From: Benjamin Gilbert <bgilbert@cs.cmu.edu>
To: Avi Kivity <avi@redhat.com>
Cc: kvm@vger.kernel.org
Subject: Re: Kernel GPF in vmx_save_host_state()
Date: Thu, 19 Mar 2009 17:00:57 -0400 [thread overview]
Message-ID: <49C2B289.7030707@cs.cmu.edu> (raw)
In-Reply-To: <49C20ED4.2040700@redhat.com>
Avi Kivity wrote:
> Well, that's certainly the wrmsr instruction. But I don't see how this
> can happen.
>
> Can you patch set_efer() in x86.c to print the value of the efer
> argument and of efer_reserved_bits?
Yes, but apparently set_efer() is never called. To verify, I patched
kvm_set_msr_common() to print the msr parameter:
kvm_set_msr_common: 0xc0010117
kvm_set_msr_common: 0x250
kvm_set_msr_common: 0x258
kvm_set_msr_common: 0x259
kvm_set_msr_common: 0x268
kvm_set_msr_common: 0x269
kvm_set_msr_common: 0x26a
kvm_set_msr_common: 0x26b
kvm_set_msr_common: 0x26c
kvm_set_msr_common: 0x26d
kvm_set_msr_common: 0x26e
kvm_set_msr_common: 0x26f
kvm_set_msr_common: 0x200
kvm_set_msr_common: 0x201
kvm_set_msr_common: 0x2ff
general protection fault: 0000 [#1] PREEMPT SMP
[...]
--Benjamin Gilbert
next prev parent reply other threads:[~2009-03-19 21:01 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-03-17 23:24 Kernel GPF in vmx_save_host_state() Benjamin Gilbert
2009-03-18 8:55 ` Avi Kivity
2009-03-18 17:26 ` Benjamin Gilbert
2009-03-19 9:22 ` Avi Kivity
2009-03-19 21:00 ` Benjamin Gilbert [this message]
2009-03-22 9:08 ` Avi Kivity
2009-03-23 18:24 ` Benjamin Gilbert
2009-03-23 18:34 ` Avi Kivity
2009-03-23 18:41 ` Benjamin Gilbert
2009-03-23 19:25 ` Avi Kivity
2009-03-23 20:07 ` Benjamin Gilbert
2009-03-19 4:04 ` Amit Shah
2009-03-19 9:55 ` Avi Kivity
2009-03-19 10:16 ` Amit Shah
2009-03-19 10:30 ` Avi Kivity
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