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1809 decky 1
/*
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 * Copyright (c) 2006 Martin Decky
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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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 *
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 * - 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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 * - 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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 * - 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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/** @addtogroup ia32xen_mm 
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 * @{
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 */
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/** @file
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 * @ingroup ia32xen_mm
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 */
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#include <mm/tlb.h>
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#include <arch/mm/asid.h>
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#include <arch/asm.h>
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#include <arch/types.h>
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#include <arch/hypercall.h>
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/** Invalidate all entries in TLB. */
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void tlb_invalidate_all(void)
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{
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    mmuext_op_t mmu_ext;
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    mmu_ext.cmd = MMUEXT_TLB_FLUSH_LOCAL;
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    xen_mmuext_op(&mmu_ext, 1, NULL, DOMID_SELF);
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}
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/** Invalidate all entries in TLB that belong to specified address space.
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 *
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 * @param asid This parameter is ignored as the architecture doesn't support it.
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 */
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void tlb_invalidate_asid(asid_t asid)
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{
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    tlb_invalidate_all();
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}
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/** Invalidate TLB entries for specified page range belonging to specified address space.
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 *
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 * @param asid This parameter is ignored as the architecture doesn't support it.
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 * @param page Address of the first page whose entry is to be invalidated.
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 * @param cnt Number of entries to invalidate.
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 */
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void tlb_invalidate_pages(asid_t asid, uintptr_t page, count_t cnt)
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{
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    int i;
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    for (i = 0; i < cnt; i++)
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        invlpg(page + i * PAGE_SIZE);
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}
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/** @}
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 */