From 21e8d3a3aa1627079088e2430946dea62bf5c703 Mon Sep 17 00:00:00 2001 From: Joao Martins Date: Mon, 22 Jul 2024 22:13:20 +0100 Subject: [PATCH] vfio/iommufd: Add hw_caps field to HostIOMMUDeviceCaps MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Store the value of @caps returned by iommufd_backend_get_device_info() in a new field HostIOMMUDeviceCaps::hw_caps. Right now the only value is whether device IOMMU supports dirty tracking (IOMMU_HW_CAP_DIRTY_TRACKING). This is in preparation for HostIOMMUDevice::realize() being called early during attach_device(). Signed-off-by: Joao Martins Reviewed-by: Cédric Le Goater Reviewed-by: Zhenzhong Duan Reviewed-by: Eric Auger --- hw/vfio/iommufd.c | 1 + include/sysemu/host_iommu_device.h | 4 ++++ 2 files changed, 5 insertions(+) diff --git a/hw/vfio/iommufd.c b/hw/vfio/iommufd.c index f1e7cf3e9c..fb87e64e44 100644 --- a/hw/vfio/iommufd.c +++ b/hw/vfio/iommufd.c @@ -725,6 +725,7 @@ static bool hiod_iommufd_vfio_realize(HostIOMMUDevice *hiod, void *opaque, hiod->name = g_strdup(vdev->name); caps->type = type; + caps->hw_caps = hw_caps; return true; } diff --git a/include/sysemu/host_iommu_device.h b/include/sysemu/host_iommu_device.h index d1c10ff7c2..809cced4ba 100644 --- a/include/sysemu/host_iommu_device.h +++ b/include/sysemu/host_iommu_device.h @@ -19,9 +19,13 @@ * struct HostIOMMUDeviceCaps - Define host IOMMU device capabilities. * * @type: host platform IOMMU type. + * + * @hw_caps: host platform IOMMU capabilities (e.g. on IOMMUFD this represents + * the @out_capabilities value returned from IOMMU_GET_HW_INFO ioctl) */ typedef struct HostIOMMUDeviceCaps { uint32_t type; + uint64_t hw_caps; } HostIOMMUDeviceCaps; #define TYPE_HOST_IOMMU_DEVICE "host-iommu-device"