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[Qemu-devel] [PATCH] qemu: Add support for suffixes to the -m parameter
From: |
Amit Shah |
Subject: |
[Qemu-devel] [PATCH] qemu: Add support for suffixes to the -m parameter |
Date: |
Fri, 11 Apr 2008 20:43:50 +0300 |
The -m parameter doesn't take suffixes like G or M currently
and it doesn't complain if such a suffix is given.
Add support for the G and M suffixes and update the usage
instructions appropriately.
Signed-off-by: Amit Shah <address@hidden>
---
qemu/vl.c | 25 +++++++++++++++++++++++--
1 files changed, 23 insertions(+), 2 deletions(-)
diff --git a/qemu/vl.c b/qemu/vl.c
index 49d9af2..1c6f603 100644
--- a/qemu/vl.c
+++ b/qemu/vl.c
@@ -8085,7 +8085,9 @@ static void help(int exitcode)
#ifdef TARGET_I386
"-no-fd-bootchk disable boot signature checking for floppy disks\n"
#endif
- "-m megs set virtual RAM size to megs MB [default=%d]\n"
+ "-m size set virtual RAM size to size megs [default=%d
MB].\n"
+ " Optional suffixes 'M' (megabyte) and 'G'
(gigabyte)"
+ " are supported\n"
"-smp n set the number of CPUs to 'n' [default=1]\n"
"-nographic disable graphical output and redirect serial I/Os
to console\n"
"-portrait rotate graphical output 90 deg left (only PXA
LCD)\n"
@@ -9140,7 +9142,26 @@ int main(int argc, char **argv)
help(0);
break;
case QEMU_OPTION_m:
- ram_size = (int64_t)atoi(optarg) * 1024 * 1024;
+ errno = 0;
+ ram_size = (uint64_t) strtoul(optarg, (char **)&optarg, 0);
+ if (errno)
+ help(1);
+ switch (*optarg) {
+ case 'G':
+ case 'g':
+ ram_size *= 1024;
+ /* fall through */
+ case 'M':
+ case 'm':
+ case '\0':
+ ram_size *= 1024 * 1024;
+ optarg++;
+ break;
+ default:
+ help(1);
+ break;
+ }
+
if (ram_size <= 0)
help(1);
if (ram_size > PHYS_RAM_MAX_SIZE) {
--
1.4.4.2
- [Qemu-devel] [PATCH] qemu: Add support for suffixes to the -m parameter,
Amit Shah <=