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Re: [Xen-devel] VMX status report 11600:c4f3f719d997

To: "Yu, Ping Y" <ping.y.yu@xxxxxxxxx>, <xen-devel@xxxxxxxxxxxxxxxxxxx>
Subject: Re: [Xen-devel] VMX status report 11600:c4f3f719d997
From: Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>
Date: Mon, 25 Sep 2006 09:08:43 +0100
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On 25/9/06 08:03, "Yu, Ping Y" <ping.y.yu@xxxxxxxxx> wrote:

> Issues:
> 0) PAE SMP guest OS can't reboot in PAE SMP and IA32E SMP xen0, it
> just poweroff. See attachment "paeGuestOS2" for console log.

What if you remove the code in xen/arch/x86/hvm/hvm.c:hvm_hlt() that does
domain_shutdown() if VCPU==0 and EFLAGS.IF==0?

My guess is that restart happens on some arbitrary processor after all other
CPUs have been halted. However, the hack in hvm_hlt() causes the domain to
get powered off when VCPU0 is halted, preventing the restart code from

If you can confirm this I can probably fix it.

 -- Keir

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