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Date: Tue, 25 Aug 2020 08:24:23 +0200 From: Joerg Roedel <jroedel@...e.de> To: Mike Stunes <mstunes@...are.com> Cc: Joerg Roedel <joro@...tes.org>, "x86@...nel.org" <x86@...nel.org>, "hpa@...or.com" <hpa@...or.com>, Andy Lutomirski <luto@...nel.org>, Dave Hansen <dave.hansen@...ux.intel.com>, Peter Zijlstra <peterz@...radead.org>, Jiri Slaby <jslaby@...e.cz>, Dan Williams <dan.j.williams@...el.com>, Tom Lendacky <thomas.lendacky@....com>, Juergen Gross <jgross@...e.com>, Kees Cook <keescook@...omium.org>, David Rientjes <rientjes@...gle.com>, Cfir Cohen <cfir@...gle.com>, Erdem Aktas <erdemaktas@...gle.com>, Masami Hiramatsu <mhiramat@...nel.org>, Sean Christopherson <sean.j.christopherson@...el.com>, Martin Radev <martin.b.radev@...il.com>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, "kvm@...r.kernel.org" <kvm@...r.kernel.org>, "virtualization@...ts.linux-foundation.org" <virtualization@...ts.linux-foundation.org> Subject: Re: [PATCH v6 00/76] x86: SEV-ES Guest Support Hi Mike, On Tue, Aug 25, 2020 at 12:21:03AM +0000, Mike Stunes wrote: > Thanks for the new update! I still see the same FSGSBASE behavior on our platform. > > That is, APs come up offline; masking out either FSGSBASE or RDPID from the > guest's CPUID results in all CPUs online. > > Is that still expected with this patch set? (As you mentioned in an earlier reply, > I’m testing on a Rome system.) The RDPID fix (removing RDPID usage from paranoid_entry) is probably not yet merged into the base you have been using. But removing RDPID from CPUID should make things work until the fix is merged. Regards, Joerg
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