Re: [libvirt] [Qemu-devel] [PATCH v5 for 2.0 3/3] abort QEMU if group name in option table doesn't match with defined option name

All the options are defined in qemu-options.hx. If we can't find a matched option definition by group name of option table, then the group name doesn't match with defined option name, it's not allowed from 2.0 Signed-off-by: Amos Kong <akong(a)redhat.com&gt; --- qemu-options.h | 12 ++++++++++++ util/qemu-config.c | 28 ++++++++++++++++++++++++++++ vl.c | 19 ++----------------- 3 files changed, 42 insertions(+), 17 deletions(-) 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 f610101..eba5428 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]; @@ -184,6 +192,20 @@ void qemu_add_drive_opts(QemuOptsList *list) abort(); } +/* check if the option is defined in qemu-options.hx */ +static bool opt_is_defined(const char *name) +{ + int i; + + for (i = 0; qemu_options[i].name; i++) { + if (!strcmp(qemu_options[i].name, name)) { + return true; + } + } + + return false; +} +

void qemu_add_opts(QemuOptsList *list) { int entries, i; @@ -193,6 +215,12 @@ void qemu_add_opts(QemuOptsList *list) for (i = 0; i < entries; i++) { if (vm_config_groups[i] == NULL) { vm_config_groups[i] = list; + if (!opt_is_defined(list->name)) { + error_report("Didn't find a matched option definition, " + "group name (%s) of option table must match with " + "defined option name (Since 2.0)", list->name); + abort(); + } return; } }

diff --git a/vl.c b/vl.c index 0464494..bd44c52 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" @@ -2082,22 +2081,6 @@ 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"); @@ -2842,6 +2825,8 @@ 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);