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Groups > linux.kernel > #1669519
| From | Alex Williamson <alex.williamson@redhat.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH v2 4/9] iommu: Add driver-not-bound notification |
| Date | 2017-06-19 19:20 +0200 |
| Message-ID | <tU8vg-5zu-5@gated-at.bofh.it> (permalink) |
| References | <tU8vf-5zu-1@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
The driver core supports a BUS_NOTIFY_DRIVER_NOT_BOUND notification sent if a driver fails to bind to a device. Extend IOMMU group notifications to include a version of this. Signed-off-by: Alex Williamson <alex.williamson@redhat.com> Acked-by: Joerg Roedel <jroedel@suse.de> Reviewed-by: Eric Auger <eric.auger@redhat.com> --- drivers/iommu/iommu.c | 3 +++ include/linux/iommu.h | 1 + 2 files changed, 4 insertions(+) diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c index cf7ca7e70777..1a59b3626ab2 100644 --- a/drivers/iommu/iommu.c +++ b/drivers/iommu/iommu.c @@ -1139,6 +1139,9 @@ static int iommu_bus_notifier(struct notifier_block *nb, case BUS_NOTIFY_UNBOUND_DRIVER: group_action = IOMMU_GROUP_NOTIFY_UNBOUND_DRIVER; break; + case BUS_NOTIFY_DRIVER_NOT_BOUND: + group_action = IOMMU_GROUP_NOTIFY_DRIVER_NOT_BOUND; + break; } if (group_action) diff --git a/include/linux/iommu.h b/include/linux/iommu.h index 2cb54adc4a33..5f6b01398bc1 100644 --- a/include/linux/iommu.h +++ b/include/linux/iommu.h @@ -271,6 +271,7 @@ static inline void iommu_device_set_fwnode(struct iommu_device *iommu, #define IOMMU_GROUP_NOTIFY_BOUND_DRIVER 4 /* Post Driver bind */ #define IOMMU_GROUP_NOTIFY_UNBIND_DRIVER 5 /* Pre Driver unbind */ #define IOMMU_GROUP_NOTIFY_UNBOUND_DRIVER 6 /* Post Driver unbind */ +#define IOMMU_GROUP_NOTIFY_DRIVER_NOT_BOUND 7 /* Driver bind failed */ extern int bus_set_iommu(struct bus_type *bus, const struct iommu_ops *ops); extern bool iommu_present(struct bus_type *bus);
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[PATCH v2 0/9] vfio: Fix release ordering races and use driver_override Alex Williamson <alex.williamson@redhat.com> - 2017-06-19 19:20 +0200
[PATCH v2 7/9] vfio: Use driver_override to avert binding to compromising drivers Alex Williamson <alex.williamson@redhat.com> - 2017-06-19 19:20 +0200
[PATCH v2 4/9] iommu: Add driver-not-bound notification Alex Williamson <alex.williamson@redhat.com> - 2017-06-19 19:20 +0200
[PATCH v2 1/9] vfio: Fix group release deadlock Alex Williamson <alex.williamson@redhat.com> - 2017-06-19 19:20 +0200
[PATCH v2 9/9] vfio: Add AMBA driver_override support Alex Williamson <alex.williamson@redhat.com> - 2017-06-19 19:20 +0200
[PATCH v2 3/9] vfio: New external user group/file match Alex Williamson <alex.williamson@redhat.com> - 2017-06-19 19:20 +0200
Re: [PATCH v2 3/9] vfio: New external user group/file match kbuild test robot <lkp@intel.com> - 2017-06-20 07:10 +0200
[PATCH v2 6/9] vfio: Register pci, platform, amba, and mdev bus drivers Alex Williamson <alex.williamson@redhat.com> - 2017-06-19 19:20 +0200
[PATCH v2 8/9] amba: Export amba_bustype Alex Williamson <alex.williamson@redhat.com> - 2017-06-19 19:20 +0200
Re: [PATCH v2 8/9] amba: Export amba_bustype Russell King - ARM Linux <linux@armlinux.org.uk> - 2017-06-19 19:40 +0200
Re: [PATCH v2 8/9] amba: Export amba_bustype Alex Williamson <alex.williamson@redhat.com> - 2017-06-19 20:00 +0200
[PATCH v2 2/9] kvm-vfio: Decouple only when we match a group Alex Williamson <alex.williamson@redhat.com> - 2017-06-19 19:20 +0200
Re: [PATCH v2 2/9] kvm-vfio: Decouple only when we match a group Alexey Kardashevskiy <aik@ozlabs.ru> - 2017-06-20 04:40 +0200
Re: [PATCH v2 2/9] kvm-vfio: Decouple only when we match a group Alex Williamson <alex.williamson@redhat.com> - 2017-06-20 04:50 +0200
[PATCH v2 5/9] vfio: Create interface for vfio bus drivers to register Alex Williamson <alex.williamson@redhat.com> - 2017-06-19 19:20 +0200
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