From: Joao Martins <joao.m.martins@oracle.com>
The helper will be able to fetch vendor agnostic IOMMU capabilities
supported both by hardware and software. Right now it is only iommu dirty
tracking.
Signed-off-by: Joao Martins <joao.m.martins@oracle.com>
Reviewed-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
---
include/sysemu/iommufd.h | 2 +-
backends/iommufd.c | 4 +++-
hw/vfio/iommufd.c | 4 +++-
3 files changed, 7 insertions(+), 3 deletions(-)
diff --git a/include/sysemu/iommufd.h b/include/sysemu/iommufd.h
index 9edfec604595c7ed0e4032472bb73c9b4d2ea559..57d502a1c79a65e0447989f398e4e54c37839531 100644
--- a/include/sysemu/iommufd.h
+++ b/include/sysemu/iommufd.h
@@ -49,7 +49,7 @@ int iommufd_backend_unmap_dma(IOMMUFDBackend *be, uint32_t ioas_id,
hwaddr iova, ram_addr_t size);
bool iommufd_backend_get_device_info(IOMMUFDBackend *be, uint32_t devid,
uint32_t *type, void *data, uint32_t len,
- Error **errp);
+ uint64_t *caps, Error **errp);
#define TYPE_HOST_IOMMU_DEVICE_IOMMUFD TYPE_HOST_IOMMU_DEVICE "-iommufd"
#endif
diff --git a/backends/iommufd.c b/backends/iommufd.c
index cabd1b50025d6910d072fd61d8702765c7ffb7ef..48dfd39624740e05217fb55be98ff5e054a32670 100644
--- a/backends/iommufd.c
+++ b/backends/iommufd.c
@@ -209,7 +209,7 @@ int iommufd_backend_unmap_dma(IOMMUFDBackend *be, uint32_t ioas_id,
bool iommufd_backend_get_device_info(IOMMUFDBackend *be, uint32_t devid,
uint32_t *type, void *data, uint32_t len,
- Error **errp)
+ uint64_t *caps, Error **errp)
{
struct iommu_hw_info info = {
.size = sizeof(info),
@@ -225,6 +225,8 @@ bool iommufd_backend_get_device_info(IOMMUFDBackend *be, uint32_t devid,
g_assert(type);
*type = info.out_data_type;
+ g_assert(caps);
+ *caps = info.out_capabilities;
return true;
}
diff --git a/hw/vfio/iommufd.c b/hw/vfio/iommufd.c
index 7b5f87a1488111f7b88ce7588db4f5e5bd976978..7c1b9e0284a3e84f68d13031cd517bffc47376d8 100644
--- a/hw/vfio/iommufd.c
+++ b/hw/vfio/iommufd.c
@@ -628,11 +628,13 @@ static bool hiod_iommufd_vfio_realize(HostIOMMUDevice *hiod, void *opaque,
union {
struct iommu_hw_info_vtd vtd;
} data;
+ uint64_t hw_caps;
hiod->agent = opaque;
if (!iommufd_backend_get_device_info(vdev->iommufd, vdev->devid,
- &type, &data, sizeof(data), errp)) {
+ &type, &data, sizeof(data),
+ &hw_caps, errp)) {
return false;
}
--
2.45.2