70d5086c32
Generated mechanically with:
find OvmfPkg -type f -exec sed -i -e 's/EFI_D_/DEBUG_/g' {} \;
Signed-off-by: Rebecca Cran <rebecca@bsdio.com>
Cc: Philippe Mathieu-Daude <philmd@redhat.com>
Cc: Jordan Justen <jordan.l.justen@intel.com>
Cc: Ard Biesheuvel <ard.biesheuvel@arm.com>
Cc: Laszlo Ersek <lersek@redhat.com>
Message-Id: <20200429215327.606467-1-rebecca@bsdio.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
91 lines
2.4 KiB
C
91 lines
2.4 KiB
C
/** @file
|
|
Entry point of OVMF ACPI Platform Driver
|
|
|
|
Copyright (C) 2015, Red Hat, Inc.
|
|
Copyright (c) 2008 - 2015, Intel Corporation. All rights reserved.<BR>
|
|
|
|
SPDX-License-Identifier: BSD-2-Clause-Patent
|
|
**/
|
|
|
|
#include <Guid/RootBridgesConnectedEventGroup.h>
|
|
#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;
|
|
}
|
|
|
|
|
|
STATIC
|
|
VOID
|
|
EFIAPI
|
|
OnRootBridgesConnected (
|
|
IN EFI_EVENT Event,
|
|
IN VOID *Context
|
|
)
|
|
{
|
|
EFI_STATUS Status;
|
|
|
|
DEBUG ((DEBUG_INFO,
|
|
"%a: root bridges have been connected, installing ACPI tables\n",
|
|
__FUNCTION__));
|
|
Status = InstallAcpiTables (FindAcpiTableProtocol ());
|
|
if (EFI_ERROR (Status)) {
|
|
DEBUG ((DEBUG_ERROR, "%a: InstallAcpiTables: %r\n", __FUNCTION__, Status));
|
|
}
|
|
gBS->CloseEvent (Event);
|
|
}
|
|
|
|
|
|
EFI_STATUS
|
|
EFIAPI
|
|
AcpiPlatformEntryPoint (
|
|
IN EFI_HANDLE ImageHandle,
|
|
IN EFI_SYSTEM_TABLE *SystemTable
|
|
)
|
|
{
|
|
EFI_STATUS Status;
|
|
EFI_EVENT RootBridgesConnected;
|
|
|
|
//
|
|
// If the platform doesn't support PCI, or PCI enumeration has been disabled,
|
|
// install the tables at once, and let the entry point's return code reflect
|
|
// the full functionality.
|
|
//
|
|
if (PcdGetBool (PcdPciDisableBusEnumeration)) {
|
|
DEBUG ((DEBUG_INFO, "%a: PCI or its enumeration disabled, installing "
|
|
"ACPI tables\n", __FUNCTION__));
|
|
return InstallAcpiTables (FindAcpiTableProtocol ());
|
|
}
|
|
|
|
//
|
|
// Otherwise, delay installing the ACPI tables until root bridges are
|
|
// connected. The entry point's return status will only reflect the callback
|
|
// setup. (Note that we're a DXE_DRIVER; our entry point function is invoked
|
|
// strictly before BDS is entered and can connect the root bridges.)
|
|
//
|
|
Status = gBS->CreateEventEx (EVT_NOTIFY_SIGNAL, TPL_CALLBACK,
|
|
OnRootBridgesConnected, NULL /* Context */,
|
|
&gRootBridgesConnectedEventGroupGuid, &RootBridgesConnected);
|
|
if (!EFI_ERROR (Status)) {
|
|
DEBUG ((DEBUG_INFO,
|
|
"%a: waiting for root bridges to be connected, registered callback\n",
|
|
__FUNCTION__));
|
|
}
|
|
|
|
return Status;
|
|
}
|