x86/mtrr: Revert 90b926e6 ("x86/pat: Fix pat_x_mtrr_type() for MTRR disabled case")
commit f9f57da2 upstream. Commit 90b926e6 ("x86/pat: Fix pat_x_mtrr_type() for MTRR disabled case") broke the use case of running Xen dom0 kernels on machines with an external disk enclosure attached via USB, see Link tag. What this commit was originally fixing - SEV-SNP guests on Hyper-V - is a more specialized situation which has other issues at the moment anyway so reverting this now and addressing the issue properly later is the prudent thing to do. So revert it in time for the 6.2 proper release. [ bp: Rewrite commit message. ] Reported-by:Christian Kujau <lists@nerdbynature.de> Tested-by:
Christian Kujau <lists@nerdbynature.de> Signed-off-by:
Juergen Gross <jgross@suse.com> Signed-off-by:
Borislav Petkov (AMD) <bp@alien8.de> Link: https://lore.kernel.org/r/4fe9541e-4d4c-2b2a-f8c8-2d34a7284930@nerdbynature.de Cc: Jason Andryuk <jandryuk@gmail.com> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
parent
8db2ea7b
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