From: "Jun'ichi Nomura" <j-nomura@ce.jp.nec.com>
To: kvm@vger.kernel.org, Paolo Bonzini <pbonzini@redhat.com>,
Gleb Natapov <gleb@redhat.com>
Subject: Re: regression in v3.9? a guest stuck in BIOS if emulate_invalid_guest_state=Y
Date: Fri, 10 May 2013 11:51:57 +0900 [thread overview]
Message-ID: <518C60CD.3030206@ce.jp.nec.com> (raw)
In-Reply-To: <5188CF8B.8040809@ce.jp.nec.com>
On 05/07/13 18:55, Jun'ichi Nomura wrote:
> With v3.9 kernel and Nehalem CPU (i.e. unrestricted_guest=N),
> a guest stuck during boot (seemingly in BIOS).
> When setting emulate_invalid_guest_state=0, it does boot.
> (With v3.8 kernel and older, the guest used to boot fine by default.)
>
> The userspace is qemu-kvm of RHEL6.
> It seems the guest boots up fine with upstream qemu 1.4.1.
>
> Is this a kernel bug? Or is the userspace just too old to run on v3.9?
With the following patches on top of v3.9, the problem goes away.
Thank you!
Gleb Natapov (1):
KVM: VMX: fix halt emulation while emulating invalid guest sate
Paolo Bonzini (3):
KVM: emulator: emulate AAM
KVM: emulator: emulate XLAT
KVM: emulator: emulate SALC
--
Jun'ichi Nomura, NEC Corporation
prev parent reply other threads:[~2013-05-10 2:52 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-05-07 9:55 regression in v3.9? a guest stuck in BIOS if emulate_invalid_guest_state=Y Jun'ichi Nomura
2013-05-07 10:35 ` Gleb Natapov
2013-05-07 11:05 ` Jun'ichi Nomura
2013-05-07 12:06 ` Gleb Natapov
2013-05-07 14:46 ` Paolo Bonzini
2013-05-07 15:04 ` Gleb Natapov
2013-05-07 16:11 ` Paolo Bonzini
2013-05-08 3:22 ` Jun'ichi Nomura
2013-05-08 7:34 ` Jun'ichi Nomura
2013-05-08 8:29 ` Paolo Bonzini
2013-05-10 2:51 ` Jun'ichi Nomura [this message]
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