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[Qemu-ppc] Regression in ppc-softmmu when running HelenOS

From: Jakub Jermar
Subject: [Qemu-ppc] Regression in ppc-softmmu when running HelenOS
Date: Mon, 12 Mar 2012 11:51:15 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:8.0) Gecko/20111124 Thunderbird/8.0


resending the bug report to qemu-ppc@ to get the potentially interested
people hooked:


The following commit introduced some change due to which HelenOS no
longer boots to command line:

commit 41557447d30eeb944e42069513df13585f5e6c7f
Author: Alexander Graf <email address hidden>
Date: Fri Sep 10 15:08:34 2010 +0000

    PPC: Redesign interrupt trigger path

    According to the Book3S spec, the interrupt context starts with an MSR
    value that is rather simple. If we leave out the HV case, it's almost
    always 0.

    To reflect this, let's redesign the way that MSR value gets calculated.
    Using this, we also squash the bug where MSR_POW can slip through into
    the interrupt handler MSR.

    Reported-by: Thomas Monjalon <email address hidden>
    Signed-off-by: Alexander Graf <email address hidden>
    Signed-off-by: Edgar E. Iglesias <email address hidden>

To reproduce, use the openbios from Qemu 0.11.1 as we are also having
problems with the newer versions of openbios.


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