Re: [Qemu-devel] [RFC v4 1/9] exec.c: Add new exclusive bitmap to ram_list

[alvise rigo]

On Wed, Aug 12, 2015 at 4:10 PM, Paolo Bonzini <address@hidden> wrote:
>
>
> On 12/08/2015 16:04, alvise rigo wrote:
>>> > clear algorithm:
>>> >    if bytemap[vaddr] == 254
>>> >       bytemap[vaddr] = CPU_ID
>> Isn't this also required for the clear algorithm?
>>
>>     if bytemap[vaddr] < 254
>>         /* this can happen for the TLB_EXCL slow path effect */
>>         bytemap[vaddr] = 255
>
> I don't think so because clear doesn't clear TLB_EXCL.  But maybe we're
> talking about two different things. :)

Let me go through it again, I might have missed something :)

alvise

>
> Paolo