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https://github.com/xen-project/xen.git
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Hollis Blanchard
bdd61e7052
It's a long story, but basically a small divergence in xenppc-unstable meant a large number of changesets couldn't be directly imported to xen-unstable, so this changeset includes all of them. Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com>
109 lines
3.7 KiB
C
109 lines
3.7 KiB
C
/*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (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, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#ifndef _FLATDEVTREE_H_
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#define _FLATDEVTREE_H_
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#include "flatdevtree_env.h"
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/* Definitions used by the flattened device tree */
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#define OF_DT_HEADER 0xd00dfeed /* marker */
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#define OF_DT_BEGIN_NODE 0x1 /* Start of node, full name */
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#define OF_DT_END_NODE 0x2 /* End node */
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#define OF_DT_PROP 0x3 /* Property: name off, size, content */
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#define OF_DT_NOP 0x4 /* nop */
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#define OF_DT_END 0x9
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#define OF_DT_VERSION 0x10
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struct boot_param_header {
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u32 magic; /* magic word OF_DT_HEADER */
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u32 totalsize; /* total size of DT block */
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u32 off_dt_struct; /* offset to structure */
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u32 off_dt_strings; /* offset to strings */
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u32 off_mem_rsvmap; /* offset to memory reserve map */
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u32 version; /* format version */
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u32 last_comp_version; /* last compatible version */
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/* version 2 fields below */
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u32 boot_cpuid_phys; /* Physical CPU id we're booting on */
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/* version 3 fields below */
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u32 dt_strings_size; /* size of the DT strings block */
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};
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struct ft_cxt {
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struct boot_param_header *bph;
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int max_size; /* maximum size of tree */
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int overflow; /* set when this happens */
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char *p, *pstr, *pres; /* running pointers */
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char *p_begin, *pstr_begin, *pres_begin; /* starting pointers */
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char *p_anchor; /* start of constructed area */
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int struct_size, strings_size, res_size;
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};
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void ft_begin_node(struct ft_cxt *cxt, const char *name);
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void ft_end_node(struct ft_cxt *cxt);
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void ft_begin_tree(struct ft_cxt *cxt);
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int ft_end_tree(struct ft_cxt *cxt);
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void ft_nop(struct ft_cxt *cxt);
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void ft_prop(struct ft_cxt *cxt, const char *name,
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const void *data, unsigned int sz);
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void ft_prop_str(struct ft_cxt *cxt, const char *name, const char *str);
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void ft_prop_int(struct ft_cxt *cxt, const char *name, unsigned int val);
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void ft_begin(struct ft_cxt *cxt, void *blob, unsigned int max_size);
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void ft_add_rsvmap(struct ft_cxt *cxt, u64 physaddr, u64 size);
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int ft_set_rsvmap(void *bphp, int m, u64 physaddr, u64 size);
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void ft_dump_blob(const void *bphp);
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void ft_backtrack_node(struct ft_cxt *cxt);
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void ft_merge_blob(struct ft_cxt *cxt, void *blob);
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void *ft_find_node(const void *bphp, const char *srch_path);
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int ft_get_prop(const void *bphp, const void *node, const char *propname,
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void *buf, const unsigned int buflen);
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int ft_set_prop(void **bphp, const void *node, const char *propname,
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const void *buf, const unsigned int buflen);
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static inline char *ft_strrchr(const char *s, int c)
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{
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const char *p = s + strlen(s);
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do {
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if (*p == (char)c)
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return (char *)p;
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} while (--p >= s);
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return NULL;
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}
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/* 'path' is modified */
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static inline void ft_parentize(char *path, int leave_slash)
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{
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char *s = &path[strlen(path) - 1];
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if (*s == '/')
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*s = '\0';
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s = ft_strrchr(path, '/');
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if (s != NULL) {
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if (leave_slash)
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s[1] = '\0';
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else if (s[0] == '/')
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s[0] = '\0';
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}
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}
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#endif /* FLATDEVTREE_H */
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