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From: Jan Beulich <jbeulich@suse.com>
To: "xen-devel@lists.xenproject.org" <xen-devel@lists.xenproject.org>
Cc: "Andrew Cooper" <andrew.cooper3@citrix.com>,
	"Teddy Astie" <teddy.astie@vates.tech>,
	"Roger Pau Monné" <roger@xenproject.org>,
	"Andrew Mbugua" <andrewprecious388@gmail.com>
Subject: [PATCH 0/2] x86emul: XCR0 handling
Date: Thu, 20 Aug 2026 10:50:33 +0200	[thread overview]
Message-ID: <0c3cb1ae-4888-4319-a348-263f7913a7f2@suse.com> (raw)

Prompted by Andrew's report [1] I thought it may help if we accelerated two
of the patches I have pending as part of the (so far unposted) APX series.
We previously discussed latching some control register state once early, so
let's start with doing so for XCR0.

[1] https://lists.xen.org/archives/html/xen-devel/2026-08/msg01006.html

1: latch XCR0 early during decode
2: use latched XCR0 in x86emul_get_fpu()

Jan


             reply	other threads:[~2026-08-20  8:50 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-08-20  8:50 Jan Beulich [this message]
2026-08-20  8:52 ` [PATCH 1/2] x86emul: latch XCR0 early during decode Jan Beulich
2026-08-20  8:52 ` [PATCH 2/2] x86emul: use latched XCR0 in x86emul_get_fpu() Jan Beulich

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