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[0/4] enable ATS per pcie root port, not globally

Message ID 20220822090438.426748-1-ani@anisinha.ca
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Series enable ATS per pcie root port, not globally | expand

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Ani Sinha Aug. 22, 2022, 9:04 a.m. UTC 
This is towards a possible fix for RedHat ticket
https://bugzilla.redhat.com/show_bug.cgi?id=2089545 . 

Michael suggested we try to enable ATS per pcie root port instead of enabling it
globally by setting the ALL_PORTS flag to 1 in the Root Port ATS capability structure.
This patchset makes this happen.


Ani Sinha (4):
  hw/acpi: allow changes to DSDT and DMAR tables
  hw/acpi: set ATS capability explicitly per pcie root port
  tests/acpi/bios-table-test: add pcie root port device for DMAR test
  tests/acpi/bios-tables-test: update DSDT and DMAR table blobs

 hw/i386/acpi-build.c           |  74 ++++++++++++++++++++++++++++++++-
 tests/data/acpi/q35/DMAR.dmar  | Bin 120 -> 136 bytes
 tests/data/acpi/q35/DSDT.dmar  | Bin 0 -> 8421 bytes
 tests/qtest/bios-tables-test.c |   3 +-
 4 files changed, 74 insertions(+), 3 deletions(-)
 create mode 100644 tests/data/acpi/q35/DSDT.dmar