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arch: adjust_cpuid method on CpuProfile

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Introduce a method on `CpuProfile` that is used to adjust the given
CPUID entries according to the chosen CPU profile.

This will be used in a later commit to apply the user chosen CPU
profile.

This commit also introduces a few unit tests using relatively simple,
somewhat contrived input values.

We will introduce snapshot tests with realistic adjustments
and CPUID entries in our planned follow up PR bringing in our
pregenerated CPU profiles.

Signed-off-by: Oliver Anderson <oliver.anderson@cyberus-technology.de>
On-behalf-of: SAP oliver.anderson@sap.com
This commit is contained in:
Oliver Anderson
2026-04-14 14:21:29 +02:00
committed by Rob Bradford
parent d96de000f2
commit a9440d2919
2 changed files with 867 additions and 0 deletions
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arch/src/x86_64/mod.rs
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@@ -58,6 +58,9 @@ const AMX_INT8: u8 = 25; // AMX tile computation on 8-bit integers
const AMX_FP16: u8 = 21; // AMX tile computation on fp16 numbers
const AMX_COMPLEX: u8 = 8; // AMX tile computation on complex numbers
const AMX_TILECFG_BIT: u8 = 17; // AMX tile cfg state component bit
const AMX_TILEDATA_BIT: u8 = 18; // AMX tile data state component bit
// KVM feature bits
#[cfg(feature = "tdx")]
const KVM_FEATURE_CLOCKSOURCE_BIT: u8 = 0;