debcf6d24a
This enable to get multiple pages (via u2mfn_alloc_kpage) - kernel module holds pointer to it in per-FD struct, so the same FD can't be reused for the next request. More elegant solution should involve kernel module modification (stored page list or sth), but it is planed to replace this part of code with libxenvchan (or even more generic version), so this temporary solution should be enough.
29 lines
1.1 KiB
C
29 lines
1.1 KiB
C
/*
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* The Qubes OS Project, http://www.qubes-os.org
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*
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* Copyright (C) 2010 Rafal Wojtczuk <rafal@invisiblethingslab.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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*/
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int u2mfn_get_fd();
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int u2mfn_get_mfn_for_page(long va, int *mfn) ;
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int u2mfn_get_mfn_for_page_with_fd(int fd, long va, int *mfn) ;
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int u2mfn_get_last_mfn(int *mfn) ;
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int u2mfn_get_last_mfn_with_fd(int fd, int *mfn) ;
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char *u2mfn_alloc_kpage(void);
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char *u2mfn_alloc_kpage_with_fd(int fd);
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