Wu, Jiaxin ad0b1cc144 UefiCpuPkg/BaseXApicLib: Fix CPUID_V2_EXTENDED_TOPOLOGY detection ... This patch is to complete 170d4ce8, sync the change to BaseXApicLib. Checking the max cpuid leaf is not enough to figure whenever CPUID_V2_EXTENDED_TOPOLOGY is supported. Intel SDM says: Software must detect the presence of CPUID leaf 1FH by verifying (a) the highest leaf index supported by CPUID is >= 1FH, and (b) CPUID.1FH:EBX[15:0] reports a non-zero value. The same is true for CPUID leaf 0BH. This patch adds the EBX check to GetProcessorLocation2ByApicId(). The patch also fixes the existing check in GetProcessorLocationByApicId() to be in line with the spec by looking at bits 15:0. The comments are updated with a quote from the Intel SDM. Cc: Laszlo Ersek <lersek@redhat.com> Cc: Eric Dong <eric.dong@intel.com> Cc: Ray Ni <ray.ni@intel.com> Cc: Rahul Kumar <rahul1.kumar@intel.com> Cc: Gerd Hoffmann <kraxel@redhat.com> Cc: Star Zeng <star.zeng@intel.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Jiaxin Wu <jiaxin.wu@intel.com> Message-Id: <20231115111553.6592-2-jiaxin.wu@intel.com> Reviewed-by: Laszlo Ersek <lersek@redhat.com> Reviewed-by: Ray Ni <ray.ni@intel.com>		2023-12-08 13:25:11 +00:00
..
BaseXApicLib.c	UefiCpuPkg/BaseXApicLib: Fix CPUID_V2_EXTENDED_TOPOLOGY detection	2023-12-08 13:25:11 +00:00
BaseXApicLib.inf	UefiCpuPkg: Remove UefiCpuLib from module INFs.	2023-03-10 08:23:56 +00:00
BaseXApicLib.uni	UefiCpuPkg: Replace BSD License with BSD+Patent License	2019-04-09 10:58:28 -07:00