On Thu, Mar 14, 2019 at 11:36:39AM +0100, Sergio Lopez wrote:
>
> Paolo Bonzini writes:
>
> > On 13/03/19 12:45, Sergio Lopez wrote:
> >>
> >> Peter Xu writes:
> >>
> >>> Previously we have per-device system memory aliases when DMAR is
> >>> disabled by the system. It will slow the system down
On Wed, Mar 13, 2019 at 12:21:34PM +0100, Paolo Bonzini wrote:
> On 13/03/19 10:43, Peter Xu wrote:
> > Previously we have per-device system memory aliases when DMAR is
> > disabled by the system. It will slow the system down if there are
> > lots of devices especially when DMAR is disabled, becau
Paolo Bonzini writes:
> On 13/03/19 12:45, Sergio Lopez wrote:
>>
>> Peter Xu writes:
>>
>>> Previously we have per-device system memory aliases when DMAR is
>>> disabled by the system. It will slow the system down if there are
>>> lots of devices especially when DMAR is disabled, because eac
On 13/03/19 12:45, Sergio Lopez wrote:
>
> Peter Xu writes:
>
>> Previously we have per-device system memory aliases when DMAR is
>> disabled by the system. It will slow the system down if there are
>> lots of devices especially when DMAR is disabled, because each of the
>> aliased system addres
Peter Xu writes:
> Previously we have per-device system memory aliases when DMAR is
> disabled by the system. It will slow the system down if there are
> lots of devices especially when DMAR is disabled, because each of the
> aliased system address space will contain O(N) slots, and rendering
>
On 13/03/19 10:43, Peter Xu wrote:
> Previously we have per-device system memory aliases when DMAR is
> disabled by the system. It will slow the system down if there are
> lots of devices especially when DMAR is disabled, because each of the
> aliased system address space will contain O(N) slots,
Previously we have per-device system memory aliases when DMAR is
disabled by the system. It will slow the system down if there are
lots of devices especially when DMAR is disabled, because each of the
aliased system address space will contain O(N) slots, and rendering
such N address spaces will be