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349b53dd4e695e3d833b5380540385145b2d3ae8Stuart Maybee * Copyright 2009 Sun Microsystems, Inc. All rights reserved.
843e19887f64dde75055cf8842fc4db2171eff45johnlev * Use is subject to license terms.
843e19887f64dde75055cf8842fc4db2171eff45johnlevextern "C" {
843e19887f64dde75055cf8842fc4db2171eff45johnlev * Platform-dependent MMU routines and types for the hypervisor.
843e19887f64dde75055cf8842fc4db2171eff45johnlev * WARNING: this header file is used by both dboot and i86pc, so don't go using
843e19887f64dde75055cf8842fc4db2171eff45johnlev * normal kernel headers.
843e19887f64dde75055cf8842fc4db2171eff45johnlev#if (defined(_BOOT) && defined(_BOOT_TARGET_amd64)) || \
349b53dd4e695e3d833b5380540385145b2d3ae8Stuart Maybee#define mfn_to_ma(mfn) ((maddr_t)(mfn) << MMU_PAGESHIFT)
843e19887f64dde75055cf8842fc4db2171eff45johnlev ((va) >= HYPERVISOR_VIRT_START && (va) < HYPERVISOR_VIRT_END)
349b53dd4e695e3d833b5380540385145b2d3ae8Stuart Maybee#else /* __target_amd64 */
843e19887f64dde75055cf8842fc4db2171eff45johnlev#define IN_HYPERVISOR_VA(va) ((va) >= xen_virt_start)
843e19887f64dde75055cf8842fc4db2171eff45johnlev * Do this to help catch any uses.
349b53dd4e695e3d833b5380540385145b2d3ae8Stuart Maybee#endif /* __target_amd64 */
349b53dd4e695e3d833b5380540385145b2d3ae8Stuart Maybee#endif /* __xpv */
843e19887f64dde75055cf8842fc4db2171eff45johnlev * On the hypervisor we need:
843e19887f64dde75055cf8842fc4db2171eff45johnlev * - a way to map a machine address (ie, not pseudo-physical).
843e19887f64dde75055cf8842fc4db2171eff45johnlev * - to relocate initial hypervisor data structures into kernel VA range.
843e19887f64dde75055cf8842fc4db2171eff45johnlev * - a way to translate between physical addresses and machine addresses.
843e19887f64dde75055cf8842fc4db2171eff45johnlev * - a way to change the machine address behind a physical address.
843e19887f64dde75055cf8842fc4db2171eff45johnlev * locks for mfn_list[] and machine_to_phys_mapping[] when migration / suspend
843e19887f64dde75055cf8842fc4db2171eff45johnlev * events happen
843e19887f64dde75055cf8842fc4db2171eff45johnlevextern void xen_block_migrate(void);
843e19887f64dde75055cf8842fc4db2171eff45johnlevextern void xen_allow_migrate(void);
843e19887f64dde75055cf8842fc4db2171eff45johnlevextern void xen_start_migrate(void);
843e19887f64dde75055cf8842fc4db2171eff45johnlevextern void xen_end_migrate(void);
843e19887f64dde75055cf8842fc4db2171eff45johnlev * Conversion between machine (hardware) addresses and pseudo-physical
843e19887f64dde75055cf8842fc4db2171eff45johnlev * addresses.
843e19887f64dde75055cf8842fc4db2171eff45johnlev * interfaces to create/destroy pfn_t values for devices or foreign memory
843e19887f64dde75055cf8842fc4db2171eff45johnlev * xen_assign_pfn() creates (or looks up) a local pfn value to use for things
843e19887f64dde75055cf8842fc4db2171eff45johnlev * like a foreign domain memory mfn or a device mfn.
843e19887f64dde75055cf8842fc4db2171eff45johnlev * xen_release_pfn() destroys the association between a pfn and foreign mfn.
843e19887f64dde75055cf8842fc4db2171eff45johnlev#endif /* !_BOOT */
843e19887f64dde75055cf8842fc4db2171eff45johnlev#endif /* _SYS_XEN_MMU_H */