From: Richard Henderson <richard.henderson@linaro.org>
To: Andrew Jones <drjones@redhat.com>,
qemu-devel@nongnu.org, qemu-arm@nongnu.org
Cc: peter.maydell@linaro.org, armbru@redhat.com,
eric.auger@redhat.com, imammedo@redhat.com,
alex.bennee@linaro.org, Dave.Martin@arm.com
Subject: Re: [PATCH v5 9/9] target/arm/kvm: host cpu: Add support for sve<N> properties
Date: Tue, 1 Oct 2019 10:59:54 -0700 [thread overview]
Message-ID: <a4f3be1b-533b-1089-6bdf-1ac3f4da4ef3@linaro.org> (raw)
In-Reply-To: <20191001125845.8793-10-drjones@redhat.com>
On 10/1/19 5:58 AM, Andrew Jones wrote:
> Allow cpu 'host' to enable SVE when it's available, unless the
> user chooses to disable it with the added 'sve=off' cpu property.
> Also give the user the ability to select vector lengths with the
> sve<N> properties. We don't adopt 'max' cpu's other sve property,
> sve-max-vq, because that property is difficult to use with KVM.
> That property assumes all vector lengths in the range from 1 up
> to and including the specified maximum length are supported, but
> there may be optional lengths not supported by the host in that
> range. With KVM one must be more specific when enabling vector
> lengths.
>
> Signed-off-by: Andrew Jones <drjones@redhat.com>
> Reviewed-by: Eric Auger <eric.auger@redhat.com>
> ---
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
r~
prev parent reply other threads:[~2019-10-01 18:03 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-01 12:58 [PATCH v5 0/9] target/arm/kvm: enable SVE in guests Andrew Jones
2019-10-01 12:58 ` [PATCH v5 1/9] target/arm/monitor: Introduce qmp_query_cpu_model_expansion Andrew Jones
2019-10-15 9:59 ` Beata Michalska
2019-10-15 10:56 ` Andrew Jones
2019-10-15 11:56 ` Beata Michalska
2019-10-16 13:24 ` Beata Michalska
2019-10-16 13:50 ` Andrew Jones
2019-10-16 15:16 ` Beata Michalska
2019-10-16 16:16 ` Andrew Jones
2019-10-21 15:07 ` Beata Michalska
2019-10-22 13:43 ` Andrew Jones
2019-10-22 15:49 ` Beata Michalska
2019-10-01 12:58 ` [PATCH v5 2/9] tests: arm: Introduce cpu feature tests Andrew Jones
2019-10-01 12:58 ` [PATCH v5 3/9] target/arm: Allow SVE to be disabled via a CPU property Andrew Jones
2019-10-01 12:58 ` [PATCH v5 4/9] target/arm/cpu64: max cpu: Introduce sve<N> properties Andrew Jones
2019-10-01 17:47 ` Richard Henderson
2019-10-07 7:22 ` Auger Eric
2019-10-07 8:35 ` Alex Bennée
2019-10-07 12:41 ` Andrew Jones
2019-10-09 14:01 ` Beata Michalska
2019-10-16 8:10 ` Andrew Jones
2019-10-01 12:58 ` [PATCH v5 5/9] target/arm/kvm64: Add kvm_arch_get/put_sve Andrew Jones
2019-10-01 13:52 ` Andrew Jones
2019-10-01 13:58 ` Andrew Jones
2019-10-01 17:52 ` Richard Henderson
2019-10-07 7:22 ` Auger Eric
2019-10-01 12:58 ` [PATCH v5 6/9] target/arm/kvm64: max cpu: Enable SVE when available Andrew Jones
2019-10-01 12:58 ` [PATCH v5 7/9] target/arm/kvm: scratch vcpu: Preserve input kvm_vcpu_init features Andrew Jones
2019-10-01 12:58 ` [PATCH v5 8/9] target/arm/cpu64: max cpu: Support sve properties with KVM Andrew Jones
2019-10-01 17:58 ` Richard Henderson
2019-10-01 12:58 ` [PATCH v5 9/9] target/arm/kvm: host cpu: Add support for sve<N> properties Andrew Jones
2019-10-01 17:59 ` Richard Henderson [this message]
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