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Re: [Qemu-devel] [RFC PATCH v3] Add HMP command "info memory-devices"
From: |
Igor Mammedov |
Subject: |
Re: [Qemu-devel] [RFC PATCH v3] Add HMP command "info memory-devices" |
Date: |
Fri, 12 Sep 2014 16:07:40 +0200 |
On Fri, 12 Sep 2014 15:52:03 +0800
Zhu Guihua <address@hidden> wrote:
> Provides HMP equivalent of QMP query-memory-devices command.
>
> Signed-off-by: Zhu Guihua <address@hidden>
> ---
>
> Changes since v2:
> - print address in hex.
> - change the loop control from while to for.
> - modify some variables' name.
> - optimize the time to print memory devices' kind.
>
> Changes since v1:
> - fix bug that accessing info->dimm when MemoryDeviceInfo is not PCDIMMDevice.
> - use enum to replace "dimm", and lookup typename in
> MemoryDeviceInfoKind_lookup[] instead of opencodding it.
>
> hmp-commands.hx | 2 ++
> hmp.c | 41 +++++++++++++++++++++++++++++++++++++++++
> hmp.h | 1 +
> monitor.c | 7 +++++++
> 4 files changed, 51 insertions(+)
>
> diff --git a/hmp-commands.hx b/hmp-commands.hx
> index f859f8d..0b1a4f7 100644
> --- a/hmp-commands.hx
> +++ b/hmp-commands.hx
> @@ -1778,6 +1778,8 @@ show qdev device model list
> show roms
> @item info tpm
> show the TPM device
> address@hidden info memory-devices
> +show the memory devices
> @end table
> ETEXI
>
> diff --git a/hmp.c b/hmp.c
> index 40a90da..bbeb8be 100644
> --- a/hmp.c
> +++ b/hmp.c
> @@ -1718,3 +1718,44 @@ void hmp_info_memdev(Monitor *mon, const QDict *qdict)
>
> qapi_free_MemdevList(memdev_list);
> }
> +
> +void hmp_info_memory_devices(Monitor *mon, const QDict *qdict)
> +{
> + Error *err = NULL;
> + MemoryDeviceInfoList *info_list = qmp_query_memory_devices(&err);
> + MemoryDeviceInfoList *info;
> + MemoryDeviceInfo *value;
> + PCDIMMDeviceInfo *di;
> + int i = 0;
> +
> + for (info = info_list; info; info = info->next) {
> + value = info->value;
> +
> + if (value) {
> + monitor_printf(mon, "Memory device %d\n", i++);
Using di->id instead of counter here could be less confusing.
> + monitor_printf(mon, " %s\n",
> + MemoryDeviceInfoKind_lookup[value->kind]);
may be following would be even better:
monitor_printf(mon, "Memory device [%s]: %s\n",
MemoryDeviceInfoKind_lookup[value->kind],
di->id);
and move this printf inside of "case MEMORY_DEVICE_INFO_KIND_DIMM" ...
> +
> + switch (value->kind) {
> + case MEMORY_DEVICE_INFO_KIND_DIMM:
> + di = value->dimm;
> +
> + monitor_printf(mon, " id: %s\n", di->id);
... and drop this
> + monitor_printf(mon, " addr: 0x%lx\n", di->addr);
s/lx/PRIx64/
> + monitor_printf(mon, " slot: %" PRId64 "\n", di->slot);
> + monitor_printf(mon, " node: %" PRId64 "\n", di->node);
> + monitor_printf(mon, " size: %" PRId64 "\n", di->size);
s/PRId64/PRIu64/
> + monitor_printf(mon, " memdev: %s\n", di->memdev);
> + monitor_printf(mon, " hotplugged: %s\n",
> + di->hotplugged ? "true" : "false");
> + monitor_printf(mon, " hotpluggable: %s\n",
> + di->hotpluggable ? "true" : "false");
> + break;
> + default:
> + break;
> + }
> + }
> + }
> +
> + qapi_free_MemoryDeviceInfoList(info_list);
> +}
> diff --git a/hmp.h b/hmp.h
> index 4fd3c4a..4bb5dca 100644
> --- a/hmp.h
> +++ b/hmp.h
> @@ -94,6 +94,7 @@ void hmp_cpu_add(Monitor *mon, const QDict *qdict);
> void hmp_object_add(Monitor *mon, const QDict *qdict);
> void hmp_object_del(Monitor *mon, const QDict *qdict);
> void hmp_info_memdev(Monitor *mon, const QDict *qdict);
> +void hmp_info_memory_devices(Monitor *mon, const QDict *qdict);
> void object_add_completion(ReadLineState *rs, int nb_args, const char *str);
> void object_del_completion(ReadLineState *rs, int nb_args, const char *str);
> void device_add_completion(ReadLineState *rs, int nb_args, const char *str);
> diff --git a/monitor.c b/monitor.c
> index 34cee74..fe88e0d 100644
> --- a/monitor.c
> +++ b/monitor.c
> @@ -2921,6 +2921,13 @@ static mon_cmd_t info_cmds[] = {
> .mhandler.cmd = hmp_info_memdev,
> },
> {
> + .name = "memory-devices",
> + .args_type = "",
> + .params = "",
> + .help = "show memory devices",
> + .mhandler.cmd = hmp_info_memory_devices,
> + },
> + {
> .name = NULL,
> },
> };