Re: [Qemu-ppc] [PATCH v2] ppc: Fix support for odd MSR combinations

[Benjamin Herrenschmidt]

On Sat, 2016-07-09 at 13:41 +1000, Benjamin Herrenschmidt wrote:
> MacOS uses an architecturally illegal MSR combination that
> seems nonetheless supported by 32-bit processors, which is
> to have MSR[PR]=1 and one or more of MSR[DR/IR/EE]=0.
> 
> This adds support for it. To work properly we need to also
> properly include support for PR=1,{I,D}R=0 to the MMU index
> used by the qemu TLB.
> 
> Signed-off-by: Benjamin Herrenschmidt <address@hidden>

Note Mark that with this patch on top of the dbdma series (which I did
manage to find in your repository :-), my OSX 9.2.2 installer now boots
without any hangs.

Cheers,
Ben.