Redfish common structures are moved to RedfishServiceData.h. Remove
them from RedfishLib.h
Signed-off-by: Nickle Wang <nicklew@nvidia.com>
Cc: Abner Chang <abner.chang@amd.com>
Cc: Igor Kulchytskyy <igork@ami.com>
Cc: Nick Ramirez <nramirez@nvidia.com>
Reviewed-by: Abner Chang <abner.chang@amd.com>
Reviewed-by: Igor Kulchytskyy <igork@ami.com>
RedfishHttpLib is a wrapper library for Redfish feature drivers to
call Redfish HTTP Protocol easily.
Signed-off-by: Nickle Wang <nicklew@nvidia.com>
Cc: Abner Chang <abner.chang@amd.com>
Cc: Igor Kulchytskyy <igork@ami.com>
Cc: Nick Ramirez <nramirez@nvidia.com>
Reviewed-by: Abner Chang <abner.chang@amd.com>
Reviewed-by: Igor Kulchytskyy <igork@ami.com>
Introduce Redfish HTTP protocol to improve Redfish performance
and communication stability between BIOS and Redfish service.
- Feature drivers often query same Redfish resource multiple
times for different purpose. Implement HTTP cache mechanism to
improve HTTP GET performance. "UseCache" parameter is provided
if application likes to send HTTP GET request to Redfish service
without using cache data.
- This driver will retire stale cache data automatically when
application modify Redfish resource at service side.
- PCD PcdHttpCacheDisabled is used to disable cache mechanism in
this driver for debugging purpose.
- PCD PcdRedfishServiceContentEncoding is used to enable content
encoding while sending data to Redfish service.
- Redfish HTTP protocol also implement retry mechanism to retry
HTTP request when BIOS receive unexpected response from Redfish service.
This function helps BIOS Redfish to finish its job as much as possible.
- PCDs are defined to control how many times BIOS will retry the
request and how many time BIOS will wait between retries.
Signed-off-by: Nickle Wang <nicklew@nvidia.com>
Co-authored-by: Igor Kulchytskyy <igork@ami.com>
Cc: Abner Chang <abner.chang@amd.com>
Cc: Igor Kulchytskyy <igork@ami.com>
Cc: Nick Ramirez <nramirez@nvidia.com>
Reviewed-by: Abner Chang <abner.chang@amd.com>
Reviewed-by: Igor Kulchytskyy <igork@ami.com>
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=4666
This commit fixes the issue reported through BZ4666.
The Syntax warning related to invalid escape sequence
for \C is seen on Windows OS based builds of edk2 sources.
On Windows the path seperator needs to prefixed with \
so essentially we need to use \\ as path seperator.
Cc: Rebecca Cran <rebecca@bsdio.com>
Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Laszlo Ersek <lersek@redhat.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Bob Feng <bob.c.feng@intel.com>
Cc: Yuwei Chen <yuwei.chen@intel.com>
Cc: Jayaprakash N <n.jayaprakash@intel.com>
Signed-off-by: Jayaprakash N <n.jayaprakash@intel.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Rebecca Cran <rebecca@bsdio.com>
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=4679
Update PatchCheck.py to evaluate all the files modified in each commit
and generate an error if:
* A commit adds/modifies files in multiple package directories
* A commit adds/modifies files in multiple non-package directories
* A commit adds/modifies files in both a package and a non-package
directory
* A commit deletes files from multiple package directories
* A commit deletes files from multiple non-package directories
* A commit deletes files from both a package and a non-package
directory
Modifications to files in the root of the repository are not
evaluated.
This check is skipped if PatchCheck.py is run on a patch file or
input from stdin because this multiple package commit check depends
on information from a git repository.
If --ignore-multi-package option is set, then reduce the multiple
package commit check from an error to a warning for all commits in
the commit range provided to PatchCheck.py.
Add check for a 'Continuous-integration-options:' commit message
tag that allows one or more options to be specified at the individual
commit scope to enable/disable continuous integration checks. This
tag must start at the beginning of a commit message line and may
appear more than once in a commit message.
Add support for a Continuous-integration-options tag value of
'PatchCheck.ignore-multi-package' that reduces the multiple package
commit check from an error to a warning for the specific commits that
specify this option. Example:
Continuous-integration-options: PatchCheck.ignore-multi-package
The set of packages are found by searching for DEC files in a git
repository. The list of DEC files in a git repository is collected
with the following git command:
git ls-files *.dec
The set of files added/modified by each commit is found using the
following git command:
git diff-tree --no-commit-id --name-only --diff-filter=AM -r <commit>
The set of files deleted by each commit is found using the
following git command:
git diff-tree --no-commit-id --name-only --diff-filter=D -r <commit>
Cc: Rebecca Cran <rebecca@bsdio.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Bob Feng <bob.c.feng@intel.com>
Cc: Yuwei Chen <yuwei.chen@intel.com>
Cc: Michael Kubacki <mikuback@linux.microsoft.com>
Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Leif Lindholm <quic_llindhol@quicinc.com>
Signed-off-by: Michael D Kinney <michael.d.kinney@intel.com>
Reviewed-by: Michael Kubacki <michael.kubacki@microsoft.com>
Reviewed-by: Rebecca Cran <rebecca@bsdio.com>
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=4694
If no Cc tags are detected in a commit message, then generate an
error. All patches sent for review are required to provide the set
of maintainers and reviewers responsible for the directories/files
modified. The set of maintainers and reviewers are documented in
Maintainers.txt and can be retrieved using the script
BaseTools/Scripts/GetMaintainer.py.
Cc: Rebecca Cran <rebecca@bsdio.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Bob Feng <bob.c.feng@intel.com>
Cc: Yuwei Chen <yuwei.chen@intel.com>
Cc: Michael Kubacki <mikuback@linux.microsoft.com>
Signed-off-by: Michael D Kinney <michael.d.kinney@intel.com>
Reviewed-by: Michael Kubacki <michael.kubacki@microsoft.com>
Reviewed-by: Rebecca Cran <rebecca@bsdio.com>
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=4693
Commit signatures are checked and error messages are logged but
errors are not captured and returned from find_signatures() in the
CommitMessageCheck class. This causes signature errors to be
silently ignored by CI.
Update logic in CommitMessageCheck class to return errors
detected in commit message signatures.
Cc: Rebecca Cran <rebecca@bsdio.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Bob Feng <bob.c.feng@intel.com>
Cc: Yuwei Chen <yuwei.chen@intel.com>
Cc: Michael Kubacki <mikuback@linux.microsoft.com>
Signed-off-by: Michael D Kinney <michael.d.kinney@intel.com>
Reviewed-by: Michael Kubacki <michael.kubacki@microsoft.com>
Reviewed-by: Rebecca Cran <rebecca@bsdio.com>
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=4680
* Reject patches that match Author email "devel@edk2.groups.io"
* Update the current check for " via Groups.Io" to perform a
case insensitive match. It appears that groups.io has changed the
format of this string to use all lower case.
Cc: Rebecca Cran <rebecca@bsdio.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Bob Feng <bob.c.feng@intel.com>
Cc: Yuwei Chen <yuwei.chen@intel.com>
Signed-off-by: Michael D Kinney <michael.d.kinney@intel.com>
Reviewed-by: Rebecca Cran <rebecca@bsdio.com>
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
There have been many changes since EfiLoadDxe.cmm was last updated in
2011. The EFI_SYSTEM_TABLE can no longer be found by scanning memory on
4KB boundaries, so require users pass in its address instead. Update
various offsets so that the debug information can be found and loaded
with a recent version of TRACE32.
Signed-off-by: Rebecca Cran <rebecca@os.amperecomputing.com>
Reviewed-by: Leif Lindholm <quic_llindhol@quicinc.com>
Needed to avoid running out of memory when booting
with a large (~2048) number of vcpus.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Message-Id: <20240214104504.2931339-3-kraxel@redhat.com>
Update entry point library for Arm to use the new architecture independent
StandaloneMmCpu driver.
Signed-off-by: Tuan Phan <tphan@ventanamicro.com>
Reviewed-by: levi.yun <yeoreum.yun@arm.com>
Reviewed-by: Sami Mujawar <sami.mujawar@arm.com>
StandaloneMmCpu now can supports more architectures like RISC-V besides
ARM/AARCH64.
Signed-off-by: Tuan Phan <tphan@ventanamicro.com>
Reviewed-by: levi.yun <yeoreum.yun@arm.com>
Reviewed-by: Sami Mujawar <sami.mujawar@arm.com>
BZ #: 4711
- Add mode debug messages.
- Remove the references of "Redfish" from this driver.
As REST JSON C Structure was not designed for Redfish only.
Any RESTful applications can register the converter and
provide JSON-C structure conversions through
EFI_REST_JSON_STRUCTURE_PROTOCOL. Therefore this driver
shouldn't have a dependency on Redfish package and the
references of "Redfish" terminology.
- Fix the missing parameter of DEBUG macros used in this
driver.
Signed-off-by: Abner Chang <abner.chang@amd.com>
Cc: Nickle Wang <nicklew@nvidia.com>
Cc: Igor Kulchytskyy <igork@ami.com>
Reviewed-by: Nickle Wang <nicklew@nvidia.com>
Resolves a new CodeQL error due to the value being incremented in the
loop being a narrower type than the variable it is being compared
against.
The variable is changed to a UINT32 type so it has the same width as
the type it is being compared against.
Issue explanation: In a loop condition, comparison of a value of a
narrow type with a value of a wide type may result in unexpected
behavior if the wider value is sufficiently large (or small). This
is because the narrower value may overflow. This can lead to an
infinite loop.
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Gua Guo <gua.guo@intel.com>
Cc: Prakashan Krishnadas Veliyathuparambil <krishnadas.veliyathuparambil.prakashan@intel.com>
Cc: K N Karthik <karthik.k.n@intel.com>
Signed-off-by: Michael Kubacki <michael.kubacki@microsoft.com>
Reviewed-by: Gua Guo <gua.guo@intel.com>
After finding the BSP Number return the result instead of
continuing to loop over the remaining processors.
Suggested-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-Id: <20240222160106.686484-7-kraxel@redhat.com>
Reviewed-by: Ray Ni <ray.ni@intel.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
[lersek@redhat.com: s/ASSERT (FALSE)/ASSERT_EFI_ERROR (EFI_NOT_FOUND)/ [Ray]]
Add support for splitting Hand-Off data into multiple HOBs.
This is required for VMs with thousands of CPUs.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-Id: <20240222160106.686484-6-kraxel@redhat.com>
Reviewed-by: Ray Ni <ray.ni@intel.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
[lersek@redhat.com: define one local variable per line [Ray]]
Loop over all MP_HAND_OFF HOBs instead of expecting a single HOB
covering all CPUs in the system.
Add a new FirstMpHandOff variable, which caches the first HOB body for
faster lookups. It is also used to check whenever MP_HAND_OFF HOBs are
present. Using the MpHandOff pointer for that does not work any more
because the variable will be NULL at the end of HOB loops.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Ray Ni <ray.ni@intel.com>
Message-Id: <20240222160106.686484-5-kraxel@redhat.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Rename the MpHandOff parameter to FirstMpHandOff. Add loops so the
function inspects all HOBs present in the system.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Ray Ni <ray.ni@intel.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Message-Id: <20240222160106.686484-4-kraxel@redhat.com>
Rename the MpHandOff parameter to FirstMpHandOff. Add a loop so the
function inspects all HOBs present in the system.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Ray Ni <ray.ni@intel.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Message-Id: <20240222160106.686484-3-kraxel@redhat.com>
Rename the function to GetNextMpHandOffHob(), add MP_HAND_OFF parameter.
When called with NULL pointer return the body of the first HOB, otherwise
return the next in the chain.
Also add the function prototype to the MpLib.h header file.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-Id: <20240222160106.686484-2-kraxel@redhat.com>
Reviewed-by: Ray Ni <ray.ni@intel.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Checks that an offset used to access array elements is within the
expected range before accessing the array item.
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Rebecca Cran <rebecca@bsdio.com>
Cc: Richard Ho <richardho@ami.com>
Signed-off-by: Michael Kubacki <michael.kubacki@microsoft.com>
Reviewed-by: Liming Gao <gaoliming@byosoft.com.cn>
1. Refer to Uefi spec 2.10 section 4.3.1, Updated the comments of
EFI_SYSTEM_TABLE to satisfy ConIn/ConOut/StdErr requirements.
2. Refer to Uefi spec 2.10 section 13.3.3, Add a new retval
EFI_UNSUPPORTED to EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL.ReadKeyStrokeEx
and EFI_SIMPLE_TEXT_INPUT_PROTOCOL.ReadKeyStroke().
Signed-off-by: Junfeng Guan <junfengx.guan@intel.com>
Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Zhiguang Liu <zhiguang.liu@intel.com>
Reviewed-by: Liming Gao <gaoliming@byosoft.com.cn>
The FACS may still exist when the reduced hardware flag is set in FADT;
it is optional. Since it contains the hardware signature field which
indicates that a hibernated system should boot cleanly instead of
attempting to resume, a platform may choose to expose it. Propagate it
correctly.
Also avoid a NULL pointer dereference if the platform doesn't provide
a DSDT.
Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Message-Id: <881dd0a2558ecbdfa02c844722d8a1103ab97ab3.camel@infradead.org>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
[lersek@redhat.com: uncrustify]
The EFI Shell allows to bypass secure boot, do not allow
to include the shell in the firmware images of secure boot
enabled builds.
This prevents misconfigured downstream builds.
Ref: https://bugs.launchpad.net/ubuntu/+source/edk2/+bug/2040137
Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=4641
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Acked-by: Jiewen Yao <Jiewen.yao@intel.com>
Message-Id: <20240222101358.67818-13-kraxel@redhat.com>
Place the EFI shell as EFI/BOOT/BOOT{ARCH}.EFI on the virtual drive.
This allows the "run to shell" CI test case to work even in case the
shell is not included in the firmware image.
This is needed because an followup patch will exclude the shell from
secure boot enabled firmware images.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Acked-by: Laszlo Ersek <lersek@redhat.com>
Acked-by: Jiewen Yao <Jiewen.yao@intel.com>
Message-Id: <20240222101358.67818-12-kraxel@redhat.com>
Note that IntelTdxX64 is compiled without network support, so thanks to
the network conditionals in the include files the build result (network
shell commands excluded) should be identical before and after the patch.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Acked-by: Laszlo Ersek <lersek@redhat.com>
Acked-by: Jiewen Yao <Jiewen.yao@intel.com>
Message-Id: <20240222101358.67818-10-kraxel@redhat.com>
Note that AmdSevX64 is compiled without network support, so thanks to
the network conditionals in the include files the build result (network
shell commands excluded) should be identical before and after the patch.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Acked-by: Laszlo Ersek <lersek@redhat.com>
Acked-by: Jiewen Yao <Jiewen.yao@intel.com>
Message-Id: <20240222101358.67818-9-kraxel@redhat.com>
Needed to make the new 'varpolicy' EFI shell command
actually available in the OVMF firmware builds.
Fixes: fe6cd1c187 ("OvmfPkg: Add varpolicy shell command")
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Acked-by: Jiewen Yao <Jiewen.yao@intel.com>
Message-Id: <20240222101358.67818-6-kraxel@redhat.com>
Add NETWORK_ENABLE conditionals for the components
which need network support.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Acked-by: Jiewen Yao <Jiewen.yao@intel.com>
Message-Id: <20240222101358.67818-5-kraxel@redhat.com>
Move EFI Shell libraries from OvmfPkgX64.dsc to
the new ShellComponents.dsc.inc include file.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Acked-by: Jiewen Yao <Jiewen.yao@intel.com>
Message-Id: <20240222101358.67818-3-kraxel@redhat.com>
Move EFI Shell components from OvmfPkgX64.dsc to
the new ShellComponents.dsc.inc include file.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Acked-by: Jiewen Yao <Jiewen.yao@intel.com>
Message-Id: <20240222101358.67818-2-kraxel@redhat.com>
Current implementation makes assumptions about arch it will be built
for. Need to make it more generic to add follow up support for RISCV.
Right now it does not build for RV until relevant dsc file is available.
Cc: Guo Dong <guo.dong@intel.com>
Cc: Sean Rhodes <sean@starlabs.systems>
Cc: James Lu <james.lu@intel.com>
Reviewed-by: Gua Guo <gua.guo@intel.com>
Signed-off-by: Dhaval Sharma <dhaval@rivosinc.com>
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=4614
About the IsModified, current function doesn't consider that hardware
also may change the pagetable. The issue is that in the first call of
internal function PageTableLibMapInLevel, the function assume page
table is not changed, and add ASSERT to check. But hardware may change
the page table, which cause the ASSERT happens.
Fix the issue by adding addtional condition to only check if the page
table is changed when the software want to modify the page table.
Also, add more comment to explain this behavior.
Reviewed-by: Ray Ni <ray.ni@intel.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Cc: Rahul Kumar <rahul1.kumar@intel.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Crystal Lee <CrystalLee@ami.com.tw>
Cc: Pedro Falcato <pedro.falcato@gmail.com>
Signed-off-by: Zhiguang Liu <zhiguang.liu@intel.com>
The purpose of writing CR3 in ConvertMemoryPageToNotPresent is just
to flush TLB, because CR3 won't be changed in function
ConvertMemoryPageToNotPresent.
After ConvertMemoryPageToNotPresent, there is always a flush TLB
function. Also, because ConvertMemoryPageToNotPresent in called in a
loop, to improve performance, there is no need to flush TLB
inside ConvertMemoryPageToNotPresent. Just flushing TLB after the loop
is enough.
Reviewed-by: Ray Ni <ray.ni@intel.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Cc: Rahul Kumar <rahul1.kumar@intel.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Zhiguang Liu <zhiguang.liu@intel.com>
PageTableMap() only modifies the PageTable root pointer when creating from zero.
Explicitly explain it in function header.
Reviewed-by: Ray Ni <ray.ni@intel.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Cc: Rahul Kumar <rahul1.kumar@intel.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Zhiguang Liu <zhiguang.liu@intel.com>
This patch is to check BspIndex first before lock cmpxchg operation.
If BspIndex has not been set, then do the lock cmpxchg, otherwise,
the APs don't need to lock cmpxchg the BspIndex value since the BSP
election has been done. It's the optimization to lower the resource
contention caused by the atomic compare exchange operation, so as to
improve the SMI performance for BSP election.
Cc: Ray Ni <ray.ni@intel.com>
Cc: Laszlo Ersek <lersek@redhat.com>
Cc: Eric Dong <eric.dong@intel.com>
Cc: Zeng Star <star.zeng@intel.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Rahul Kumar <rahul1.kumar@intel.com>
Cc: Kinney Michael D <michael.d.kinney@intel.com>
Signed-off-by: Jiaxin Wu <jiaxin.wu@intel.com>
Reviewed-by: Ray Ni <ray.ni@intel.com>
Use MAX_UINT32 directly instead of typecasting from signed
to unsigned value.
Cc: Ray Ni <ray.ni@intel.com>
Cc: Laszlo Ersek <lersek@redhat.com>
Cc: Eric Dong <eric.dong@intel.com>
Cc: Zeng Star <star.zeng@intel.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Rahul Kumar <rahul1.kumar@intel.com>
Cc: Kinney Michael D <michael.d.kinney@intel.com>
Signed-off-by: Jiaxin Wu <jiaxin.wu@intel.com>
Reviewed-by: Ray Ni <ray.ni@intel.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=4682
Fixes: 725acd0b9c
Before commit 725acd0b9c ("UefiCpuPkg: Avoid assuming only one
smmbasehob", 2023-12-12), PiCpuSmmEntry() used to look up
"gSmmBaseHobGuid", and allocate "mCpuHotPlugData.SmBase" regardless of the
GUID's presence:
> - mCpuHotPlugData.SmBase = (UINTN *)AllocatePool (sizeof (UINTN) * mMaxNumberOfCpus);
> - ASSERT (mCpuHotPlugData.SmBase != NULL);
After commit 725acd0b9c, PiCpuSmmEntry() -> GetSmBase() would allocate
"mCpuHotPlugData.SmBase" only on the success path, and no allocation would
be performed on *any* of the error paths.
This caused a problem: if "mCpuHotPlugData.SmBase" was left NULL because
the GUID HOB was missing, PiCpuSmmEntry() would still be supposed to
allocate "mCpuHotPlugData.SmBase", just like earlier. However, because
commit 725acd0b9c conflated the two possible error modes (out of SMRAM,
and no GUID HOB), PiCpuSmmEntry() could not decide whether it should
allocate "mCpuHotPlugData.SmBase", or not. Currently, we never allocate if
GetSmBase() fails -- for any reason --, which means that on platforms that
don't produce the GUID HOB, "mCpuHotPlugData.SmBase" is left NULL, leading
to null pointer dereferences later, in PiCpuSmmEntry().
Now that a prior patch in the series distinguishes the two error modes
from each other, we can tell exactly when the GUID HOB is not found, and
reinstate the earlier "mCpuHotPlugData.SmBase" allocation for that case.
(With an actual error check thrown in, in addition to the original
"assertion".)
Cc: Dun Tan <dun.tan@intel.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Rahul Kumar <rahul1.kumar@intel.com>
Cc: Ray Ni <ray.ni@intel.com>
Reported-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Michael D Kinney <michael.d.kinney@intel.com>
Reviewed-by: Leif Lindholm <quic_llindhol@quicinc.com>
Reviewed-by: Rahul Kumar <rahul1.kumar@intel.com>
Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>
Tested-by: Gerd Hoffmann <kraxel@redhat.com>
Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=4682
Commit 725acd0b9c ("UefiCpuPkg: Avoid assuming only one smmbasehob",
2023-12-12) introduced a helper function called GetSmBase(), replacing
the lookup of the first and only "gSmmBaseHobGuid" GUID HOB and
unconditional "mCpuHotPlugData.SmBase" allocation, with iterated lookups
plus conditional memory allocation.
This introduced a new failure mode for setting "mCpuHotPlugData.SmBase".
Namely, before commit 725acd0b9c, "mCpuHotPlugData.SmBase" would be
allocated regardless of the GUID HOB being absent. After the commit,
"mCpuHotPlugData.SmBase" could remain NULL if the GUID HOB was absent,
*or* one of the memory allocations inside GetSmBase() failed; and in the
former case, we'd even proceed to the rest of PiCpuSmmEntry().
In relation to this conflation of distinct failure modes, commit
725acd0b9c actually introduced a NULL pointer dereference. Namely, a
NULL "mCpuHotPlugData.SmBase" is not handled properly at all now. We're
going to fix that NULL pointer dereference in a subsequent patch; however,
as a pre-requisite for that we need to tell apart the failure modes of
GetSmBase().
For memory allocation failures, return EFI_OUT_OF_RESOURCES. Move the
"assertion" that SMRAM cannot be exhausted happen out to the caller
(PiCpuSmmEntry()). Strengthen the assertion by adding an explicit
CpuDeadLoop() call. (Note: GetSmBase() *already* calls CpuDeadLoop() if
(NumberOfProcessors != MaxNumberOfCpus).)
For the absence of the GUID HOB, return EFI_NOT_FOUND.
For good measure, make GetSmBase() STATIC (it should have been STATIC from
the start).
This is just a refactoring, no behavioral difference is intended (beyond
the explicit CpuDeadLoop() upon SMRAM exhaustion).
Cc: Dun Tan <dun.tan@intel.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Rahul Kumar <rahul1.kumar@intel.com>
Cc: Ray Ni <ray.ni@intel.com>
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Michael D Kinney <michael.d.kinney@intel.com>
Reviewed-by: Leif Lindholm <quic_llindhol@quicinc.com>
Reviewed-by: Rahul Kumar <rahul1.kumar@intel.com>
Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>
Tested-by: Gerd Hoffmann <kraxel@redhat.com>
Nickle Wang
Jayaprakash, N
Michael D Kinney
Rebecca Cran
Gerd Hoffmann
Tuan Phan
Abner Chang
Michael Kubacki
Junfeng Guan
Yi Li
David Woodhouse
Gua Guo
Dhaval
Zhiguang Liu
Jiaxin Wu
Laszlo Ersek