Re: [PATCH v3 3/4] scripts: helper to generate x86_64 CPU ABI compat info

[Daniel P . Berrangé]

On Mon, Jun 07, 2021 at 02:58:42PM +0100, Daniel P. Berrangé wrote:
> This script is what is used to generate the docs data table in:
> 
>   docs/system/cpu-models-x86-abi.csv
> 
> It can be useful to run if adding new CPU models / versions and
> the csv needs updating.
> 
> Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
> ---
>  scripts/cpu-x86-uarch-abi.py | 194 +++++++++++++++++++++++++++++++++++
>  1 file changed, 194 insertions(+)
>  create mode 100644 scripts/cpu-x86-uarch-abi.py

Sorry I messed up just before sending this when I deleted some
code and incorrectly fixed up argv handling. Since you mentioned
you've queued it, it needs two changes

> 
> diff --git a/scripts/cpu-x86-uarch-abi.py b/scripts/cpu-x86-uarch-abi.py
> new file mode 100644
> index 0000000000..08acc52a81
> --- /dev/null
> +++ b/scripts/cpu-x86-uarch-abi.py
> @@ -0,0 +1,194 @@
> +#!/usr/bin/python3
> +#
> +# SPDX-License-Identifier: GPL-2.0-or-later
> +#
> +# A script to generate a CSV file showing the x86_64 ABI
> +# compatibility levels for each CPU model.
> +#
> +
> +from qemu import qmp
> +import sys
> +
> +if len(sys.argv) != 1:

s/1/2/

> +    print("syntax: %s QMP-SOCK\n\n" % __file__ +
> +          "Where QMP-SOCK points to a QEMU process such as\n\n" +
> +          " # qemu-system-x86_64 -qmp unix:/tmp/qmp,server,nowait " +
> +          "-display none -accel kvm", file=sys.stderr)
> +    sys.exit(1)
> +
> +# Mandatory CPUID features for each microarch ABI level
> +levels = [
> +    [ # x86-64 baseline
> +        "cmov",
> +        "cx8",
> +        "fpu",
> +        "fxsr",
> +        "mmx",
> +        "syscall",
> +        "sse",
> +        "sse2",
> +    ],
> +    [ # x86-64-v2
> +        "cx16",
> +        "lahf-lm",
> +        "popcnt",
> +        "pni",
> +        "sse4.1",
> +        "sse4.2",
> +        "ssse3",
> +    ],
> +    [ # x86-64-v3
> +        "avx",
> +        "avx2",
> +        "bmi1",
> +        "bmi2",
> +        "f16c",
> +        "fma",
> +        "abm",
> +        "movbe",
> +    ],
> +    [ # x86-64-v4
> +        "avx512f",
> +        "avx512bw",
> +        "avx512cd",
> +        "avx512dq",
> +        "avx512vl",
> +    ],
> +]
> +
> +# Assumes externally launched process such as
> +#
> +#   qemu-system-x86_64 -qmp unix:/tmp/qmp,server,nowait -display none -accel 
> kvm
> +#
> +# Note different results will be obtained with TCG, as
> +# TCG masks out certain features otherwise present in
> +# the CPU model definitions, as does KVM.
> +
> +
> +sock = sys.argv[1]
> +cmd = sys.argv[2]

Delete this line since sys.argv[2] is not required

> +shell = qmp.QEMUMonitorProtocol(sock)
> +shell.connect()
> +
> +models = shell.cmd("query-cpu-definitions")


Regards,
Daniel
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