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bsd-user/main: Allow setting tb-size

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While qemu-system can set tb-size using -accel tcg,tb-size=n, there
is no similar knob for qemu-bsd-user. Add one in a way similar to how
one-insn-per-tb is already handled.

Suggested-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Warner Losh <imp@bsdimp.com>
Signed-off-by: Warner Losh <imp@bsdimp.com>
This commit is contained in:
Ilya Leoshkevich 2024-07-31 16:45:20 +02:00 committed by Warner Losh
parent 1f31243a8c
commit 8997452334
1 changed files with 9 additions and 0 deletions
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9
bsd-user/main.c
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@ -60,6 +60,7 @@ uintptr_t qemu_host_page_size;
intptr_t qemu_host_page_mask;
static bool opt_one_insn_per_tb;
static unsigned long opt_tb_size;
uintptr_t guest_base;
bool have_guest_base;
/*
@ -169,6 +170,7 @@ static void usage(void)
" (use '-d help' for a list of log items)\n"
"-D logfile write logs to 'logfile' (default stderr)\n"
"-one-insn-per-tb run with one guest instruction per emulated TB\n"
"-tb-size size TCG translation block cache size\n"
"-strace log system calls\n"
"-trace [[enable=]<pattern>][,events=<file>][,file=<file>]\n"
" specify tracing options\n"
@ -387,6 +389,11 @@ int main(int argc, char **argv)
seed_optarg = optarg;
} else if (!strcmp(r, "one-insn-per-tb")) {
opt_one_insn_per_tb = true;
} else if (!strcmp(r, "tb-size")) {
r = argv[optind++];
if (qemu_strtoul(r, NULL, 0, &opt_tb_size)) {
usage();
}
} else if (!strcmp(r, "strace")) {
do_strace = 1;
} else if (!strcmp(r, "trace")) {
@ -452,6 +459,8 @@ int main(int argc, char **argv)
accel_init_interfaces(ac);
object_property_set_bool(OBJECT(accel), "one-insn-per-tb",
opt_one_insn_per_tb, &error_abort);
object_property_set_int(OBJECT(accel), "tb-size",
opt_tb_size, &error_abort);
ac->init_machine(NULL);
}