From: Alexey Kardashevskiy <aik@ozlabs.ru>
To: linuxppc-dev@lists.ozlabs.org
Cc: "Jose Ricardo Ziviani" <joserz@linux.ibm.com>,
"Alexey Kardashevskiy" <aik@ozlabs.ru>,
"Alistair Popple" <alistair@popple.id.au>,
"Alex Williamson" <alex.williamson@redhat.com>,
kvm-ppc@vger.kernel.org, "Sam Bobroff" <sbobroff@linux.ibm.com>,
"Piotr Jaroszynski" <pjaroszynski@nvidia.com>,
"Oliver O'Halloran" <oohall@gmail.com>,
"Andrew Donnellan" <andrew.donnellan@au1.ibm.com>,
"Leonardo Augusto Guimarães Garcia" <lagarcia@br.ibm.com>,
"Reza Arbab" <arbab@linux.ibm.com>,
"David Gibson" <david@gibson.dropbear.id.au>
Subject: [PATCH kernel v3 21/22] vfio_pci: Allow regions to add own capabilities
Date: Tue, 13 Nov 2018 19:28:22 +1100 [thread overview]
Message-ID: <20181113082823.2440-22-aik@ozlabs.ru> (raw)
In-Reply-To: <20181113082823.2440-1-aik@ozlabs.ru>
VFIO regions already support region capabilities with a limited set of
fields. However the subdriver might have to report to the userspace
additional bits.
This adds an add_capability() hook to vfio_pci_regops.
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
---
Changes:
v3:
* removed confusing rationale for the patch, the next patch makes
use of it anyway
---
drivers/vfio/pci/vfio_pci_private.h | 3 +++
drivers/vfio/pci/vfio_pci.c | 6 ++++++
2 files changed, 9 insertions(+)
diff --git a/drivers/vfio/pci/vfio_pci_private.h b/drivers/vfio/pci/vfio_pci_private.h
index 86aab05..93c1738 100644
--- a/drivers/vfio/pci/vfio_pci_private.h
+++ b/drivers/vfio/pci/vfio_pci_private.h
@@ -62,6 +62,9 @@ struct vfio_pci_regops {
int (*mmap)(struct vfio_pci_device *vdev,
struct vfio_pci_region *region,
struct vm_area_struct *vma);
+ int (*add_capability)(struct vfio_pci_device *vdev,
+ struct vfio_pci_region *region,
+ struct vfio_info_cap *caps);
};
struct vfio_pci_region {
diff --git a/drivers/vfio/pci/vfio_pci.c b/drivers/vfio/pci/vfio_pci.c
index 4a6f7c0..6cb70cf 100644
--- a/drivers/vfio/pci/vfio_pci.c
+++ b/drivers/vfio/pci/vfio_pci.c
@@ -763,6 +763,12 @@ static long vfio_pci_ioctl(void *device_data,
if (ret)
return ret;
+ if (vdev->region[i].ops->add_capability) {
+ ret = vdev->region[i].ops->add_capability(vdev,
+ &vdev->region[i], &caps);
+ if (ret)
+ return ret;
+ }
}
}
--
2.17.1
next prev parent reply other threads:[~2018-11-13 9:07 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-11-13 8:28 [PATCH kernel v3 00/22] powerpc/powernv/npu, vfio: NVIDIA V100 + P9 passthrough Alexey Kardashevskiy
2018-11-13 8:28 ` [PATCH kernel v3 01/22] powerpc/ioda/npu: Call skiboot's hot reset hook when disabling NPU2 Alexey Kardashevskiy
2018-11-13 8:28 ` [PATCH kernel v3 02/22] powerpc/mm/iommu/vfio_spapr_tce: Change mm_iommu_get to reference a region Alexey Kardashevskiy
2018-11-15 5:32 ` David Gibson
2018-11-13 8:28 ` [PATCH kernel v3 03/22] powerpc/mm/iommu: Make mm_iommu_new() fail on existing regions Alexey Kardashevskiy
2018-11-15 5:38 ` David Gibson
2018-11-13 8:28 ` [PATCH kernel v3 04/22] powerpc/vfio/iommu/kvm: Do not pin device memory Alexey Kardashevskiy
2018-11-16 3:11 ` David Gibson
2018-11-13 8:28 ` [PATCH kernel v3 05/22] powerpc/powernv/npu: Add helper to access struct npu for NPU device Alexey Kardashevskiy
2018-11-14 3:42 ` Alistair Popple
2018-11-13 8:28 ` [PATCH kernel v3 06/22] powerpc/powernv: Detach npu struct from pnv_phb Alexey Kardashevskiy
2018-11-14 4:28 ` Alistair Popple
2018-11-19 7:18 ` Alexey Kardashevskiy
2018-11-13 8:28 ` [PATCH kernel v3 07/22] powerpc/powernv/npu: Move OPAL calls away from context manipulation Alexey Kardashevskiy
2018-11-14 4:57 ` Alistair Popple
2018-11-13 8:28 ` [PATCH kernel v3 08/22] powerpc/pseries/iommu: Allow dynamic window to start from zero Alexey Kardashevskiy
2018-11-13 8:28 ` [PATCH kernel v3 09/22] powerpc/pseries/iommu: Force default DMA window removal Alexey Kardashevskiy
2018-11-16 4:54 ` David Gibson
2018-11-19 7:28 ` Alexey Kardashevskiy
2018-11-13 8:28 ` [PATCH kernel v3 10/22] powerpc/pseries/iommu: Use memory@ nodes in max RAM address calculation Alexey Kardashevskiy
2018-11-16 5:23 ` David Gibson
2018-11-19 7:43 ` Alexey Kardashevskiy
2018-11-13 8:28 ` [PATCH kernel v3 11/22] powerpc/pseries/npu: Enable platform support Alexey Kardashevskiy
2018-11-16 5:25 ` David Gibson
2018-11-19 7:50 ` Alexey Kardashevskiy
2018-11-13 8:28 ` [PATCH kernel v3 12/22] powerpc/pseries: Remove IOMMU API support for non-LPAR systems Alexey Kardashevskiy
2018-11-13 8:28 ` [PATCH kernel v3 13/22] powerpc/powernv/pseries: Rework device adding to IOMMU groups Alexey Kardashevskiy
2018-11-13 8:28 ` [PATCH kernel v3 14/22] powerpc/iommu_api: Move IOMMU groups setup to a single place Alexey Kardashevskiy
2018-11-19 0:15 ` David Gibson
2018-11-13 8:28 ` [PATCH kernel v3 15/22] powerpc/powernv: Reference iommu_table while it is linked to a group Alexey Kardashevskiy
2018-11-19 0:20 ` David Gibson
2018-11-13 8:28 ` [PATCH kernel v3 16/22] powerpc/powernv: Add purge cache OPAL call Alexey Kardashevskiy
2018-11-19 0:21 ` David Gibson
2018-11-13 8:28 ` [PATCH kernel v3 17/22] powerpc/powernv/npu: Convert NPU IOMMU helpers to iommu_table_group_ops Alexey Kardashevskiy
2018-11-19 0:24 ` David Gibson
2018-11-13 8:28 ` [PATCH kernel v3 18/22] powerpc/powernv/npu: Add compound IOMMU groups Alexey Kardashevskiy
2018-11-19 1:12 ` David Gibson
2018-11-19 2:29 ` Alexey Kardashevskiy
2018-11-13 8:28 ` [PATCH kernel v3 19/22] powerpc/powernv/npu: Add release_ownership hook Alexey Kardashevskiy
2018-11-13 8:28 ` [PATCH kernel v3 20/22] vfio_pci: Allow mapping extra regions Alexey Kardashevskiy
2018-11-13 8:28 ` Alexey Kardashevskiy [this message]
2018-11-13 8:28 ` [PATCH kernel v3 22/22] vfio_pci: Add NVIDIA GV100GL [Tesla V100 SXM2] [10de:1db1] subdriver Alexey Kardashevskiy
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