On Thu, Jan 27, 2022 at 08:54:02PM +0000, Mark Cave-Ayland wrote:
> This displays detailed information about the device registers and timers to
> aid
> debugging problems with timers and interrupts.
>
> Signed-off-by: Mark Cave-Ayland <mark.cave-ayl...@ilande.co.uk>
> ---
> hmp-commands-info.hx | 12 ++++++
> hw/misc/mos6522.c | 92 ++++++++++++++++++++++++++++++++++++++++++++
> 2 files changed, 104 insertions(+)
>
> diff --git a/hmp-commands-info.hx b/hmp-commands-info.hx
> index e90f20a107..4e714e79a2 100644
> --- a/hmp-commands-info.hx
> +++ b/hmp-commands-info.hx
> @@ -879,3 +879,15 @@ SRST
> ``info sgx``
> Show intel SGX information.
> ERST
> +
> + {
> + .name = "via",
> + .args_type = "",
> + .params = "",
> + .help = "show guest 6522 VIA devices",
> + },
> +
> +SRST
> + ``info via``
> + Show guest 6522 VIA devices.
> +ERST
> diff --git a/hw/misc/mos6522.c b/hw/misc/mos6522.c
> index aaae195d63..cfa6a9c44b 100644
> --- a/hw/misc/mos6522.c
> +++ b/hw/misc/mos6522.c
> @@ -30,6 +30,8 @@
> #include "hw/misc/mos6522.h"
> #include "hw/qdev-properties.h"
> #include "migration/vmstate.h"
> +#include "monitor/monitor.h"
> +#include "qapi/type-helpers.h"
> #include "qemu/timer.h"
> #include "qemu/cutils.h"
> #include "qemu/log.h"
> @@ -415,6 +417,95 @@ void mos6522_write(void *opaque, hwaddr addr, uint64_t
> val, unsigned size)
> }
> }
>
> +static int qmp_x_query_via_foreach(Object *obj, void *opaque)
> +
> +static HumanReadableText *qmp_x_query_via(Error **errp)
> +{
> + g_autoptr(GString) buf = g_string_new("");
> +
> + object_child_foreach_recursive(object_get_root(),
> + qmp_x_query_via_foreach, buf);
> +
> + return human_readable_text_from_str(buf);
> +}
This provides a code handler for a QMP command which is good,
but doesn't ever define the QMP command in the qapi/ schema.
> static const MemoryRegionOps mos6522_ops = {
> .read = mos6522_read,
> .write = mos6522_write,
> @@ -547,6 +638,7 @@ static const TypeInfo mos6522_type_info = {
> static void mos6522_register_types(void)
> {
> type_register_static(&mos6522_type_info);
> + monitor_register_hmp_info_hrt("via", qmp_x_query_via);
This only registers the HMP counterpart.
The idea of the HumanReadableText handler is that it is calling
a QMP command that is exposed to apps.
> }
Regards,
Daniel
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