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From: Markus Armbruster <armbru@redhat.com>
To: Gerd Hoffmann <kraxel@redhat.com>
Cc: qemu-devel@nongnu.org, "Yanan Wang" <wangyanan55@huawei.com>,
	"Marcel Apfelbaum" <marcel.apfelbaum@gmail.com>,
	"Dr. David Alan Gilbert" <dave@treblig.org>,
	"Eric Blake" <eblake@redhat.com>,
	"Zhao Liu" <zhao1.liu@intel.com>,
	"Philippe Mathieu-Daudé" <philmd@linaro.org>,
	"Laurent Vivier" <lvivier@redhat.com>,
	"Fabiano Rosas" <farosas@suse.de>,
	"Paolo Bonzini" <pbonzini@redhat.com>,
	"Eduardo Habkost" <eduardo@habkost.net>
Subject: Re: [PATCH v5 2/3] hw/uefi: add 'info firmware-log' hmp monitor command.
Date: Wed, 15 Oct 2025 16:05:42 +0200	[thread overview]
Message-ID: <87cy6ob6q1.fsf@pond.sub.org> (raw)
In-Reply-To: <20251015120637.1736402-3-kraxel@redhat.com> (Gerd Hoffmann's message of "Wed, 15 Oct 2025 14:06:36 +0200")

Gerd Hoffmann <kraxel@redhat.com> writes:

> This adds the hmp variant of the query-firmware-log qmp command.
>
> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
> ---
>  hw/uefi/ovmf-log.c   | 27 +++++++++++++++++++++++++++
>  hmp-commands-info.hx | 13 +++++++++++++
>  2 files changed, 40 insertions(+)
>
> diff --git a/hw/uefi/ovmf-log.c b/hw/uefi/ovmf-log.c
> index 85dda15ab6ad..e281a980a101 100644
> --- a/hw/uefi/ovmf-log.c
> +++ b/hw/uefi/ovmf-log.c
> @@ -231,3 +231,30 @@ FirmwareLog *qmp_query_firmware_log(Error **errp)
>      ret->log = g_base64_encode((const guchar *)log->str, log->len);
>      return ret;
>  }
> +
> +void hmp_info_firmware_log(Monitor *mon, const QDict *qdict)
> +{
> +    g_autofree gchar *log_esc = NULL;
> +    g_autofree guchar *log_out = NULL;
> +    Error *err = NULL;
> +    FirmwareLog *log;
> +    gsize log_len;
> +
> +    log = qmp_query_firmware_log(&err);
> +    if (err)  {
> +        hmp_handle_error(mon, err);
> +        return;
> +    }
> +
> +    g_assert(log != NULL);
> +    g_assert(log->log != NULL);

QAPI ensures this, so I wouldn't bother myself.  Up to you.

> +
> +    if (log->version) {
> +        g_autofree gchar *esc = g_strescape(log->version, NULL);
> +        monitor_printf(mon, "[ firmware version: %s ]\n", esc);
> +    }
> +
> +    log_out = g_base64_decode(log->log, &log_len);
> +    log_esc = g_strescape((gchar *)log_out, "\r\n");
> +    monitor_printf(mon, "%s\n", log_esc);
> +}
> diff --git a/hmp-commands-info.hx b/hmp-commands-info.hx
> index eaaa880c1b30..f0aef419923c 100644
> --- a/hmp-commands-info.hx
> +++ b/hmp-commands-info.hx
> @@ -990,3 +990,16 @@ SRST
>    ``info cryptodev``
>      Show the crypto devices.
>  ERST
> +
> +    {
> +        .name       = "firmware-log",
> +        .args_type  = "",
> +        .params     = "",
> +        .help       = "show the firmware (ovmf) debug log",
> +        .cmd        = hmp_info_firmware_log,
> +    },
> +
> +SRST
> +  ``info firmware-log``
> +    Show the firmware (ovmf) debug log.
> +ERST

With the update of monitor/hmp.h moved here from PATCH 1
Reviewed-by: Markus Armbruster <armbru@redhat.com>



  reply	other threads:[~2025-10-15 14:06 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-10-15 12:06 [PATCH v5 0/3] hw/uefi: add support for receiving the firmware log via monitor Gerd Hoffmann
2025-10-15 12:06 ` [PATCH v5 1/3] hw/uefi: add query-firmware-log monitor command Gerd Hoffmann
2025-10-15 14:01   ` Markus Armbruster
2025-10-15 14:34   ` Markus Armbruster
2025-10-15 12:06 ` [PATCH v5 2/3] hw/uefi: add 'info firmware-log' hmp " Gerd Hoffmann
2025-10-15 14:05   ` Markus Armbruster [this message]
2025-10-15 12:06 ` [PATCH v5 3/3] hw/uefi/ovmf-log: add maxsize parameter Gerd Hoffmann
2025-10-15 14:40   ` Markus Armbruster

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