Re: [Qemu-ppc] [PATCH RFC 0/4] Enable MTTCG on PowerPC

[Nikunj A Dadhania]

Benjamin Herrenschmidt <address@hidden> writes:

> On Fri, 2016-09-02 at 12:02 +0530, Nikunj A Dadhania wrote:
>> The series is a first attempt at enabling Multi-Threaded TCG on PowerPC.
>> Changes that were needed to enable PowerPC are pretty simple;
>> 
>> Patch 01: Take a iothread lock during hcall, as hcall can generate io 
>> requests
>>       02: For TCG, we were harcoding smt as 1, this gets rid of the 
>> limitation
>
> If we do this, we need to implement the shared SPRs properly

Sure, will have a look at it.

> and the inter-thread doorbells...

You mean the below ?

>> TODO
>> ====
>> Implement msgsndp instructions(door-bell), newer kernels enable it 
>> depending on the PVR. I have been using following workaround to boot.
>> https://github.com/nikunjad/qemu/commit/2c10052c5f93418a6b920e6ba3ce1813fcf50bc4

Regards,
Nikunj