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From: Stefan Berger <stefanb@linux.ibm.com>
To: Cornelia Huck <cohuck@redhat.com>,
	Eric Auger <eric.auger@redhat.com>,
	eric.auger.pro@gmail.com, qemu-devel@nongnu.org,
	alex.williamson@redhat.com
Cc: peter.maydell@linaro.org, stefanb@linux.vnet.ibm.com,
	david@gibson.dropbear.id.au
Subject: Re: [PATCH v3 for-7.1] vfio/common: remove spurious tpm-crb-cmd misalignment warning
Date: Thu, 24 Mar 2022 08:40:50 -0400	[thread overview]
Message-ID: <7a6e50a6-8bb7-0dd1-4429-0e9217d4a547@linux.ibm.com> (raw)
In-Reply-To: <87tubn602y.fsf@redhat.com>



On 3/24/22 07:50, Cornelia Huck wrote:
> On Wed, Mar 23 2022, Eric Auger <eric.auger@redhat.com> wrote:
> 
>> The CRB command buffer currently is a RAM MemoryRegion and given
>> its base address alignment, it causes an error report on
>> vfio_listener_region_add(). This region could have been a RAM device
>> region, easing the detection of such safe situation but this option
>> was not well received. So let's add a helper function that uses the
>> memory region owner type to detect the situation is safe wrt
>> the assignment. Other device types can be checked here if such kind
>> of problem occurs again.
>>
>> Signed-off-by: Eric Auger <eric.auger@redhat.com>
>> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
>>
>> ---
>>
>> v2 -> v3:
>> - Use TPM_IS_CRB()
>>
>> v1 -> v2:
>> - do not check the MR name but rather the owner type
>> ---
>>   hw/vfio/common.c     | 27 ++++++++++++++++++++++++++-
>>   hw/vfio/trace-events |  1 +
>>   2 files changed, 27 insertions(+), 1 deletion(-)
> 
> Reviewed-by: Cornelia Huck <cohuck@redhat.com>
> 
Acked-by: Stefan Berger <stefanb@linux.ibm.com>


  reply	other threads:[~2022-03-24 12:42 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-03-23 20:31 [PATCH v3 for-7.1] vfio/common: remove spurious tpm-crb-cmd misalignment warning Eric Auger
2022-03-24 11:50 ` Cornelia Huck
2022-03-24 12:40   ` Stefan Berger [this message]
2022-03-28 20:12 ` Alex Williamson
2022-04-25 19:58 ` Alex Williamson

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