Re: [Qemu-devel] [PATCH v3] i386: Add new Hygon 'Dhyana' CPU model

["Daniel P. Berrangé" <berrange@redhat.com>]

On Tue, Apr 16, 2019 at 08:06:13PM +0800, Pu Wen wrote:
> Add a new base CPU model called 'Dhyana' to model processors from Hygon
> Dhyana(family 18h), which derived from AMD EPYC(family 17h).
> 
> The following features bits have been removed compare to AMD EPYC:
> aes, pclmulqdq, sha_ni
> 
> The Hygon Dhyana support to KVM in Linux is already accepted upstream[1].
> So add Hygon Dhyana support to Qemu is necessary to create Hygon's own
> CPU model.
> 
> Reference:
> [1] https://git.kernel.org/tip/fec98069fb72fb656304a3e52265e0c2fc9adf87
> 
> Signed-off-by: Pu Wen <puwen@hygon.cn>
> ---
> v2->v3:
>   - Remove the Dhyana machine types in the back-compat property tables
>     since there is no Dhyana CPU model in older QEMU releases.
> 
> v1->v2:
>   - Remove CPU model 'Dhyana' and rename the CPU model 'Dhyana-IBPB' to
>     'Dhyana' because Dhyana CPUs already have the IBPB feature.
> 
>  target/i386/cpu.c | 50 ++++++++++++++++++++++++++++++++++++++++++++++++++
>  target/i386/cpu.h |  2 ++
>  2 files changed, 52 insertions(+)

Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>


Regards,
Daniel
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