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[Qemu-devel] [QEMU] Windows XP / Windows 95 / MS-DOS 6 regressions
From: |
Hervé Poussineau |
Subject: |
[Qemu-devel] [QEMU] Windows XP / Windows 95 / MS-DOS 6 regressions |
Date: |
Sun, 28 Feb 2016 22:49:55 +0100 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Icedove/38.5.0 |
Hi,
I currently see some regressions on Microsoft operating systems.
1) Windows XP bugchecks since commit:
commit 7f0b7141b4c7deab51efd8ee1e83eab2d9b7a9ea
Author: Richard Henderson <address@hidden>
Date: Mon Jul 6 17:29:59 2015 +0100
target-i386: Perform set/reset_inhibit_irq inline
With helpers that can be reused for other things.
Signed-off-by: Richard Henderson <address@hidden>
I'm starting QEMU with -cpu pentium2.
Attached patch can be applied on master to work-around the problem.
Another work-around is to start with -enable-kvm.
2) Windows 95 bugchecks since commit:
commit d6a2914984c89fa0a3125b9842e0cbf68de79a3d
Author: Richard Henderson <address@hidden>
Date: Thu Dec 17 11:19:19 2015 -0800
target-i386: Use gen_lea_v_seg in gen_lea_modrm
Centralize handling of segment bases.
Signed-off-by: Richard Henderson <address@hidden>
Message-Id: <address@hidden>
Signed-off-by: Paolo Bonzini <address@hidden>
(with 88c73d16ad1b6c22a2ab082064d0d521f756296a and
4987783400667147ada01a5bdcce53f11b822888 cherry-picked)
I'm starting QEMU with -cpu pentium.
I've not searched for a work-around.
3) MS-DOS 6 freezes when loading himem.sys since commit:
commit 1906b2af7c2345037d9b2fdf484b457b5acd09d1
Author: Richard Henderson <address@hidden>
Date: Thu Jul 2 13:59:21 2015 +0100
target-i386: Rearrange processing of 0F 01
Rather than nesting tests of OP, MOD, and RM, decode them
all at once with a switch. Fixes incorrect decoding of
AMD Pacifica extensions (aka vmrun et al) via op==2 path.
Signed-off-by: Richard Henderson <address@hidden>
I'm starting QEMU with -cpu 486.
It works on master if I add -enable-kvm
Hervé
0001-target-i386-partially-revert-Perform-set-reset_inhib.patch
Description: Text Data
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