Re: [PATCH v2 01/10] iommu/vt-d: Introduce native SVM capable flag

[Jacob Pan]

On Tue, 19 Nov 2019 10:55:29 +0800
Lu Baolu <baolu.lu@xxxxxxxxxxxxxxx> wrote:

> Hi,
> 
> On 11/19/19 5:48 AM, Jacob Pan wrote:
> > On Mon, 18 Nov 2019 21:33:53 +0100
> > Auger Eric <eric.auger@xxxxxxxxxx> wrote:
> >   
> >> Hi Jacob,
> >>
> >> On 11/18/19 8:42 PM, Jacob Pan wrote:  
> >>> Shared Virtual Memory(SVM) is based on a collective set of
> >>> hardware features detected at runtime. There are requirements for
> >>> matching CPU and IOMMU capabilities.
> >>>
> >>> This patch introduces a flag which will be used to mark and test
> >>> the capability of SVM.
> >>>
> >>> Signed-off-by: Jacob Pan <jacob.jun.pan@xxxxxxxxxxxxxxx>
> >>> Acked-by: Lu Baolu <baolu.lu@xxxxxxxxxxxxxxx>
> >>> ---
> >>>   include/linux/intel-iommu.h | 1 +
> >>>   1 file changed, 1 insertion(+)
> >>>
> >>> diff --git a/include/linux/intel-iommu.h
> >>> b/include/linux/intel-iommu.h index ed11ef594378..63118991824c
> >>> 100644 --- a/include/linux/intel-iommu.h
> >>> +++ b/include/linux/intel-iommu.h
> >>> @@ -433,6 +433,7 @@ enum {
> >>>   
> >>>   #define VTD_FLAG_TRANS_PRE_ENABLED	(1 << 0)
> >>>   #define VTD_FLAG_IRQ_REMAP_PRE_ENABLED	(1 << 1)
> >>> +#define VTD_FLAG_SVM_CAPABLE		(1 << 2)  
> >>
> >> I think I would rather squash this into the next patch as there is
> >> no user here.
> >>  
> > Sure, I don't have strong preference. Baolu, what is your call?  
> 
> It's okay for me.
> 
will squash then.
Thanks!
> Best regards,
> baolu

[Jacob Pan]