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From: Andrew Jones <drjones@redhat.com>
To: Haibo Xu <haibo.xu@linaro.org>
Cc: peter.maydell@linaro.org, richard.henderson@linaro.org,
	qemu-devel@nongnu.org, abologna@redhat.com, qemu-arm@nongnu.org,
	philmd@redhat.com
Subject: Re: [PATCH RESEND v2 0/6] target/arm: Add nested virtualization support
Date: Tue, 27 Apr 2021 11:40:32 +0200	[thread overview]
Message-ID: <20210427094032.awefmueute7gek2d@gator.home> (raw)
In-Reply-To: <cover.1617281290.git.haibo.xu@linaro.org>

On Thu, Apr 01, 2021 at 05:55:32AM -0700, Haibo Xu wrote:
> v2:
>   - Move the NV to a CPU feature flag(Andrea&Andrew)
>   - Add CPU feature 'el2' test(Andrew)
> 
> Many thanks to Andrea and Andrew for their comments!
> 
> This series add support for ARMv8.3/8.4 nested virtualization support
> in KVM mode. It's based on Marc Zyngier's kernel KVM patches[1], and 
> has been tested on a FVP model to run a L2 guest with Qemu. Now the 
> feature can be enabled by "-M virt,accel=kvm -cpu host,el2=on" when
> starting a VM. 
> 
> [1] https://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms.git/log/?h=kvm-arm64/nv-5.12-WIP
> 
> Haibo Xu (6):
>   Update linux header with new arm64 NV macro
>   target/arm/kvm: Add helper to detect el2 when using KVM
>   target/arm/kvm: Add an option to turn on/off el2 support
>   hw/intc/arm_gicv3: Enable support for setting vGIC maintenance IRQ
>   target/arm/cpu: Enable 'el2' to work with host/max cpu
>   target/arm: Add vCPU feature 'el2' test.

Hi Haibo,

Thank you for this new feature.

Please also update docs/system/arm/cpu-features.rst in the next version of
this patch series.

Thanks,
drew



  parent reply	other threads:[~2021-04-27  9:43 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-01 12:55 [PATCH RESEND v2 0/6] target/arm: Add nested virtualization support Haibo Xu
2021-04-01 12:55 ` [PATCH RESEND v2 1/6] Update linux header with new arm64 NV macro Haibo Xu
2021-04-01 12:55 ` [PATCH RESEND v2 2/6] target/arm/kvm: Add helper to detect el2 when using KVM Haibo Xu
2021-04-27  8:27   ` Andrew Jones
2021-04-01 12:55 ` [PATCH RESEND v2 3/6] target/arm/kvm: Add an option to turn on/off el2 support Haibo Xu
2021-04-27  8:38   ` Andrew Jones
2021-04-27  9:29   ` Peter Maydell
2021-04-01 12:55 ` [PATCH RESEND v2 4/6] hw/intc/arm_gicv3: Enable support for setting vGIC maintenance IRQ Haibo Xu
2021-04-27  8:55   ` Andrew Jones
2021-04-01 12:55 ` [PATCH RESEND v2 5/6] target/arm/cpu: Enable 'el2' to work with host/max cpu Haibo Xu
2021-04-27  9:24   ` Andrew Jones
2021-04-27  9:38     ` Peter Maydell
2021-04-27  9:49       ` Andrew Jones
2021-04-27 12:04         ` Peter Maydell
2021-04-01 12:55 ` [PATCH RESEND v2 6/6] target/arm: Add vCPU feature 'el2' test Haibo Xu
2021-04-27  9:37   ` Andrew Jones
2021-04-01 17:53 ` [PATCH RESEND v2 0/6] target/arm: Add nested virtualization support Andrea Bolognani
2021-04-27  9:40 ` Andrew Jones [this message]
2021-04-27  9:42 ` Peter Maydell
2021-04-27  9:54   ` Andrew Jones
2021-04-27 12:15     ` Peter Maydell
2021-04-27 14:48       ` Andrew Jones
2021-04-27 14:58         ` Peter Maydell
2021-04-27 15:01           ` Peter Maydell
2021-04-27 16:17             ` Andrew Jones

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