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| author | Alex Bennée <alex.bennee@linaro.org> | 2020-07-24 07:44:57 +0100 |
|---|---|---|
| committer | Alex Bennée <alex.bennee@linaro.org> | 2020-07-27 09:40:12 +0100 |
| commit | ad06ef0efbf7cafba5074a183fef1ad586f38caa (patch) | |
| tree | 96402a9217f1b906813c19ba1745daa8b08382f8 /include | |
| parent | 7d2d6522bbadfa8d9877e38bfa7413444fa64fbb (diff) | |
| download | qemu-ad06ef0efbf7cafba5074a183fef1ad586f38caa.zip | |
util: add qemu_get_host_physmem utility function
This will be used in a future patch. For POSIX systems _SC_PHYS_PAGES
isn't standardised but at least appears in the man pages for
Open/FreeBSD. The result is advisory so any users of it shouldn't just
fail if we can't work it out.
The win32 stub currently returns 0 until someone with a Windows system
can develop and test a patch.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Cc: BALATON Zoltan <balaton@eik.bme.hu>
Cc: Christian Ehrhardt <christian.ehrhardt@canonical.com>
Message-Id: <20200724064509.331-5-alex.bennee@linaro.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/qemu/osdep.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/include/qemu/osdep.h b/include/qemu/osdep.h index 45c217aa28..0b1298b3c9 100644 --- a/include/qemu/osdep.h +++ b/include/qemu/osdep.h @@ -668,4 +668,16 @@ static inline void qemu_reset_optind(void) */ char *qemu_get_host_name(Error **errp); +/** + * qemu_get_host_physmem: + * + * Operating system agnostic way of querying host memory. + * + * Returns amount of physical memory on the system. This is purely + * advisery and may return 0 if we can't work it out. At the other + * end we saturate to SIZE_MAX if you are lucky enough to have that + * much memory. + */ +size_t qemu_get_host_physmem(void); + #endif |