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Roger Pau Monné
734ddde896
Otherwise it's not possible for device models to map IRQs of devices on segments different than 0. Keep the same function prototype and pass the segment in the high 16bits of the bus parameter, like it's done for the hypercall itself. Amends:7620c0cf9a("PCI multi-seg: add new physdevop-s") Signed-off-by: Roger Pau Monné <roger.pau@citrix.com> Reviewed-by: Anthony PERARD <anthony.perard@vates.tech> master commit:b7838d12bdmaster date: 2025-10-21 16:56:19 +0100
114 lines
3.0 KiB
C
114 lines
3.0 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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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation;
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* version 2.1 of the License.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "xc_private.h"
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int xc_physdev_pci_access_modify(xc_interface *xch,
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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(xc_interface *xch,
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uint32_t domid,
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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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{
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errno = EINVAL;
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return -1;
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}
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memset(&map, 0, sizeof(struct physdev_map_pirq));
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map.domid = domid;
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map.type = MAP_PIRQ_TYPE_GSI;
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map.index = index;
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map.pirq = *pirq < 0 ? index : *pirq;
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rc = do_physdev_op(xch, PHYSDEVOP_map_pirq, &map, sizeof(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(xc_interface *xch,
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uint32_t domid,
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int index,
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int *pirq,
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int devfn,
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int segbus,
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int entry_nr,
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uint64_t table_base)
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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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{
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errno = EINVAL;
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return -1;
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}
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memset(&map, 0, sizeof(struct physdev_map_pirq));
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map.domid = domid;
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map.type = MAP_PIRQ_TYPE_MSI_SEG;
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map.index = index;
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map.pirq = *pirq;
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map.bus = segbus;
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map.devfn = devfn;
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map.entry_nr = entry_nr;
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map.table_base = table_base;
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rc = do_physdev_op(xch, PHYSDEVOP_map_pirq, &map, sizeof(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(xc_interface *xch,
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uint32_t 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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memset(&unmap, 0, sizeof(struct physdev_unmap_pirq));
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unmap.domid = domid;
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unmap.pirq = pirq;
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rc = do_physdev_op(xch, PHYSDEVOP_unmap_pirq, &unmap, sizeof(unmap));
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return rc;
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}
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