f720882cf0
by 0x100000 (above the I/O Memory "hole") leaving all physical addresses below unused, don't perform phys<->mach mapping for addresses below 0x100000 or beyond the real hardware's physical memory. -> /dev/mem works now as expected and X works in domain0.
191 lines
6.6 KiB
C
191 lines
6.6 KiB
C
/* $NetBSD: xenpmap.h,v 1.3 2004/04/26 22:05:05 cl Exp $ */
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/*
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*
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* Copyright (c) 2004 Christian Limpach.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Christian Limpach.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _XEN_XENPMAP_H_
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#define _XEN_XENPMAP_H_
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void xpq_queue_invlpg(vaddr_t);
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void xpq_queue_pde_update(pd_entry_t *, pd_entry_t);
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void xpq_queue_pte_update(pt_entry_t *, pt_entry_t);
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void xpq_queue_unchecked_pte_update(pt_entry_t *, pt_entry_t);
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void xpq_queue_pt_switch(paddr_t);
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void xpq_flush_queue(void);
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void xpq_queue_set_ldt(vaddr_t, uint32_t);
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void xpq_queue_tlb_flush(void);
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void xpq_queue_pin_table(paddr_t, int);
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void xpq_queue_unpin_table(paddr_t);
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extern paddr_t *xpmap_phys_to_machine_mapping;
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#define XPQ_PIN_L1_TABLE 1
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#define XPQ_PIN_L2_TABLE 2
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#ifndef XEN
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#define PDE_GET(_pdp) \
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*(_pdp)
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#define PDE_SET(_pdp,_npde) \
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*(_pdp) = (_npde)
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#define PDE_CLEAR(_pdp) \
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*(_pdp) = 0
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#define PTE_SET(_ptp,_npte) \
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*(_ptp) = (_npte)
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#define PTE_CLEAR(_ptp) \
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*(_ptp) = 0
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#define PTE_ATOMIC_SET(_ptp,_npte,_opte) \
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(_opte) = x86_atomic_testset_ul((_ptp), (_npte))
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#define PTE_ATOMIC_CLEAR(_ptp,_opte) \
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(_opte) = x86_atomic_testset_ul((_ptp), 0)
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#define PDE_CLEARBITS(_pdp,_bits) \
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*(_pdp) &= ~(_bits)
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#define PTE_ATOMIC_CLEARBITS(_ptp,_bits) \
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x86_atomic_clearbits_l((_ptp), (_bits))
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#define PTE_SETBITS(_ptp,_bits) \
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*(_ptp) |= (_bits)
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#define PTE_ATOMIC_SETBITS(_ptp,_bits) \
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x86_atomic_setbits_l((_ptp), (_bits))
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#else
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paddr_t *xpmap_phys_to_machine_mapping;
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#define PDE_GET(_pdp) \
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(pmap_valid_entry(*(_pdp)) ? xpmap_mtop(*(_pdp)) : *(_pdp))
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#define PDE_SET(_pdp,_npde) do { \
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xpq_queue_pde_update((_pdp), xpmap_ptom((_npde))); \
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xpq_flush_queue(); \
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} while (/*CONSTCOND*/0)
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#define PDE_CLEAR(_pdp) do { \
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xpq_queue_pde_update((_pdp), 0); \
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xpq_flush_queue(); \
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} while (/*CONSTCOND*/0)
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#define PTE_GET(_ptp) \
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(pmap_valid_entry(*(_ptp)) ? xpmap_mtop(*(_ptp)) : *(_ptp))
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#define PTE_GET_MA(_ptp) \
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*(_ptp)
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#define PTE_SET(_ptp,_npte) do { \
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xpq_queue_pte_update((_ptp), xpmap_ptom((_npte))); \
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xpq_flush_queue(); \
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} while (/*CONSTCOND*/0)
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#define PTE_SET_MA(_ptp,_npte) do { \
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xpq_queue_pte_update((_ptp), (_npte)); \
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xpq_flush_queue(); \
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} while (/*CONSTCOND*/0)
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#define PTE_SET_MA_UNCHECKED(_ptp,_npte) do { \
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xpq_queue_unchecked_pte_update((_ptp), (_npte)); \
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xpq_flush_queue(); \
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} while (/*CONSTCOND*/0)
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#define PTE_CLEAR(_ptp) do { \
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xpq_queue_pte_update((_ptp), 0); \
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xpq_flush_queue(); \
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} while (/*CONSTCOND*/0)
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#define PTE_ATOMIC_SET(_ptp,_npte,_opte) do { \
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(_opte) = PTE_GET(_ptp); \
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xpq_queue_pte_update((_ptp), xpmap_ptom((_npte))); \
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xpq_flush_queue(); \
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} while (/*CONSTCOND*/0)
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#define PTE_ATOMIC_SET_MA(_ptp,_npte,_opte) do { \
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(_opte) = *(_ptp); \
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xpq_queue_pte_update((_ptp), (_npte)); \
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xpq_flush_queue(); \
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} while (/*CONSTCOND*/0)
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#define PTE_ATOMIC_CLEAR(_ptp,_opte) do { \
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(_opte) = PTE_GET(_ptp); \
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xpq_queue_pte_update((_ptp), 0); \
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xpq_flush_queue(); \
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} while (/*CONSTCOND*/0)
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#define PTE_ATOMIC_CLEAR_MA(_ptp,_opte) do { \
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(_opte) = *(_ptp); \
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xpq_queue_pte_update((_ptp), 0); \
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xpq_flush_queue(); \
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} while (/*CONSTCOND*/0)
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#define PDE_CLEARBITS(_pdp,_bits) do { \
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xpq_queue_pte_update((_pdp), *(_pdp) & ~((_bits) & ~PG_FRAME)); \
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xpq_flush_queue(); \
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} while (/*CONSTCOND*/0)
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#define PTE_CLEARBITS(_ptp,_bits) do { \
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xpq_queue_pte_update((_ptp), *(_ptp) & ~((_bits) & ~PG_FRAME)); \
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xpq_flush_queue(); \
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} while (/*CONSTCOND*/0)
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#define PDE_ATOMIC_CLEARBITS(_pdp,_bits) do { \
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xpq_queue_pde_update((_pdp), *(_pdp) & ~((_bits) & ~PG_FRAME)); \
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xpq_flush_queue(); \
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} while (/*CONSTCOND*/0)
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#define PTE_ATOMIC_CLEARBITS(_ptp,_bits) do { \
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xpq_queue_pte_update((_ptp), *(_ptp) & ~((_bits) & ~PG_FRAME)); \
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xpq_flush_queue(); \
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} while (/*CONSTCOND*/0)
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#define PTE_SETBITS(_ptp,_bits) do { \
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xpq_queue_pte_update((_ptp), *(_ptp) | ((_bits) & ~PG_FRAME)); \
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xpq_flush_queue(); \
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} while (/*CONSTCOND*/0)
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#define PDE_ATOMIC_SETBITS(_pdp,_bits) do { \
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xpq_queue_pde_update((_pdp), *(_pdp) | ((_bits) & ~PG_FRAME)); \
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xpq_flush_queue(); \
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} while (/*CONSTCOND*/0)
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#define PTE_ATOMIC_SETBITS(_ptp,_bits) do { \
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xpq_queue_pde_update((_ptp), *(_ptp) | ((_bits) & ~PG_FRAME)); \
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xpq_flush_queue(); \
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} while (/*CONSTCOND*/0)
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#define PDE_COPY(_dpdp,_spdp) do { \
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xpq_queue_pde_update((_dpdp), *(_spdp)); \
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xpq_flush_queue(); \
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} while (/*CONSTCOND*/0)
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#define PTE_UPDATES_FLUSH() do { \
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xpq_flush_queue(); \
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} while (/*CONSTCOND*/0)
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#endif
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static __inline paddr_t
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xpmap_mtop(paddr_t mpa)
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{
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return ((machine_to_phys_mapping[mpa >> PAGE_SHIFT] << PAGE_SHIFT) +
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(KERNTEXTOFF - KERNBASE_LOCORE)) | (mpa & ~PG_FRAME);
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}
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static __inline paddr_t
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xpmap_ptom(paddr_t ppa)
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{
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return (xpmap_phys_to_machine_mapping[(ppa -
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(KERNTEXTOFF - KERNBASE_LOCORE)) >> PAGE_SHIFT] << PAGE_SHIFT)
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| (ppa & ~PG_FRAME);
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}
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static __inline paddr_t
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xpmap_ptom_masked(paddr_t ppa)
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{
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return (xpmap_phys_to_machine_mapping[(ppa -
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(KERNTEXTOFF - KERNBASE_LOCORE)) >> PAGE_SHIFT] << PAGE_SHIFT);
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}
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#endif /* _XEN_XENPMAP_H_ */
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