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[PATCH v5 03/13] backends/iommufd: Extend iommufd_backend_get_device_inf
From: |
Joao Martins |
Subject: |
[PATCH v5 03/13] backends/iommufd: Extend iommufd_backend_get_device_info() to fetch HW capabilities |
Date: |
Fri, 19 Jul 2024 13:04:51 +0100 |
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 9edfec604595..57d502a1c79a 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 84fefbc9ee7a..2b3d51af26d2 100644
--- a/backends/iommufd.c
+++ b/backends/iommufd.c
@@ -210,7 +210,7 @@ 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),
@@ -226,6 +226,8 @@ 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 c2f158e60386..604eaa4d9a5d 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;
}
--
2.17.2
- [PATCH v5 04/13] vfio/iommufd: Return errno in iommufd_cdev_attach_ioas_hwpt(), (continued)
[PATCH v5 03/13] backends/iommufd: Extend iommufd_backend_get_device_info() to fetch HW capabilities,
Joao Martins <=
[PATCH v5 13/13] vfio/common: Allow disabling device dirty page tracking, Joao Martins, 2024/07/19
[PATCH v5 05/13] vfio/iommufd: Introduce auto domain creation, Joao Martins, 2024/07/19
Re: [PATCH v5 00/13] hw/iommufd: IOMMUFD Dirty Tracking, Joao Martins, 2024/07/19
[PATCH v5.1 12/13] vfio/migration: Don't block migration device dirty tracking is unsupported, Joao Martins, 2024/07/19
Re: [PATCH v5 00/13] hw/iommufd: IOMMUFD Dirty Tracking, Cédric Le Goater, 2024/07/22