Hi! > > > Hardcode the EPT page-walk level for L2 to be 4 levels, as KVM's MMU > > > currently also hardcodes the page walk level for nested EPT to be 4 > > > levels. The L2 guest is all but guaranteed to soft hang on its first > > > instruction when L1 is using EPT, as KVM will construct 4-level page > > > tables and then tell hardware to use 5-level page tables. > > > > I don't get it. 7/191 reverts the patch, then 9/191 reverts the > > revert. Can we simply drop both 7 and 9, for exactly the same result? > > > > (Patch 8 is a unused file, so it does not change the picture). > > Patch 07 is reverting this patch from the same unused file, > arch/x86/kvm/vmx/vmx.c[*]. The reason patch 07 looks like a normal diff is > that a prior patch in 4.19.105 created the unused file (which is what's > reverted by patch 08 here). > > Patch 09 reintroduces the fix for the correct file, arch/x86/kvm/vmx.c. Aha, thanks, I checked content few times but missed difference in filename. Now it makes sense. Best regards, Pavel -- DENX Software Engineering GmbH, Managing Director: Wolfgang Denk HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
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