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From: Razvan Cojocaru <rzvncj@gmail.com>
To: xen-devel@lists.xen.org
Subject: Hvm_emulate_one() and guest_cpu_user_regs()->eip
Date: Thu, 17 Oct 2013 09:50:10 +0300	[thread overview]
Message-ID: <525F88A2.4030900@gmail.com> (raw)

Hello,

I've noticed that an hvm_emulate_one() call (that uses
guest_cpu_user_regs() for it's context) will succeed _without_ modifying
guest_cpu_user_regs()->eip. Again, this is not only happening when
hvm_emulate_one() returns X86EMUL_RETRY (which I'd expect), but also, in
some cases, when it returns no error.

Why would that happen, and what might be an example of an instruction
that could cause that if that's normal behaviour?


Thanks,
Razvan Cojocaru

             reply	other threads:[~2013-10-17  6:50 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-10-17  6:50 Razvan Cojocaru [this message]
2013-10-17  9:32 ` Hvm_emulate_one() and guest_cpu_user_regs()->eip Jan Beulich
2013-10-17 10:02   ` Razvan Cojocaru

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