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Re: [Qemu-ppc] [HelenOS-devel] Regression in ppc-softmmu when running He

From: Martin Sucha
Subject: Re: [Qemu-ppc] [HelenOS-devel] Regression in ppc-softmmu when running HelenOS
Date: Sat, 17 Mar 2012 18:28:06 +0100
User-agent: KMail/1.13.6 (Linux/2.6.38-13-generic; KDE/4.7.2; x86_64; ; )

Hello Mark,

On Friday 16 March 2012 00:03:21 Mark Cave-Ayland wrote:
> Please find attached the latest version of my patch which seems to have
> the same behaviour as git master, except that it now also boots HelenOS.
> This is based upon the PowerISA reference link you pointed me towards.
> I've also clarified the comments to make it clearer where the masks have
> been calculated from, plus modified it so (I hope) it will also work on
> PPC64.
> Any feedback/review/testing greatly appreciated.
Using (a slightly modified version of) your qemu-ppc-v3.patch:
-+    new_msr = env->msr & ~0xed36ULL & ~((target_ulong)1 << MSR_HVB);
++    new_msr = env->msr & ~0xed36ULL & ~((target_ulong) MSR_HVB);

And using a patch to HelenOS, I'm able to run HelenOS mainline without a 
change to OpenBIOS on ppc32. I see the clock issue Jakub mentioned, but 
otherwise I can use the HelenOS user space graphical console normally.

Attached both patches.

Martin Sucha

Attachment: qemu-ppc-v3-modified.patch
Description: Text Data

Attachment: helenos-display-depth.patch
Description: Text Data

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