mirror of https://github.com/acidanthera/audk.git
170d4ce8e9
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. Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=2241388 Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Message-Id: <20231017112807.1244254-1-kraxel@redhat.com> Reviewed-by: Laszlo Ersek <lersek@redhat.com> |
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| .. | ||
| BaseXApicX2ApicLib.c | ||
| BaseXApicX2ApicLib.inf | ||
| BaseXApicX2ApicLib.uni | ||