main requirement is to use the auxiliary domain associated with mdev.
Cc: Kevin Tian
CC: Jacob Pan
CC: Jun Tian
Cc: Alex Williamson
Cc: Eric Auger
Cc: Jean-Philippe Brucker
Cc: Joerg Roedel
Cc: Lu Baolu
Signed-off-by: Liu Yi L
---
v1 -> v2:
*) check the iommu_device to ensure the handl
PASIDs. Currently the quota is a global parameter applied to
all VFIO devices. In the future per-device quota might be supported too.
Cc: Kevin Tian
CC: Jacob Pan
Cc: Eric Auger
Cc: Jean-Philippe Brucker
Cc: Joerg Roedel
Cc: Lu Baolu
Suggested-by: Alex Williamson
Signed-off-by: Liu Yi L
---
v4
inding request.
Cc: Kevin Tian
CC: Jacob Pan
Cc: Alex Williamson
Cc: Eric Auger
Cc: Jean-Philippe Brucker
Cc: Joerg Roedel
Cc: Lu Baolu
Signed-off-by: Jean-Philippe Brucker
Signed-off-by: Liu Yi L
Signed-off-by: Jacob Pan
---
v3 -> v4:
*) address comments from Alex on v3
v2 ->
This patch is added as instead of returning a boolean for DOMAIN_ATTR_NESTING,
iommu_domain_get_attr() should return an iommu_nesting_info handle.
Cc: Will Deacon
Cc: Robin Murphy
Cc: Eric Auger
Cc: Jean-Philippe Brucker
Suggested-by: Jean-Philippe Brucker
Signed-off-by: Liu Yi L
Signed-off
Cc: Kevin Tian
CC: Jacob Pan
Cc: Alex Williamson
Cc: Eric Auger
Cc: Jean-Philippe Brucker
Cc: Joerg Roedel
Cc: Lu Baolu
Signed-off-by: Liu Yi L
Signed-off-by: Jacob Pan
---
v2 -> v3:
*) remove cap/ecap_mask in iommu_nesting_info.
---
drivers/iommu/intel/iommu.c |
CC: Jacob Pan
Cc: Alex Williamson
Cc: Eric Auger
Cc: Jean-Philippe Brucker
Cc: Joerg Roedel
Cc: Lu Baolu
Signed-off-by: Liu Yi L
Signed-off-by: Jacob Pan
---
drivers/iommu/intel/iommu.c | 10 ++
drivers/iommu/intel/svm.c | 7 +--
2 files changed, 15 insertions(+), 2
amson
Cc: Eric Auger
Cc: Jean-Philippe Brucker
Cc: Joerg Roedel
Cc: Lu Baolu
Signed-off-by: Liu Yi L
---
v1 -> v2:
*) added in v2, but it was sent in a separate patchseries before
---
drivers/vfio/pci/vfio_pci_config.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a
> From: Alex Williamson
> Sent: Friday, July 10, 2020 8:55 PM
>
> On Fri, 10 Jul 2020 05:39:57 +0000
> "Liu, Yi L" wrote:
>
> > Hi Alex,
> >
> > > From: Alex Williamson
> > > Sent: Thursday, July 9, 2020 10:28 PM
> > &g
Hi Alex,
> From: Alex Williamson
> Sent: Thursday, July 9, 2020 10:28 PM
>
> On Thu, 9 Jul 2020 07:16:31 +0000
> "Liu, Yi L" wrote:
>
> > Hi Alex,
> >
> > After more thinking, looks like adding a r-b tree is still not enough to
> > solve th
-
999, and search in r-b tree.
So I'm wondering can we fall back to prior proposal which only free one
PASID for a free request. how about your opinion?
https://lore.kernel.org/linux-iommu/20200416084031.7266a...@w520.home/
Regards,
Yi Liu
> From: Liu, Yi L
> Sent: Thursday, July 9, 20
Hi Kevin,
> From: Tian, Kevin
> Sent: Thursday, July 9, 2020 10:18 AM
>
> > From: Liu, Yi L
> > Sent: Thursday, July 9, 2020 10:08 AM
> >
> > Hi Kevin,
> >
> > > From: Tian, Kevin
> > > Sent: Thursday, July 9, 2020 9:57 AM
> > &g
Hi Kevin,
> From: Tian, Kevin
> Sent: Thursday, July 9, 2020 9:57 AM
>
> > From: Liu, Yi L
> > Sent: Thursday, July 9, 2020 8:32 AM
> >
> > Hi Alex,
> >
> > > Alex Williamson
> > > Sent: Thursday, July 9, 2020 3:55 AM
> > >
Hi Alex,
> Alex Williamson
> Sent: Thursday, July 9, 2020 3:55 AM
>
> On Wed, 8 Jul 2020 08:16:16 +0000
> "Liu, Yi L" wrote:
>
> > Hi Alex,
> >
> > > From: Liu, Yi L < yi.l@intel.com>
> > > Sent: Friday, July 3, 2020
Hi Alex,
> From: Alex Williamson
> Sent: Thursday, July 9, 2020 3:30 AM
>
> On Wed, 8 Jul 2020 08:08:40 +0000
> "Liu, Yi L" wrote:
>
> > Hi Alex,
> >
> > Eric asked if we will to have data strcut other than struct
Hi Alex,
> From: Liu, Yi L < yi.l@intel.com>
> Sent: Friday, July 3, 2020 2:28 PM
>
> Hi Alex,
>
> > From: Alex Williamson
> > Sent: Friday, July 3, 2020 5:19 AM
> >
> > On Wed, 24 Jun 2020 01:55:19 -0700
> > Liu Yi L wrote:
>
ap_nesting {
+ struct vfio_info_cap_header header;
+ __u32 flags;
+ __u32 padding;
+ __u8info[];
+};
https://lore.kernel.org/linux-iommu/dm5pr11mb1435290b6cd561ec61027892c3...@dm5pr11mb1435.namprd11.prod.outlook.com/
Regards,
Yi Liu
> From: Liu, Yi L
> Sent: Tuesday, J
Hi Eric,
> From: Auger Eric
> Sent: Monday, July 6, 2020 11:18 PM
>
> Hi Yi,
>
> On 7/4/20 1:26 PM, Liu Yi L wrote:
> > This patch allows user space to request PASID allocation/free, e.g. when
> > serving the request from the guest.
> >
> >
Hi Eric,
> From: Auger Eric
> Sent: Monday, July 6, 2020 10:52 PM
>
> Hi Yi,
>
> On 7/4/20 1:26 PM, Liu Yi L wrote:
> > Shared Virtual Addressing (a.k.a Shared Virtual Memory) allows sharing
> > multiple process virtual address spaces with the device for simplifie
Hi Eric,
> From: Auger Eric
> Sent: Monday, July 6, 2020 10:52 PM
>
> Hi Yi,
>
> On 7/4/20 1:26 PM, Liu Yi L wrote:
> > From IOMMU p.o.v., PASIDs allocated and managed by external components
> > (e.g. VFIO) will be passed in for gpasid_bind/unbind operation. IOM
Hi Eric,
> From: Auger Eric
> Sent: Monday, July 6, 2020 10:07 PM
>
> Hi Yi,
> On 7/4/20 1:26 PM, Liu Yi L wrote:
> > This patch exports iommu nesting capability info to user space through
> > VFIO. User space is expected to check this info for supported uAPIs (e.g.
Hi Eric,
> From: Auger Eric < eric.au...@redhat.com >
> Sent: Monday, July 6, 2020 9:45 PM
>
> Hi Yi,
>
> On 7/6/20 3:10 PM, Liu, Yi L wrote:
> > Hi Eric,
> >
> >> From: Auger Eric
> >> Sent: Monday, July 6, 2020 6:37 PM
> >>
&
Hi Eric,
> From: Auger Eric
> Sent: Monday, July 6, 2020 9:22 PM
>
> Hi Yi,
>
> On 7/6/20 2:46 PM, Liu, Yi L wrote:
> > Hi Eric,
> >
> >> From: Auger Eric
> >>
> >> Hi Yi,
> >>
> >> Please add a
> From: Auger Eric
> Sent: Monday, July 6, 2020 9:01 PM
>
> On 7/6/20 2:20 PM, Liu, Yi L wrote:
> > Hi Eric,
> >
> >> From: Auger Eric
> >> Sent: Monday, July 6, 2020 5:34 PM
> >>
> >> On 7/4/20 1:26 PM, Liu Yi L wrote:
> >>
Hi Eric,
> From: Auger Eric
> Sent: Monday, July 6, 2020 6:37 PM
>
> Yi,
>
> On 7/4/20 1:26 PM, Liu Yi L wrote:
> > This patch exports iommu nesting capability info to user space through
> > VFIO. User space is expected to check this info for supported uAPIs (e
Hi Eric,
> From: Auger Eric
> Sent: Monday, July 6, 2020 8:56 PM
>
> Hi Yi,
>
> On 7/6/20 2:27 PM, Liu, Yi L wrote:
> > Hi Eric,
> >
> >> From: Auger Eric
> >> Sent: Monday, July 6, 2020 5:34 PM
> >>
> >> Hi Yi,
> >
Hi Eric,
> From: Auger Eric
>
> Hi Yi,
>
> Please add a commit message: instead of returning a boolean for
> DOMAIN_ATTR_NESTING, arm_smmu_domain_get_attr() returns a
> iommu_nesting_info handle.
will do. thanks for the suggestion.
>
> On 7/4/20 1:26 PM, Liu Yi L
Hi Eric,
> From: Auger Eric
> Sent: Monday, July 6, 2020 5:34 PM
>
> Hi Yi,
>
> On 7/4/20 1:26 PM, Liu Yi L wrote:
> > This patch refactors the vfio_iommu_type1_ioctl() to use switch
> > instead of if-else, and each cmd got a helper function.
> command
I
Hi Eric,
> From: Auger Eric
> Sent: Monday, July 6, 2020 5:34 PM
>
> On 7/4/20 1:26 PM, Liu Yi L wrote:
> > IOMMUs that support nesting translation needs report the capability info
> need to report
> > to userspace, e.g. the format of first level/stage paging str
Cc: Kevin Tian
CC: Jacob Pan
Cc: Alex Williamson
Cc: Eric Auger
Cc: Jean-Philippe Brucker
Cc: Joerg Roedel
Cc: Lu Baolu
Signed-off-by: Liu Yi L
Signed-off-by: Jacob Pan
---
v2 -> v3:
*) remove cap/ecap_mask in iommu_nesting_info.
---
drivers/iommu/intel/iommu.c |
Cc: Jean-Philippe Brucker
Cc: Joerg Roedel
Cc: Lu Baolu
Signed-off-by: Liu Yi L
Signed-off-by: Eric Auger
Signed-off-by: Jacob Pan
---
v1 -> v2:
*) rename from "vfio/type1: Flush stage-1 IOMMU cache for nesting type"
*) rename vfio_cache_inv_fn() to vfio_dev_cache_
Cc: Will Deacon
Cc: Robin Murphy
Cc: Eric Auger
Cc: Jean-Philippe Brucker
Suggested-by: Jean-Philippe Brucker
Signed-off-by: Liu Yi L
Signed-off-by: Jacob Pan
---
drivers/iommu/arm-smmu-v3.c | 29 +++--
drivers/iommu/arm-smmu.c| 29
CC: Jacob Pan
Cc: Alex Williamson
Cc: Eric Auger
Cc: Jean-Philippe Brucker
Cc: Joerg Roedel
Cc: Lu Baolu
Signed-off-by: Liu Yi L
Signed-off-by: Jacob Pan
---
drivers/iommu/intel/iommu.c | 10 ++
drivers/iommu/intel/svm.c | 7 +--
2 files changed, 15 insertions(+), 2
per the above reason.
Cc: Kevin Tian
CC: Jacob Pan
Cc: Alex Williamson
Cc: Eric Auger
Cc: Jean-Philippe Brucker
Cc: Joerg Roedel
Cc: Lu Baolu
Signed-off-by: Yi Sun
Signed-off-by: Liu Yi L
---
v2 -> v3:
*) pass in domain info only
*) use ioasid_t for pasid instead of int type
v1 -&
: Jean-Philippe Brucker
Cc: Joerg Roedel
Cc: Lu Baolu
Signed-off-by: Liu Yi L
Signed-off-by: Yi Sun
Signed-off-by: Jacob Pan
---
v3 -> v4:
*) address comments from v3, except the below comment against the range
of PASID_FREE request. needs more help on it.
"> +if (re
inding request.
Cc: Kevin Tian
CC: Jacob Pan
Cc: Alex Williamson
Cc: Eric Auger
Cc: Jean-Philippe Brucker
Cc: Joerg Roedel
Cc: Lu Baolu
Signed-off-by: Jean-Philippe Brucker
Signed-off-by: Liu Yi L
Signed-off-by: Jacob Pan
---
v3 -> v4:
*) address comments from Alex on v3
v2 ->
: Alex Williamson
Cc: Eric Auger
Cc: Jean-Philippe Brucker
Cc: Joerg Roedel
Cc: Lu Baolu
Signed-off-by: Liu Yi L
Signed-off-by: Jacob Pan
---
v3 -> v4:
*) split the SMMU driver changes to be a separate patch
*) move the @addr_width and @pasid_bits from vendor specific
part to generic p
amson
Cc: Eric Auger
Cc: Jean-Philippe Brucker
Cc: Joerg Roedel
Cc: Lu Baolu
Signed-off-by: Liu Yi L
---
v1 -> v2:
*) added in v2, but it was sent in a separate patchseries before
---
drivers/vfio/pci/vfio_pci_config.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a
lex Williamson
Cc: Eric Auger
Cc: Jean-Philippe Brucker
Cc: Joerg Roedel
Cc: Lu Baolu
Signed-off-by: Liu Yi L
Signed-off-by: Jacob Pan
---
drivers/iommu/intel/iommu.c | 16
include/linux/intel-iommu.h | 4
include/linux/iommu.h | 1 +
3 files changed, 21 inserti
l
Cc: Lu Baolu
Reviewed-by: Stefan Hajnoczi
Signed-off-by: Eric Auger
Signed-off-by: Liu Yi L
---
v3 -> v4:
*) add review-by from Stefan Hajnoczi
v2 -> v3:
*) address comments from Stefan Hajnoczi
v1 -> v2:
*) new in v2, compared with Eric's original version, pasid tabl
PASIDs. Currently the quota is a global parameter applied to
all VFIO devices. In the future per-device quota might be supported too.
Cc: Kevin Tian
CC: Jacob Pan
Cc: Eric Auger
Cc: Jean-Philippe Brucker
Cc: Joerg Roedel
Cc: Lu Baolu
Suggested-by: Alex Williamson
Signed-off-by: Liu Yi L
---
v3
it-send-email-yi.l@intel.com/
- RFC v1 -> v2:
Dropped vfio: VFIO_IOMMU_ATTACH/DETACH_PASID_TABLE.
RFC v1:
https://lore.kernel.org/linux-iommu/1562324772-3084-1-git-send-email-yi.l@intel.com/
---
Eric Auger (1):
vfio: Document dual stage control
Liu Yi L
: Liu Yi L
---
drivers/vfio/vfio_iommu_type1.c | 392 ++--
1 file changed, 213 insertions(+), 179 deletions(-)
diff --git a/drivers/vfio/vfio_iommu_type1.c b/drivers/vfio/vfio_iommu_type1.c
index 5e556ac..7accb59 100644
--- a/drivers/vfio/vfio_iommu_type1.c
+++ b
lated discussion about this decision.
https://lkml.org/lkml/2020/5/15/1028
Cc: Kevin Tian
CC: Jacob Pan
Cc: Alex Williamson
Cc: Eric Auger
Cc: Jean-Philippe Brucker
Cc: Joerg Roedel
Cc: Lu Baolu
Signed-off-by: Liu Yi L
---
v3 -> v4:
*) address comments against v3.
v1 -> v2:
*)
main requirement is to use the auxiliary domain associated with mdev.
Cc: Kevin Tian
CC: Jacob Pan
CC: Jun Tian
Cc: Alex Williamson
Cc: Eric Auger
Cc: Jean-Philippe Brucker
Cc: Joerg Roedel
Cc: Lu Baolu
Signed-off-by: Liu Yi L
---
v1 -> v2:
*) check the iommu_device to ensure the handl
Hi Alex,
> From: Liu, Yi L
> Sent: Friday, July 3, 2020 2:06 PM
[...]
> > > +#define VFIO_IOMMU_TYPE1_INFO_CAP_NESTING 3
> > > +
> > > +struct vfio_iommu_type1_info_cap_nesting {
> > > + struct vfio_info_cap_header header;
> > > + __u32 fla
Hi Alex,
> From: Alex Williamson
> Sent: Friday, July 3, 2020 5:20 AM
>
> On Wed, 24 Jun 2020 01:55:22 -0700
> Liu Yi L wrote:
>
> > Nesting translation allows two-levels/stages page tables, with 1st
> > level for guest translations (e.g. GVA->GPA), 2nd lev
Hi Alex,
> From: Alex Williamson
> Sent: Friday, July 3, 2020 5:19 AM
>
> On Wed, 24 Jun 2020 01:55:19 -0700
> Liu Yi L wrote:
>
> > This patch allows user space to request PASID allocation/free, e.g.
> > when serving the request from the guest.
> >
> &
Hi Alex,
> From: Alex Williamson
> Sent: Friday, July 3, 2020 5:17 AM
>
> On Wed, 24 Jun 2020 01:55:17 -0700
> Liu Yi L wrote:
>
> > Shared Virtual Addressing (a.k.a Shared Virtual Memory) allows sharing
> > multiple process virtual address spaces
Hi Alex,
> From: Alex Williamson < alex.william...@redhat.com >
> Sent: Friday, July 3, 2020 2:39 AM
>
> On Wed, 24 Jun 2020 01:55:16 -0700
> Liu Yi L wrote:
>
> > This patch exports iommu nesting capability info to user space through
> > VFIO. User spac
> From: Alex Williamson
> Sent: Friday, July 3, 2020 1:55 AM
>
> On Wed, 24 Jun 2020 01:55:15 -0700
> Liu Yi L wrote:
>
> > IOMMUs that support nesting translation needs report the capability
> > info to userspace, e.g. the format of first level/stage paging
> From: Williamson < alex.william...@redhat.com >
> Sent: Friday, July 3, 2020 5:20 AM
>
> On Wed, 24 Jun 2020 01:55:23 -0700
> Liu Yi L wrote:
>
> > This patch provides an interface allowing the userspace to invalidate
> > IOMMU cache for first-level page
> From: Alex Williamson
> Sent: Friday, July 3, 2020 5:21 AM
> To: Liu, Yi L
>
> On Wed, 24 Jun 2020 01:55:14 -0700
> Liu Yi L wrote:
>
> > This patch refactors the vfio_iommu_type1_ioctl() to use switch
> > instead of if-else, and each cmd got a helper
> From: Tian, Kevin
> Sent: Tuesday, June 30, 2020 10:01 AM
>
> > From: Liu, Yi L
> > Sent: Monday, June 29, 2020 8:23 PM
> >
> > Hi Stefan,
> >
> > > From: Stefan Hajnoczi
> > > Sent: Monday, June 29, 2020 5:25 PM
> > &
Hi Stefan,
> From: Stefan Hajnoczi
> Sent: Monday, June 29, 2020 5:25 PM
>
> On Wed, Jun 24, 2020 at 01:55:15AM -0700, Liu Yi L wrote:
> > +/*
> > + * struct iommu_nesting_info - Information for nesting-capable IOMMU.
> > + * user spac
> From: Stefan Hajnoczi
> Sent: Monday, June 29, 2020 5:22 PM
>
> On Wed, Jun 24, 2020 at 01:55:26AM -0700, Liu Yi L wrote:
> > +Details can be found in Documentation/userspace-api/iommu.rst. For
> > +Intel VT-d, each stage 1 page table is bound to host by:
> >
Hi Robin,
> From: Robin Murphy
> Sent: Saturday, June 27, 2020 12:05 AM
>
> On 2020-06-26 08:47, Jean-Philippe Brucker wrote:
> > On Wed, Jun 24, 2020 at 01:55:15AM -0700, Liu Yi L wrote:
> >> IOMMUs that support nesting translation needs report the capability
>
> From: Jean-Philippe Brucker
> Sent: Friday, June 26, 2020 3:48 PM
>
> On Wed, Jun 24, 2020 at 01:55:15AM -0700, Liu Yi L wrote:
> > IOMMUs that support nesting translation needs report the capability
> > info to userspace, e.g. the format of first level/stage paging
inding request.
Cc: Kevin Tian
CC: Jacob Pan
Cc: Alex Williamson
Cc: Eric Auger
Cc: Jean-Philippe Brucker
Cc: Joerg Roedel
Cc: Lu Baolu
Signed-off-by: Jean-Philippe Brucker
Signed-off-by: Liu Yi L
Signed-off-by: Jacob Pan
---
v2 -> v3:
*) use __iommu_sva_unbind_gpasid() for unbind ca
amson
Cc: Eric Auger
Cc: Jean-Philippe Brucker
Cc: Joerg Roedel
Cc: Lu Baolu
Signed-off-by: Liu Yi L
---
v1 -> v2:
*) added in v2, but it was sent in a separate patchseries before
---
drivers/vfio/pci/vfio_pci_config.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a
: Jean-Philippe Brucker
Cc: Joerg Roedel
Cc: Lu Baolu
Signed-off-by: Liu Yi L
Signed-off-by: Yi Sun
Signed-off-by: Jacob Pan
---
v1 -> v2:
*) move the vfio_mm related code to be a seprate module
*) use a single structure for alloc/free, could support a range of PASIDs
*) fetch vfio_mm
l
Cc: Lu Baolu
Signed-off-by: Eric Auger
Signed-off-by: Liu Yi L
---
v2 -> v3:
*) address comments from Stefan Hajnoczi
v1 -> v2:
*) new in v2, compared with Eric's original version, pasid table bind
and fault reporting is removed as this series doesn't cover them.
Origi
lated discussion about this decision.
https://lkml.org/lkml/2020/5/15/1028
Cc: Kevin Tian
CC: Jacob Pan
Cc: Alex Williamson
Cc: Eric Auger
Cc: Jean-Philippe Brucker
Cc: Joerg Roedel
Cc: Lu Baolu
Signed-off-by: Liu Yi L
---
drivers/vfio/vfio_iommu_type1.c
-by: Liu Yi L
Signed-off-by: Jacob Pan
---
drivers/iommu/arm-smmu-v3.c | 29 --
drivers/iommu/arm-smmu.c| 29 --
include/uapi/linux/iommu.h | 59 +
3 files changed, 113 insertions(+), 4 deletions(-)
diff
PASIDs. Currently the quota is a global parameter applied to
all VFIO devices. In the future per-device quota might be supported too.
Cc: Kevin Tian
CC: Jacob Pan
Cc: Eric Auger
Cc: Jean-Philippe Brucker
Cc: Joerg Roedel
Cc: Lu Baolu
Suggested-by: Alex Williamson
Signed-off-by: Liu Yi L
---
v1
Cc: Kevin Tian
CC: Jacob Pan
Cc: Alex Williamson
Cc: Eric Auger
Cc: Jean-Philippe Brucker
Cc: Joerg Roedel
Cc: Lu Baolu
Signed-off-by: Liu Yi L
Signed-off-by: Jacob Pan
---
v2 -> v3:
*) remove cap/ecap_mask in iommu_nesting_info.
---
drivers/iommu/intel/iommu.c |
per the above reason.
Cc: Kevin Tian
CC: Jacob Pan
Cc: Alex Williamson
Cc: Eric Auger
Cc: Jean-Philippe Brucker
Cc: Joerg Roedel
Cc: Lu Baolu
Signed-off-by: Yi Sun
Signed-off-by: Liu Yi L
---
v2 -> v3:
*) pass in domain info only
*) use ioasid_t for pasid instead of int type
v1 -&
main requirement is to use the auxiliary domain associated with mdev.
Cc: Kevin Tian
CC: Jacob Pan
CC: Jun Tian
Cc: Alex Williamson
Cc: Eric Auger
Cc: Jean-Philippe Brucker
Cc: Joerg Roedel
Cc: Lu Baolu
Signed-off-by: Liu Yi L
---
v1 -> v2:
*) check the iommu_device to ensure the handl
: Liu Yi L
---
drivers/vfio/vfio_iommu_type1.c | 392 ++--
1 file changed, 213 insertions(+), 179 deletions(-)
diff --git a/drivers/vfio/vfio_iommu_type1.c b/drivers/vfio/vfio_iommu_type1.c
index 5e556ac..7accb59 100644
--- a/drivers/vfio/vfio_iommu_type1.c
+++ b
562324772-3084-1-git-send-email-yi.l@intel.com/
---
Eric Auger (1):
vfio: Document dual stage control
Liu Yi L (12):
vfio/type1: Refactor vfio_iommu_type1_ioctl()
iommu: Report domain nesting info
vfio/type1: Report iommu nesting info to userspace
vfio: Add PASID allocation/free s
Cc: Jean-Philippe Brucker
Cc: Joerg Roedel
Cc: Lu Baolu
Signed-off-by: Liu Yi L
Signed-off-by: Eric Auger
Signed-off-by: Jacob Pan
---
v1 -> v2:
*) rename from "vfio/type1: Flush stage-1 IOMMU cache for nesting type"
*) rename vfio_cache_inv_fn() to vfio_dev_cache_
lex Williamson
Cc: Eric Auger
Cc: Jean-Philippe Brucker
Cc: Joerg Roedel
Cc: Lu Baolu
Signed-off-by: Liu Yi L
Signed-off-by: Jacob Pan
---
drivers/iommu/intel/iommu.c | 16
include/linux/intel-iommu.h | 4
include/linux/iommu.h | 1 +
3 files changed, 21 inserti
CC: Jacob Pan
Cc: Alex Williamson
Cc: Eric Auger
Cc: Jean-Philippe Brucker
Cc: Joerg Roedel
Cc: Lu Baolu
Signed-off-by: Liu Yi L
Signed-off-by: Jacob Pan
---
drivers/iommu/intel/iommu.c | 10 ++
drivers/iommu/intel/svm.c | 7 +--
2 files changed, 15 insertions(+), 2
> From: Stefan Hajnoczi
> Sent: Monday, June 22, 2020 8:51 PM
>
> On Wed, Jun 17, 2020 at 06:27:27AM +0000, Liu, Yi L wrote:
> > > From: Stefan Hajnoczi
> > > Sent: Monday, June 15, 2020 5:41 PM
> > > On Thu, Jun 11, 2020 at 05:15:33AM -0700, Liu Yi
> From: Alex Williamson
> Sent: Saturday, June 20, 2020 12:38 AM
>
> On Fri, 19 Jun 2020 03:30:24 +0000
> "Liu, Yi L" wrote:
>
> > Hi Alex,
> >
> > > From: Alex Williamson
> > > Sent: Friday, June 19, 2020 10:55 AM
> > >
Hi Alex,
> From: Alex Williamson
> Sent: Friday, June 19, 2020 10:55 AM
>
> On Fri, 19 Jun 2020 02:15:36 +0000
> "Liu, Yi L" wrote:
>
> > Hi Alex,
> >
> > > From: Alex Williamson
> > > Sent: Friday, June 19, 2020 5:48 AM
> &g
Hi Alex,
> From: Alex Williamson
> Sent: Friday, June 19, 2020 5:48 AM
>
> On Wed, 17 Jun 2020 08:28:24 +
> "Tian, Kevin" wrote:
>
> > > From: Liu, Yi L
> > > Sent: Wednesday, June 17, 2020 2:20 PM
> > >
> > >
Hi Jean,
> From: Jean-Philippe Brucker < jean-phili...@linaro.org>
> Sent: Wednesday, June 17, 2020 10:39 PM
>
> [+ Will and Robin]
>
> Hi Yi,
>
> On Thu, Jun 11, 2020 at 05:15:21AM -0700, Liu Yi L wrote:
> > IOMMUs that support nesting translation nee
> From: Stefan Hajnoczi
> Sent: Monday, June 15, 2020 5:41 PM
> On Thu, Jun 11, 2020 at 05:15:33AM -0700, Liu Yi L wrote:
>
> > From: Eric Auger
> >
> > The VFIO API was enhanced to support nested stage control: a bunch of
> > new iotcls and usage guideline.
&
> From: Jacob Pan
> Sent: Tuesday, June 16, 2020 11:22 PM
>
> On Thu, 11 Jun 2020 17:27:27 -0700
> Jacob Pan wrote:
>
> > >
> > > But then I thought it even better if VFIO leaves the entire
> > > copy_from_user() to the layer consuming it.
> > >
> > OK. Sounds good, that was what Kevin suggeste
> From: Tian, Kevin
> Sent: Tuesday, June 16, 2020 9:56 AM
>
> > From: Liu, Yi L
> > Sent: Monday, June 15, 2020 2:05 PM
> >
> > Hi Kevin,
> >
> > > From: Tian, Kevin
> > > Sent: Monday, June 15, 2020 9:23 AM
> > >
&g
> From: Stefan Hajnoczi
> Sent: Monday, June 15, 2020 6:02 PM
>
> On Thu, Jun 11, 2020 at 05:15:19AM -0700, Liu Yi L wrote:
> > Shared Virtual Addressing (SVA), a.k.a, Shared Virtual Memory (SVM) on
> > Intel platforms allows address space sharing between device DMA and
&
Hi Kevin,
> From: Tian, Kevin
> Sent: Monday, June 15, 2020 9:23 AM
>
> > From: Liu, Yi L
> > Sent: Friday, June 12, 2020 5:05 PM
> >
> > Hi Alex,
> >
> > > From: Alex Williamson
> > > Sent: Friday, June 12, 2020 3:30 AM
> > &
Hi Alex,
> From: Alex Williamson
> Sent: Friday, June 12, 2020 3:30 AM
>
> On Thu, 11 Jun 2020 05:15:21 -0700
> Liu Yi L wrote:
>
> > IOMMUs that support nesting translation needs report the capability
> > info to userspace, e.g. the format of first level/stage
Cc: Kevin Tian
CC: Jacob Pan
Cc: Alex Williamson
Cc: Eric Auger
Cc: Jean-Philippe Brucker
Cc: Joerg Roedel
Cc: Lu Baolu
Signed-off-by: Liu Yi L
Signed-off-by: Jacob Pan
---
drivers/iommu/intel-iommu.c | 81 +++--
include/linux/intel-iommu.h | 16
CC: Jacob Pan
Cc: Alex Williamson
Cc: Eric Auger
Cc: Jean-Philippe Brucker
Cc: Joerg Roedel
Cc: Lu Baolu
Signed-off-by: Liu Yi L
Signed-off-by: Jacob Pan
---
drivers/iommu/intel-iommu.c | 10 ++
drivers/iommu/intel-svm.c | 6 --
2 files changed, 14 insertions(+), 2
lated discussion about this decision.
https://lkml.org/lkml/2020/5/15/1028
Cc: Kevin Tian
CC: Jacob Pan
Cc: Alex Williamson
Cc: Eric Auger
Cc: Jean-Philippe Brucker
Cc: Joerg Roedel
Cc: Lu Baolu
Signed-off-by: Liu Yi L
---
drivers/vfio/vfio_iommu_type1.c
: Jean-Philippe Brucker
Cc: Joerg Roedel
Cc: Lu Baolu
Signed-off-by: Liu Yi L
Signed-off-by: Yi Sun
Signed-off-by: Jacob Pan
---
v1 -> v2:
*) move the vfio_mm related code to be a seprate module
*) use a single structure for alloc/free, could support a range of PASIDs
*) fetch vfio_mm
IOMMUs that support nesting translation needs report the capability info
to userspace, e.g. the format of first level/stage paging structures.
Cc: Kevin Tian
CC: Jacob Pan
Cc: Alex Williamson
Cc: Eric Auger
Cc: Jean-Philippe Brucker
Cc: Joerg Roedel
Cc: Lu Baolu
Signed-off-by: Liu Yi L
amson
Cc: Eric Auger
Cc: Jean-Philippe Brucker
Cc: Joerg Roedel
Cc: Lu Baolu
Signed-off-by: Liu Yi L
---
v1 -> v2:
*) added in v2, but it was sent in a separate patchseries before
drivers/vfio/pci/vfio_pci_config.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/driv
l
Cc: Lu Baolu
Signed-off-by: Eric Auger
Signed-off-by: Liu Yi L
---
v1 -> v2:
*) new in v2, compared with Eric's original version, pasid table bind
and fault reporting is removed as this series doesn't cover them.
Original version from Eric.
https://lkml.org/
Cc: Jean-Philippe Brucker
Cc: Joerg Roedel
Cc: Lu Baolu
Signed-off-by: Liu Yi L
Signed-off-by: Eric Auger
Signed-off-by: Jacob Pan
---
v1 -> v2:
*) rename from "vfio/type1: Flush stage-1 IOMMU cache for nesting type"
*) rename vfio_cache_inv_fn() to vfio_dev_cache_
lex Williamson
Cc: Eric Auger
Cc: Jean-Philippe Brucker
Cc: Joerg Roedel
Cc: Lu Baolu
Signed-off-by: Liu Yi L
Signed-off-by: Jacob Pan
---
drivers/iommu/intel-iommu.c | 16
include/linux/intel-iommu.h | 4
include/linux/iommu.h | 1 +
3 files changed, 21 inserti
PASIDs. Currently the quota is a global parameter applied to
all VFIO devices. In the future per-device quota might be supported too.
Cc: Kevin Tian
CC: Jacob Pan
Cc: Eric Auger
Cc: Jean-Philippe Brucker
Cc: Joerg Roedel
Cc: Lu Baolu
Suggested-by: Alex Williamson
Signed-off-by: Liu Yi L
---
v1
Existing iommu_gpasid_bind_data is used for binding guest page tables
to a specified PASID. While for unwind it, a unbind_data structure is
needed.
Cc: Kevin Tian
CC: Jacob Pan
Cc: Alex Williamson
Cc: Eric Auger
Cc: Jean-Philippe Brucker
Cc: Joerg Roedel
Cc: Lu Baolu
Signed-off-by: Liu Yi
inding request.
CC: Jacob Pan
Cc: Alex Williamson
Cc: Eric Auger
Cc: Jean-Philippe Brucker
Cc: Joerg Roedel
Cc: Lu Baolu
Signed-off-by: Jean-Philippe Brucker
Signed-off-by: Liu Yi L
Signed-off-by: Jacob Pan
---
v1 -> v2:
*) rename subject from "vfio/type1: Bind guest page
main requirement is to use the auxiliary domain associated with mdev.
Cc: Kevin Tian
CC: Jacob Pan
CC: Jun Tian
Cc: Alex Williamson
Cc: Eric Auger
Cc: Jean-Philippe Brucker
Cc: Joerg Roedel
Cc: Lu Baolu
Signed-off-by: Liu Yi L
---
v1 -> v2:
*) check the iommu_device to ensure the handl
: Jean-Philippe Brucker
Cc: Joerg Roedel
Cc: Lu Baolu
Signed-off-by: Yi Sun
Signed-off-by: Liu Yi L
---
drivers/iommu/intel-svm.c | 14 --
drivers/iommu/iommu.c | 4 ++--
include/linux/intel-iommu.h | 3 ++-
include/linux/iommu.h | 8 +---
4 files changed, 21
: Liu Yi L
---
drivers/vfio/vfio_iommu_type1.c | 183 +++-
1 file changed, 105 insertions(+), 78 deletions(-)
diff --git a/drivers/vfio/vfio_iommu_type1.c b/drivers/vfio/vfio_iommu_type1.c
index cc1d647..402aad3 100644
--- a/drivers/vfio/vfio_iommu_type1.c
+++ b
RFC v2:
https://lore.kernel.org/linux-iommu/1571919983-3231-1-git-send-email-yi.l@intel.com/
- RFC v1 -> v2:
Dropped vfio: VFIO_IOMMU_ATTACH/DETACH_PASID_TABLE.
RFC v1:
https://lore.kernel.org/linux-iommu/1562324772-3084-1-git-send-email-yi.l@intel.com/
Hi Alex,
> From: Alex Williamson
> Sent: Thursday, April 16, 2020 10:41 PM
> To: Liu, Yi L
> Subject: Re: [PATCH v1 7/8] vfio/type1: Add VFIO_IOMMU_CACHE_INVALIDATE
>
> On Thu, 16 Apr 2020 10:40:03 +
> "Liu, Yi L" wrote:
>
> > Hi Alex,
> > St
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