[Top][All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [Qemu-devel] add 'monitor' and 'mwait' instruction (update)
From: |
Jamie Lokier |
Subject: |
Re: [Qemu-devel] add 'monitor' and 'mwait' instruction (update) |
Date: |
Sun, 9 Jul 2006 16:21:45 +0100 |
User-agent: |
Mutt/1.4.1i |
R. Armiento wrote:
> I'm not sure if I have understood all sources from where such a
> memory write can come from while the processor is asleep. One
> source, I suppose, is from other processors in an SMP setup? Another
> source may be DMA? Does this mean that it is safe to emulate wmait
> as hlt if neiter SMP or DMA is used?
Yes, and yes. More specifically, DMA to RAM (DMA from RAM to device
doesn't matter).
> (Qemu hardware doesn't support DMA, right?)
I'm pretty sure it does.
-- Jamie
- Re: [Qemu-devel] [PATCH] add 'monitor' and 'mwait' instruction, (continued)
- [Qemu-devel] [PATCH] add 'monitor' and 'mwait' instruction (update), Joachim Henke, 2006/07/07
- Re: [Qemu-devel] [PATCH] add 'monitor' and 'mwait' instruction (update), R. Armiento, 2006/07/08
- Re: [Qemu-devel] add 'monitor' and 'mwait' instruction (update), Joachim Henke, 2006/07/08
- Re: [Qemu-devel] add 'monitor' and 'mwait' instruction (update), R. Armiento, 2006/07/08
- Re: [Qemu-devel] add 'monitor' and 'mwait' instruction (update), Joachim Henke, 2006/07/09
- Re: [Qemu-devel] add 'monitor' and 'mwait' instruction (update), R. Armiento, 2006/07/09
- Re: [Qemu-devel] add 'monitor' and 'mwait' instruction (update), Paul Brook, 2006/07/09
- Re: [Qemu-devel] add 'monitor' and 'mwait' instruction (update), Jamie Lokier, 2006/07/09
- Re: [Qemu-devel] 'monitor' and 'mwait' instruction, Joachim Henke, 2006/07/09
- Re: [Qemu-devel] add 'monitor' and 'mwait' instruction (update),
Jamie Lokier <=
- Re: [Qemu-devel] add 'monitor' and 'mwait' instruction (update), Jamie Lokier, 2006/07/09