From: Jordan Justen <jordan.l.justen@intel.com>
To: edk2-devel@lists.01.org
Cc: Jordan Justen <jordan.l.justen@intel.com>,
Laszlo Ersek <lersek@redhat.com>
Subject: [PATCH 06/12] OvmfPkg QemuFlash: Add DetectFlashBaseLib.inf 'NULL' library
Date: Mon, 27 Mar 2017 01:05:38 -0700 [thread overview]
Message-ID: <20170327080544.24748-7-jordan.l.justen@intel.com> (raw)
In-Reply-To: <20170327080544.24748-1-jordan.l.justen@intel.com>
This library attempts to detect QEMU flash. If writable flash is
detected, then PcdOvmfFlashVariablesEnable is set to TRUE.
Cc: Laszlo Ersek <lersek@redhat.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jordan Justen <jordan.l.justen@intel.com>
---
.../DetectFlashNullLib.c | 41 +++++++++++++++
.../DetectFlashNullLib.inf | 60 ++++++++++++++++++++++
2 files changed, 101 insertions(+)
create mode 100644 OvmfPkg/QemuFlashFvbServicesRuntimeDxe/DetectFlashNullLib.c
create mode 100644 OvmfPkg/QemuFlashFvbServicesRuntimeDxe/DetectFlashNullLib.inf
diff --git a/OvmfPkg/QemuFlashFvbServicesRuntimeDxe/DetectFlashNullLib.c b/OvmfPkg/QemuFlashFvbServicesRuntimeDxe/DetectFlashNullLib.c
new file mode 100644
index 0000000000..cfa6026ff2
--- /dev/null
+++ b/OvmfPkg/QemuFlashFvbServicesRuntimeDxe/DetectFlashNullLib.c
@@ -0,0 +1,41 @@
+/** @file
+ OVMF support for QEMU system firmware flash device
+
+ Copyright (c) 2009 - 2017, Intel Corporation. All rights reserved.<BR>
+
+ This program and the accompanying materials are licensed and made available
+ under the terms and conditions of the BSD License which accompanies this
+ distribution. The full text of the license may be found at
+ http://opensource.org/licenses/bsd-license.php
+
+ THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+#include <Library/DebugLib.h>
+#include <Library/PcdLib.h>
+#include <Uefi.h>
+
+#include "QemuFlash.h"
+
+
+/**
+ Initializes QEMU flash memory support
+
+ @retval !RETURN_SUCCESS Failed to set the PCD
+ @retval RETURN_SUCCESS The constructor was successful
+
+**/
+RETURN_STATUS
+EFIAPI
+DetectFlashConstructor (
+ VOID
+ )
+{
+ if (QemuFlashDetected ()) {
+ return PcdSetBoolS (PcdOvmfFlashVariablesEnable, TRUE);
+ }
+
+ return RETURN_SUCCESS;
+}
diff --git a/OvmfPkg/QemuFlashFvbServicesRuntimeDxe/DetectFlashNullLib.inf b/OvmfPkg/QemuFlashFvbServicesRuntimeDxe/DetectFlashNullLib.inf
new file mode 100644
index 0000000000..1b7717af3e
--- /dev/null
+++ b/OvmfPkg/QemuFlashFvbServicesRuntimeDxe/DetectFlashNullLib.inf
@@ -0,0 +1,60 @@
+## @file
+# This is a small library with a constructor that will set a PCD if
+# writable flash is detected.
+#
+# Copyright (c) 2006 - 2017, Intel Corporation. All rights reserved.<BR>
+#
+# This program and the accompanying materials are licensed and made available
+# under the terms and conditions of the BSD License which accompanies this
+# distribution. The full text of the license may be found at
+# http://opensource.org/licenses/bsd-license.php
+#
+# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR
+# IMPLIED.
+#
+##
+
+[Defines]
+ INF_VERSION = 0x00010005
+ BASE_NAME = DetectFlashNullLib
+ FILE_GUID = 6ec93337-513a-4188-bf57-7bb746c6e8ac
+ MODULE_TYPE = BASE
+ VERSION_STRING = 1.0
+ LIBRARY_CLASS = NULL|PEIM DXE_RUNTIME_DRIVER DXE_SMM_DRIVER
+ CONSTRUCTOR = DetectFlashConstructor
+
+#
+# The following information is for reference only and not required by the build
+# tools.
+#
+# VALID_ARCHITECTURES = IA32 X64
+#
+
+[Sources]
+ DetectFlashNullLib.c
+ QemuFlash.c
+
+[Packages]
+ MdePkg/MdePkg.dec
+ OvmfPkg/OvmfPkg.dec
+
+[LibraryClasses]
+ BaseLib
+ BaseMemoryLib
+ DebugLib
+ PcdLib
+
+[FixedPcd]
+ gUefiOvmfPkgTokenSpaceGuid.PcdOvmfFdBaseAddress
+ gUefiOvmfPkgTokenSpaceGuid.PcdOvmfFirmwareFdSize
+ gUefiOvmfPkgTokenSpaceGuid.PcdOvmfFirmwareBlockSize
+
+[Pcd]
+ gUefiOvmfPkgTokenSpaceGuid.PcdOvmfFlashVariablesEnable
+
+[FeaturePcd]
+ gUefiOvmfPkgTokenSpaceGuid.PcdSmmSmramRequire
+
+[Depex]
+ TRUE
--
2.11.0
next prev parent reply other threads:[~2017-03-27 8:08 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-03-27 8:05 [PATCH 00/12] OvmfPkg: Enable variable access in PEI Jordan Justen
2017-03-27 8:05 ` [PATCH 01/12] OvmfPkg/build.sh: Add support for --disable-flash switch Jordan Justen
2017-03-27 8:05 ` [PATCH 02/12] OvmfPkg: resolve PcdLib for all PEIMs individually Jordan Justen
2017-03-27 8:05 ` [PATCH 03/12] OvmfPkg: resolve PcdLib for PEIMs to PeiPcdLib by default Jordan Justen
2017-03-27 8:05 ` [PATCH 04/12] OvmfPkg QemuFlash: Make QemuFlash.* Base class safe Jordan Justen
2017-03-27 8:05 ` [PATCH 05/12] OvmfPkg QemuFlash: Make QemuFlashDetected external Jordan Justen
2017-03-27 8:05 ` Jordan Justen [this message]
2017-03-27 8:05 ` [PATCH 07/12] OvmfPkg PlatformPei: Detect and set PcdOvmfFlashVariablesEnable Jordan Justen
2017-03-27 8:05 ` [PATCH 08/12] OvmfPkg/EmuVariableFvbRuntimeDxe: Use PcdOvmfFlashVariablesEnable Jordan Justen
2017-03-27 8:05 ` [PATCH 09/12] OvmfPkg PlatformPei: Set flash variable PCDs Jordan Justen
2017-03-27 8:05 ` [PATCH 10/12] OvmfPkg PlatformPei: Initialize memory based variable store buffer Jordan Justen
2017-03-27 8:05 ` [PATCH 11/12] OvmfPkg: Enable PEI variable access Jordan Justen
2017-03-27 8:05 ` [PATCH 12/12] OvmfPkg QemuFlashFvbServicesRuntimeDxe: Cleanup init now done in PEI Jordan Justen
2017-03-27 18:03 ` [PATCH 00/12] OvmfPkg: Enable variable access " Laszlo Ersek
2017-03-27 21:47 ` Jordan Justen
2017-03-28 9:22 ` Laszlo Ersek
2017-03-29 5:24 ` Jordan Justen
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-list from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20170327080544.24748-7-jordan.l.justen@intel.com \
--to=devel@edk2.groups.io \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox