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From: Programmingkid <programmingkidx@gmail.com>
To: Paolo Bonzini <pbonzini@redhat.com>,
	Richard Henderson <rth@twiddle.net>,
	ehabkost@redhat.com, phil@philjordan.eu
Cc: "qemu-devel@nongnu.org qemu-devel" <qemu-devel@nongnu.org>
Subject: [Qemu-devel] Commit 77af8a2b95b79699de650965d5228772743efe84 breaks Windows 2000 support
Date: Thu, 20 Jul 2017 12:40:20 -0400	[thread overview]
Message-ID: <3E24AFDE-D25A-416B-A600-3C2221C3A9F1@gmail.com> (raw)

I noticed that Windows 2000 does not boot up in QEMU recently. After bisecting the issue I found the offending commit:

commit 77af8a2b95b79699de650965d5228772743efe84
Author: Phil Dennis-Jordan <phil@philjordan.eu>
Date:   Wed Mar 15 19:20:26 2017 +1300

    hw/i386: Use Rev3 FADT (ACPI 2.0) instead of Rev1 to improve guest OS support.
    
    This updates the FADT generated for x86/64 machine types from Revision 1 to 3. (Based on ACPI standard 2.0 instead of 1.0) The intention is to expose the reset register information to guest operating systems which require it, specifically OS X/macOS. Revision 1 FADTs do not contain the fields relating to the reset register.
    
    The new layout and contents remains backwards-compatible with operating systems which only support ACPI 1.0, as the existing fields are not modified by this change, as the 64-bit and 32-bit variants are allowed to co-exist according to the ACPI 2.0 standard. No regressions became apparent in tests with a range of Windows (XP-10) and Linux versions.
    
    The BIOS tables test suite's FADT checksum test has also been updated to reflect the new FADT layout and content.
    
    Signed-off-by: Phil Dennis-Jordan <phil@philjordan.eu>
    Message-Id: <1489558827-28971-2-git-send-email-phil@philjordan.eu>
    Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

:040000 040000 40063761c0b86f87e798e03ea48eff9ea0753425 6d2a94150cf1eafb16f0ccf6325281415fef64a6 M	hw
:040000 040000 fe3f1480a91b76fea238c765f0725e715932d96d 68f9368d8d78fd3267f609b603f97e8a74bdf528 M	include
:040000 040000 895e961b0a160100aa95b2f557cfe6b87a7d9bff 8ed08cef10fddee7814e38ad62be11371592a75a M	tests

             reply	other threads:[~2017-07-20 16:40 UTC|newest]

Thread overview: 44+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-07-20 16:40 Programmingkid [this message]
2017-07-20 19:29 ` [Qemu-devel] Commit 77af8a2b95b79699de650965d5228772743efe84 breaks Windows 2000 support Phil Dennis-Jordan
2017-07-21  0:00   ` Programmingkid
2017-07-21  9:06   ` Igor Mammedov
2017-07-21  9:11     ` Phil Dennis-Jordan
2017-07-21  9:23     ` Daniel P. Berrange
2017-07-21 12:34       ` Igor Mammedov
2017-07-21 18:29         ` Phil Dennis-Jordan
2017-07-25 16:14           ` Laszlo Ersek
2017-07-25 16:23             ` Paolo Bonzini
2017-07-25 17:10               ` Paolo Bonzini
2017-07-25 21:25                 ` Phil Dennis-Jordan
2017-07-26  8:53                   ` Paolo Bonzini
2017-07-26 11:42                     ` Laszlo Ersek
2017-07-26 12:06                       ` Paolo Bonzini
2017-07-25 22:01                 ` [Qemu-devel] [SeaBIOS] " Kevin O'Connor
2017-07-26  7:20                   ` Paolo Bonzini
2017-07-26 19:12                     ` Kevin O'Connor
2017-07-26 20:21                       ` Paolo Bonzini
2017-07-27  8:39                         ` Gerd Hoffmann
2017-07-27 12:26                           ` Paolo Bonzini
2017-07-27 14:59                         ` Kevin O'Connor
2017-07-27 17:46                           ` Laszlo Ersek
2017-07-28  6:57                             ` Gerd Hoffmann
2017-07-26 13:08               ` [Qemu-devel] " Igor Mammedov
2017-07-26 13:10                 ` Paolo Bonzini
2017-07-26 13:30                   ` Igor Mammedov
2017-07-26 13:33                     ` Paolo Bonzini
2017-07-26 13:43                       ` Igor Mammedov
2017-07-26 14:04                         ` Daniel P. Berrange
2017-07-26 16:13                           ` Michael S. Tsirkin
2017-07-26 13:57                     ` Michael S. Tsirkin
2017-07-24 12:45     ` Gerd Hoffmann
2017-07-24 16:43     ` John Snow
2017-07-24 17:30       ` Programmingkid
2017-07-21  9:20   ` Daniel P. Berrange
2017-07-21  9:46     ` Igor Mammedov
2017-07-21 10:39       ` Phil Dennis-Jordan
2017-07-21 10:50       ` BALATON Zoltan
2017-07-21 11:46         ` Phil Dennis-Jordan
2017-07-21 17:17           ` BALATON Zoltan
     [not found] <mailman.85963.1500629384.22737.qemu-devel@nongnu.org>
2017-07-21 16:00 ` Programmingkid
     [not found] <mailman.86860.1501079288.22738.qemu-devel@nongnu.org>
2017-07-27  2:38 ` Programmingkid
2017-07-27  3:23 Programmingkid

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