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From: Laurent Vivier <lvivier@redhat.com>
To: qemu-devel@nongnu.org
Cc: jasowang@redhat.com, eric.auger@redhat.com,
	"Peter Xu" <peterx@redhat.com>,
	"Stefan Berger" <stefanb@linux.vnet.ibm.com>,
	mst@redhat.com, "Philippe Mathieu-Daudé" <philmd@linaro.org>,
	"David Hildenbrand" <david@redhat.com>,
	"Paolo Bonzini" <pbonzini@redhat.com>,
	marcandre.lureau@redhat.com, peter.maydell@linaro.org,
	"Laurent Vivier" <lvivier@redhat.com>
Subject: [PATCH v2 0/1] vhost-vdpa: skip TPM CRB memory section
Date: Tue,  4 Jul 2023 09:19:30 +0200	[thread overview]
Message-ID: <20230704071931.575888-1-lvivier@redhat.com> (raw)

An error is reported for vhost-vdpa case:
qemu-kvm: vhost_vdpa_listener_region_add received unaligned region

Marc-André has proposed a fix to this problem by skipping
the memory region owned by the TPM CRB but it seems more generic
to skip not aligned memory.

v1 of this series proposed to set the RAM_PROTECTED flag for the
TPM CRB memory region.

v2:
  - do not introduce special case for TPM CRB
  - do not set RAM_PROTECTED flag for TPM CRB
  - remove error_report() and replace it with a trace

For the previous discussions, see

https://lists.nongnu.org/archive/html/qemu-devel/2022-11/msg03670.html

and from Eric for VFIO:

https://lore.kernel.org/all/20220506132510.1847942-1-eric.auger@redhat.com/
https://lore.kernel.org/all/20220524091405.416256-1-eric.auger@redhat.com/

Bug: https://bugzilla.redhat.com/show_bug.cgi?id=2141965

Thanks,
Laurent

Laurent Vivier (1):
  vhost-vdpa: mute unaligned memory error report

 hw/virtio/trace-events | 2 ++
 hw/virtio/vhost-vdpa.c | 8 ++++++--
 2 files changed, 8 insertions(+), 2 deletions(-)

-- 
2.41.0



             reply	other threads:[~2023-07-04  7:20 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-07-04  7:19 Laurent Vivier [this message]
2023-07-04  7:19 ` [PATCH v2 1/1] vhost-vdpa: mute unaligned memory error report Laurent Vivier
2023-07-04  7:25   ` David Hildenbrand
2023-07-04  7:52     ` Laurent Vivier
2023-07-05  7:56   ` Jason Wang

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