From: bugzilla-daemon@bugzilla.kernel.org
To: kvm@vger.kernel.org
Subject: [Bug 211467] Regression affecting 32->64 bit SYSENTER on AMD
Date: Fri, 29 Jan 2021 23:38:47 +0000 [thread overview]
Message-ID: <bug-211467-28872-XMLxUDkv7V@https.bugzilla.kernel.org/> (raw)
In-Reply-To: <bug-211467-28872@https.bugzilla.kernel.org/>
https://bugzilla.kernel.org/show_bug.cgi?id=211467
Sean Christopherson (seanjc@google.com) changed:
What |Removed |Added
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CC| |seanjc@google.com
--- Comment #2 from Sean Christopherson (seanjc@google.com) ---
LOL, this is awesome. Presumably you're also exposing an Intel CPU model to
the guest, otherwise KVM would inject a #UD on SYSENTER instead of emulating.
Anyways, hilarity aside, your patch looks correct as Intel CPUs unconditionally
transition to 64-bit mode on SYSENTER from compatibility mode. Want to send a
formal patch? If you're not set up to send a patch, I'd be happy to write a
changelog if you want to provide a Signed-off-by.
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next prev parent reply other threads:[~2021-01-29 23:39 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-29 20:50 [Bug 211467] New: Regression affecting 32->64 bit SYSENTER on AMD bugzilla-daemon
2021-01-29 21:47 ` [Bug 211467] " bugzilla-daemon
2021-01-29 23:38 ` bugzilla-daemon [this message]
2021-02-01 10:31 ` bugzilla-daemon
2021-02-01 21:16 ` bugzilla-daemon
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