[PATCH RFC 1/4] docs: add a table showing x86-64 ABI compatibility levels

[Daniel P . Berrangé]

It is useful to know which CPUs satisfy each x86-64 ABI
compatibility level, when dealing with guest OS that require
something newer than the baseline ABI.

These ABI levels are defined in:

  https://gitlab.com/x86-psABIs/x86-64-ABI/

and supported by GCC, CLang, GLibC and more.

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
---
 MAINTAINERS                        |   2 +-
 docs/system/cpu-models-x86-abi.csv | 121 +++++++++++++++++++++++++++++
 docs/system/cpu-models-x86.rst.inc |  18 +++++
 3 files changed, 140 insertions(+), 1 deletion(-)
 create mode 100644 docs/system/cpu-models-x86-abi.csv

diff --git a/MAINTAINERS b/MAINTAINERS
index fbb228ef2b..bb8d60c458 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -344,7 +344,7 @@ F: tests/tcg/i386/
 F: tests/tcg/x86_64/
 F: hw/i386/
 F: disas/i386.c
-F: docs/system/cpu-models-x86.rst.inc
+F: docs/system/cpu-models-x86*
 T: git https://gitlab.com/ehabkost/qemu.git x86-next
 
 Xtensa TCG CPUs
diff --git a/docs/system/cpu-models-x86-abi.csv 
b/docs/system/cpu-models-x86-abi.csv
new file mode 100644
index 0000000000..4565e6a535
--- /dev/null
+++ b/docs/system/cpu-models-x86-abi.csv
@@ -0,0 +1,121 @@
+Model,baseline,v2,v3,v4
+486,,,,
+486-v1,,,,
+Broadwell,✅,✅,✅,
+Broadwell-IBRS,✅,✅,✅,
+Broadwell-noTSX,✅,✅,✅,
+Broadwell-noTSX-IBRS,✅,✅,✅,
+Broadwell-v1,✅,✅,✅,
+Broadwell-v2,✅,✅,✅,
+Broadwell-v3,✅,✅,✅,
+Broadwell-v4,✅,✅,✅,
+Cascadelake-Server,✅,✅,✅,✅
+Cascadelake-Server-noTSX,✅,✅,✅,✅
+Cascadelake-Server-v1,✅,✅,✅,✅
+Cascadelake-Server-v2,✅,✅,✅,✅
+Cascadelake-Server-v3,✅,✅,✅,✅
+Cascadelake-Server-v4,✅,✅,✅,✅
+Conroe,✅,,,
+Conroe-v1,✅,,,
+Cooperlake,✅,✅,✅,✅
+Cooperlake-v1,✅,✅,✅,✅
+Denverton,✅,✅,,
+Denverton-v1,✅,✅,,
+Denverton-v2,✅,✅,,
+Dhyana,✅,✅,✅,
+Dhyana-v1,✅,✅,✅,
+EPYC,✅,✅,✅,
+EPYC-IBPB,✅,✅,✅,
+EPYC-Rome,✅,✅,✅,
+EPYC-Rome-v1,✅,✅,✅,
+EPYC-v1,✅,✅,✅,
+EPYC-v2,✅,✅,✅,
+EPYC-v3,✅,✅,✅,
+Haswell,✅,✅,✅,
+Haswell-IBRS,✅,✅,✅,
+Haswell-noTSX,✅,✅,✅,
+Haswell-noTSX-IBRS,✅,✅,✅,
+Haswell-v1,✅,✅,✅,
+Haswell-v2,✅,✅,✅,
+Haswell-v3,✅,✅,✅,
+Haswell-v4,✅,✅,✅,
+Icelake-Client,✅,✅,✅,
+Icelake-Client-noTSX,✅,✅,✅,
+Icelake-Client-v1,✅,✅,✅,
+Icelake-Client-v2,✅,✅,✅,
+Icelake-Server,✅,✅,✅,✅
+Icelake-Server-noTSX,✅,✅,✅,✅
+Icelake-Server-v1,✅,✅,✅,✅
+Icelake-Server-v2,✅,✅,✅,✅
+Icelake-Server-v3,✅,✅,✅,✅
+Icelake-Server-v4,✅,✅,✅,✅
+IvyBridge,✅,✅,,
+IvyBridge-IBRS,✅,✅,,
+IvyBridge-v1,✅,✅,,
+IvyBridge-v2,✅,✅,,
+KnightsMill,✅,✅,✅,
+KnightsMill-v1,✅,✅,✅,
+Nehalem,✅,✅,,
+Nehalem-IBRS,✅,✅,,
+Nehalem-v1,✅,✅,,
+Nehalem-v2,✅,✅,,
+Opteron_G1,✅,,,
+Opteron_G1-v1,✅,,,
+Opteron_G2,✅,,,
+Opteron_G2-v1,✅,,,
+Opteron_G3,✅,,,
+Opteron_G3-v1,✅,,,
+Opteron_G4,✅,✅,,
+Opteron_G4-v1,✅,✅,,
+Opteron_G5,✅,✅,,
+Opteron_G5-v1,✅,✅,,
+Penryn,✅,,,
+Penryn-v1,✅,,,
+SandyBridge,✅,✅,,
+SandyBridge-IBRS,✅,✅,,
+SandyBridge-v1,✅,✅,,
+SandyBridge-v2,✅,✅,,
+Skylake-Client,✅,✅,✅,
+Skylake-Client-IBRS,✅,✅,✅,
+Skylake-Client-noTSX-IBRS,✅,✅,✅,
+Skylake-Client-v1,✅,✅,✅,
+Skylake-Client-v2,✅,✅,✅,
+Skylake-Client-v3,✅,✅,✅,
+Skylake-Server,✅,✅,✅,✅
+Skylake-Server-IBRS,✅,✅,✅,✅
+Skylake-Server-noTSX-IBRS,✅,✅,✅,✅
+Skylake-Server-v1,✅,✅,✅,✅
+Skylake-Server-v2,✅,✅,✅,✅
+Skylake-Server-v3,✅,✅,✅,✅
+Skylake-Server-v4,✅,✅,✅,✅
+Snowridge,✅,✅,,
+Snowridge-v1,✅,✅,,
+Snowridge-v2,✅,✅,,
+Westmere,✅,✅,,
+Westmere-IBRS,✅,✅,,
+Westmere-v1,✅,✅,,
+Westmere-v2,✅,✅,,
+athlon,,,,
+athlon-v1,,,,
+core2duo,✅,,,
+core2duo-v1,✅,,,
+coreduo,,,,
+coreduo-v1,,,,
+kvm32,,,,
+kvm32-v1,,,,
+kvm64,✅,,,
+kvm64-v1,✅,,,
+n270,,,,
+n270-v1,,,,
+pentium,,,,
+pentium-v1,,,,
+pentium2,,,,
+pentium2-v1,,,,
+pentium3,,,,
+pentium3-v1,,,,
+phenom,✅,,,
+phenom-v1,✅,,,
+qemu32,,,,
+qemu32-v1,,,,
+qemu64,✅,,,
+qemu64-v1,✅,,,
diff --git a/docs/system/cpu-models-x86.rst.inc 
b/docs/system/cpu-models-x86.rst.inc
index 9a2327828e..b964b29c78 100644
--- a/docs/system/cpu-models-x86.rst.inc
+++ b/docs/system/cpu-models-x86.rst.inc
@@ -39,6 +39,24 @@ CPU, as they would with "Host passthrough", but gives much 
of the
 benefit of passthrough, while making live migration safe.
 
 
+ABI compatibility levels for CPU models
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+The x86_64 architecture has a number of `ABI compatibility levels`_
+defined. Traditionally most operating systems and toolchains would
+only target the original baseline ABI. It is expected that in
+future OS and toolchains are likely to target newer ABIs. The
+following table illustrates which ABI compatibility levels can be
+satisfied by the QEMU CPU models
+
+.. _ABI compatibility levels: https://gitlab.com/x86-psABIs/x86-64-ABI/
+
+.. csv-table:: x86-64 ABI compatibility levels
+   :file: cpu-models-x86-abi.csv
+   :widths: 40,15,15,15,15
+   :header-rows: 1
+
+
 Preferred CPU models for Intel x86 hosts
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
-- 
2.29.2