Re: [PATCH v6 07/33] iommu: Avoid reallocate default domain for a group

2021-01-29 Thread Will Deacon
On Fri, Jan 29, 2021 at 09:52:42AM +0800, Yong Wu wrote: > On Thu, 2021-01-28 at 21:14 +, Will Deacon wrote: > > On Thu, Jan 28, 2021 at 09:10:20PM +, Will Deacon wrote: > > > On Wed, Jan 27, 2021 at 05:39:16PM +0800, Yong Wu wrote: > > > > On Tue, 2021-01-26 at 22:23 +, Will Deacon wro

Re: [PATCH v6 07/33] iommu: Avoid reallocate default domain for a group

2021-01-28 Thread Yong Wu
On Thu, 2021-01-28 at 21:14 +, Will Deacon wrote: > On Thu, Jan 28, 2021 at 09:10:20PM +, Will Deacon wrote: > > On Wed, Jan 27, 2021 at 05:39:16PM +0800, Yong Wu wrote: > > > On Tue, 2021-01-26 at 22:23 +, Will Deacon wrote: > > > > On Mon, Jan 11, 2021 at 07:18:48PM +0800, Yong Wu wro

Re: [PATCH v6 07/33] iommu: Avoid reallocate default domain for a group

2021-01-28 Thread Robin Murphy
On 2021-01-28 21:14, Will Deacon wrote: On Thu, Jan 28, 2021 at 09:10:20PM +, Will Deacon wrote: On Wed, Jan 27, 2021 at 05:39:16PM +0800, Yong Wu wrote: On Tue, 2021-01-26 at 22:23 +, Will Deacon wrote: On Mon, Jan 11, 2021 at 07:18:48PM +0800, Yong Wu wrote: If group->default_domain

Re: [PATCH v6 07/33] iommu: Avoid reallocate default domain for a group

2021-01-28 Thread Will Deacon
On Thu, Jan 28, 2021 at 09:10:20PM +, Will Deacon wrote: > On Wed, Jan 27, 2021 at 05:39:16PM +0800, Yong Wu wrote: > > On Tue, 2021-01-26 at 22:23 +, Will Deacon wrote: > > > On Mon, Jan 11, 2021 at 07:18:48PM +0800, Yong Wu wrote: > > > > If group->default_domain exists, avoid reallocate

Re: [PATCH v6 07/33] iommu: Avoid reallocate default domain for a group

2021-01-28 Thread Will Deacon
On Wed, Jan 27, 2021 at 05:39:16PM +0800, Yong Wu wrote: > On Tue, 2021-01-26 at 22:23 +, Will Deacon wrote: > > On Mon, Jan 11, 2021 at 07:18:48PM +0800, Yong Wu wrote: > > > If group->default_domain exists, avoid reallocate it. > > > > > > In some iommu drivers, there may be several devices

Re: [PATCH v6 07/33] iommu: Avoid reallocate default domain for a group

2021-01-27 Thread Yong Wu
On Tue, 2021-01-26 at 22:23 +, Will Deacon wrote: > On Mon, Jan 11, 2021 at 07:18:48PM +0800, Yong Wu wrote: > > If group->default_domain exists, avoid reallocate it. > > > > In some iommu drivers, there may be several devices share a group. Avoid > > realloc the default domain for this case.

Re: [PATCH v6 07/33] iommu: Avoid reallocate default domain for a group

2021-01-26 Thread Will Deacon
On Mon, Jan 11, 2021 at 07:18:48PM +0800, Yong Wu wrote: > If group->default_domain exists, avoid reallocate it. > > In some iommu drivers, there may be several devices share a group. Avoid > realloc the default domain for this case. > > Signed-off-by: Yong Wu > --- > drivers/iommu/iommu.c | 3

[PATCH v6 07/33] iommu: Avoid reallocate default domain for a group

2021-01-11 Thread Yong Wu
If group->default_domain exists, avoid reallocate it. In some iommu drivers, there may be several devices share a group. Avoid realloc the default domain for this case. Signed-off-by: Yong Wu --- drivers/iommu/iommu.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers