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exec: Extract 'page-vary.h' header

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In the next commit we will extract the generic code out of
page-vary.c, only keeping the target specific code. Both
files will use the same TargetPageBits structure, so make
its declaration in a shared header.

As the common header can not use target specific types,
use a uint64_t to hold the page mask value, and add a
cast back to target_long in the TARGET_PAGE_MASK definitions.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20210322112427.4045204-3-f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2021-03-22 12:24:25 +01:00
parent 6670d4d0e3
commit 27eb9d65ff
2 changed files with 33 additions and 7 deletions
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29
include/exec/page-vary.h Normal file
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@ -0,0 +1,29 @@
/*
* Definitions for cpus with variable page sizes.
*
* Copyright (c) 2003 Fabrice Bellard
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, see <http://www.gnu.org/licenses/>.
*/
#ifndef EXEC_PAGE_VARY_H
#define EXEC_PAGE_VARY_H
typedef struct {
bool decided;
int bits;
uint64_t mask;
} TargetPageBits;
#endif /* EXEC_PAGE_VARY_H */