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Re: [Qemu-ppc] [PATCH RFC 0/4] Enable MTTCG on PowerPC
From: |
Nikunj A Dadhania |
Subject: |
Re: [Qemu-ppc] [PATCH RFC 0/4] Enable MTTCG on PowerPC |
Date: |
Wed, 07 Sep 2016 10:18:57 +0530 |
User-agent: |
Notmuch/0.21 (https://notmuchmail.org) Emacs/25.0.94.1 (x86_64-redhat-linux-gnu) |
David Gibson <address@hidden> writes:
> [ Unknown signature status ]
> On Fri, Sep 02, 2016 at 05:19:21PM +1000, Benjamin Herrenschmidt wrote:
>> 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 and the
>> inter-thread doorbells...
>
> Exactly. I think we want to get MTTCG working with multiple emulated
> cores first, then look into handling emulated hardware
> multi-threading. 2/4 suggests you are conflating the two, when
> they're really not related AFAICT.
Sure. Will do that in my next version.
Regards
Nikunj
- Re: [Qemu-ppc] [PATCH RFC 3/4] target-ppc: use atomic_cmpxchg for ld/st reservation, (continued)
Re: [Qemu-ppc] [Qemu-devel] [PATCH RFC 0/4] Enable MTTCG on PowerPC, Cédric Le Goater, 2016/09/02
Re: [Qemu-ppc] [PATCH RFC 0/4] Enable MTTCG on PowerPC, Benjamin Herrenschmidt, 2016/09/02