Re: [Qemu-ppc] [Qemu-devel] [PATCH 3/5] target-ppc: Build error log

[Benjamin Herrenschmidt]

On Thu, 2014-08-28 at 12:29 +0200, Alexander Graf wrote:
> 
> On 28.08.14 12:21, Benjamin Herrenschmidt wrote:
> > On Thu, 2014-08-28 at 10:36 +0200, Alexander Graf wrote:
> > 
> >> So why not put it at 0x7000 then?
> > 
> > Because PAPR says it has to be inside RTAS iirc
> 
> Please show me the section of PAPR that does say so.

Actually, we should probably support both options:

PAPR V2.7

7.3.14 Firmware Assisted Non-Maskable Interrupts Option (FWNMI)

<<
The difference between ibm,nmi-register and ibm,nmi-register-2 is that
ibm,nmi-register allocates the error reporting
structure in RTAS space while ibm,nmi-register-2 places the error
reporting structure in real page 7. New OS designs
should use ibm,nmi-register since support for ibm,nmi-register-2 will be
terminated at some future date.
>>

Cheers,
Ben.