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util: move qemu_real_host_page_size/mask to osdep.h

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These only depend on the host and therefore belong in the common
osdep, not in a target-dependent object.

While at it, query the host during an init constructor, which guarantees
the page size will be well-defined throughout the execution of the program.

Suggested-by: Richard Henderson <rth@twiddle.net>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Emilio G. Cota <cota@braap.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Emilio G. Cota 2017-07-15 03:24:27 -04:00 • committed by Richard Henderson
parent 619205fd1f
commit 3637cf58f9
5 changed files with 25 additions and 6 deletions
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6
include/qemu/osdep.h
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@ -505,6 +505,12 @@ char *qemu_get_pid_name(pid_t pid);
*/
pid_t qemu_fork(Error **errp);
/* Using intptr_t ensures that qemu_*_page_mask is sign-extended even
* when intptr_t is 32-bit and we are aligning a long long.
*/
extern uintptr_t qemu_real_host_page_size;
extern intptr_t qemu_real_host_page_mask;
extern int qemu_icache_linesize;
extern int qemu_dcache_linesize;