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691 lines
21 KiB
C
691 lines
21 KiB
C
#ifndef QEMU_HW_XEN_COMMON_H
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#define QEMU_HW_XEN_COMMON_H
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/*
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* If we have new enough libxenctrl then we do not want/need these compat
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* interfaces, despite what the user supplied cflags might say. They
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* must be undefined before including xenctrl.h
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*/
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#undef XC_WANT_COMPAT_EVTCHN_API
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#undef XC_WANT_COMPAT_GNTTAB_API
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#undef XC_WANT_COMPAT_MAP_FOREIGN_API
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#include <xenctrl.h>
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#include <xenstore.h>
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#include "hw/xen/interface/io/xenbus.h"
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#include "hw/xen/xen.h"
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#include "hw/pci/pci.h"
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#include "hw/xen/trace.h"
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extern xc_interface *xen_xc;
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/*
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* We don't support Xen prior to 4.2.0.
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*/
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/* Xen 4.2 through 4.6 */
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#if CONFIG_XEN_CTRL_INTERFACE_VERSION < 40701
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typedef xc_interface xenforeignmemory_handle;
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typedef xc_evtchn xenevtchn_handle;
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typedef xc_gnttab xengnttab_handle;
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typedef evtchn_port_or_error_t xenevtchn_port_or_error_t;
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#define xenevtchn_open(l, f) xc_evtchn_open(l, f);
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#define xenevtchn_close(h) xc_evtchn_close(h)
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#define xenevtchn_fd(h) xc_evtchn_fd(h)
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#define xenevtchn_pending(h) xc_evtchn_pending(h)
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#define xenevtchn_notify(h, p) xc_evtchn_notify(h, p)
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#define xenevtchn_bind_interdomain(h, d, p) xc_evtchn_bind_interdomain(h, d, p)
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#define xenevtchn_unmask(h, p) xc_evtchn_unmask(h, p)
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#define xenevtchn_unbind(h, p) xc_evtchn_unbind(h, p)
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#define xengnttab_open(l, f) xc_gnttab_open(l, f)
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#define xengnttab_close(h) xc_gnttab_close(h)
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#define xengnttab_set_max_grants(h, n) xc_gnttab_set_max_grants(h, n)
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#define xengnttab_map_grant_ref(h, d, r, p) xc_gnttab_map_grant_ref(h, d, r, p)
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#define xengnttab_unmap(h, a, n) xc_gnttab_munmap(h, a, n)
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#define xengnttab_map_grant_refs(h, c, d, r, p) \
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xc_gnttab_map_grant_refs(h, c, d, r, p)
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#define xengnttab_map_domain_grant_refs(h, c, d, r, p) \
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xc_gnttab_map_domain_grant_refs(h, c, d, r, p)
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#define xenforeignmemory_open(l, f) xen_xc
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#define xenforeignmemory_close(h)
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static inline void *xenforeignmemory_map(xc_interface *h, uint32_t dom,
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int prot, size_t pages,
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const xen_pfn_t arr[/*pages*/],
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int err[/*pages*/])
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{
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if (err)
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return xc_map_foreign_bulk(h, dom, prot, arr, err, pages);
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else
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return xc_map_foreign_pages(h, dom, prot, arr, pages);
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}
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#define xenforeignmemory_unmap(h, p, s) munmap(p, s * XC_PAGE_SIZE)
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#else /* CONFIG_XEN_CTRL_INTERFACE_VERSION >= 40701 */
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#include <xenevtchn.h>
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#include <xengnttab.h>
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#include <xenforeignmemory.h>
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#endif
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extern xenforeignmemory_handle *xen_fmem;
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#if CONFIG_XEN_CTRL_INTERFACE_VERSION < 40900
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typedef xc_interface xendevicemodel_handle;
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#else /* CONFIG_XEN_CTRL_INTERFACE_VERSION >= 40900 */
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#undef XC_WANT_COMPAT_DEVICEMODEL_API
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#include <xendevicemodel.h>
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#endif
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#if CONFIG_XEN_CTRL_INTERFACE_VERSION < 41100
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static inline int xendevicemodel_relocate_memory(
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xendevicemodel_handle *dmod, domid_t domid, uint32_t size, uint64_t src_gfn,
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uint64_t dst_gfn)
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{
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uint32_t i;
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int rc;
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for (i = 0; i < size; i++) {
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unsigned long idx = src_gfn + i;
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xen_pfn_t gpfn = dst_gfn + i;
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rc = xc_domain_add_to_physmap(xen_xc, domid, XENMAPSPACE_gmfn, idx,
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gpfn);
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if (rc) {
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return rc;
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}
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}
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return 0;
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}
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static inline int xendevicemodel_pin_memory_cacheattr(
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xendevicemodel_handle *dmod, domid_t domid, uint64_t start, uint64_t end,
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uint32_t type)
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{
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return xc_domain_pin_memory_cacheattr(xen_xc, domid, start, end, type);
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}
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typedef void xenforeignmemory_resource_handle;
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#define XENMEM_resource_ioreq_server 0
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#define XENMEM_resource_ioreq_server_frame_bufioreq 0
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#define XENMEM_resource_ioreq_server_frame_ioreq(n) (1 + (n))
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static inline xenforeignmemory_resource_handle *xenforeignmemory_map_resource(
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xenforeignmemory_handle *fmem, domid_t domid, unsigned int type,
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unsigned int id, unsigned long frame, unsigned long nr_frames,
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void **paddr, int prot, int flags)
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{
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errno = EOPNOTSUPP;
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return NULL;
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}
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static inline int xenforeignmemory_unmap_resource(
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xenforeignmemory_handle *fmem, xenforeignmemory_resource_handle *fres)
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{
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return 0;
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}
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#endif /* CONFIG_XEN_CTRL_INTERFACE_VERSION < 41100 */
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#if CONFIG_XEN_CTRL_INTERFACE_VERSION < 41000
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#define XEN_COMPAT_PHYSMAP
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static inline void *xenforeignmemory_map2(xenforeignmemory_handle *h,
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uint32_t dom, void *addr,
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int prot, int flags, size_t pages,
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const xen_pfn_t arr[/*pages*/],
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int err[/*pages*/])
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{
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assert(addr == NULL && flags == 0);
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return xenforeignmemory_map(h, dom, prot, pages, arr, err);
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}
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static inline int xentoolcore_restrict_all(domid_t domid)
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{
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errno = ENOTTY;
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return -1;
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}
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static inline int xendevicemodel_shutdown(xendevicemodel_handle *dmod,
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domid_t domid, unsigned int reason)
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{
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errno = ENOTTY;
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return -1;
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}
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#else /* CONFIG_XEN_CTRL_INTERFACE_VERSION >= 41000 */
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#include <xentoolcore.h>
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#endif
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#if CONFIG_XEN_CTRL_INTERFACE_VERSION < 40900
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static inline xendevicemodel_handle *xendevicemodel_open(
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struct xentoollog_logger *logger, unsigned int open_flags)
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{
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return xen_xc;
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}
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#if CONFIG_XEN_CTRL_INTERFACE_VERSION >= 40500
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static inline int xendevicemodel_create_ioreq_server(
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xendevicemodel_handle *dmod, domid_t domid, int handle_bufioreq,
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ioservid_t *id)
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{
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return xc_hvm_create_ioreq_server(dmod, domid, handle_bufioreq,
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id);
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}
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static inline int xendevicemodel_get_ioreq_server_info(
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xendevicemodel_handle *dmod, domid_t domid, ioservid_t id,
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xen_pfn_t *ioreq_pfn, xen_pfn_t *bufioreq_pfn,
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evtchn_port_t *bufioreq_port)
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{
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return xc_hvm_get_ioreq_server_info(dmod, domid, id, ioreq_pfn,
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bufioreq_pfn, bufioreq_port);
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}
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static inline int xendevicemodel_map_io_range_to_ioreq_server(
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xendevicemodel_handle *dmod, domid_t domid, ioservid_t id, int is_mmio,
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uint64_t start, uint64_t end)
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{
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return xc_hvm_map_io_range_to_ioreq_server(dmod, domid, id, is_mmio,
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start, end);
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}
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static inline int xendevicemodel_unmap_io_range_from_ioreq_server(
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xendevicemodel_handle *dmod, domid_t domid, ioservid_t id, int is_mmio,
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uint64_t start, uint64_t end)
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{
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return xc_hvm_unmap_io_range_from_ioreq_server(dmod, domid, id, is_mmio,
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start, end);
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}
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static inline int xendevicemodel_map_pcidev_to_ioreq_server(
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xendevicemodel_handle *dmod, domid_t domid, ioservid_t id,
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uint16_t segment, uint8_t bus, uint8_t device, uint8_t function)
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{
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return xc_hvm_map_pcidev_to_ioreq_server(dmod, domid, id, segment,
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bus, device, function);
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}
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static inline int xendevicemodel_unmap_pcidev_from_ioreq_server(
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xendevicemodel_handle *dmod, domid_t domid, ioservid_t id,
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uint16_t segment, uint8_t bus, uint8_t device, uint8_t function)
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{
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return xc_hvm_unmap_pcidev_from_ioreq_server(dmod, domid, id, segment,
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bus, device, function);
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}
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static inline int xendevicemodel_destroy_ioreq_server(
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xendevicemodel_handle *dmod, domid_t domid, ioservid_t id)
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{
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return xc_hvm_destroy_ioreq_server(dmod, domid, id);
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}
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static inline int xendevicemodel_set_ioreq_server_state(
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xendevicemodel_handle *dmod, domid_t domid, ioservid_t id, int enabled)
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{
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return xc_hvm_set_ioreq_server_state(dmod, domid, id, enabled);
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}
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#endif /* CONFIG_XEN_CTRL_INTERFACE_VERSION >= 40500 */
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static inline int xendevicemodel_set_pci_intx_level(
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xendevicemodel_handle *dmod, domid_t domid, uint16_t segment,
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uint8_t bus, uint8_t device, uint8_t intx, unsigned int level)
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{
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return xc_hvm_set_pci_intx_level(dmod, domid, segment, bus, device,
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intx, level);
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}
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static inline int xendevicemodel_set_isa_irq_level(
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xendevicemodel_handle *dmod, domid_t domid, uint8_t irq,
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unsigned int level)
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{
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return xc_hvm_set_isa_irq_level(dmod, domid, irq, level);
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}
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static inline int xendevicemodel_set_pci_link_route(
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xendevicemodel_handle *dmod, domid_t domid, uint8_t link, uint8_t irq)
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{
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return xc_hvm_set_pci_link_route(dmod, domid, link, irq);
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}
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static inline int xendevicemodel_inject_msi(
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xendevicemodel_handle *dmod, domid_t domid, uint64_t msi_addr,
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uint32_t msi_data)
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{
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return xc_hvm_inject_msi(dmod, domid, msi_addr, msi_data);
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}
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static inline int xendevicemodel_track_dirty_vram(
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xendevicemodel_handle *dmod, domid_t domid, uint64_t first_pfn,
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uint32_t nr, unsigned long *dirty_bitmap)
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{
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return xc_hvm_track_dirty_vram(dmod, domid, first_pfn, nr,
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dirty_bitmap);
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}
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static inline int xendevicemodel_modified_memory(
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xendevicemodel_handle *dmod, domid_t domid, uint64_t first_pfn,
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uint32_t nr)
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{
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return xc_hvm_modified_memory(dmod, domid, first_pfn, nr);
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}
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static inline int xendevicemodel_set_mem_type(
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xendevicemodel_handle *dmod, domid_t domid, hvmmem_type_t mem_type,
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uint64_t first_pfn, uint32_t nr)
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{
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return xc_hvm_set_mem_type(dmod, domid, mem_type, first_pfn, nr);
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}
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#endif
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extern xendevicemodel_handle *xen_dmod;
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static inline int xen_set_mem_type(domid_t domid, hvmmem_type_t type,
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uint64_t first_pfn, uint32_t nr)
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{
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return xendevicemodel_set_mem_type(xen_dmod, domid, type, first_pfn,
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nr);
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}
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static inline int xen_set_pci_intx_level(domid_t domid, uint16_t segment,
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uint8_t bus, uint8_t device,
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uint8_t intx, unsigned int level)
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{
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return xendevicemodel_set_pci_intx_level(xen_dmod, domid, segment, bus,
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device, intx, level);
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}
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static inline int xen_inject_msi(domid_t domid, uint64_t msi_addr,
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uint32_t msi_data)
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{
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return xendevicemodel_inject_msi(xen_dmod, domid, msi_addr, msi_data);
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}
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static inline int xen_set_isa_irq_level(domid_t domid, uint8_t irq,
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unsigned int level)
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{
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return xendevicemodel_set_isa_irq_level(xen_dmod, domid, irq, level);
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}
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static inline int xen_track_dirty_vram(domid_t domid, uint64_t first_pfn,
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uint32_t nr, unsigned long *bitmap)
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{
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return xendevicemodel_track_dirty_vram(xen_dmod, domid, first_pfn, nr,
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bitmap);
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}
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static inline int xen_modified_memory(domid_t domid, uint64_t first_pfn,
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uint32_t nr)
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{
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return xendevicemodel_modified_memory(xen_dmod, domid, first_pfn, nr);
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}
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static inline int xen_restrict(domid_t domid)
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{
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int rc;
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rc = xentoolcore_restrict_all(domid);
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trace_xen_domid_restrict(rc ? errno : 0);
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return rc;
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}
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void destroy_hvm_domain(bool reboot);
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/* shutdown/destroy current domain because of an error */
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void xen_shutdown_fatal_error(const char *fmt, ...) G_GNUC_PRINTF(1, 2);
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#ifdef HVM_PARAM_VMPORT_REGS_PFN
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static inline int xen_get_vmport_regs_pfn(xc_interface *xc, domid_t dom,
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xen_pfn_t *vmport_regs_pfn)
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{
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int rc;
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uint64_t value;
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rc = xc_hvm_param_get(xc, dom, HVM_PARAM_VMPORT_REGS_PFN, &value);
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if (rc >= 0) {
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*vmport_regs_pfn = (xen_pfn_t) value;
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}
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return rc;
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}
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#else
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static inline int xen_get_vmport_regs_pfn(xc_interface *xc, domid_t dom,
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xen_pfn_t *vmport_regs_pfn)
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{
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return -ENOSYS;
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}
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#endif
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/* Xen before 4.6 */
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#if CONFIG_XEN_CTRL_INTERFACE_VERSION < 40600
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#ifndef HVM_IOREQSRV_BUFIOREQ_ATOMIC
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#define HVM_IOREQSRV_BUFIOREQ_ATOMIC 2
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#endif
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#endif
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static inline int xen_get_default_ioreq_server_info(domid_t dom,
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xen_pfn_t *ioreq_pfn,
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xen_pfn_t *bufioreq_pfn,
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evtchn_port_t
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*bufioreq_evtchn)
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{
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unsigned long param;
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int rc;
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rc = xc_get_hvm_param(xen_xc, dom, HVM_PARAM_IOREQ_PFN, ¶m);
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if (rc < 0) {
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fprintf(stderr, "failed to get HVM_PARAM_IOREQ_PFN\n");
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return -1;
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}
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*ioreq_pfn = param;
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rc = xc_get_hvm_param(xen_xc, dom, HVM_PARAM_BUFIOREQ_PFN, ¶m);
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if (rc < 0) {
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fprintf(stderr, "failed to get HVM_PARAM_BUFIOREQ_PFN\n");
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return -1;
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}
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*bufioreq_pfn = param;
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rc = xc_get_hvm_param(xen_xc, dom, HVM_PARAM_BUFIOREQ_EVTCHN,
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¶m);
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if (rc < 0) {
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fprintf(stderr, "failed to get HVM_PARAM_BUFIOREQ_EVTCHN\n");
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return -1;
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}
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*bufioreq_evtchn = param;
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return 0;
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}
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/* Xen before 4.5 */
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#if CONFIG_XEN_CTRL_INTERFACE_VERSION < 40500
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#ifndef HVM_PARAM_BUFIOREQ_EVTCHN
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#define HVM_PARAM_BUFIOREQ_EVTCHN 26
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#endif
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#define IOREQ_TYPE_PCI_CONFIG 2
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typedef uint16_t ioservid_t;
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static inline void xen_map_memory_section(domid_t dom,
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ioservid_t ioservid,
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MemoryRegionSection *section)
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{
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}
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static inline void xen_unmap_memory_section(domid_t dom,
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ioservid_t ioservid,
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MemoryRegionSection *section)
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{
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}
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static inline void xen_map_io_section(domid_t dom,
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ioservid_t ioservid,
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MemoryRegionSection *section)
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{
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}
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static inline void xen_unmap_io_section(domid_t dom,
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ioservid_t ioservid,
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MemoryRegionSection *section)
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{
|
|
}
|
|
|
|
static inline void xen_map_pcidev(domid_t dom,
|
|
ioservid_t ioservid,
|
|
PCIDevice *pci_dev)
|
|
{
|
|
}
|
|
|
|
static inline void xen_unmap_pcidev(domid_t dom,
|
|
ioservid_t ioservid,
|
|
PCIDevice *pci_dev)
|
|
{
|
|
}
|
|
|
|
static inline void xen_create_ioreq_server(domid_t dom,
|
|
ioservid_t *ioservid)
|
|
{
|
|
}
|
|
|
|
static inline void xen_destroy_ioreq_server(domid_t dom,
|
|
ioservid_t ioservid)
|
|
{
|
|
}
|
|
|
|
static inline int xen_get_ioreq_server_info(domid_t dom,
|
|
ioservid_t ioservid,
|
|
xen_pfn_t *ioreq_pfn,
|
|
xen_pfn_t *bufioreq_pfn,
|
|
evtchn_port_t *bufioreq_evtchn)
|
|
{
|
|
return xen_get_default_ioreq_server_info(dom, ioreq_pfn,
|
|
bufioreq_pfn,
|
|
bufioreq_evtchn);
|
|
}
|
|
|
|
static inline int xen_set_ioreq_server_state(domid_t dom,
|
|
ioservid_t ioservid,
|
|
bool enable)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
/* Xen 4.5 */
|
|
#else
|
|
|
|
static bool use_default_ioreq_server;
|
|
|
|
static inline void xen_map_memory_section(domid_t dom,
|
|
ioservid_t ioservid,
|
|
MemoryRegionSection *section)
|
|
{
|
|
hwaddr start_addr = section->offset_within_address_space;
|
|
ram_addr_t size = int128_get64(section->size);
|
|
hwaddr end_addr = start_addr + size - 1;
|
|
|
|
if (use_default_ioreq_server) {
|
|
return;
|
|
}
|
|
|
|
trace_xen_map_mmio_range(ioservid, start_addr, end_addr);
|
|
xendevicemodel_map_io_range_to_ioreq_server(xen_dmod, dom, ioservid, 1,
|
|
start_addr, end_addr);
|
|
}
|
|
|
|
static inline void xen_unmap_memory_section(domid_t dom,
|
|
ioservid_t ioservid,
|
|
MemoryRegionSection *section)
|
|
{
|
|
hwaddr start_addr = section->offset_within_address_space;
|
|
ram_addr_t size = int128_get64(section->size);
|
|
hwaddr end_addr = start_addr + size - 1;
|
|
|
|
if (use_default_ioreq_server) {
|
|
return;
|
|
}
|
|
|
|
trace_xen_unmap_mmio_range(ioservid, start_addr, end_addr);
|
|
xendevicemodel_unmap_io_range_from_ioreq_server(xen_dmod, dom, ioservid,
|
|
1, start_addr, end_addr);
|
|
}
|
|
|
|
static inline void xen_map_io_section(domid_t dom,
|
|
ioservid_t ioservid,
|
|
MemoryRegionSection *section)
|
|
{
|
|
hwaddr start_addr = section->offset_within_address_space;
|
|
ram_addr_t size = int128_get64(section->size);
|
|
hwaddr end_addr = start_addr + size - 1;
|
|
|
|
if (use_default_ioreq_server) {
|
|
return;
|
|
}
|
|
|
|
trace_xen_map_portio_range(ioservid, start_addr, end_addr);
|
|
xendevicemodel_map_io_range_to_ioreq_server(xen_dmod, dom, ioservid, 0,
|
|
start_addr, end_addr);
|
|
}
|
|
|
|
static inline void xen_unmap_io_section(domid_t dom,
|
|
ioservid_t ioservid,
|
|
MemoryRegionSection *section)
|
|
{
|
|
hwaddr start_addr = section->offset_within_address_space;
|
|
ram_addr_t size = int128_get64(section->size);
|
|
hwaddr end_addr = start_addr + size - 1;
|
|
|
|
if (use_default_ioreq_server) {
|
|
return;
|
|
}
|
|
|
|
trace_xen_unmap_portio_range(ioservid, start_addr, end_addr);
|
|
xendevicemodel_unmap_io_range_from_ioreq_server(xen_dmod, dom, ioservid,
|
|
0, start_addr, end_addr);
|
|
}
|
|
|
|
static inline void xen_map_pcidev(domid_t dom,
|
|
ioservid_t ioservid,
|
|
PCIDevice *pci_dev)
|
|
{
|
|
if (use_default_ioreq_server) {
|
|
return;
|
|
}
|
|
|
|
trace_xen_map_pcidev(ioservid, pci_dev_bus_num(pci_dev),
|
|
PCI_SLOT(pci_dev->devfn), PCI_FUNC(pci_dev->devfn));
|
|
xendevicemodel_map_pcidev_to_ioreq_server(xen_dmod, dom, ioservid, 0,
|
|
pci_dev_bus_num(pci_dev),
|
|
PCI_SLOT(pci_dev->devfn),
|
|
PCI_FUNC(pci_dev->devfn));
|
|
}
|
|
|
|
static inline void xen_unmap_pcidev(domid_t dom,
|
|
ioservid_t ioservid,
|
|
PCIDevice *pci_dev)
|
|
{
|
|
if (use_default_ioreq_server) {
|
|
return;
|
|
}
|
|
|
|
trace_xen_unmap_pcidev(ioservid, pci_dev_bus_num(pci_dev),
|
|
PCI_SLOT(pci_dev->devfn), PCI_FUNC(pci_dev->devfn));
|
|
xendevicemodel_unmap_pcidev_from_ioreq_server(xen_dmod, dom, ioservid, 0,
|
|
pci_dev_bus_num(pci_dev),
|
|
PCI_SLOT(pci_dev->devfn),
|
|
PCI_FUNC(pci_dev->devfn));
|
|
}
|
|
|
|
static inline void xen_create_ioreq_server(domid_t dom,
|
|
ioservid_t *ioservid)
|
|
{
|
|
int rc = xendevicemodel_create_ioreq_server(xen_dmod, dom,
|
|
HVM_IOREQSRV_BUFIOREQ_ATOMIC,
|
|
ioservid);
|
|
|
|
if (rc == 0) {
|
|
trace_xen_ioreq_server_create(*ioservid);
|
|
return;
|
|
}
|
|
|
|
*ioservid = 0;
|
|
use_default_ioreq_server = true;
|
|
trace_xen_default_ioreq_server();
|
|
}
|
|
|
|
static inline void xen_destroy_ioreq_server(domid_t dom,
|
|
ioservid_t ioservid)
|
|
{
|
|
if (use_default_ioreq_server) {
|
|
return;
|
|
}
|
|
|
|
trace_xen_ioreq_server_destroy(ioservid);
|
|
xendevicemodel_destroy_ioreq_server(xen_dmod, dom, ioservid);
|
|
}
|
|
|
|
static inline int xen_get_ioreq_server_info(domid_t dom,
|
|
ioservid_t ioservid,
|
|
xen_pfn_t *ioreq_pfn,
|
|
xen_pfn_t *bufioreq_pfn,
|
|
evtchn_port_t *bufioreq_evtchn)
|
|
{
|
|
if (use_default_ioreq_server) {
|
|
return xen_get_default_ioreq_server_info(dom, ioreq_pfn,
|
|
bufioreq_pfn,
|
|
bufioreq_evtchn);
|
|
}
|
|
|
|
return xendevicemodel_get_ioreq_server_info(xen_dmod, dom, ioservid,
|
|
ioreq_pfn, bufioreq_pfn,
|
|
bufioreq_evtchn);
|
|
}
|
|
|
|
static inline int xen_set_ioreq_server_state(domid_t dom,
|
|
ioservid_t ioservid,
|
|
bool enable)
|
|
{
|
|
if (use_default_ioreq_server) {
|
|
return 0;
|
|
}
|
|
|
|
trace_xen_ioreq_server_state(ioservid, enable);
|
|
return xendevicemodel_set_ioreq_server_state(xen_dmod, dom, ioservid,
|
|
enable);
|
|
}
|
|
|
|
#endif
|
|
|
|
/* Xen before 4.8 */
|
|
|
|
#if CONFIG_XEN_CTRL_INTERFACE_VERSION < 40800
|
|
|
|
struct xengnttab_grant_copy_segment {
|
|
union xengnttab_copy_ptr {
|
|
void *virt;
|
|
struct {
|
|
uint32_t ref;
|
|
uint16_t offset;
|
|
uint16_t domid;
|
|
} foreign;
|
|
} source, dest;
|
|
uint16_t len;
|
|
uint16_t flags;
|
|
int16_t status;
|
|
};
|
|
|
|
typedef struct xengnttab_grant_copy_segment xengnttab_grant_copy_segment_t;
|
|
|
|
static inline int xengnttab_grant_copy(xengnttab_handle *xgt, uint32_t count,
|
|
xengnttab_grant_copy_segment_t *segs)
|
|
{
|
|
return -ENOSYS;
|
|
}
|
|
#endif
|
|
|
|
#endif /* QEMU_HW_XEN_COMMON_H */
|