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https://github.com/xen-project/xen.git
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Keir Fraser
85715f4bc7
Currently it only inercept access to MSI config space, no MSI-x support. Signed-off-by: Jiang Yunhong <yunhong.jiang@intel.com> Signed-off-by: Shan Haitao <haitao.shan@intel.com>
94 lines
2.1 KiB
C
94 lines
2.1 KiB
C
/******************************************************************************
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* xc_physdev.c
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*
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* API for manipulating physical-device access permissions.
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*
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* Copyright (c) 2004, Rolf Neugebauer (Intel Research Cambridge)
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* Copyright (c) 2004, K A Fraser (University of Cambridge)
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*/
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#include "xc_private.h"
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int xc_physdev_pci_access_modify(int xc_handle,
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uint32_t domid,
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int bus,
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int dev,
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int func,
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int enable)
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{
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errno = ENOSYS;
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return -1;
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}
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int xc_physdev_map_pirq(int xc_handle,
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int domid,
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int type,
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int index,
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int *pirq)
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{
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int rc;
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struct physdev_map_pirq map;
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if ( !pirq )
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return -EINVAL;
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map.domid = domid;
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map.type = type;
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map.index = index;
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map.pirq = *pirq;
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rc = do_physdev_op(xc_handle, PHYSDEVOP_map_pirq, &map);
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if ( !rc )
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*pirq = map.pirq;
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return rc;
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}
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int xc_physdev_map_pirq_msi(int xc_handle,
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int domid,
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int type,
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int index,
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int *pirq,
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int devfn,
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int bus,
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int msi_type)
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{
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int rc;
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struct physdev_map_pirq map;
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if ( !pirq )
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return -EINVAL;
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map.domid = domid;
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map.type = type;
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map.index = index;
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map.pirq = *pirq;
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map.msi_info.devfn = devfn;
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map.msi_info.bus = bus;
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map.msi_info.msi = msi_type;
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rc = do_physdev_op(xc_handle, PHYSDEVOP_map_pirq, &map);
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if ( !rc )
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*pirq = map.pirq;
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return rc;
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}
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int xc_physdev_unmap_pirq(int xc_handle,
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int domid,
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int pirq)
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{
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int rc;
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struct physdev_unmap_pirq unmap;
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unmap.domid = domid;
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unmap.pirq = pirq;
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rc = do_physdev_op(xc_handle, PHYSDEVOP_unmap_pirq, &unmap);
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return rc;
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}
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