On 04/04/2013 05:10:27 PM, Yoder Stuart-B08248 wrote:
/*
* VFIO_IOMMU_PAMU_UNMAP_MSI_BANK
*
* Unmaps the MSI bank at the specified iova.
* Caller provides struct vfio_pamu_msi_bank_unmap with all fields
set.
* Operates on VFIO file descriptor (/dev/vfio/vfio).
* Return: 0 on success, -errno on failure
*/
struct vfio_pamu_msi_bank_unmap {
__u32 argsz;
__u32 flags; /* no flags currently */
__u64 iova; /* the iova to be unmapped to */
};
#define VFIO_IOMMU_PAMU_UNMAP_MSI_BANK _IO(VFIO_TYPE, VFIO_BASE + x,
struct vfio_pamu_msi_bank_unmap )
What happens if a normal unmap call is done on the MSI iova? Do we
need a separate unmap?
-Scott
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