Re: [Qemu-devel] [PATCH 1/7] alpha: Implement IMB; add placeholders for other userspace PALcalls.

[Richard Henderson]

On 12/13/2009 11:28 AM, Aurelien Jarno wrote:
> Is it really necessary to flush all the TB here? QEMU should already
> discard TB that have been modified.

No.  But I meant to look into this more carefully with a view to 
disabling the other checking within QEMU and speed things up a tad.  It 
seems to me that the explicit checking with each memory write ought to 
only be necessary on architectures like x86 that don't architecturally 
require a flush insn to be used.

I can drop this fragment if necessary for patch acceptance, however.


r~