From: Paolo Bonzini <pbonzini@redhat.com>
To: sci sci <scicomplete@gmail.com>
Cc: kvm@vger.kernel.org
Subject: Re: Create VM exits when guest executes IRET on Intel CPU ?
Date: Sat, 25 Feb 2017 04:20:13 -0500 (EST) [thread overview]
Message-ID: <300101062.25867277.1488014413365.JavaMail.zimbra@redhat.com> (raw)
In-Reply-To: <CAKxKemZbVyRePNx7Yb1PDKAJdYO4RZL=nFWgTOViNFg0WKBBoA@mail.gmail.com>
> Within the guest I run a BSD guest OS that returns from certain system
> calls using the IRET instruction.
>
> Do you have any thoughts on where I could be wrong?
No, but I suggest using a small unit test in kvm-unit-tests
https://www.kernel.org/pub/scm/virt/kvm/kvm-unit-tests.git/
(either vmx.flat to test the VMX settings, or a test using IRET
to test your modified KVM). Tracing the unit test with trace-cmd
can provide clues more easily.
Paolo
prev parent reply other threads:[~2017-02-25 9:48 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-02-24 10:32 Create VM exits when guest executes IRET on Intel CPU ? sci sci
2017-02-24 12:40 ` Paolo Bonzini
2017-02-24 20:20 ` sci sci
2017-02-24 21:21 ` Steve Rutherford
2017-02-24 21:23 ` Steve Rutherford
2017-02-24 22:44 ` sci sci
2017-02-25 9:20 ` Paolo Bonzini [this message]
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