12:09 a.m.
vm_config_groups[] only contains part of the options which have
parameters, and all options which have no parameter aren't added
to vm_config_groups[]. Current query-command-line-options only
checks options from vm_config_groups[], so some options will
be lost.
We have macro in qemu-options.hx to generate a table that
contains all the options. This patch tries to query options
from the table.
Then we won't lose the legacy options that weren't added to
vm_config_groups[] (eg: -vnc, -smbios). The options that have
no parameter will also be returned (eg: -enable-fips)
Some options that have parameters have a NULL desc list, some
options don't have parameters, and "parameters" is mandatory
in the past. So we add a new field "unspecified-parameters" to
present if the option takes unspecified parameters.
This patch also fixes options to match their actual command-line
spelling rather than an alternate name associated with the
option table in use by the command.
Signed-off-by: Amos Kong <akong(a)redhat.com>
---
qapi-schema.json | 9 +++++++--
qemu-options.h | 12 ++++++++++++
util/qemu-config.c | 43 ++++++++++++++++++++++++++++++++++++-------
vl.c | 19 ++-----------------
4 files changed, 57 insertions(+), 26 deletions(-)
diff --git a/qapi-schema.json b/qapi-schema.json
index 193e7e4..fb7ca1b 100644
--- a/qapi-schema.json
+++ b/qapi-schema.json
@@ -4070,12 +4070,17 @@
#
# @option: option name
#
-# @parameters: an array of @CommandLineParameterInfo
+# @parameters: array of @CommandLineParameterInfo, possibly empty
+# @unspecified-parameters: @optional present if the @parameters array is empty.
+# If true, then the option takes unspecified
+# parameters, if false, then the option takes no
+# parameter (since 2.0)
#
# Since 1.5
##
{ 'type': 'CommandLineOptionInfo',
- 'data': { 'option': 'str', 'parameters':
['CommandLineParameterInfo'] } }
+ 'data': { 'option': 'str', 'parameters':
['CommandLineParameterInfo'],
+ '*unspecified-parameters': 'bool' } }
##
# @query-command-line-options:
diff --git a/qemu-options.h b/qemu-options.h
index 89a009e..4024487 100644
--- a/qemu-options.h
+++ b/qemu-options.h
@@ -28,9 +28,21 @@
#ifndef _QEMU_OPTIONS_H_
#define _QEMU_OPTIONS_H_
+#include "sysemu/arch_init.h"
+
enum {
#define QEMU_OPTIONS_GENERATE_ENUM
#include "qemu-options-wrapper.h"
};
+#define HAS_ARG 0x0001
+
+typedef struct QEMUOption {
+ const char *name;
+ int flags;
+ int index;
+ uint32_t arch_mask;
+} QEMUOption;
+
+extern const QEMUOption qemu_options[];
#endif
diff --git a/util/qemu-config.c b/util/qemu-config.c
index d2facfd..ea8a419 100644
--- a/util/qemu-config.c
+++ b/util/qemu-config.c
@@ -6,6 +6,14 @@
#include "hw/qdev.h"
#include "qapi/error.h"
#include "qmp-commands.h"
+#include "qemu-options.h"
+
+const QEMUOption qemu_options[] = {
+ { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
+#define QEMU_OPTIONS_GENERATE_OPTIONS
+#include "qemu-options-wrapper.h"
+ { NULL },
+};
static QemuOptsList *vm_config_groups[32];
static QemuOptsList *drive_config_groups[4];
@@ -78,6 +86,17 @@ static CommandLineParameterInfoList *get_param_infolist(const
QemuOptDesc *desc)
return param_list;
}
+static int get_group_index(const char *name)
+{
+ int i;
+
+ for (i = 0; vm_config_groups[i] != NULL; i++) {
+ if (!strcmp(vm_config_groups[i]->name, name)) {
+ return i;
+ }
+ }
+ return -1;
+}
/* remove repeated entry from the info list */
static void cleanup_infolist(CommandLineParameterInfoList *head)
{
@@ -137,17 +156,25 @@ CommandLineOptionInfoList *qmp_query_command_line_options(bool
has_option,
{
CommandLineOptionInfoList *conf_list = NULL, *entry;
CommandLineOptionInfo *info;
- int i;
+ int i, idx;
- for (i = 0; vm_config_groups[i] != NULL; i++) {
- if (!has_option || !strcmp(option, vm_config_groups[i]->name)) {
+ for (i = 0; qemu_options[i].name; i++) {
+ if (!has_option || !strcmp(option, qemu_options[i].name)) {
info = g_malloc0(sizeof(*info));
- info->option = g_strdup(vm_config_groups[i]->name);
- if (!strcmp("drive", vm_config_groups[i]->name)) {
+ info->option = g_strdup(qemu_options[i].name);
+
+ idx = get_group_index(qemu_options[i].name);
+
+ if (!strcmp("drive", qemu_options[i].name)) {
info->parameters = get_drive_infolist();
- } else {
+ } else if (idx >= 0) {
info->parameters =
- get_param_infolist(vm_config_groups[i]->desc);
+ get_param_infolist(vm_config_groups[idx]->desc);
+ }
+
+ if (!info->parameters) {
+ info->has_unspecified_parameters = true;
+ info->unspecified_parameters = qemu_options[i].flags & HAS_ARG;
}
entry = g_malloc0(sizeof(*entry));
entry->value = info;
@@ -163,6 +190,8 @@ CommandLineOptionInfoList *qmp_query_command_line_options(bool
has_option,
return conf_list;
}
+#undef HAS_ARG
+
QemuOptsList *qemu_find_opts_err(const char *group, Error **errp)
{
return find_list(vm_config_groups, group, errp);
diff --git a/vl.c b/vl.c
index 685a7a9..a967b17 100644
--- a/vl.c
+++ b/vl.c
@@ -111,7 +111,6 @@ int main(int argc, char **argv)
#include "trace/control.h"
#include "qemu/queue.h"
#include "sysemu/cpus.h"
-#include "sysemu/arch_init.h"
#include "qemu/osdep.h"
#include "ui/qemu-spice.h"
@@ -1990,22 +1989,6 @@ static void help(int exitcode)
exit(exitcode);
}
-#define HAS_ARG 0x0001
-
-typedef struct QEMUOption {
- const char *name;
- int flags;
- int index;
- uint32_t arch_mask;
-} QEMUOption;
-
-static const QEMUOption qemu_options[] = {
- { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
-#define QEMU_OPTIONS_GENERATE_OPTIONS
-#include "qemu-options-wrapper.h"
- { NULL },
-};
-
static bool vga_available(void)
{
return object_class_by_name("VGA") ||
object_class_by_name("isa-vga");
@@ -2721,6 +2704,8 @@ static const QEMUOption *lookup_opt(int argc, char **argv,
return popt;
}
+#undef HAS_ARG
+
static gpointer malloc_and_trace(gsize n_bytes)
{
void *ptr = malloc(n_bytes);
--
1.8.5.3