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Re: [Xen-devel] [PATCH 0 of 5] PV on HVM Xen

To: Jeremy Fitzhardinge <jeremy@xxxxxxxx>, Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>
Subject: Re: [Xen-devel] [PATCH 0 of 5] PV on HVM Xen
From: Boris Derzhavets <bderzhavets@xxxxxxxxx>
Date: Mon, 15 Mar 2010 10:49:34 -0700 (PDT)
Cc: "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>, Stefano Stabellini <Stefano.Stabellini@xxxxxxxxxxxxx>, Sheng Yang <sheng@xxxxxxxxxxxxxxx>
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In fact it means if i am on Ubuntu HVM - patch set has to applied to Ubuntu's kernel
and "initrd"  rebuilt. HVM reloaded
if i am on Fedora Hvm - patch set has to applied to Fedora's kernel and "initrd" rebuilt
HVM reloaded


--- On Mon, 3/15/10, Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx> wrote:

From: Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>
Subject: Re: [Xen-devel] [PATCH 0 of 5] PV on HVM Xen
To: "Jeremy Fitzhardinge" <jeremy@xxxxxxxx>
Cc: "Boris Derzhavets" <bderzhavets@xxxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>, "Sheng Yang" <sheng@xxxxxxxxxxxxxxx>, "Stefano Stabellini" <Stefano.Stabellini@xxxxxxxxxxxxx>
Date: Monday, March 15, 2010, 1:27 PM

On Fri, 12 Mar 2010, Jeremy Fitzhardinge wrote:
> On 03/12/2010 02:13 PM, Boris Derzhavets wrote:
> > Yes. That's what i see on my box.
> >
> OK, over to you Stefano.  Why is Boris seeing an instacrash in dom0 with
> your patches in place?

As you might know already, the new patch series works as domU kernel
only so this problem doesn't exist anymore.

I decided to chase this bug anyway and it turns out that I was just

@@ -1345,6 +1346,8 @@ void __init xen_guest_init(void)
        int r;
        uint64_t callback_via;

+       if (xen_pv_domain())
+               return;

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