Date: Sun, 13 Sep 2020 19:48:32 -0700 From: Pete Wright <pete@nomadlogic.org> To: Peter Grehan <grehan@freebsd.org> Cc: FreeBSD virtualization <freebsd-virtualization@freebsd.org> Subject: Re: Nested Virtualization Under KVM Hypervisor Message-ID: <8ce4ea45-f6e8-7560-1e4c-dfa24e5b2289@nomadlogic.org> In-Reply-To: <5ffc62fe-96ac-a834-1682-1be2a9f50d6d@freebsd.org> References: <e819886a-82d1-7fad-c341-b3e2bba50aed@nomadlogic.org> <5eacd0a5-89bd-cc98-6c5a-d5490e33b100@freebsd.org> <5e62480f-14cb-5963-f753-8562aab381e3@nomadlogic.org> <adbfa9f8-7e8b-edb2-e547-587e9187cb95@freebsd.org> <b1e2350c-8036-68ff-c0eb-2909face750e@nomadlogic.org> <5ffc62fe-96ac-a834-1682-1be2a9f50d6d@freebsd.org>
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On 9/12/20 11:30 PM, Peter Grehan wrote: > Hi Pete, > >> Ah I see - once I realized we had a newer kernel I didn't focus too >> much on the first bug - here's the MSR's >> >> >> MSR 0x480: 0x00981000 0x11e57ed0 >> MSR 0x482: 0xfff9fffe 0x0401e172 >> MSR 0x48b: 0x000003fb 0x00000000 >> MSR 0x48c: 0x00000f01 0x04114040 > > This looks very similar to comment 14 in the bug report > https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=203994#c14 > > INS/OUTS isn't marked as supported, and single-context INVEPT is > missing. As mentioned in comment 17, these are simple to work around > but other issues started to show up, indicating that other problems > are at play. > > Given kernel 4.15 looks like it could be from Ubuntu 16-LTS, I'd > recommend moving to 18-LTS if that is possible, since that kernel > version is known to work. > Thanks Peter for this feedback! I'll relay this info back to my hosting provider. Cheers, -pete -- Pete Wright pete@nomadlogic.org @nomadlogicLA
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