Re: [Qemu-ppc] [Qemu-devel] [PATCH v3 1/5] ppc: spapr: Register and handle HCALL to receive updated RTAS region

[Nikunj A Dadhania]

David Gibson <address@hidden> writes:

> On Wed, Aug 16, 2017 at 02:42:13PM +0530, Aravinda Prasad wrote:
>> Receive updates from SLOF about the updated rtas-base.
>> A separate patch for SLOF [1] adds functionality to invoke
>> a private HCALL whenever OS issues instantiate-rtas with
>> a new rtas-base.
>> 
>> This is required as QEMU needs to know the updated rtas-base
>> as it allocates error reporting structure in RTAS space upon
>> a machine check exception.
>> 
>> [1] https://lists.ozlabs.org/pipermail/linuxppc-dev/2014-August/120386.html
>> 
>> Signed-off-by: Aravinda Prasad <address@hidden>
>> Reviewed-by: David Gibson <address@hidden>
>
> Actually, I take back this R-b, see below.
>
> In any case I'm not willing to apply the patches which depend on this
> until the corresponding SLOF update is merged as well.

We already have this sitting around in SLOF for a while

https://git.qemu.org/gitweb.cgi?p=SLOF.git;a=commit;f=lib/libhvcall/libhvcall.h;h=f9a60de30492863811c2cdf6f28988c9e8a2c3d9

Regards
Nikunj