From: "Pavel Dovgalyuk" <dovgaluk@ispras.ru>
To: <qemu-devel@nongnu.org>, <pbonzini@redhat.com>, <rth@twiddle.net>,
<ehabkost@redhat.com>, <quintela@redhat.com>,
<dgilbert@redhat.com>
Subject: [Qemu-devel] i386: EFER vs 32-bit CPU
Date: Wed, 29 May 2019 14:26:39 +0300 [thread overview]
Message-ID: <003a01d51611$6251a2b0$26f4e810$@ru> (raw)
Hello!
I found this while debugging the inconsistent saved/restored state of the virtual machine.
i386 (32 bit) emulation uses this register (in wrmsr and in MMU fault processing).
But it does not included in VMState, because "efer" field is disabled with #ifdef TARGET_X86_64
I think that efer should be saved for i386 too, but how it should be made to preserve the backward
compatibility?
Should we add a section for i386, which duplicates efer, or just version_id of the main VMSD should
be updated?
Pavel Dovgalyuk
next reply other threads:[~2019-05-29 11:27 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-05-29 11:26 Pavel Dovgalyuk [this message]
2019-05-29 11:30 ` [Qemu-devel] i386: EFER vs 32-bit CPU Dr. David Alan Gilbert
2019-05-29 11:39 ` Paolo Bonzini
2019-05-29 11:53 ` Pavel Dovgalyuk
2019-05-29 12:36 ` Dr. David Alan Gilbert
2019-05-29 14:03 ` Pavel Dovgalyuk
2019-05-30 0:52 ` Peter Xu
2019-05-30 5:54 ` Pavel Dovgalyuk
2019-05-30 9:00 ` Peter Xu
2019-05-30 9:04 ` Peter Xu
2019-05-30 11:00 ` TeLeMan
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