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| author | Gavin Shan <gwshan@linux.vnet.ibm.com> | 2014-06-10 11:41:57 +1000 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2014-08-05 15:28:48 +1000 |
| commit | 1b69be5e8afc634f39ad695a6ab6aad0cf0975c7 (patch) | |
| tree | f87cc5eae17311b309c7498ce063eb33cc028fc3 /drivers/vfio/vfio_iommu_spapr_tce.c | |
| parent | 212d16cdca2d0f7708c9c1d284a845c22bfc90c4 (diff) | |
| download | linux-1b69be5e8afc634f39ad695a6ab6aad0cf0975c7.tar.gz linux-1b69be5e8afc634f39ad695a6ab6aad0cf0975c7.tar.bz2 linux-1b69be5e8afc634f39ad695a6ab6aad0cf0975c7.zip | |
drivers/vfio: EEH support for VFIO PCI device
The patch adds new IOCTL commands for sPAPR VFIO container device
to support EEH functionality for PCI devices, which have been passed
through from host to somebody else via VFIO.
Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Acked-by: Alexander Graf <agraf@suse.de>
Acked-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'drivers/vfio/vfio_iommu_spapr_tce.c')
| -rw-r--r-- | drivers/vfio/vfio_iommu_spapr_tce.c | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/drivers/vfio/vfio_iommu_spapr_tce.c b/drivers/vfio/vfio_iommu_spapr_tce.c index a84788ba662c..730b4ef3e0cc 100644 --- a/drivers/vfio/vfio_iommu_spapr_tce.c +++ b/drivers/vfio/vfio_iommu_spapr_tce.c @@ -156,7 +156,16 @@ static long tce_iommu_ioctl(void *iommu_data, switch (cmd) { case VFIO_CHECK_EXTENSION: - return (arg == VFIO_SPAPR_TCE_IOMMU) ? 1 : 0; + switch (arg) { + case VFIO_SPAPR_TCE_IOMMU: + ret = 1; + break; + default: + ret = vfio_spapr_iommu_eeh_ioctl(NULL, cmd, arg); + break; + } + + return (ret < 0) ? 0 : ret; case VFIO_IOMMU_SPAPR_TCE_GET_INFO: { struct vfio_iommu_spapr_tce_info info; @@ -283,6 +292,12 @@ static long tce_iommu_ioctl(void *iommu_data, tce_iommu_disable(container); mutex_unlock(&container->lock); return 0; + case VFIO_EEH_PE_OP: + if (!container->tbl || !container->tbl->it_group) + return -ENODEV; + + return vfio_spapr_iommu_eeh_ioctl(container->tbl->it_group, + cmd, arg); } return -ENOTTY; |