kernel.git/arch/x86/include/asm/cacheinfo.h, branch linux-4.19.y Hosts the 0x221E linux distro kernel. https://git.0xinfinity.dev/distro/kernel.git/atom?h=linux-4.19.y 2018-05-06T10:49:15Z x86/CPU/AMD: Calculate last level cache ID from number of sharing threads 2018-05-06T10:49:15Z Suravee Suthikulpanit 2018-04-27T21:34:37Z urn:sha1:68091ee7ac3c1a8786fe1bebbd616b14236efb99 Last Level Cache ID can be calculated from the number of threads sharing the cache, which is available from CPUID Fn0x8000001D (Cache Properties). This is used to left-shift the APIC ID to derive LLC ID. Therefore, default to this method unless the APIC ID enumeration does not follow the scheme. Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com> Signed-off-by: Borislav Petkov <bp@suse.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/1524864877-111962-5-git-send-email-suravee.suthikulpanit@amd.com