From: "Liu, Yi L" <yi.l.liu@intel.com> To: qemu-devel@nongnu.org, david@gibson.dropbear.id.au, pbonzini@redhat.com, alex.williamson@redhat.com, peterx@redhat.com Cc: mst@redhat.com, eric.auger@redhat.com, kevin.tian@intel.com, yi.l.liu@intel.com, jun.j.tian@intel.com, yi.y.sun@intel.com, kvm@vger.kernel.org, hao.wu@intel.com, Jacob Pan <jacob.jun.pan@linux.intel.com>, Yi Sun <yi.y.sun@linux.intel.com> Subject: [RFC v3 11/25] vfio: get stage-1 pasid formats from Kernel Date: Wed, 29 Jan 2020 04:16:42 -0800 [thread overview] Message-ID: <1580300216-86172-12-git-send-email-yi.l.liu@intel.com> (raw) In-Reply-To: <1580300216-86172-1-git-send-email-yi.l.liu@intel.com> From: Liu Yi L <yi.l.liu@intel.com> VFIO checks IOMMU UAPI version when it finds Kernel supports VFIO_TYPE1_NESTING_IOMMU. It is enough for UAPI compatibility check. However, IOMMU UAPI may support multiple stage-1 pasid formats in a specific UAPI version, which is highly possible since IOMMU UAPI supports stage-1 formats across all IOMMU vendors. So VFIO needs to get the supported formats from Kernel and tell vIOMMU. Let vIOMMU select proper format when setup dual stage DMA translation. This patch gets the stage-1 pasid format from kernel by using IOCTL VFIO_IOMMU_GET_INFO and pass the supported format to vIOMMU by the DualStageIOMMUObject instance which has been registered to vIOMMU. This patch referred some code from Shameer Kolothum. https://lists.gnu.org/archive/html/qemu-devel/2018-05/msg03759.html Cc: Kevin Tian <kevin.tian@intel.com> Cc: Jacob Pan <jacob.jun.pan@linux.intel.com> Cc: Peter Xu <peterx@redhat.com> Cc: Eric Auger <eric.auger@redhat.com> Cc: Yi Sun <yi.y.sun@linux.intel.com> Cc: David Gibson <david@gibson.dropbear.id.au> Cc: Alex Williamson <alex.williamson@redhat.com> Signed-off-by: Shameer Kolothum <shameerali.kolothum.thodi@huawei.com> Signed-off-by: Liu Yi L <yi.l.liu@intel.com> --- hw/iommu/dual_stage_iommu.c | 5 ++- hw/vfio/common.c | 85 ++++++++++++++++++++++++++++++++++++- include/hw/iommu/dual_stage_iommu.h | 10 ++++- 3 files changed, 97 insertions(+), 3 deletions(-) diff --git a/hw/iommu/dual_stage_iommu.c b/hw/iommu/dual_stage_iommu.c index be4179d..d5a7168 100644 --- a/hw/iommu/dual_stage_iommu.c +++ b/hw/iommu/dual_stage_iommu.c @@ -48,9 +48,12 @@ int ds_iommu_pasid_free(DualStageIOMMUObject *dsi_obj, uint32_t pasid) } void ds_iommu_object_init(DualStageIOMMUObject *dsi_obj, - DualStageIOMMUOps *ops) + DualStageIOMMUOps *ops, + DualStageIOMMUInfo *uinfo) { dsi_obj->ops = ops; + + dsi_obj->uinfo.pasid_format = uinfo->pasid_format; } void ds_iommu_object_destroy(DualStageIOMMUObject *dsi_obj) diff --git a/hw/vfio/common.c b/hw/vfio/common.c index fc1723d..a07824b 100644 --- a/hw/vfio/common.c +++ b/hw/vfio/common.c @@ -1182,10 +1182,84 @@ static int vfio_get_iommu_type(VFIOContainer *container, static struct DualStageIOMMUOps vfio_ds_iommu_ops = { }; +static int vfio_get_iommu_info(VFIOContainer *container, + struct vfio_iommu_type1_info **info) +{ + + size_t argsz = sizeof(struct vfio_iommu_type1_info); + + + *info = g_malloc0(argsz); + +retry: + (*info)->argsz = argsz; + + if (ioctl(container->fd, VFIO_IOMMU_GET_INFO, *info)) { + g_free(*info); + *info = NULL; + return -errno; + } + + if (((*info)->argsz > argsz)) { + argsz = (*info)->argsz; + *info = g_realloc(*info, argsz); + goto retry; + } + + return 0; +} + +static struct vfio_info_cap_header * +vfio_get_iommu_info_cap(struct vfio_iommu_type1_info *info, uint16_t id) +{ + struct vfio_info_cap_header *hdr; + void *ptr = info; + + if (!(info->flags & VFIO_IOMMU_INFO_CAPS)) { + return NULL; + } + + for (hdr = ptr + info->cap_offset; hdr != ptr; hdr = ptr + hdr->next) { + if (hdr->id == id) { + return hdr; + } + } + + return NULL; +} + +static int vfio_get_nesting_iommu_format(VFIOContainer *container, + uint32_t *pasid_format) +{ + struct vfio_iommu_type1_info *info; + struct vfio_info_cap_header *hdr; + struct vfio_iommu_type1_info_cap_nesting *cap; + + if (vfio_get_iommu_info(container, &info)) { + return -errno; + } + + hdr = vfio_get_iommu_info_cap(info, + VFIO_IOMMU_TYPE1_INFO_CAP_NESTING); + if (!hdr) { + g_free(info); + return -errno; + } + + cap = container_of(hdr, + struct vfio_iommu_type1_info_cap_nesting, header); + *pasid_format = cap->pasid_format; + + g_free(info); + return 0; +} + static int vfio_init_container(VFIOContainer *container, int group_fd, Error **errp) { int iommu_type, ret; + uint32_t format; + DualStageIOMMUInfo uinfo; iommu_type = vfio_get_iommu_type(container, errp); if (iommu_type < 0) { @@ -1214,7 +1288,16 @@ static int vfio_init_container(VFIOContainer *container, int group_fd, } if (iommu_type == VFIO_TYPE1_NESTING_IOMMU) { - ds_iommu_object_init(&container->dsi_obj, &vfio_ds_iommu_ops); + if (vfio_get_nesting_iommu_format(container, &format)) { + error_setg_errno(errp, errno, + "Failed to get nesting iommu format"); + return -errno; + } + + uinfo.pasid_format = format; + ds_iommu_object_init(&container->dsi_obj, + &vfio_ds_iommu_ops, &uinfo); + if (iommu_context_register_ds_iommu(container->iommu_ctx, &container->dsi_obj)) { /* diff --git a/include/hw/iommu/dual_stage_iommu.h b/include/hw/iommu/dual_stage_iommu.h index e9891e3..c6100b4 100644 --- a/include/hw/iommu/dual_stage_iommu.h +++ b/include/hw/iommu/dual_stage_iommu.h @@ -23,12 +23,14 @@ #define HW_DS_IOMMU_H #include "qemu/queue.h" +#include <linux/iommu.h> #ifndef CONFIG_USER_ONLY #include "exec/hwaddr.h" #endif typedef struct DualStageIOMMUObject DualStageIOMMUObject; typedef struct DualStageIOMMUOps DualStageIOMMUOps; +typedef struct DualStageIOMMUInfo DualStageIOMMUInfo; struct DualStageIOMMUOps { /* Allocate pasid from DualStageIOMMU (a.k.a. host IOMMU) */ @@ -41,11 +43,16 @@ struct DualStageIOMMUOps { uint32_t pasid); }; +struct DualStageIOMMUInfo { + uint32_t pasid_format; +}; + /* * This is an abstraction of Dual-stage IOMMU. */ struct DualStageIOMMUObject { DualStageIOMMUOps *ops; + DualStageIOMMUInfo uinfo; }; int ds_iommu_pasid_alloc(DualStageIOMMUObject *dsi_obj, uint32_t min, @@ -53,7 +60,8 @@ int ds_iommu_pasid_alloc(DualStageIOMMUObject *dsi_obj, uint32_t min, int ds_iommu_pasid_free(DualStageIOMMUObject *dsi_obj, uint32_t pasid); void ds_iommu_object_init(DualStageIOMMUObject *dsi_obj, - DualStageIOMMUOps *ops); + DualStageIOMMUOps *ops, + DualStageIOMMUInfo *uinfo); void ds_iommu_object_destroy(DualStageIOMMUObject *dsi_obj); #endif -- 2.7.4
WARNING: multiple messages have this Message-ID (diff)
From: "Liu, Yi L" <yi.l.liu@intel.com> To: qemu-devel@nongnu.org, david@gibson.dropbear.id.au, pbonzini@redhat.com, alex.williamson@redhat.com, peterx@redhat.com Cc: kevin.tian@intel.com, yi.l.liu@intel.com, Yi Sun <yi.y.sun@linux.intel.com>, kvm@vger.kernel.org, mst@redhat.com, jun.j.tian@intel.com, eric.auger@redhat.com, yi.y.sun@intel.com, Jacob Pan <jacob.jun.pan@linux.intel.com>, hao.wu@intel.com Subject: [RFC v3 11/25] vfio: get stage-1 pasid formats from Kernel Date: Wed, 29 Jan 2020 04:16:42 -0800 [thread overview] Message-ID: <1580300216-86172-12-git-send-email-yi.l.liu@intel.com> (raw) In-Reply-To: <1580300216-86172-1-git-send-email-yi.l.liu@intel.com> From: Liu Yi L <yi.l.liu@intel.com> VFIO checks IOMMU UAPI version when it finds Kernel supports VFIO_TYPE1_NESTING_IOMMU. It is enough for UAPI compatibility check. However, IOMMU UAPI may support multiple stage-1 pasid formats in a specific UAPI version, which is highly possible since IOMMU UAPI supports stage-1 formats across all IOMMU vendors. So VFIO needs to get the supported formats from Kernel and tell vIOMMU. Let vIOMMU select proper format when setup dual stage DMA translation. This patch gets the stage-1 pasid format from kernel by using IOCTL VFIO_IOMMU_GET_INFO and pass the supported format to vIOMMU by the DualStageIOMMUObject instance which has been registered to vIOMMU. This patch referred some code from Shameer Kolothum. https://lists.gnu.org/archive/html/qemu-devel/2018-05/msg03759.html Cc: Kevin Tian <kevin.tian@intel.com> Cc: Jacob Pan <jacob.jun.pan@linux.intel.com> Cc: Peter Xu <peterx@redhat.com> Cc: Eric Auger <eric.auger@redhat.com> Cc: Yi Sun <yi.y.sun@linux.intel.com> Cc: David Gibson <david@gibson.dropbear.id.au> Cc: Alex Williamson <alex.williamson@redhat.com> Signed-off-by: Shameer Kolothum <shameerali.kolothum.thodi@huawei.com> Signed-off-by: Liu Yi L <yi.l.liu@intel.com> --- hw/iommu/dual_stage_iommu.c | 5 ++- hw/vfio/common.c | 85 ++++++++++++++++++++++++++++++++++++- include/hw/iommu/dual_stage_iommu.h | 10 ++++- 3 files changed, 97 insertions(+), 3 deletions(-) diff --git a/hw/iommu/dual_stage_iommu.c b/hw/iommu/dual_stage_iommu.c index be4179d..d5a7168 100644 --- a/hw/iommu/dual_stage_iommu.c +++ b/hw/iommu/dual_stage_iommu.c @@ -48,9 +48,12 @@ int ds_iommu_pasid_free(DualStageIOMMUObject *dsi_obj, uint32_t pasid) } void ds_iommu_object_init(DualStageIOMMUObject *dsi_obj, - DualStageIOMMUOps *ops) + DualStageIOMMUOps *ops, + DualStageIOMMUInfo *uinfo) { dsi_obj->ops = ops; + + dsi_obj->uinfo.pasid_format = uinfo->pasid_format; } void ds_iommu_object_destroy(DualStageIOMMUObject *dsi_obj) diff --git a/hw/vfio/common.c b/hw/vfio/common.c index fc1723d..a07824b 100644 --- a/hw/vfio/common.c +++ b/hw/vfio/common.c @@ -1182,10 +1182,84 @@ static int vfio_get_iommu_type(VFIOContainer *container, static struct DualStageIOMMUOps vfio_ds_iommu_ops = { }; +static int vfio_get_iommu_info(VFIOContainer *container, + struct vfio_iommu_type1_info **info) +{ + + size_t argsz = sizeof(struct vfio_iommu_type1_info); + + + *info = g_malloc0(argsz); + +retry: + (*info)->argsz = argsz; + + if (ioctl(container->fd, VFIO_IOMMU_GET_INFO, *info)) { + g_free(*info); + *info = NULL; + return -errno; + } + + if (((*info)->argsz > argsz)) { + argsz = (*info)->argsz; + *info = g_realloc(*info, argsz); + goto retry; + } + + return 0; +} + +static struct vfio_info_cap_header * +vfio_get_iommu_info_cap(struct vfio_iommu_type1_info *info, uint16_t id) +{ + struct vfio_info_cap_header *hdr; + void *ptr = info; + + if (!(info->flags & VFIO_IOMMU_INFO_CAPS)) { + return NULL; + } + + for (hdr = ptr + info->cap_offset; hdr != ptr; hdr = ptr + hdr->next) { + if (hdr->id == id) { + return hdr; + } + } + + return NULL; +} + +static int vfio_get_nesting_iommu_format(VFIOContainer *container, + uint32_t *pasid_format) +{ + struct vfio_iommu_type1_info *info; + struct vfio_info_cap_header *hdr; + struct vfio_iommu_type1_info_cap_nesting *cap; + + if (vfio_get_iommu_info(container, &info)) { + return -errno; + } + + hdr = vfio_get_iommu_info_cap(info, + VFIO_IOMMU_TYPE1_INFO_CAP_NESTING); + if (!hdr) { + g_free(info); + return -errno; + } + + cap = container_of(hdr, + struct vfio_iommu_type1_info_cap_nesting, header); + *pasid_format = cap->pasid_format; + + g_free(info); + return 0; +} + static int vfio_init_container(VFIOContainer *container, int group_fd, Error **errp) { int iommu_type, ret; + uint32_t format; + DualStageIOMMUInfo uinfo; iommu_type = vfio_get_iommu_type(container, errp); if (iommu_type < 0) { @@ -1214,7 +1288,16 @@ static int vfio_init_container(VFIOContainer *container, int group_fd, } if (iommu_type == VFIO_TYPE1_NESTING_IOMMU) { - ds_iommu_object_init(&container->dsi_obj, &vfio_ds_iommu_ops); + if (vfio_get_nesting_iommu_format(container, &format)) { + error_setg_errno(errp, errno, + "Failed to get nesting iommu format"); + return -errno; + } + + uinfo.pasid_format = format; + ds_iommu_object_init(&container->dsi_obj, + &vfio_ds_iommu_ops, &uinfo); + if (iommu_context_register_ds_iommu(container->iommu_ctx, &container->dsi_obj)) { /* diff --git a/include/hw/iommu/dual_stage_iommu.h b/include/hw/iommu/dual_stage_iommu.h index e9891e3..c6100b4 100644 --- a/include/hw/iommu/dual_stage_iommu.h +++ b/include/hw/iommu/dual_stage_iommu.h @@ -23,12 +23,14 @@ #define HW_DS_IOMMU_H #include "qemu/queue.h" +#include <linux/iommu.h> #ifndef CONFIG_USER_ONLY #include "exec/hwaddr.h" #endif typedef struct DualStageIOMMUObject DualStageIOMMUObject; typedef struct DualStageIOMMUOps DualStageIOMMUOps; +typedef struct DualStageIOMMUInfo DualStageIOMMUInfo; struct DualStageIOMMUOps { /* Allocate pasid from DualStageIOMMU (a.k.a. host IOMMU) */ @@ -41,11 +43,16 @@ struct DualStageIOMMUOps { uint32_t pasid); }; +struct DualStageIOMMUInfo { + uint32_t pasid_format; +}; + /* * This is an abstraction of Dual-stage IOMMU. */ struct DualStageIOMMUObject { DualStageIOMMUOps *ops; + DualStageIOMMUInfo uinfo; }; int ds_iommu_pasid_alloc(DualStageIOMMUObject *dsi_obj, uint32_t min, @@ -53,7 +60,8 @@ int ds_iommu_pasid_alloc(DualStageIOMMUObject *dsi_obj, uint32_t min, int ds_iommu_pasid_free(DualStageIOMMUObject *dsi_obj, uint32_t pasid); void ds_iommu_object_init(DualStageIOMMUObject *dsi_obj, - DualStageIOMMUOps *ops); + DualStageIOMMUOps *ops, + DualStageIOMMUInfo *uinfo); void ds_iommu_object_destroy(DualStageIOMMUObject *dsi_obj); #endif -- 2.7.4
next prev parent reply other threads:[~2020-01-29 12:11 UTC|newest] Thread overview: 136+ messages / expand[flat|nested] mbox.gz Atom feed top 2020-01-29 12:16 [RFC v3 00/25] intel_iommu: expose Shared Virtual Addressing to VMs Liu, Yi L 2020-01-29 12:16 ` Liu, Yi L 2020-01-29 12:16 ` [RFC v3 01/25] hw/pci: modify pci_setup_iommu() to set PCIIOMMUOps Liu, Yi L 2020-01-29 12:16 ` Liu, Yi L 2020-01-29 12:16 ` [RFC v3 02/25] hw/iommu: introduce DualStageIOMMUObject Liu, Yi L 2020-01-29 12:16 ` Liu, Yi L 2020-01-31 3:59 ` David Gibson 2020-01-31 3:59 ` David Gibson 2020-01-31 11:42 ` Liu, Yi L 2020-01-31 11:42 ` Liu, Yi L 2020-02-12 6:32 ` David Gibson 2020-02-12 6:32 ` David Gibson 2020-01-29 12:16 ` [RFC v3 03/25] hw/iommu: introduce IOMMUContext Liu, Yi L 2020-01-29 12:16 ` Liu, Yi L 2020-01-31 4:06 ` David Gibson 2020-01-31 4:06 ` David Gibson 2020-01-31 11:42 ` Liu, Yi L 2020-01-31 11:42 ` Liu, Yi L 2020-02-11 16:58 ` Peter Xu 2020-02-11 16:58 ` Peter Xu 2020-02-12 7:15 ` Liu, Yi L 2020-02-12 7:15 ` Liu, Yi L 2020-02-12 15:59 ` Peter Xu 2020-02-12 15:59 ` Peter Xu 2020-02-13 2:46 ` Liu, Yi L 2020-02-13 2:46 ` Liu, Yi L 2020-02-14 5:36 ` David Gibson 2020-02-14 5:36 ` David Gibson 2020-02-15 6:25 ` Liu, Yi L 2020-02-15 6:25 ` Liu, Yi L 2020-01-29 12:16 ` [RFC v3 04/25] hw/pci: introduce pci_device_iommu_context() Liu, Yi L 2020-01-29 12:16 ` Liu, Yi L 2020-01-29 12:16 ` [RFC v3 05/25] intel_iommu: provide get_iommu_context() callback Liu, Yi L 2020-01-29 12:16 ` Liu, Yi L 2020-01-29 12:16 ` [RFC v3 06/25] scripts/update-linux-headers: Import iommu.h Liu, Yi L 2020-01-29 12:16 ` Liu, Yi L 2020-01-29 12:25 ` Cornelia Huck 2020-01-29 12:25 ` Cornelia Huck 2020-01-31 11:40 ` Liu, Yi L 2020-01-31 11:40 ` Liu, Yi L 2020-01-29 12:16 ` [RFC v3 07/25] header file update VFIO/IOMMU vSVA APIs Liu, Yi L 2020-01-29 12:16 ` Liu, Yi L 2020-01-29 12:28 ` Cornelia Huck 2020-01-29 12:28 ` Cornelia Huck 2020-01-31 11:41 ` Liu, Yi L 2020-01-31 11:41 ` Liu, Yi L 2020-01-29 12:16 ` [RFC v3 08/25] vfio: pass IOMMUContext into vfio_get_group() Liu, Yi L 2020-01-29 12:16 ` Liu, Yi L 2020-01-29 12:16 ` [RFC v3 09/25] vfio: check VFIO_TYPE1_NESTING_IOMMU support Liu, Yi L 2020-01-29 12:16 ` Liu, Yi L 2020-02-11 19:08 ` Peter Xu 2020-02-11 19:08 ` Peter Xu 2020-02-12 7:16 ` Liu, Yi L 2020-02-12 7:16 ` Liu, Yi L 2020-01-29 12:16 ` [RFC v3 10/25] vfio: register DualStageIOMMUObject to vIOMMU Liu, Yi L 2020-01-29 12:16 ` Liu, Yi L 2020-01-29 12:16 ` Liu, Yi L [this message] 2020-01-29 12:16 ` [RFC v3 11/25] vfio: get stage-1 pasid formats from Kernel Liu, Yi L 2020-02-11 19:30 ` Peter Xu 2020-02-11 19:30 ` Peter Xu 2020-02-12 7:19 ` Liu, Yi L 2020-02-12 7:19 ` Liu, Yi L 2020-01-29 12:16 ` [RFC v3 12/25] vfio/common: add pasid_alloc/free support Liu, Yi L 2020-01-29 12:16 ` Liu, Yi L 2020-02-11 19:31 ` Peter Xu 2020-02-11 19:31 ` Peter Xu 2020-02-12 7:20 ` Liu, Yi L 2020-02-12 7:20 ` Liu, Yi L 2020-01-29 12:16 ` [RFC v3 13/25] intel_iommu: modify x-scalable-mode to be string option Liu, Yi L 2020-01-29 12:16 ` Liu, Yi L 2020-02-11 19:43 ` Peter Xu 2020-02-11 19:43 ` Peter Xu 2020-02-12 7:28 ` Liu, Yi L 2020-02-12 7:28 ` Liu, Yi L 2020-02-12 16:05 ` Peter Xu 2020-02-12 16:05 ` Peter Xu 2020-02-13 2:44 ` Liu, Yi L 2020-02-13 2:44 ` Liu, Yi L 2020-01-29 12:16 ` [RFC v3 14/25] intel_iommu: add virtual command capability support Liu, Yi L 2020-01-29 12:16 ` Liu, Yi L 2020-02-11 20:16 ` Peter Xu 2020-02-11 20:16 ` Peter Xu 2020-02-12 7:32 ` Liu, Yi L 2020-02-12 7:32 ` Liu, Yi L 2020-02-11 21:56 ` Peter Xu 2020-02-11 21:56 ` Peter Xu 2020-02-13 2:40 ` Liu, Yi L 2020-02-13 2:40 ` Liu, Yi L 2020-02-13 14:31 ` Peter Xu 2020-02-13 14:31 ` Peter Xu 2020-02-13 15:08 ` Peter Xu 2020-02-13 15:08 ` Peter Xu 2020-02-15 8:49 ` Liu, Yi L 2020-02-15 8:49 ` Liu, Yi L 2020-01-29 12:16 ` [RFC v3 15/25] intel_iommu: process pasid cache invalidation Liu, Yi L 2020-01-29 12:16 ` Liu, Yi L 2020-02-11 20:17 ` Peter Xu 2020-02-11 20:17 ` Peter Xu 2020-02-12 7:33 ` Liu, Yi L 2020-02-12 7:33 ` Liu, Yi L 2020-01-29 12:16 ` [RFC v3 16/25] intel_iommu: add PASID cache management infrastructure Liu, Yi L 2020-01-29 12:16 ` Liu, Yi L 2020-02-11 23:35 ` Peter Xu 2020-02-11 23:35 ` Peter Xu 2020-02-12 8:37 ` Liu, Yi L 2020-02-12 8:37 ` Liu, Yi L 2020-02-12 15:26 ` Peter Xu 2020-02-12 15:26 ` Peter Xu 2020-02-13 2:59 ` Liu, Yi L 2020-02-13 2:59 ` Liu, Yi L 2020-02-13 15:14 ` Peter Xu 2020-02-13 15:14 ` Peter Xu 2020-02-15 8:50 ` Liu, Yi L 2020-02-15 8:50 ` Liu, Yi L 2020-01-29 12:16 ` [RFC v3 17/25] vfio: add bind stage-1 page table support Liu, Yi L 2020-01-29 12:16 ` Liu, Yi L 2020-01-29 12:16 ` [RFC v3 18/25] intel_iommu: bind/unbind guest page table to host Liu, Yi L 2020-01-29 12:16 ` Liu, Yi L 2020-01-29 12:16 ` [RFC v3 19/25] intel_iommu: replay guest pasid bindings " Liu, Yi L 2020-01-29 12:16 ` Liu, Yi L 2020-01-29 12:16 ` [RFC v3 20/25] intel_iommu: replay pasid binds after context cache invalidation Liu, Yi L 2020-01-29 12:16 ` Liu, Yi L 2020-01-29 12:16 ` [RFC v3 21/25] intel_iommu: do not pass down pasid bind for PASID #0 Liu, Yi L 2020-01-29 12:16 ` Liu, Yi L 2020-01-29 12:16 ` [RFC v3 22/25] vfio: add support for flush iommu stage-1 cache Liu, Yi L 2020-01-29 12:16 ` Liu, Yi L 2020-01-29 12:16 ` [RFC v3 23/25] intel_iommu: process PASID-based iotlb invalidation Liu, Yi L 2020-01-29 12:16 ` Liu, Yi L 2020-01-29 12:16 ` [RFC v3 24/25] intel_iommu: propagate PASID-based iotlb invalidation to host Liu, Yi L 2020-01-29 12:16 ` Liu, Yi L 2020-01-29 12:16 ` [RFC v3 25/25] intel_iommu: process PASID-based Device-TLB invalidation Liu, Yi L 2020-01-29 12:16 ` Liu, Yi L 2020-01-29 13:44 ` [RFC v3 00/25] intel_iommu: expose Shared Virtual Addressing to VMs no-reply 2020-01-29 13:44 ` no-reply 2020-01-29 13:48 ` no-reply 2020-01-29 13:48 ` no-reply
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