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Acidanthera UEFI Development Kit based on EDK II edk2-stable202311
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Laszlo Ersek 9965cbd424 OvmfPkg/AcpiPlatformDxe: implement the QEMU_LOADER_WRITE_POINTER command 
The QEMU_LOADER_WRITE_POINTER command instructs the firmware to write the
address of a field within a previously allocated/downloaded fw_cfg blob
into another (writeable) fw_cfg file at a specific offset.

Put differently, QEMU_LOADER_WRITE_POINTER propagates, to QEMU, the
address that QEMU_LOADER_ALLOCATE placed the designated fw_cfg blob at, as
adjusted for the given field inside the allocated blob.

The implementation is similar to that of QEMU_LOADER_ADD_POINTER. Since
here we "patch" a pointer object in "fw_cfg file space", not guest memory
space, we utilize the QemuFwCfgSkipBytes() and QemuFwCfgWriteBytes() APIs
completed in commit range 465663e9f128..7fcb73541299.

An interesting aspect is that QEMU_LOADER_WRITE_POINTER creates a
host-level reference to a guest memory location. Therefore, if we fail to
process the linker/loader script for any reason, we have to clear out
those references first, before we release the guest memory allocations in
response to the error.

Cc: Jordan Justen <jordan.l.justen@intel.com>
Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=359
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
 		2017-02-21 13:10:39 +01:00
AppPkg AppPkg: Update email and URL. 2016-10-26 09:34:34 -07:00
ArmPkg ArmPkg/GenericWatchdogDxe: Declare MMIO PCDs as UINT64 2017-02-07 08:37:30 +00:00
ArmPlatformPkg ArmPlatformPkg/PL061Gpio: fix the offset value in Get function 2017-02-16 11:31:25 +00:00
ArmVirtPkg ArmVirtPkg/QemuFwCfgLib: implement QemuFwCfgSkipBytes() API 2017-01-31 00:14:41 +01:00
BaseTools BaseTools: Fix bug for GUIDED tool path override by DSC [BuildOptions] 2017-02-17 09:37:12 +08:00
BeagleBoardPkg Omap35xxPkg/PciEmulation: port to new non-discoverable device infrastructure 2016-12-18 17:31:47 +00:00
Conf EDK II: Add .gitignore 2014-10-14 16:08:15 +00:00
CorebootModulePkg CorebootPayloadPkg/CbSupportPei: Fix the memory map issue 2016-11-17 14:49:11 -08:00
CorebootPayloadPkg CorebootPayloadPkg: Use EfiEventGroupSignal from UefiLib 2017-01-20 15:55:41 +08:00
CryptoPkg CryptoPkg/TlsLib: Refine the coding style. 2017-01-06 11:59:43 +08:00
DuetPkg DuetPkg: Remove use of IntelFrameworkModulePkg legacy libs 2016-12-02 15:59:19 +00:00
EdkCompatibilityPkg EdkCompatibilityPkg: Fix some typos of "according" 2017-02-08 14:49:21 +08:00
EdkShellBinPkg */Contributions.txt: Update example email address 2015-02-03 17:29:14 +00:00
EdkShellPkg */Contributions.txt: Update example email address 2015-02-03 17:29:14 +00:00
EmbeddedPkg EmbeddedPkg: Remove use of IntelFrameworkModulePkg legacy libs 2016-12-05 15:53:30 +00:00
EmulatorPkg EmulatorPkg: Remove use of IntelFrameworkModulePkg legacy libs 2016-12-02 15:59:19 +00:00
FatBinPkg FatBinPkg: New EnhancedFatDxe binaries for IA32, X64, EBC and IPF 2016-12-19 15:26:52 +08:00
FatPkg FatPkg: Explicitly declare FAT_CLUSTER_SPECIAL as unsigned type 2017-01-12 21:26:27 +08:00
IntelFrameworkModulePkg IntelFrameworkModulePkg: Use EfiEventEmptyFunction from UefiLib 2017-01-20 15:55:32 +08:00
IntelFrameworkPkg IntelFrameworkPkg UefiLib: Make the event empty function public 2017-01-20 15:51:17 +08:00
IntelFsp2Pkg IntelFsp2Pkg: 41d739e breaks flat tree build 2016-12-05 14:17:23 +08:00
IntelFsp2WrapperPkg IntelFsp2WrapperPkg: Add a PCD to control if signaling PciEnumerationComplete. 2016-10-28 07:46:42 +08:00
IntelFspPkg IntelFspPkg: Fix typos in comments 2016-10-24 09:26:28 +08:00
IntelFspWrapperPkg IntelFspWrapperPkg: Fix typos in comments 2016-10-24 09:26:30 +08:00
IntelSiliconPkg IntelSiliconPkg: Fix format issues 2016-12-20 10:51:16 +08:00
MdeModulePkg MdeModulePkg/BMMUiLib: Remove old useless data before new save action 2017-02-21 19:19:22 +08:00
MdePkg MdePkg/BasePrintLib: Add safe print functions [A|U]ValueToStringS 2017-02-21 13:56:14 +08:00
NetworkPkg NetworkPkg/IpSecDxe: Add check to avoid possible divide by zero 2017-02-21 09:25:54 +08:00
Nt32Pkg Nt32Pkg.dsc: Add flag to control HTTP connections 2017-01-23 10:27:45 +08:00
Omap35xxPkg Omap35xxPkg/PciEmulation: port to new non-discoverable device infrastructure 2016-12-18 17:31:47 +00:00
OptionRomPkg OptionRomPkg: Fix typos in comments 2016-11-15 11:05:34 +08:00
OvmfPkg OvmfPkg/AcpiPlatformDxe: implement the QEMU_LOADER_WRITE_POINTER command 2017-02-21 13:10:39 +01:00
PcAtChipsetPkg PcAtChipsetPkg: Fix typing errors 2017-01-20 08:50:09 +08:00
PerformancePkg PerformancePkg/Dp_App: rebase to ARRAY_SIZE() 2016-10-27 11:10:59 +02:00
QuarkPlatformPkg QuarkPlatformPkg/Tpm12DeviceLibAtmelI2c: Fix GCC build issues 2017-01-11 11:11:30 -08:00
QuarkSocPkg QuarkSocPkg: Remove use of IntelFrameworkModulePkg legacy libs 2016-12-02 15:59:19 +00:00
SecurityPkg SecurityPkg/TpmCommandLib: Add Tpm2ReadPublic. 2017-02-21 16:47:18 +08:00
ShellBinPkg ShellBinPkg: New Shell binaries for IA32 and X64 2016-12-19 15:27:38 +08:00
ShellPkg ShellPkg/pci: Report error when invalid value is specified for "-ec" 2017-02-16 13:40:28 +08:00
SignedCapsulePkg SignedCapsulePkg/EdkiiSystemCapsuleLib: Fix logic error. 2017-02-08 21:39:15 -08:00
SourceLevelDebugPkg SourceLevelDebugPkg: Avoid to re-init IDT table again at SMI entry 2016-11-30 14:34:45 +08:00
StdLib StdLib/LibC ARM AARCH64: do not redefine compiler intrinsics 2016-08-09 10:10:12 +02:00
StdLibPrivateInternalFiles StdLib: Clarify and improve comments. 2016-01-06 00:31:42 +00:00
UefiCpuPkg UefiCpuPkg: Modify CpuIoPei to support new IoLib library 2017-01-17 10:10:32 +08:00
UnixPkg UnixPkg: Remove UnixPkg files (It is replaced by EmulatorPkg) 2013-07-29 21:09:55 +00:00
Vlv2DeviceRefCodePkg Vlv2DeviceRefCodePkg: Fixed thermal issue. 2017-02-08 15:32:39 +08:00
Vlv2TbltDevicePkg Vlv2TbltDevicePkg/BootScriptSaveDxe: save 64-bit LoopTimes 2017-01-03 12:23:41 +01:00
.gitignore EDK II: Add .gitignore 2014-10-14 16:08:15 +00:00
BuildNotes2.txt BaseTools: Updated BuildNotes URLs 2016-03-25 09:46:44 +08:00
Edk2Setup.bat Edk2Setup.bat: Fix build errors from VS tools PREFIX ENV missing 2016-11-05 09:10:58 +08:00
Maintainers.txt Maintainers.txt: Change maintainer of VLV2 packages. 2016-10-27 21:08:23 +08:00
edksetup.bat edksetup.bat: make sure BASE_TOOLS_PATH be set correctly 2016-10-26 13:45:45 +08:00
edksetup.sh edksetup.sh, BaseTools/BuildEnv: add --reconfig support 2016-10-24 13:53:16 +01:00