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Merge tag 'vfio-v4.21-rc1' of git://github.com/awilliam/linux-vfio

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Pull VFIO updates from Alex Williamson:

 - Replace global vfio-pci lock with per bus lock to allow concurrent
   open and release (Alex Williamson)

 - Declare mdev function as static (Paolo Cretaro)

 - Convert char to u8 in mdev/mtty sample driver (Nathan Chancellor)

* tag 'vfio-v4.21-rc1' of git://github.com/awilliam/linux-vfio:
  vfio-mdev/samples: Use u8 instead of char for handle functions
  vfio/mdev: add static modifier to add_mdev_supported_type
  vfio/pci: Parallelize device open and release
This commit is contained in:
Linus Torvalds
2018-12-28 19:41:58 -08:00
parent f346b0becb 8ba35b3a00
commit 1984f65c2f
4 changed files with 157 additions and 39 deletions
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6
drivers/vfio/pci/vfio_pci_private.h
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@@ -82,6 +82,11 @@ struct vfio_pci_dummy_resource {
struct list_head res_next;
};
struct vfio_pci_reflck {
struct kref kref;
struct mutex lock;
};
struct vfio_pci_device {
struct pci_dev *pdev;
void __iomem *barmap[PCI_STD_RESOURCE_END + 1];
@@ -110,6 +115,7 @@ struct vfio_pci_device {
bool needs_reset;
bool nointx;
struct pci_saved_state *pci_saved_state;
struct vfio_pci_reflck *reflck;
int refcnt;
int ioeventfds_nr;
struct eventfd_ctx *err_trigger;