In a form, some new menus may be dynamically inserted between highlight
menu and previous top of screen menu when some question are refreshed.
So the highlight menu and previous top of screen menu perhaps can't be
shown in one page. Existing codes miss to handle this case then will
cause incorrect display.This patch is to fix this display issue.
Cc: Eric Dong <eric.dong@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Dandan Bi <dandan.bi@intel.com>
Reviewed-by: Eric Dong <eric.dong@intel.com>
Current SEC performance data getting code in FirmwarePerformancePei
may get wrong SEC performance data if FirmwarePerformancePei executes
after memory discovered.
And as SecCore has added SecPerformancePpiCallBack to get SEC performance
data and build HOB to convey the SEC performance data to DXE phase.
This patch is to remove the SEC performance data getting code in
FirmwarePerformancePei.
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: Liming Gao <liming.gao@intel.com>
After calling SendForm to enter front page, configuration change in some
driver may require system reset. Currently the reset status is saved in
SendForm level. Then SendForm can return the reset status.
IsResetRequired API also can return the reset status before exiting browser.
It return the reset status in current SendForm level now. But SendForm can
be recursive called by some module.so the reset status in previous SendForm
may be lost. Now change the IsResetRequired API to return the reset info no
matter the reset is caught in any SendForm.
Cc: Eric Dong <eric.dong@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Dandan Bi <dandan.bi@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
Update the comments of ResetSystem() that was missed by
37078045d7 and 28426918f0.
Cc: Ruiyu Ni <ruiyu.ni@intel.com>
Cc: Dandan Bi <dandan.bi@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Star Zeng <star.zeng@intel.com>
Reviewed-by: Dandan Bi <dandan.bi@intel.com>
"The size must be large enough to fit input string supplied in
VariableName buffer" is added in the description for VariableNameSize.
And two cases of EFI_INVALID_PARAMETER are added.
1. The input values of VariableName and VendorGuid are not a name and
GUID of an existing variable.
2. Null-terminator is not found in the first VariableNameSize bytes of
the input VariableName buffer.
This patch is to update code to follow them.
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: Liming Gao <liming.gao@intel.com>
Report Status Code to indicate BDS starts attempting booting
from the UEFI BootOrder list.
Cc: Ruiyu Ni <ruiyu.ni@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Dandan Bi <dandan.bi@intel.com>
Reviewed-by: Ruiyu Ni <ruiyu.ni@intel.com>
Reviewed-by: Sunny Wang <sunnywang@hpe.com>
PI 1.5 spec has minor update to the Data parameter for PEI
GetVariable(), and no real functional behavior change.
The modifier of Data parameter:
OUT VOID *Data
->
OUT VOID *Data OPTIONAL
The comments of Data parameter:
Data Points to the buffer which will hold the returned variable value.
->
Data Points to the buffer which will hold the returned variable value.
May be NULL with a zero DataSize in order to determine the size of the buffer needed.
The patch is to follow the spec to update the implementation.
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: Liming Gao <liming.gao@intel.com>
This path is to refine the PXE boot displayed information so as to
in line with NetworkPkg/UefiPxeBcDxe driver.
Cc: Ye Ting <ting.ye@intel.com>
Cc: Fu Siyuan <siyuan.fu@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Wu Jiaxin <jiaxin.wu@intel.com>
Reviewed-by: Ye Ting <ting.ye@intel.com>
Reviewed-by: Fu Siyuan <siyuan.fu@intel.com>
Currently implementation doesn't accept the input during the user
is trying to select the PXE BootMenu from option 43. This path is
to fix that problem.
Cc: Ye Ting <ting.ye@intel.com>
Cc: Fu Siyuan <siyuan.fu@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Wu Jiaxin <jiaxin.wu@intel.com>
Reviewed-by: Ye Ting <ting.ye@intel.com>
Reviewed-by: Fu Siyuan <siyuan.fu@intel.com>
https://bugzilla.tianocore.org/show_bug.cgi?id=572
Update X64 AsmFuncs.S to resolve a build failure using the
XCODE5 tool chain. This change updates AsmFuncs.S to match
AsmFuncs.asm and AsmFuncs.nasm.
The error generated in XCODE5 build is:
error: invalid instruction mnemonic 'movzxw'
movzxw 8(%rax), %rax
^~~~~~
The correct instruction is
movzwq 8(%rax), %rax
Cc: Star Zeng <star.zeng@intel.com>
Cc: Eric Dong <eric.dong@intel.com>
Cc: Andrew Fish <afish@apple.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Michael D Kinney <michael.d.kinney@intel.com>
Reviewed-by: Andrew Fish <afish@apple.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>
https://bugzilla.tianocore.org/show_bug.cgi?id=572
The ErrorMessage local variable in OnigurumaMatch() should
be type OnigUChar instead of type CHAR8. This resolves
a build failure with the XCODE5 tool chain.
Cc: Andrew Fish <afish@apple.com>
Cc: Star Zeng <star.zeng@intel.com>
Cc: Eric Dong <eric.dong@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Michael D Kinney <michael.d.kinney@intel.com>
Reviewed-by: Andrew Fish <afish@apple.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>
When DynamicEx PCD is only used in PEI code, but not DXE code,
current implementation of DxePcdGetNextTokenSpace does not assign
TmpTokenSpaceBufferCount correctly, but leaves it as initial value,
then DxePcdGetNextTokenSpace may return incorrect token space guid
and status.
This patch is to fix this issue.
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: Liming Gao <liming.gao@intel.com>
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=529
LineWidth of option in funcrion UpdateSkipInfoForMenu and DisplayOneMenu
are inconsistent. Now fix this issue to avoid incorrect UI display.
Cc: Eric Dong <eric.dong@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Dandan Bi <dandan.bi@intel.com>
Reviewed-by: Eric Dong <eric.dong@intel.com>
The RFC1323 which defines the TCP window scale option has been obsoleted by RFC7323.
This patch is to follow the RFC7323 to address the TCP window retraction problem
when a non-zero scale factor is used.
The changes has been test in high packet loss rate network by using HTTP boot and
iSCSI file read/write.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Fu Siyuan <siyuan.fu@intel.com>
Reviewed-by: Wu Jiaxin <jiaxin.wu@intel.com>
Reviewed-by: Ye Ting <ting.ye@intel.com>
Moving Right window edge to the left on sender side without additional check
can lead to the TCP deadlock, when receiver ACKs proper segment, while sender
discards it for future ACK. To prevent this add check if usable window (or
shrink amount in this case) is bigger then receiver's window scale factor.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Andrey Tepin <atepin@kraftway.ru>
Reviewed-by: Fu Siyuan <siyuan.fu@intel.com>
if we already established a iSCSI connection from initiator to target
based on IPv4 stack, after using reconnect -r command, we can not rebuild
the session with the windows target, since the server thought the session
is still exist. This issue is caused by wrong place of acquire ownership of
sock lock which lead the iSCSI can not reset the connection correctly.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Zhang Lubo <lubo.zhang@intel.com>
Cc: Wu Jiaxin <jiaxin.wu@intel.com>
Cc: Ye Ting <ting.ye@intel.com>
Cc: Fu Siyuan <siyuan.fu@intel.com>
Reviewed-by: Wu Jiaxin <jiaxin.wu@intel.com>
Below value indicate whether network address configured successfully
or not:
Network Device List->MAC->IPv4 Network Configuration->Configured.
This patch is to refine its help info.
Cc: Ye Ting <ting.ye@intel.com>
Cc: Fu Siyuan <siyuan.fu@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Wu Jiaxin <jiaxin.wu@intel.com>
Reviewed-by: Ye Ting <ting.ye@intel.com>
When TerminalDxe Start() is called multiple times, the old logic
unconditionally appended the terminal device path candidates to
*Dev (ConInDev/ConOutDev/ErrOutDev), resulting the volatile storage
is full.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ruiyu Ni <ruiyu.ni@intel.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>
An example:
The codes in function Output8bitPixel in Image.c:
OffsetY = BITMAP_LEN_8_BIT ((UINT32) Image->Width, Ypos);
Both Image->Width and Ypos are of type UINT16. They will be promoted to
int (signed) first, and then perform the multiplication defined by macro
BITMAP_LEN_8_BIT. If the result of multiplication between Image->Width and
Ypos exceeds the range of type int, a potential incorrect results
will be assigned to OffsetY.
This commit adds explicit UINT32 type cast for 'Image->Width' to avoid
possible overflow in the int range. And also fix similar issues in
HiiDatabase.
Cc: Eric Dong <eric.dong@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Cc: Hao Wu <hao.a.wu@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Dandan Bi <dandan.bi@intel.com>
Reviewed-by: Hao Wu <hao.a.wu@intel.com>
GCC -fno-builtin option is added into tools_def.template at
90defe7198.
So, there is no need to set it in module INF file.
Cc: Star Zeng <star.zeng@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Liming Gao <liming.gao@intel.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>
https://bugzilla.tianocore.org/show_bug.cgi?id=442
PcdExpression used in INF to control PCD and Source is unsupported feature.
Current sample usage in module INF brings confuse.
Cc: Feng Tian <feng.tian@intel.com>
Cc: Star Zeng <star.zeng@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Liming Gao <liming.gao@intel.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>
The BGRT table has an 8 byte field for the memory address of the image
data, and yet the driver explicitly allocates below 4 GB. This results
in an ASSERT() on systems that do not have any memory below 4 GB to begin
with.
Since neither the PI, the UEFI or the ACPI spec contain any mention of
why this data should reside below 4 GB, replace the allocation call
with an ordinary AllocatePages() call.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Liming Gao <liming.gao@intel.com>
Invocations of EFI_ACPI_TABLE_PROTOCOL::UninstallAcpiTable() may
result in a crash when the value of PcdAcpiExposedTableVersions does
not include EFI_ACPI_TABLE_VERSION_1_0B.
The reason is that EFI_ACPI_TABLE_PROTOCOL::InstallAcpiTable() will
only populate the Rsdt1/Rsdt3 pointers when EFI_ACPI_TABLE_VERSION_1_0B
is set, whereas EFI_ACPI_TABLE_PROTOCOL::UninstallAcpiTable() will
invoke PublishTables with EFI_ACPI_TABLE_VERSION_1_0B alawys set,
resulting in a NULL pointer dereference of the Rsdt1/Rsdt3 pointers.
So take PcdAcpiExposedTableVersions into account for UninstallAcpiTable
as well.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Star Zeng <star.zeng@intel.com>
RamDiskDxe installs the RamDiskAcpiCheck() Ready To Boot callback
function. If EFI_ACPI_TABLE_PROTOCOL and/or EFI_ACPI_SDT_PROTOCOL are not
found, then informational messages are logged, and the RAM disks are not
published to the (nonexistent) NFIT table.
The logic is fine, but the info messages are not concatenated correctly
from multiple string literals -- the second parts are passed as (unused)
arguments to DEBUG(). Fix the typos.
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Feng Tian <feng.tian@intel.com>
Cc: Hao Wu <hao.a.wu@intel.com>
Cc: Leif Lindholm <leif.lindholm@linaro.org>
Cc: Star Zeng <star.zeng@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Feng Tian <feng.tian@intel.com>
Reviewed-by: Hao Wu <hao.a.wu@intel.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>
198a46d768 improved the DSDT and X_DSDT
fields mutual exclusion by checking FADT revision, but that breaks
some OS that has assumption to only consume X_DSDT field even the
DSDT address is < 4G.
To have better compatibility, this patch is to update the code to not
make FADT.{DSDT,X_DSDT} mutual exclusion, but always set both DSDT and
X_DSDT fields in the FADT when the DSDT address is < 4G.
Cc: Laszlo Ersek <lersek@redhat.com>
Cc: Jeff Fan <jeff.fan@intel.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Star Zeng <star.zeng@intel.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Tested-by: Jeff Fan <jeff.fan@intel.com>
The original logic assumes GOP hande is son of PCI handle but it
is not always true.
Below wordings are from UEFI Spec:
If a graphics device supports multiple frame buffers, then
handles for the frame buffers must be created first, and then the
handles for the video output devices can be created as children of
the frame buffer handles.
So the GOP handle could be grandson of the PCI handle.
EfiBootManagerGetGopDevicePath(VideoController) is used to fix
this bug.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ruiyu Ni <ruiyu.ni@intel.com>
Reviewed-by: Jeff Fan <jeff.fan@intel.com>
v2: Handle error case in SockCreateChild and fix typo issue
when we destroy the socket Sock and its associated
protocol control block, we need to first close the
parent protocol, then remove the protocol from childHandle
and last to free any data structures that allocated in
CreateChild. But currently, we free the socket data
(Socket ConfigureState) before removing the protocol
form the childhandle. So if the up layer want to send the
tcp reset packet in it's driver binding stop function, it will failed.
The IpInstance destroy state is redundant and may cause
ip transmit failed if up layer want to send ip packet.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Zhang Lubo <lubo.zhang@intel.com>
Cc: Wu Jiaxin <jiaxin.wu@intel.com>
Cc: Ye Ting <ting.ye@intel.com>
Cc: Fu Siyuan <siyuan.fu@intel.com>
Reviewed-by: Ye Ting <ting.ye@intel.com>
Reviewed-by: Fu Siyuan <siyuan.fu@intel.com>
Reviewed-by: Wu Jiaxin <jiaxin.wu@intel.com>
v2:
* Add the check in Ip4Config2SetDefaultIf to avoid the DHCP configuration
case.
Ip4config2 doesn't check the validity of Ip/Netmask pair, which
leads to the invalid combination of Ip and Netmask setting.
This patch is to resolve the issue.
Cc: Hegde Nagaraj P <nagaraj-p.hegde@hpe.com>
Cc: Subramanian Sriram <sriram-s@hpe.com>
Cc: Ye Ting <ting.ye@intel.com>
Cc: Fu Siyuan <siyuan.fu@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Wu Jiaxin <jiaxin.wu@intel.com>
Reviewed-by: Sriram Subramanian <sriram-s@hpe.com>
Reviewed-by: Hegde Nagaraj P <nagaraj-p.hegde@hpe.com>
Current PI spec has no clear description about whether the
SkuId could be changed multiple times or not during one boot.
If the SkuId could be changed multiple times during one boot,
different modules may get inconsistent PCD values.
And DynamicHii PCD maps to UEFI variable, once one DynamicHii
PCD(UEFI variable) is set for one SkuId, then the PCD value
will be always from UEFI variable but not PCD database, even
the SkuId is set to other value.
This patch is to update PCD drivers to allow SkuId to be
changed only once during one boot.
Cc: Liming Gao <liming.gao@intel.com>
Cc: Michael Kinney <michael.d.kinney@intel.com>
Cc: Feng Tian <feng.tian@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Star Zeng <star.zeng@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
The ACPI specification, up to and including revision 5.1 Errata A, allows
the DSDT and X_DSDT fields to be both set in the FADT. (Obviously, this
only makes sense if the DSDT address is representable in 4 bytes.)
Starting with 5.1 Errata B, specifically for Mantis 1393
<https://mantis.uefi.org/mantis/view.php?id=1393>, the spec requires at
most one of DSDT and X_DSDT to be set to a nonzero value.
MdeModulePkg/AcpiTableDxe handles this mutual exclusion somewhat
inconsistently.
- If the caller of EFI_ACPI_TABLE_PROTOCOL.InstallAcpiTable() installs the
tables in "DSDT, FADT" order, then we enforce the exclusion between the
DSDT and X_DSDT fields:
DSDT under 4GB FADT.DSDT FADT.X_DSDT [VARIANT B]
-------------- --------- -----------
yes set clear
no clear set
This behavior conforms to 5.1 Errata B. (And it's not required by
earlier versions of the spec.)
- If the caller passes in the tables in "FADT, DSDT" relative order, then
we do not enforce the exclusion:
DSDT under 4GB FADT.DSDT FADT.X_DSDT [VARIANT A]
-------------- --------- -----------
yes set set
no clear set
This satisfies 5.1 Errata A and earlier, but breaks 5.1 Errata B and
later.
Unify the handling of both relative orders. In particular, check the major
and minor version numbers in the FADT. If the FADT version is strictly
before 5.1, then implement [VARIANT A]. If the FADT version is equal to or
larger than 5.1, then implement [VARIANT B].
We make three observations:
- We can't check the FADT table version precisely against "5.1 Errata B";
erratum levels are not captured in the table. We err in the safe
direction, namely we enforce the exclusion for "5.1" and "5.1 Errata A".
- The same applies to "6.0" versus "6.0 Errata A". Because we cannot
distinguish these two, we consider "6.0" to be "equal to or larger than
5.1", and apply [VARIANT B], enforcing the exclusion.
- While a blanket [VARIANT B] would be simpler, there is a significant
benefit to [VARIANT A], under the spec versions that permit it:
compatibility with a wider range of OSPMs (typically, older ones).
For example, Igor reported about a "DELL R430 system with rev4 FADT
where DSDT and X_DSDT are pointing to the same address". Michael also
reported about several systems that exhibit the same.
Regression tested with the following KVM guests (QEMU built at
ata0def594286d, "Merge remote-tracking branch
'remotes/bonzini/tags/for-upstream' into staging", 2017-01-30):
- OVMF: boot and S3 suspend/resume
- Ia32, Q35, SMM
- Fedlet 20141209
- Ia32X64, Q35, SMM
- Fedora 22
- Windows 7
- Windows 8.1
- Windows 10
- Windows Server 2008 R2
- Windows Server 2012 R2
- Windows Server 2016 Tech Preview 4
- X64, I440FX, no SMM
- Fedora 24
- RHEL-6.7
- RHEL-7.2-ish
- ArmVirtQemu: boot test with virtio-gpu
- AARCH64
- Fedora 24
- RHELSA-7.3
- openSUSE Tumbleweed (4.8.4-based)
This change is connected to ASWG ticket
<https://mantis.uefi.org/mantis/view.php?id=1757>, which is now
closed/fixed.
Cc: Al Stone <ahs3@redhat.com>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Feng Tian <feng.tian@intel.com>
Cc: Igor Mammedov <imammedo@redhat.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Leo Duran <leo.duran@amd.com>
Cc: Michael Tsirkin <mtsirkin@redhat.com>
Cc: Phil Dennis-Jordan <phil@philjordan.eu>
Cc: Star Zeng <star.zeng@intel.com>
Reported-by: Phil Dennis-Jordan <phil@philjordan.eu>
Suggested-by: Igor Mammedov <imammedo@redhat.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Phil Dennis-Jordan <phil@philjordan.eu>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>
This patch incurs no functional changes, it just removes some whitespace,
and also makes sure we always assign
AcpiTableInstance->Fadt3->Dsdt
first, and
AcpiTableInstance->Fadt3->XDsdt
second. The goal is to separate the syntactic changes from the functional
changes implemented by the next patch.
Cc: Al Stone <ahs3@redhat.com>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Feng Tian <feng.tian@intel.com>
Cc: Igor Mammedov <imammedo@redhat.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Leo Duran <leo.duran@amd.com>
Cc: Michael Tsirkin <mtsirkin@redhat.com>
Cc: Phil Dennis-Jordan <phil@philjordan.eu>
Cc: Star Zeng <star.zeng@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Feng Tian <feng.tian@intel.com>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>
There are cases that the operands of an expression are all with rank less
than UINT64/INT64 and the result of the expression is explicitly cast to
UINT64/INT64 to fit the target size.
An example will be:
UINT32 a,b;
// a and b can be any unsigned int type with rank less than UINT64, like
// UINT8, UINT16, etc.
UINT64 c;
c = (UINT64) (a + b);
Some static code checkers may warn that the expression result might
overflow within the rank of "int" (integer promotions) and the result is
then cast to a bigger size.
The commit refines codes by the following rules:
1). When the expression is possible to overflow the range of unsigned int/
int:
c = (UINT64)a + b;
2). When the expression will not overflow within the rank of "int", remove
the explicit type casts:
c = a + b;
3). When the expression will be cast to pointer of possible greater size:
UINT32 a,b;
VOID *c;
c = (VOID *)(UINTN)(a + b); --> c = (VOID *)((UINTN)a + b);
4). When one side of a comparison expression contains only operands with
rank less than UINT32:
UINT8 a;
UINT16 b;
UINTN c;
if ((UINTN)(a + b) > c) {...} --> if (((UINT32)a + b) > c) {...}
For rule 4), if we remove the 'UINTN' type cast like:
if (a + b > c) {...}
The VS compiler will complain with warning C4018 (signed/unsigned
mismatch, level 3 warning) due to promoting 'a + b' to type 'int'.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Hao Wu <hao.a.wu@intel.com>
Reviewed-by: Feng Tian <feng.tian@intel.com>
For pointer subtraction, the result is of type "ptrdiff_t". According to
the C11 standard (Committee Draft - April 12, 2011):
"When two pointers are subtracted, both shall point to elements of the
same array object, or one past the last element of the array object; the
result is the difference of the subscripts of the two array elements. The
size of the result is implementation-defined, and its type (a signed
integer type) is ptrdiff_t defined in the <stddef.h> header. If the result
is not representable in an object of that type, the behavior is
undefined."
In our codes, there are cases that the pointer subtraction is not
performed by pointers to elements of the same array object. This might
lead to potential issues, since the behavior is undefined according to C11
standard.
Also, since the size of type "ptrdiff_t" is implementation-defined. Some
static code checkers may warn that the pointer subtraction might underflow
first and then being cast to a bigger size. For example:
UINT8 *Ptr1, *Ptr2;
UINTN PtrDiff;
...
PtrDiff = (UINTN) (Ptr1 - Ptr2);
The commit will refine the pointer subtraction expressions by casting each
pointer to UINTN first and then perform the subtraction:
PtrDiff = (UINTN) Ptr1 - (UINTN) Ptr2;
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Hao Wu <hao.a.wu@intel.com>
Acked-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Feng Tian <feng.tian@intel.com>
Measure DBT into PCR[7] when it is updated between initial measure
if present and not empty. by following TCG PC Client PFP 00.49
Previous patch for PCR[7] DBT part is overrode.
dc9bd6ed28
Cc: Star Zeng <star.zeng@intel.com>
Cc: Yao Jiewen <jiewen.yao@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Chao Zhang <chao.b.zhang@intel.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>
Reviewed-by: Yao Jiewen <jiewen.yao@intel.com>
To handle the deprecation of PrintLib APIs UnicodeValueToString and
AsciiValueToString by subsequent commits, the commit refines the logic for
the implemetation of the UnicodeValueToString and AsciiValueToString
services in EFI_PRINT2_PROTOCOL.
When the macro DISABLE_NEW_DEPRECATED_INTERFACES is defined (indicating
the deprecation of the PrintLib APIs), the above two services will ASSERT
and will return zero to reflect not being supported.
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>
It is the follow up of commits 51f0ceb..9e32e97 to replace
AsciiValueToString/UnicodeValueToString with
AsciiValueToStringS/UnicodeValueToStringS.
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>
This PCD holds the address mask for page table entries when memory
encryption is enabled on AMD processors supporting the Secure Encrypted
Virtualization (SEV) feature.
This module updates the under-4GB page tables configured by the S3-Resume
code in UefiCpuPkg/Universal/Acpi/S3Resume2Pei. The mask is saved at module
start (ScriptExecute.c), and applied when tables are expanded on-demand by
page-faults above 4GB's (SetIdtEntry.c).
CC: Jeff Fan <jeff.fan@intel.com>
Cc: Feng Tian <feng.tian@intel.com>
Cc: Star Zeng <star.zeng@intel.com>
Cc: Laszlo Ersek <lersek@redhat.com>
Cc: Brijesh Singh <brijesh.singh@amd.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Leo Duran <leo.duran@amd.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>
This PCD holds the address mask for page table entries when memory
encryption is enabled on AMD processors supporting the Secure Encrypted
Virtualization (SEV) feature.
The mask is applied when 4GB tables are created (UefiCapsule.c), and when
the tables are expanded on-demand by page-faults above 4GB's (X64Entry.c).
Cc: Feng Tian <feng.tian@intel.com>
Cc: Star Zeng <star.zeng@intel.com>
Cc: Laszlo Ersek <lersek@redhat.com>
Cc: Brijesh Singh <brijesh.singh@amd.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Leo Duran <leo.duran@amd.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>
Dandan Bi
Star Zeng
Hao Wu
Ruiyu Ni
Jiaxin Wu
Fu Siyuan
Michael Kinney
Zhang, Lubo
Jeff Fan
Liming Gao
Ard Biesheuvel
Laszlo Ersek
Zhang, Chao B
Leo Duran