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VFIO updates for v4.11

Browse Source 
- Kconfig fixes for SPAPR_TCE_IOMMU=n (Michael Ellerman)
  - Module softdep rather than request_module to simplify usage from
    initrd (Alex Williamson)
  - Comment typo fix (Changbin Du)
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Merge tag 'vfio-v4.11-rc1' of git://github.com/awilliam/linux-vfio

Pull VFIO updates from Alex Williamson:

 - Kconfig fixes for SPAPR_TCE_IOMMU=n (Michael Ellerman)

 - Module softdep rather than request_module to simplify usage from
   initrd (Alex Williamson)

 - Comment typo fix (Changbin Du)

* tag 'vfio-v4.11-rc1' of git://github.com/awilliam/linux-vfio:
  vfio: fix a typo in comment of function vfio_pin_pages
  vfio: Replace module request with softdep
  vfio/mdev: Use a module softdep for vfio_mdev
  vfio: Fix build break when SPAPR_TCE_IOMMU=n
This commit is contained in:
Linus Torvalds 2017-02-23 11:26:09 -08:00
commit f14cc3b13d
3 changed files with 6 additions and 25 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/vfio/Kconfig
View File

@ -6,12 +6,12 @@ config VFIO_IOMMU_TYPE1
config VFIO_IOMMU_SPAPR_TCE
tristate
depends on VFIO && SPAPR_TCE_IOMMU
default n
default VFIO
config VFIO_SPAPR_EEH
tristate
depends on EEH && VFIO_IOMMU_SPAPR_TCE
default n
default VFIO
config VFIO_VIRQFD
tristate
@ -22,8 +22,6 @@ menuconfig VFIO
tristate "VFIO Non-Privileged userspace driver framework"
depends on IOMMU_API
select VFIO_IOMMU_TYPE1 if (X86 || S390 || ARM_SMMU || ARM_SMMU_V3)
select VFIO_IOMMU_SPAPR_TCE if (PPC_POWERNV || PPC_PSERIES)
select VFIO_SPAPR_EEH if (PPC_POWERNV || PPC_PSERIES)
select ANON_INODES
help
VFIO provides a framework for secure userspace device drivers.

14
drivers/vfio/mdev/mdev_core.c
View File

@ -422,18 +422,7 @@ int mdev_device_remove(struct device *dev, bool force_remove)
static int __init mdev_init(void)
{
int ret;
ret = mdev_bus_register();
/*
* Attempt to load known vfio_mdev. This gives us a working environment
* without the user needing to explicitly load vfio_mdev driver.
*/
if (!ret)
request_module_nowait("vfio_mdev");
return ret;
return mdev_bus_register();
}
static void __exit mdev_exit(void)
@ -451,3 +440,4 @@ MODULE_VERSION(DRIVER_VERSION);
MODULE_LICENSE("GPL v2");
MODULE_AUTHOR(DRIVER_AUTHOR);
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_SOFTDEP("post: vfio_mdev");

11
drivers/vfio/vfio.c
View File

@ -1917,7 +1917,7 @@ EXPORT_SYMBOL(vfio_set_irqs_validate_and_prepare);
* Pin a set of guest PFNs and return their associated host PFNs for local
* domain only.
* @dev [in] : device
* @user_pfn [in]: array of user/guest PFNs to be unpinned.
* @user_pfn [in]: array of user/guest PFNs to be pinned.
* @npage [in] : count of elements in user_pfn array. This count should not
* be greater VFIO_PIN_PAGES_MAX_ENTRIES.
* @prot [in] : protection flags
@ -2250,14 +2250,6 @@ static int __init vfio_init(void)
pr_info(DRIVER_DESC " version: " DRIVER_VERSION "\n");
/*
* Attempt to load known iommu-drivers. This gives us a working
* environment without the user needing to explicitly load iommu
* drivers.
*/
request_module_nowait("vfio_iommu_type1");
request_module_nowait("vfio_iommu_spapr_tce");
#ifdef CONFIG_VFIO_NOIOMMU
vfio_register_iommu_driver(&vfio_noiommu_ops);
#endif
@ -2297,3 +2289,4 @@ MODULE_AUTHOR(DRIVER_AUTHOR);
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_ALIAS_MISCDEV(VFIO_MINOR);
MODULE_ALIAS("devname:vfio/vfio");
MODULE_SOFTDEP("post: vfio_iommu_type1 vfio_iommu_spapr_tce");