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*-user: Deprecate and disable -p pagesize

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This option controls the host page size.  From the mis-usage in
our own testsuite, this is easily confused with guest page size.

The only thing that occurs when changing the host page size is
that stuff breaks, because one cannot actually change the host
page size.  Therefore reject all but the no-op setting as part
of the deprecation process.

Reviewed-by: Warner Losh <imp@bsdimp.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Acked-by: Helge Deller <deller@gmx.de>
Message-Id: <20240102015808.132373-27-richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2024-01-02 12:58:01 +11:00
parent 6ada861951
commit 01e449809b
4 changed files with 22 additions and 14 deletions
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11
bsd-user/main.c
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@ -364,11 +364,12 @@ int main(int argc, char **argv)
} else if (!strcmp(r, "L")) {
interp_prefix = argv[optind++];
} else if (!strcmp(r, "p")) {
qemu_host_page_size = atoi(argv[optind++]);
if (qemu_host_page_size == 0 ||
(qemu_host_page_size & (qemu_host_page_size - 1)) != 0) {
fprintf(stderr, "page size must be a power of two\n");
exit(1);
unsigned size, want = qemu_real_host_page_size();
r = argv[optind++];
if (qemu_strtoui(r, NULL, 10, &size) || size != want) {
warn_report("Deprecated page size option cannot "
"change host page size (%u)", want);
}
} else if (!strcmp(r, "g")) {
gdbstub = g_strdup(argv[optind++]);