mbox series

[RFC,0/4] ACPI MADT and FADT update according to the ACPI 6.0 spec

Message ID 20221006161450.69912-1-miguel.luis@oracle.com (mailing list archive)
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Series ACPI MADT and FADT update according to the ACPI 6.0 spec | expand

Message

Miguel Luis Oct. 6, 2022, 4:14 p.m. UTC 
The MADT table structure has been updated in commit 37f33084ed2e 
("acpi: arm/virt: madt: use build_append_int_noprefix() API to compose MADT table")
to include the 5.2.12.18 GIC ITS Structure and so table's revision also needs to
be updated. MADT and the FADT tables from the same spec need to be in sync and in
this case also the FADT needs to be updated.

Revision 6.0 of the ACPI FADT table introduces the field "Hypervisor Vendor
Identity" which is missing and must be included. Patch 2/4 includes a suggestion
for the value of this field by using the current acceleration name. This would
provide values like 'KVM' for example when KVM is used.

Ref: https://uefi.org/sites/default/files/resources/ACPI_6_0_Errata_A.PDF

Open to discussion, your comments, thoughts and suggestions are very welcome.

Thanks in advance.
Miguel

Miguel Luis (4):
  tests/acpi: virt: allow acpi MADT and FADT changes
  acpi: fadt: support revision 6.0 of the ACPI specification
  acpi: arm/virt: madt: bump to revision 4 accordingly to ACPI 6.0
    Errata A
  Step 6 & 7 of the bios-tables-test.c documented procedure.

 hw/acpi/aml-build.c               |  14 +++++++++++---
 hw/arm/virt-acpi-build.c          |  26 ++++++++++++--------------
 tests/data/acpi/virt/APIC         | Bin 168 -> 172 bytes
 tests/data/acpi/virt/APIC.memhp   | Bin 168 -> 172 bytes
 tests/data/acpi/virt/APIC.numamem | Bin 168 -> 172 bytes
 tests/data/acpi/virt/FACP         | Bin 268 -> 276 bytes
 tests/data/acpi/virt/FACP.memhp   | Bin 268 -> 276 bytes
 tests/data/acpi/virt/FACP.numamem | Bin 268 -> 276 bytes
 8 files changed, 23 insertions(+), 17 deletions(-)