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| author | Ray Ni <ray.ni@intel.com> | 2021-01-19 16:54:37 +0100 |
|---|---|---|
| committer | mergify[bot] <37929162+mergify[bot]@users.noreply.github.com> | 2021-01-20 18:20:14 +0000 |
| commit | cefad282fb31aff3e1a6dcbd368cbbffc3fce900 (patch) | |
| tree | c4837ee28e1d01b3f6634d036371abcbecd36438 /OvmfPkg/XenTimerDxe | |
| parent | e843a21e23ea605502f55ff2dbeeaf814d2aef9e (diff) | |
| download | edk2-cefad282fb31aff3e1a6dcbd368cbbffc3fce900.tar.gz edk2-cefad282fb31aff3e1a6dcbd368cbbffc3fce900.tar.bz2 edk2-cefad282fb31aff3e1a6dcbd368cbbffc3fce900.zip | |
UefiCpuPkg/CpuFeature: Don't assume CpuS3DataDxe alloc RegisterTable
There are lots of fields in ACPI_CPU_DATA structure while only
followings are accessed by CpuFeature infra:
* NumberOfCpus
* PreSmmInitRegisterTable // pointer
* RegisterTable // pointer
* CpuStatus
* ApLocation // pointer
So it's possible that an implementation of CpuS3DataDxe doesn't
allocate memory for PreSmmInitRegisterTable/RegisterTable/ApLocation.
This patch handles the case when CpuS3DataDxe doesn't allocate
memory for PreSmmInitRegisterTable/RegisterTable.
Cc: Eric Dong <eric.dong@intel.com>
Cc: Philippe Mathieu-Daudé <philmd@redhat.com>
Cc: Rahul Kumar <rahul1.kumar@intel.com>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Star Zeng <star.zeng@intel.com>
Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=3159
Signed-off-by: Ray Ni <ray.ni@intel.com>
[lersek@redhat.com: update CC list, add BZ reference, add my S-o-b]
[lersek@redhat.com: deal with RegisterTable and PreSmmInitRegisterTable
being zero independently of each other; replacing the ASSERT()]
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Message-Id: <20210119155440.2262-2-lersek@redhat.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>
Diffstat (limited to 'OvmfPkg/XenTimerDxe')
0 files changed, 0 insertions, 0 deletions