3357ac7380
Because "PcdPciDisableBusEnumeration" is always TRUE in the OvmfXen platform, we can remove the delayed ACPI table installation from XenAcpiPlatformDxe. A number of dependencies become useless this way; remove them too. (Note that, conversely, in the QemuFwCfgAcpiPlatformDxe driver, we *cannot* assume that "PcdPciDisableBusEnumeration" is always FALSE, regardless of Xen: in the ArmVirtQemu platform, the PCD may carry either FALSE or TRUE, dependent on whether or not the QEMU "virt" machine configuration includes a PCIe host controller, respectively.) Cc: Anthony Perard <anthony.perard@citrix.com> Cc: Ard Biesheuvel <ardb+tianocore@kernel.org> Cc: Jordan Justen <jordan.l.justen@intel.com> Cc: Julien Grall <julien@xen.org> Cc: Philippe Mathieu-Daudé <philmd@redhat.com> Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=2122 Signed-off-by: Laszlo Ersek <lersek@redhat.com> Message-Id: <20210526201446.12554-21-lersek@redhat.com> Reviewed-by: Ard Biesheuvel <ardb@kernel.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
44 lines
1.0 KiB
C
44 lines
1.0 KiB
C
/** @file
|
|
Entry point of OVMF ACPI Platform Driver for Xen guests
|
|
|
|
Copyright (C) 2015-2021, Red Hat, Inc.
|
|
Copyright (c) 2008 - 2015, Intel Corporation. All rights reserved.<BR>
|
|
|
|
SPDX-License-Identifier: BSD-2-Clause-Patent
|
|
**/
|
|
|
|
#include <Library/DebugLib.h> // ASSERT_EFI_ERROR()
|
|
#include <Library/UefiBootServicesTableLib.h> // gBS
|
|
#include <Protocol/AcpiTable.h> // EFI_ACPI_TABLE_PROTOCOL
|
|
|
|
#include "AcpiPlatform.h"
|
|
|
|
STATIC
|
|
EFI_ACPI_TABLE_PROTOCOL *
|
|
FindAcpiTableProtocol (
|
|
VOID
|
|
)
|
|
{
|
|
EFI_STATUS Status;
|
|
EFI_ACPI_TABLE_PROTOCOL *AcpiTable;
|
|
|
|
Status = gBS->LocateProtocol (
|
|
&gEfiAcpiTableProtocolGuid,
|
|
NULL,
|
|
(VOID**)&AcpiTable
|
|
);
|
|
ASSERT_EFI_ERROR (Status);
|
|
return AcpiTable;
|
|
}
|
|
|
|
|
|
EFI_STATUS
|
|
EFIAPI
|
|
AcpiPlatformEntryPoint (
|
|
IN EFI_HANDLE ImageHandle,
|
|
IN EFI_SYSTEM_TABLE *SystemTable
|
|
)
|
|
{
|
|
return InstallAcpiTables (FindAcpiTableProtocol ());
|
|
}
|