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authorSajan Karumanchi <sajan.karumanchi@amd.com>2023-08-01 15:20:55 +0000
committerPrem Mallappa <Premachandra.Mallappa@amd.com>2023-08-06 19:10:42 +0530
commitdcad5c8578130dec7f35fd5b0885304b59f9f543 (patch)
treee32eda50e4f5de3a0397734892518709adeb387c /sysdeps/htl
parent53850f044f65dd11efdf67a2ab214d312295d85c (diff)
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x86: Fix for cache computation on AMD legacy cpus.
Some legacy AMD CPUs and hypervisors have the _cpuid_ '0x8000_001D'
set to Zero, thus resulting in zeroed-out computed cache values.
This patch reintroduces the old way of cache computation as a
fail-safe option to handle these exceptions.
Fixed 'level4_cache_size' value through handle_amd().

Reviewed-by: Premachandra Mallappa <premachandra.mallappa@amd.com>
Tested-by: Florian Weimer <fweimer@redhat.com>
Diffstat (limited to 'sysdeps/htl')
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