2 changed files with 46 additions and 0 deletions

View File

@@ -66,6 +66,9 @@
gEfiMdePkgTokenSpaceGuid.PcdPlatformBootTimeOut
[Guids]
gEdkiiNonDiscoverableEhciDeviceGuid
gEdkiiNonDiscoverableUhciDeviceGuid
gEdkiiNonDiscoverableXhciDeviceGuid
gEfiFileInfoGuid
gEfiFileSystemInfoGuid
gEfiFileSystemVolumeLabelInfoIdGuid
@@ -74,6 +77,7 @@
gUefiShellFileGuid
[Protocols]
gEdkiiNonDiscoverableDeviceProtocolGuid
gEfiDevicePathProtocolGuid
gEfiGraphicsOutputProtocolGuid
gEfiLoadedImageProtocolGuid