[PATCH v4 0/2] TPM-CRB: Remove spurious error report when used with VFIO

Eric Auger posted 2 patches 2 years, 1 month ago
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git fetch https://github.com/patchew-project/qemu tags/patchew/20220208133842.112017-1-eric.auger@redhat.com
hw/tpm/tpm_crb.c     | 23 +++++++++++++++++++++--
hw/vfio/common.c     | 15 ++++++++++++++-
hw/vfio/trace-events |  1 +
3 files changed, 36 insertions(+), 3 deletions(-)
[PATCH v4 0/2] TPM-CRB: Remove spurious error report when used with VFIO
Posted by Eric Auger 2 years, 1 month ago
This series aims at removing a spurious error message we get when
launching a guest with a TPM-CRB device and VFIO-PCI devices.

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 series proposes to use a ram-device
region instead which helps in better assessing the dma map error
failure on VFIO side.

Best Regards

Eric

This series can be found at:
https://github.com/eauger/qemu/tree/tpm-crb-ram-device-v4

History:
v3 -> v4:
- Use PRIxPTR
- call vmstate_unregister_ram

v2 -> v3: respin by Philippe to remove meson changes

v1 -> v2:
- added tpm_crb_unrealize (dared to keep Stefan's T-b though)


Eric Auger (2):
  tpm: CRB: Use ram_device for "tpm-crb-cmd" region
  hw/vfio/common: Silence ram device offset alignment error traces

 hw/tpm/tpm_crb.c     | 23 +++++++++++++++++++++--
 hw/vfio/common.c     | 15 ++++++++++++++-
 hw/vfio/trace-events |  1 +
 3 files changed, 36 insertions(+), 3 deletions(-)

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2.26.3