[v2] vhost-vdpa: skip TPM CRB memory section

[PATCH v2 0/1] vhost-vdpa: skip TPM CRB memory section

Laurent Vivier posted 1 patch 9 months, 4 weeks ago

Diff against v1 v1
Download series mbox

Patches applied successfully (tree, apply log)
git fetch https://github.com/patchew-project/qemu tags/patchew/20230704071931.575888-1-lvivier@redhat.com

Maintainers: "Michael S. Tsirkin" <mst@redhat.com>

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

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[PATCH v2 0/1] vhost-vdpa: skip TPM CRB memory section

Posted by Laurent Vivier 9 months, 4 weeks ago

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