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Message-ID: <CAOp6jLb6OwfaBcYsdRZ-A5FLpY+y7WNoBqwc+2oCP7-3Sy-ZHg@mail.gmail.com>
Date: Thu, 1 Apr 2021 10:42:09 +1300
From: "Robert O'Callahan" <robert@...llahan.org>
To: Andy Lutomirski <luto@...capital.net>
Cc: Len Brown <lenb@...nel.org>,
David Laight <David.Laight@...lab.com>,
Dave Hansen <dave.hansen@...el.com>,
Andy Lutomirski <luto@...nel.org>,
Greg KH <gregkh@...uxfoundation.org>,
"Bae, Chang Seok" <chang.seok.bae@...el.com>,
X86 ML <x86@...nel.org>, LKML <linux-kernel@...r.kernel.org>,
libc-alpha <libc-alpha@...rceware.org>,
Florian Weimer <fweimer@...hat.com>,
Rich Felker <dalias@...c.org>, Kyle Huey <me@...ehuey.com>,
Keno Fischer <keno@...iacomputing.com>,
Linux API <linux-api@...r.kernel.org>
Subject: Re: Candidate Linux ABI for Intel AMX and hypothetical new related features
For the record, the benefits of dynamic XCR0 for rr recording
portability still apply. I guess it'd be useful for CRIU too. We would
also benefit from anything that incentivizes increased support for
CPUID faulting.
Rob
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