From: Paolo Bonzini <pbonzini@redhat.com>
To: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Cc: "Volker Rümelin" <vr_qemu@t-online.de>,
"Richard Henderson" <richard.henderson@linaro.org>,
eduardo@habkost.net, qemu-devel@nongnu.org
Subject: Re: [PATCH] target/i386/translate.c: always write 32-bits for SGDT and SIDT
Date: Fri, 26 Apr 2024 07:46:14 +0200 [thread overview]
Message-ID: <CABgObfYuAv6brH-C-jZtof-tTdMXLZP-fJz9jgQR5XsUB6F7wg@mail.gmail.com> (raw)
In-Reply-To: <d2e11eb2-4a4a-4e23-b200-3995ea865052@ilande.co.uk>
On Tue, Apr 23, 2024 at 10:42 PM Mark Cave-Ayland
<mark.cave-ayland@ilande.co.uk> wrote:
> > Let's change "Despite claims to the contrary" with "Despite a
> > confusing description".
>
> Thanks for sorting this, Paolo. I suspect that KVM needs a similar patch as per
> https://gitlab.com/qemu-project/qemu/-/issues/2198#note_1815726425 however the Win32s
> and OS/2 Warp 4 tests seem to work fine on KVM. Maybe it's because the SGDT and SIDT
> instructions run natively and don't need to be emulated for these cases?
Yes, they are almost never emulated (only in big real mode and only on
old Intel processors).
Paolo
prev parent reply other threads:[~2024-04-26 5:47 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-19 19:51 [PATCH] target/i386/translate.c: always write 32-bits for SGDT and SIDT Mark Cave-Ayland
2024-04-20 1:21 ` Richard Henderson
2024-04-20 5:40 ` Mark Cave-Ayland
2024-04-22 19:03 ` Volker Rümelin
2024-04-23 8:15 ` Philippe Mathieu-Daudé
2024-04-23 8:24 ` Daniel P. Berrangé
2024-04-23 9:18 ` Paolo Bonzini
2024-04-23 20:42 ` Mark Cave-Ayland
2024-04-26 5:46 ` Paolo Bonzini [this message]
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