linux/arch/x86/include/asm/iommu.h
Alex Williamson bcb71abe7d iommu: Add option to group multi-function devices
The option iommu=group_mf indicates the that the iommu driver should
expose all functions of a multi-function PCI device as the same
iommu_device_group.  This is useful for disallowing individual functions
being exposed as independent devices to userspace as there are often
hidden dependencies.  Virtual functions are not affected by this option.

Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2011-11-15 12:22:31 +01:00

14 lines
320 B
C

#ifndef _ASM_X86_IOMMU_H
#define _ASM_X86_IOMMU_H
extern struct dma_map_ops nommu_dma_ops;
extern int force_iommu, no_iommu;
extern int iommu_detected;
extern int iommu_pass_through;
extern int iommu_group_mf;
/* 10 seconds */
#define DMAR_OPERATION_TIMEOUT ((cycles_t) tsc_khz*10*1000)
#endif /* _ASM_X86_IOMMU_H */