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From: Markus Armbruster <armbru@redhat.com>
To: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Michael Tsirkin <mst@redhat.com>,  <qemu-devel@nongnu.org>,
	<shiju.jose@huawei.com>,  <armbru@redhat.com>,
	 <linuxarm@huawei.com>, <linux-cxl@vger.kernel.org>,
	 Ravi Shankar <venkataravis@micron.com>
Subject: Re: [PATCH qemu v3 3/5] hw/cxl/events: Updates for rev3.2 general media event record
Date: Wed, 14 Jan 2026 19:32:12 +0100	[thread overview]
Message-ID: <87wm1kyrir.fsf@pond.sub.org> (raw)
In-Reply-To: <20260114142713.617806-4-Jonathan.Cameron@huawei.com> (Jonathan Cameron's message of "Wed, 14 Jan 2026 14:27:11 +0000")

Jonathan Cameron <Jonathan.Cameron@huawei.com> writes:

> From: Shiju Jose <shiju.jose@huawei.com>
>
> CXL spec rev3.2 section 8.2.10.2.1.1 Table 8-57, general media event
> table has updated with following new fields.
> 1. Advanced Programmable Corrected Memory Error Threshold Event Flags
> 2. Corrected Memory Error Count at Event
> 3. Memory Event Sub-Type
> 4. Support for component ID in the PLDM format.
>
> Add updates for the above spec changes in the CXL general media event
> reporting and QMP command to inject general media event.
>
> In order to have one consistent source of references, update all to
> references for this command to CXL r3.2.
>
> Signed-off-by: Shiju Jose <shiju.jose@huawei.com>
> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
> ---
> v3: Update all references to 3.2 for consistency.
> ---
>  qapi/cxl.json               | 25 +++++++++++++++++++------
>  include/hw/cxl/cxl_events.h |  7 +++++--
>  hw/mem/cxl_type3.c          | 29 +++++++++++++++++++++++++++++
>  hw/mem/cxl_type3_stubs.c    |  6 ++++++
>  4 files changed, 59 insertions(+), 8 deletions(-)
>
> diff --git a/qapi/cxl.json b/qapi/cxl.json
> index 82001c0591d8..c159687f849c 100644
> --- a/qapi/cxl.json
> +++ b/qapi/cxl.json
> @@ -64,22 +64,22 @@
>  ##
>  # @CXLGeneralMediaEvent:
>  #
> -# Event record for a General Media Event (CXL r3.0 8.2.9.2.1.1).
> +# Event record for a General Media Event (CXL r3.2 8.2.10.2.1.1).
>  #
>  # @dpa: Device Physical Address (relative to @path device).  Note
> -#     lower bits include some flags.  See CXL r3.0 Table 8-43 General
> +#     lower bits include some flags.  See CXL r3.2 Table 8-57 General
>  #     Media Event Record, Physical Address.
>  #
>  # @descriptor: Memory Event Descriptor with additional memory event
> -#     information.  See CXL r3.0 Table 8-43 General Media Event
> +#     information.  See CXL r3.2 Table 8-57 General Media Event
>  #     Record, Memory Event Descriptor for bit definitions.
>  #
> -# @type: Type of memory event that occurred.  See CXL r3.0 Table 8-43
> +# @type: Type of memory event that occurred.  See CXL r3.2 Table 8-57
>  #     General Media Event Record, Memory Event Type for possible
>  #     values.
>  #
>  # @transaction-type: Type of first transaction that caused the event
> -#     to occur.  See CXL r3.0 Table 8-43 General Media Event Record,
> +#     to occur.  See CXL r3-2 Table 8-57 General Media Event Record,
>  #     Transaction Type for possible values.
>  #
>  # @channel: The channel of the memory event location.  A channel is an
> @@ -94,6 +94,16 @@
>  # @component-id: Device specific component identifier for the event.
>  #     May describe a field replaceable sub-component of the device.
>  #
> +# @is-comp-id-pldm: This flag specifies whether the device-specific
> +#     component identifier format follows PLDM.
> +#
> +# @cme-ev-flags: Advanced programmable corrected memory error
> +#     threshold event flags.
> +#
> +# @cme-count: Corrected memory error count at event.
> +#
> +# @sub-type: Memory event sub-type.
> +#
>  # Since: 8.1
>  ##
>  { 'struct': 'CXLGeneralMediaEvent',
> @@ -101,7 +111,10 @@
>    'data': { 'dpa': 'uint64', 'descriptor': 'uint8',
>              'type': 'uint8', 'transaction-type': 'uint8',
>              '*channel': 'uint8', '*rank': 'uint8',
> -            '*device': 'uint32', '*component-id': 'str' } }
> +            '*device': 'uint32', '*component-id': 'str',
> +            '*is-comp-id-pldm':'bool',
> +            '*cme-ev-flags':'uint8', '*cme-count':'uint32',
> +            'sub-type':'uint8' } }
>  
>  ##
>  # @cxl-inject-general-media-event:
   #
   # Inject an event record for a General Media Event (CXL r3.0
   # 8.2.9.2.1.1).  This event type is reported via one of the event

Should we update this reference as well?

   # logs specified via the log parameter.
   #
   # Since: 8.1
   ##
   { 'command': 'cxl-inject-general-media-event',
     'data': 'CXLGeneralMediaEvent' }

[...]


  reply	other threads:[~2026-01-14 18:32 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-01-14 14:27 [PATCH qemu v3 0/5] cxl: r3.2 specification event updates Jonathan Cameron
2026-01-14 14:27 ` [PATCH qemu v3 1/5] qapi: cxl: Refactor CXL event injection for common commands arguments Jonathan Cameron
2026-01-14 14:27 ` [PATCH qemu v3 2/5] hw/cxl/events: Update for rev3.2 common event record format Jonathan Cameron
2026-01-14 14:27 ` [PATCH qemu v3 3/5] hw/cxl/events: Updates for rev3.2 general media event record Jonathan Cameron
2026-01-14 18:32   ` Markus Armbruster [this message]
2026-01-14 14:27 ` [PATCH qemu v3 4/5] hw/cxl/events: Updates for rev3.2 DRAM " Jonathan Cameron
2026-01-14 18:33   ` Markus Armbruster
2026-01-14 14:27 ` [PATCH qemu v3 5/5] hw/cxl/events: Updates for rev3.2 memory module " Jonathan Cameron
2026-01-14 18:33   ` Markus Armbruster

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