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Re: [PATCH for-6.1] i386: do not call cpudef-only models functions for m

From: Philippe Mathieu-Daudé
Subject: Re: [PATCH for-6.1] i386: do not call cpudef-only models functions for max, host, base
Date: Thu, 22 Jul 2021 18:13:42 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.11.0

On 7/22/21 10:38 AM, Claudio Fontana wrote:

It seems the subject got dropped and the first line
used as subject... But I'm not sure you want to
start the description with it.

> properties set by function x86_cpu_apply_props, including
> kvm_default_props, tcg_default_props,
> and the "vendor" property for KVM and HVF,

This newline is what confuses me.

> are actually to be set only for cpu models in builtin_x86_defs,
> registered with x86_register_cpu_model_type, and not for
> cpu models "base", "max", and the subclass "host".
> This has been detected as a bug with Nested on AMD with cpu "host",
> as svm was not turned on by default, due to the wrongful setting of
> kvm_default_props via x86_cpu_apply_props.
> Rectify the bug introduced in commit "i386: split cpu accelerators"
> and document the functions that are builtin_x86_defs-only.
> Signed-off-by: Claudio Fontana <cfontana@suse.de>
> Tested-by: Alexander Bulekov <alxndr@bu.edu>
> Fixes: f5cc5a5c ("i386: split cpu accelerators from cpu.c,"...)
> Buglink: https://gitlab.com/qemu-project/qemu/-/issues/477

If you want to have gitlab closes the issue once merged, you'd
need to use Resolves:/Fixes: tag instead, see

> ---
>  target/i386/cpu.c         |  19 ++++++-
>  target/i386/host-cpu.c    |  13 +++--
>  target/i386/kvm/kvm-cpu.c | 105 ++++++++++++++++++++------------------
>  target/i386/tcg/tcg-cpu.c |  11 ++--
>  4 files changed, 89 insertions(+), 59 deletions(-)

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