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| author | Joao Martins <joao.m.martins@oracle.com> | 2024-07-19 13:04:51 +0100 |
|---|---|---|
| committer | Cédric Le Goater <clg@redhat.com> | 2024-07-23 17:14:52 +0200 |
| commit | 2d1bf2589736b3714f3940d360404732ac13019c (patch) | |
| tree | d415bb2dc8377c5c42208a8c6b1ca3359c8f597c | |
| parent | 9f17604195c03580b16c3cc5631c86f3894dd442 (diff) | |
| download | qemu-2d1bf2589736b3714f3940d360404732ac13019c.zip qemu-2d1bf2589736b3714f3940d360404732ac13019c.tar.gz qemu-2d1bf2589736b3714f3940d360404732ac13019c.tar.bz2 | |
backends/iommufd: Extend iommufd_backend_get_device_info() to fetch HW capabilities
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>
| -rw-r--r-- | backends/iommufd.c | 4 | ||||
| -rw-r--r-- | hw/vfio/iommufd.c | 4 | ||||
| -rw-r--r-- | include/sysemu/iommufd.h | 2 |
3 files changed, 7 insertions, 3 deletions
diff --git a/backends/iommufd.c b/backends/iommufd.c index cabd1b5..48dfd39 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 7b5f87a..7c1b9e0 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; } diff --git a/include/sysemu/iommufd.h b/include/sysemu/iommufd.h index 9edfec6..57d502a 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 |