Ubuntu
qemu package

  1. Focal (20.04)
  2. Bug #1887490
  3. Comment #19

Comment 19 for bug 1887490

Revision history for this message
Markus Schade (lp-markusschade) wrote : Re: Add/Backport EPYC-v3 and EPYC-Rome CPU model

Actually no. It builds and does not have any downsides, but does not resolve the issue. Sorry for that. When I looked at the history of cpu_map and this patch, I did not see that it would require further patches to actually make it work.

So that would leave it at these four patches:
Add-pschange-mc-no-bit-in-IA32_ARCH_CAPABILITIES-MSR.patch
Request-test-files-update-when-adding-x86-features.patch
Add-missing-x86-features-in-0x7-CPUID-leaf.patch
Add-missing-x86-features-in-0x80000008-CPUID-leaf.patch
Add-missing-AMD-SVM-features.patch

Plus the patch adding the EPYC-Rome model. I'll try to get it upstream, but it will take some time. From my side, it's totally fine from my side to go ahead with the update without it.

My patch queue for qemu also has 2 more patches, reported as LP#1896751 and LP#1896751