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feat: AMD support larger extended function entries #4995

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JackThomson2
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@JackThomson2 JackThomson2 commented Jan 14, 2025

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codecov bot commented Jan 14, 2025

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 83.20%. Comparing base (538702b) to head (426eed6).
Report is 2 commits behind head on main.

Additional details and impacted files
@@            Coverage Diff             @@
##             main    #4995      +/-   ##
==========================================
- Coverage   83.20%   83.20%   -0.01%     
==========================================
  Files         247      247              
  Lines       26639    26631       -8     
==========================================
- Hits        22166    22158       -8     
  Misses       4473     4473              
Flag Coverage Δ
5.10-c5n.metal 83.69% <ø> (ø)
5.10-m5n.metal 83.67% <ø> (+<0.01%) ⬆️
5.10-m6a.metal 82.88% <ø> (-0.01%) ⬇️
5.10-m6g.metal 79.67% <ø> (ø)
5.10-m6i.metal 83.66% <ø> (-0.02%) ⬇️
5.10-m7g.metal 79.67% <ø> (ø)
6.1-c5n.metal 83.69% <ø> (ø)
6.1-m5n.metal 83.67% <ø> (-0.01%) ⬇️
6.1-m6a.metal 82.87% <ø> (-0.01%) ⬇️
6.1-m6g.metal 79.67% <ø> (ø)
6.1-m6i.metal 83.66% <ø> (-0.01%) ⬇️
6.1-m7g.metal 79.67% <ø> (ø)

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@JackThomson2 JackThomson2 force-pushed the feat/amd_extended_fn_range_support branch 2 times, most recently from 2469548 to 38300e6 Compare January 14, 2025 16:26
@JackThomson2 JackThomson2 force-pushed the feat/amd_extended_fn_range_support branch 2 times, most recently from dabc490 to b4dfe07 Compare February 10, 2025 14:34
@roypat roypat marked this pull request as ready for review February 19, 2025 14:21
roypat
roypat previously approved these changes Feb 19, 2025
@JackThomson2 JackThomson2 force-pushed the feat/amd_extended_fn_range_support branch 2 times, most recently from 5a27b3d to 712dde5 Compare February 19, 2025 15:04
Removed the extended function entry normalisation step from AMD CPUs.
We will now pass through the value provided by KVM or set through a CPU
template. This now mirrors the behaviour of Intel. On newer AMD chips
and newer kernels we are now able to pass through features which were
previously out of range.

Signed-off-by: Jack Thomson <[email protected]>
@JackThomson2 JackThomson2 force-pushed the feat/amd_extended_fn_range_support branch from 712dde5 to 10049e6 Compare February 21, 2025 10:35
Add entry for the removal of extended function entry normalisation.

Signed-off-by: Jack Thomson <[email protected]>
@JackThomson2 JackThomson2 force-pushed the feat/amd_extended_fn_range_support branch from 10049e6 to 426eed6 Compare February 21, 2025 10:38
@JackThomson2 JackThomson2 merged commit 26a3a1e into firecracker-microvm:main Feb 21, 2025
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3 participants