Current implementation assumes the performance entry count has no change from
multiple GetPerformanceMeasurement() while loops, it may cause the allocated buffer
for PerfEntriesAsDxeHandle at the first loop to be overflowed if the following loop has
the count changed.
This patch is also to sync the change at
commit R18417 "MdeModulePkg: Fix a performance data buffer overrun issue".
Cc: Ruiyu Ni <ruiyu.ni@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Star Zeng <star.zeng@intel.com>
Reviewed-by: Ruiyu Ni <ruiyu.ni@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@18562 6f19259b-4bc3-4df7-8a09-765794883524
Update DEC and DSC version to reflect new changes.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Feng Tian <feng.tian@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@18253 6f19259b-4bc3-4df7-8a09-765794883524
Refine the code in LegacyBootMaintUiLib to prevent the potential risk.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Dandan Bi <dandan.bi@intel.com>
Reviewed-by: Qiu Shumin <shumin.qiu@intel.com>
Reviewed-by: Eric Dong <eric.dong@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@18215 6f19259b-4bc3-4df7-8a09-765794883524
This is the legacy part of the old BdsDxe driver.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Eric Dong <eric.dong@intel.com>
Reviewed-by: Ruiyu Ni <ruiyu.ni@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@18112 6f19259b-4bc3-4df7-8a09-765794883524
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Qiu Shumin <shumin.qiu@intel.com>
Signed-off-by: Jeff Fan <jeff.fan@intel.com>
Reviewed-by: Jeff Fan <jeff.fan@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@18084 6f19259b-4bc3-4df7-8a09-765794883524
Reduce reserved memory consumption by page table buffer,
then OS can have more available memory to use.
Take PhysicalAddressBits = 48 and 2MB page granularity as example,
1:1 Virtual to Physical identity mapping page table buffer needs to be
((512 + 1) * 512 + 1) * 4096 = 1075843072 bytes = 0x40201000 bytes.
When BIOS does not support long mode waking vector, only allocate
2 pages (1G page enabled) or 6 pages for 4G page table, and 8 extra
pages to handles > 4G request by page fault.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Star Zeng <star.zeng@intel.com>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@18068 6f19259b-4bc3-4df7-8a09-765794883524
The recent patch titled
IntelFrameworkModulePkg/GenericBdsLib: remove AcpiS3->S3Save() call
has exposed a preexistent bug in the BdsLibBootViaBootOption() function,
and now the IA32 build of OVMF fails with:
In function 'BdsLibBootViaBootOption':
error: 'Status' may be used uninitialized in this function
Namely, we have the following (simplified) data flow:
//
// Status and ImageHandle both start out uninitialized
//
/* ... */
ImageHandle = BdsExpandUsbShortFormDevicePath (DevicePath);
/* ... */
if (ImageHandle == NULL) {
/* ... */
}
if ((ImageHandle == NULL) || (EFI_ERROR(Status))) {
/* ... */
*/
If BdsExpandUsbShortFormDevicePath() returns a non-NULL value, then the
second "if" statement will check Status without the function having
initialized or assigned it.
When BdsExpandUsbShortFormDevicePath() returns non-NULL, Status should be
EFI_SUCCESS; so let us assign it that value up-front.
Note that the bug existed before the patch
IntelFrameworkModulePkg/GenericBdsLib: remove AcpiS3->S3Save() call
That is, the bug was not introduced, only exposed, by the patch -- in the
pre-patch state, although the Status variable was set early and
unconditionally, the error code that it may have carried from the failed
gEfiAcpiS3SaveProtocolGuid lookup had nothing to do with the second "if"
statement above.
Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Jeff Fan <jeff.fan@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Jeff Fan <jeff.fan@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@18061 6f19259b-4bc3-4df7-8a09-765794883524
The AcpiS3->S3Save() call needs to occur before the end-of-DXE event
is signalled. The end-of-DXE event needs to be signalled prior to
invoking any UEFI drivers, applications, or connecting consoles.
This means the call to S3Save() that occurs in BdsLibBootViaBootOption()
violates the ordering constraints, and should be removed. Since it is
the responsibility of the platform BDS to signal the end-of-DXE event,
it should also perform the AcpiS3->S3Save() call at an appropriate time.
Commit message update from Laszlo Ersek <lersek@redhat.com>:
Following Jiewen Yao's idea in
http://thread.gmane.org/gmane.comp.bios.tianocore.devel/16088/focus=16146
platforms that
(1) use this exact instance of GenericBdsLib, *and*
(2) support S3
should now collect the S3 state
(3) in an End-of-Dxe callback in their AcpiS3SaveDxe drivers, *or*
(4) with an explicit AcpiS3->S3Save() call made to their AcpiS3SaveDxe
drivers from their PlatformBdsLib instances.
OvmfPkg, which uses this GenericBdsLib instance, and has its own
AcpiS3SaveDxe fork, follows (3).
Vlv2TbltDevicePkg, which has a GenericBdsLib fork, and uses
IntelFrameworkModulePkg/Universal/Acpi/AcpiS3SaveDxe, follows (4).
There are no other platforms in the public edk2 repository that support
S3.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Jiewen Yao <Jiewen.Yao@intel.com>
[lersek@redhat.com: updated commit message]
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Jeff Fan <jeff.fan@intel.com>
Cc: Jiewen Yao <Jiewen.Yao@intel.com>
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@18036 6f19259b-4bc3-4df7-8a09-765794883524
This commit will resolve the issue brought by r17738.
String = AllocateCopyPool (BufferLen, L"MAC:");
The above using of AllocateCopyPool() will read contents out of the scope
of the constant string. Potential risk for the constant string allocated
at the boundary of memory region.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Hao Wu <hao.a.wu@intel.com>
Reviewed-by: Qiu Shumin <shumin.qiu@intel.com>
Reviewed-by: Jeff Fan <jeff.fan@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@17933 6f19259b-4bc3-4df7-8a09-765794883524
This commit will resolve the issue brought by r17737.
HelpString = AllocateCopyPool (HelpSize, L"Device Path : ");
The above using of AllocateCopyPool() will read contents out of the scope
of the constant string. Potential risk for the constant string allocated
at the boundary of memory region.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Hao Wu <hao.a.wu@intel.com>
Reviewed-by: Qiu Shumin <shumin.qiu@intel.com>
Reviewed-by: Jeff Fan <jeff.fan@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@17932 6f19259b-4bc3-4df7-8a09-765794883524
This commit will resolve the issue brought by r17736.
Str = AllocateCopyPool (MaxLen * sizeof (CHAR16), Str1);
The above using of AllocateCopyPool() will read contents out of the scope
of Str1. Potential risk for Str1 allocated at the boundary of memory
region.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Hao Wu <hao.a.wu@intel.com>
Reviewed-by: Qiu Shumin <shumin.qiu@intel.com>
Reviewed-by: Jeff Fan <jeff.fan@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@17931 6f19259b-4bc3-4df7-8a09-765794883524
This commit will resolve the issue brought by r17735.
StrCatS (StrPercent, sizeof (StrPercent) / sizeof (CHAR16), TmpStr);
The above using of StrCatS will cause ASSERT if TmpStr is longer than
StrPercent. Therefore, StrnCatS is used here to resolve the issue.
Similar scenario is for:
StrCatS (StrTotalMemory, StrTotalMemorySize / sizeof (CHAR16), TmpStr);
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Hao Wu <hao.a.wu@intel.com>
Reviewed-by: Qiu Shumin <shumin.qiu@intel.com>
Reviewed-by: Jeff Fan <jeff.fan@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@17930 6f19259b-4bc3-4df7-8a09-765794883524
This commit will resolve the issue brought by r17733.
StringBuffer1 = AllocateCopyPool (
MAX_STRING_LEN * sizeof (CHAR16),
L"Configuration changed. Reset to apply it Now."
);
The above using of AllocateCopyPool() will read contents out of the scope
of the constant string. Potential risk for the constant string allocated
at the boundary of memory region.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Hao Wu <hao.a.wu@intel.com>
Reviewed-by: Qiu Shumin <shumin.qiu@intel.com>
Reviewed-by: Jeff Fan <jeff.fan@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@17929 6f19259b-4bc3-4df7-8a09-765794883524
Match the size of array GaugeString defined in function
WriteBootToOsPerformanceData() with the size of field 'Token' defined in
struct PERF_DATA in MdeModulePkg\Include\Guid\Performance.h.
Doing so will ensure the size consistency when doing StrCpyS() between
PERF_DATA.Token and GaugeString (like here in Performance.c).
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Hao Wu <hao.a.wu@intel.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@17851 6f19259b-4bc3-4df7-8a09-765794883524
MdeModulePkg has defined gZeroGuid in 'Guid/ZeroGuid.h', therefore, the
gZeroGuid defined in DataHubDxe is redundant.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Hao Wu <hao.a.wu@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
Reviewed-by: Jaben Carsey <jaben.carsey@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@17838 6f19259b-4bc3-4df7-8a09-765794883524
Call S3Ready() whenever the first of the following occurs:
- a driver signals End-of-Dxe,
- a driver calls EFI_ACPI_S3_SAVE_PROTOCOL.S3Save().
S3Ready() already contains a static, function scope "latch" that causes it
to exit early when called for the second time or later.
(At the moment, the only platform in the edk2 tree that includes this
driver is Vlv2TbltDevicePkg. That platform does not signal End-of-Dxe
(yet).)
http://thread.gmane.org/gmane.comp.bios.tianocore.devel/16088/focus=16146
Suggested-by: Yao Jiewen <jiewen.yao@intel.com>
Cc: Yao Jiewen <jiewen.yao@intel.com>
Cc: Jeff Fan <jeff.fan@intel.com>
Cc: David Wei <david.wei@intel.com>
Cc: Tim He <tim.he@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@17805 6f19259b-4bc3-4df7-8a09-765794883524
We are preparing for detaching the S3Ready() functionality from the
EFI_ACPI_S3_SAVE_PROTOCOL.S3Save() protocol member function. Instead, we
will hook the same logic to the End-of-Dxe event group.
The EFI_ACPI_S3_SAVE_PROTOCOL has another member: GetLegacyMemorySize().
According to the documenation,
This function returns the size of the legacy memory (meaning below 1 MB)
that is required during an S3 resume. Before the Framework-based
firmware transfers control to the OS, it has to transition from flat
mode into real mode in case the OS supplies only a real-mode waking
vector. This transition requires a certain amount of legacy memory.
After getting the size of legacy memory below, the caller is responsible
for allocating the legacy memory below 1 MB according to the size that
is returned. The specific implementation of allocating the legacy memory
is out of the scope of this specification.
When EFI_ACPI_S3_SAVE_PROTOCOL.S3Save() is called, the address of the
legacy memory allocated above must be passed to it, in the
LegacyMemoryAddress parameter.
In practice however:
- The S3Ready() function ignores the LegacyMemoryAddress completely.
- No code in the edk2 tree calls
EFI_ACPI_S3_SAVE_PROTOCOL.GetLegacyMemorySize(), ever.
- All callers of EFI_ACPI_S3_SAVE_PROTOCOL.S3Save() in the edk2 tree pass
a NULL LegacyMemoryAddress:
BdsLibBootViaBootOption()
[IntelFrameworkModulePkg/Library/GenericBdsLib/BdsBoot.c]
OnReadyToBoot()
[Vlv2TbltDevicePkg/AcpiPlatform/AcpiPlatform.c]
InstallReadyToLock()
[Vlv2TbltDevicePkg/Library/PlatformBdsLib/BdsPlatform.c]
BdsLibBootViaBootOption()
[Vlv2TbltDevicePkg/Override/IntelFrameworkModulePkg/Library/GenericBdsLib/BdsBoot.c]
For this reason, ASSERT() explicitly that LegacyGetS3MemorySize() is never
called, and that the LegacyMemoryAddress parameter is always NULL.
This fact is important to capture in the code, because in the End-of-Dxe
callback, no LegacyMemoryAddress parameter can be taken. So let's make it
clear that we actually don't even have any use for that parameter.
Cc: Yao Jiewen <jiewen.yao@intel.com>
Cc: Jeff Fan <jeff.fan@intel.com>
Cc: David Wei <david.wei@intel.com>
Cc: Tim He <tim.he@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@17804 6f19259b-4bc3-4df7-8a09-765794883524
So that the driver can work on a certain hardware when a platform module
dynamically changes the PCD value.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ruiyu Ni <ruiyu.ni@intel.com>
Cc: Feng Tian <feng.tian@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@17607 6f19259b-4bc3-4df7-8a09-765794883524
Display engine base on class opcode to detect whether in
front page.Now remove class/subclass and use FormsetGuid
or ClassGuid to judge whether in front page
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Dandan Bi <dandan.bi@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@17590 6f19259b-4bc3-4df7-8a09-765794883524
class/subclass is the obseleted key word in VFR file. It is designed in framework HII.
After convert to UEFI HII, it is not used any longer. Now remove them from VFR
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Dandan Bi <dandan.bi@intel.com>
Reviewed-by: Eric Dong <eric.dong@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@17493 6f19259b-4bc3-4df7-8a09-765794883524
LegacyBootManagerLib is a NULL class library to work with UefiBootManagerLib
providing legacy boot support.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ruiyu Ni <ruiyu.ni@intel.com>
Reviewed-by: Eric Dong <eric.dong@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@17330 6f19259b-4bc3-4df7-8a09-765794883524
IsaSerialDxe creates child handles and wishes to retrieve the name for
those child controllers.
However, in the IsaSerialComponentNameGetControllerName() function, it
directly return EFI_UNSUPPORTED when ChildHandle != NULL.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Hao Wu <hao.a.wu@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
Reviewed-by: Michael Kinney <michael.d.kinney@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@17289 6f19259b-4bc3-4df7-8a09-765794883524
The UmaAddress/UmaSize fields allows the CSM to have writable memory
between the top of the option ROMs and the start of its read-only code segment.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Reviewed-by: Elvin Li <elvin.li@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@17131 6f19259b-4bc3-4df7-8a09-765794883524
For PI spec vol3,
"EFI_SW_DXE_BS_PC_LEGACY_BOOT_EVENT The event with GUID EFI_EVENT_LEGACY_BOOT_GUID was signaled."
"EFI_SW_DXE_BS_PC_READY_TO_BOOT_EVENT The EFI_EVENT_GROUP_READY_TO_BOOT event was signaled."
However, in current code base, they are reported before events were signaled.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Elvin Li <elvin.li@intel.com>
Reviewed-by: Ruiyu Ni <ruiyu.ni@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@17124 6f19259b-4bc3-4df7-8a09-765794883524
Star Zeng
Liming Gao
Eric Dong
Feng Tian
Dandan Bi
Qiu Shumin
Laszlo Ersek
Ard Biesheuvel
Hao Wu
Ruiyu Ni
Jordan Justen
Elvin Li
David Woodhouse