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envelope-from=joao.m.martins@oracle.com; helo=mx0a-00069f02.pphosted.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_MED=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Fetch capabilities from IOMMU device and add a capability to host-iommu-device to reflect whether backing IOMMU has dirty tracking. This is in preparation to relax the migration eligibility when device doesn't have dirty tracking. Signed-off-by: Joao Martins --- include/sysemu/host_iommu_device.h | 2 ++ backends/iommufd.c | 2 ++ hw/vfio/iommufd.c | 1 + 3 files changed, 5 insertions(+) diff --git a/include/sysemu/host_iommu_device.h b/include/sysemu/host_iommu_device.h index ee6c813c8b22..d38a31693482 100644 --- a/include/sysemu/host_iommu_device.h +++ b/include/sysemu/host_iommu_device.h @@ -25,6 +25,7 @@ typedef struct HostIOMMUDeviceCaps { uint32_t type; uint8_t aw_bits; + bool dirty_tracking; } HostIOMMUDeviceCaps; #define TYPE_HOST_IOMMU_DEVICE "host-iommu-device" @@ -97,6 +98,7 @@ struct HostIOMMUDeviceClass { */ #define HOST_IOMMU_DEVICE_CAP_IOMMU_TYPE 0 #define HOST_IOMMU_DEVICE_CAP_AW_BITS 1 +#define HOST_IOMMU_DEVICE_CAP_DIRTY_TRACKING 2 #define HOST_IOMMU_DEVICE_CAP_AW_BITS_MAX 64 #endif diff --git a/backends/iommufd.c b/backends/iommufd.c index b2d3bbd7c31b..9400d51004f0 100644 --- a/backends/iommufd.c +++ b/backends/iommufd.c @@ -314,6 +314,8 @@ static int hiod_iommufd_get_cap(HostIOMMUDevice *hiod, int cap, Error **errp) switch (cap) { case HOST_IOMMU_DEVICE_CAP_IOMMU_TYPE: return caps->type; + case HOST_IOMMU_DEVICE_CAP_DIRTY_TRACKING: + return caps->dirty_tracking; case HOST_IOMMU_DEVICE_CAP_AW_BITS: return caps->aw_bits; default: diff --git a/hw/vfio/iommufd.c b/hw/vfio/iommufd.c index 9fad47baed9e..2678801f1cad 100644 --- a/hw/vfio/iommufd.c +++ b/hw/vfio/iommufd.c @@ -832,6 +832,7 @@ static bool hiod_iommufd_vfio_realize(HostIOMMUDevice *hiod, void *opaque, hiod->name = g_strdup(vdev->name); caps->type = type; caps->aw_bits = vfio_device_get_aw_bits(vdev); + caps->dirty_tracking = (hw_caps & IOMMU_HW_CAP_DIRTY_TRACKING); } return true;