cc302b799e
- #include only such public headers in "AcpiPlatform.h" that are required by the function declarations and type definitions introduced in "AcpiPlatform.h". Don't use "AcpiPlatform.h" as a convenience #include file. - In every file, list every necessary public #include individually, with an example identifier that's actually consumed. - Remove unnecessary lib classes, add unlisted lib classes. - Remove unnecessary #include directives, add unlisted #include directives. Cc: Ard Biesheuvel <ardb+tianocore@kernel.org> Cc: Jordan Justen <jordan.l.justen@intel.com> 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: <20210526201446.12554-11-lersek@redhat.com> Reviewed-by: Ard Biesheuvel <ardb@kernel.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
96 lines
2.7 KiB
C
96 lines
2.7 KiB
C
/** @file
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Entry point of OVMF ACPI Platform Driver
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Copyright (C) 2015, Red Hat, Inc.
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Copyright (c) 2008 - 2015, Intel Corporation. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#include <Guid/RootBridgesConnectedEventGroup.h> // gRootBridgesConnectedEve...
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#include <Library/DebugLib.h> // DEBUG()
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#include <Library/PcdLib.h> // PcdGetBool()
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#include <Library/UefiBootServicesTableLib.h> // gBS
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#include <Protocol/AcpiTable.h> // EFI_ACPI_TABLE_PROTOCOL
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#include "AcpiPlatform.h"
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STATIC
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EFI_ACPI_TABLE_PROTOCOL *
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FindAcpiTableProtocol (
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VOID
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)
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{
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EFI_STATUS Status;
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EFI_ACPI_TABLE_PROTOCOL *AcpiTable;
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Status = gBS->LocateProtocol (
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&gEfiAcpiTableProtocolGuid,
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NULL,
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(VOID**)&AcpiTable
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);
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ASSERT_EFI_ERROR (Status);
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return AcpiTable;
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}
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STATIC
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VOID
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EFIAPI
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OnRootBridgesConnected (
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IN EFI_EVENT Event,
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IN VOID *Context
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)
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{
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EFI_STATUS Status;
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DEBUG ((DEBUG_INFO,
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"%a: root bridges have been connected, installing ACPI tables\n",
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__FUNCTION__));
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Status = InstallAcpiTables (FindAcpiTableProtocol ());
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if (EFI_ERROR (Status)) {
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DEBUG ((DEBUG_ERROR, "%a: InstallAcpiTables: %r\n", __FUNCTION__, Status));
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}
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gBS->CloseEvent (Event);
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}
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EFI_STATUS
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EFIAPI
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AcpiPlatformEntryPoint (
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IN EFI_HANDLE ImageHandle,
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IN EFI_SYSTEM_TABLE *SystemTable
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)
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{
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EFI_STATUS Status;
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EFI_EVENT RootBridgesConnected;
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//
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// If the platform doesn't support PCI, or PCI enumeration has been disabled,
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// install the tables at once, and let the entry point's return code reflect
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// the full functionality.
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//
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if (PcdGetBool (PcdPciDisableBusEnumeration)) {
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DEBUG ((DEBUG_INFO, "%a: PCI or its enumeration disabled, installing "
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"ACPI tables\n", __FUNCTION__));
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return InstallAcpiTables (FindAcpiTableProtocol ());
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}
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//
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// Otherwise, delay installing the ACPI tables until root bridges are
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// connected. The entry point's return status will only reflect the callback
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// setup. (Note that we're a DXE_DRIVER; our entry point function is invoked
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// strictly before BDS is entered and can connect the root bridges.)
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//
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Status = gBS->CreateEventEx (EVT_NOTIFY_SIGNAL, TPL_CALLBACK,
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OnRootBridgesConnected, NULL /* Context */,
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&gRootBridgesConnectedEventGroupGuid, &RootBridgesConnected);
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if (!EFI_ERROR (Status)) {
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DEBUG ((DEBUG_INFO,
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"%a: waiting for root bridges to be connected, registered callback\n",
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__FUNCTION__));
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}
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return Status;
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}
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