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Re: [Qemu-devel] [PATCH v3 12/15] target/arm/kvm64: max cpu: Enable SVE
From: |
Richard Henderson |
Subject: |
Re: [Qemu-devel] [PATCH v3 12/15] target/arm/kvm64: max cpu: Enable SVE when available |
Date: |
Fri, 2 Aug 2019 11:20:01 -0700 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.8.0 |
On 8/2/19 5:25 AM, Andrew Jones wrote:
> Enable SVE in the KVM guest when the 'max' cpu type is configured
> and KVM supports it. KVM SVE requires use of the new finalize
> vcpu ioctl, so we add that now too. For starters SVE can only be
> turned on or off, getting all vector lengths the host CPU supports
> when on. We'll add the other SVE CPU properties in later patches.
>
> Signed-off-by: Andrew Jones <address@hidden>
> ---
> target/arm/cpu64.c | 17 ++++++++++++++---
> target/arm/kvm.c | 5 +++++
> target/arm/kvm64.c | 20 +++++++++++++++++++-
> target/arm/kvm_arm.h | 27 +++++++++++++++++++++++++++
> tests/arm-cpu-features.c | 1 +
> 5 files changed, 66 insertions(+), 4 deletions(-)
Reviewed-by: Richard Henderson <address@hidden>
r~
- Re: [Qemu-devel] [PATCH v3 06/15] target/arm/cpu: Use div-round-up to determine predicate register array size, (continued)
- [Qemu-devel] [PATCH v3 07/15] target/arm: Allow SVE to be disabled via a CPU property, Andrew Jones, 2019/08/02
- [Qemu-devel] [PATCH v3 09/15] target/arm/kvm64: Fix error returns, Andrew Jones, 2019/08/02
- [Qemu-devel] [PATCH v3 10/15] target/arm/kvm64: Move the get/put of fpsimd registers out, Andrew Jones, 2019/08/02
- [Qemu-devel] [PATCH v3 08/15] target/arm/cpu64: max cpu: Introduce sve<vl-bits> properties, Andrew Jones, 2019/08/02
- [Qemu-devel] [PATCH v3 11/15] target/arm/kvm64: Add kvm_arch_get/put_sve, Andrew Jones, 2019/08/02
- [Qemu-devel] [PATCH v3 12/15] target/arm/kvm64: max cpu: Enable SVE when available, Andrew Jones, 2019/08/02
- Re: [Qemu-devel] [PATCH v3 12/15] target/arm/kvm64: max cpu: Enable SVE when available,
Richard Henderson <=
- [Qemu-devel] [PATCH v3 13/15] target/arm/kvm: scratch vcpu: Preserve input kvm_vcpu_init features, Andrew Jones, 2019/08/02
- [Qemu-devel] [PATCH v3 15/15] target/arm/kvm: host cpu: Add support for sve<vl-bits> properties, Andrew Jones, 2019/08/02
- [Qemu-devel] [PATCH v3 14/15] target/arm/cpu64: max cpu: Support sve properties with KVM, Andrew Jones, 2019/08/02
- [Qemu-devel] [PATCH] HACK: Centralize sve property checks, Richard Henderson, 2019/08/09
- Re: [Qemu-devel] [PATCH v3 00/15] target/arm/kvm: enable SVE in guests, Peter Maydell, 2019/08/15
- [Qemu-devel] [PATCH v3 00/15] target/arm/kvm: enable SVE in guests, Zhang, Lei, 2019/08/20