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From: Haibo Xu <haibo.xu@linaro.org>
To: qemu-devel@nongnu.org, qemu-arm@nongnu.org
Cc: peter.maydell@linaro.org, drjones@redhat.com,
	richard.henderson@linaro.org, abologna@redhat.com,
	Haibo Xu <haibo.xu@linaro.org>,
	philmd@redhat.com
Subject: [PATCH RESEND v2 0/6] target/arm: Add nested virtualization support
Date: Thu,  1 Apr 2021 12:55:32 +0000	[thread overview]
Message-ID: <cover.1617281290.git.haibo.xu@linaro.org> (raw)

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.

 hw/arm/virt.c                      | 19 ++++++++---
 hw/intc/arm_gicv3_common.c         |  1 +
 hw/intc/arm_gicv3_kvm.c            | 16 +++++++++
 include/hw/intc/arm_gicv3_common.h |  1 +
 linux-headers/asm-arm64/kvm.h      |  2 ++
 linux-headers/linux/kvm.h          |  1 +
 target/arm/cpu.c                   | 14 +++++++-
 target/arm/cpu.h                   |  4 +++
 target/arm/cpu64.c                 | 53 ++++++++++++++++++++++++++++++
 target/arm/kvm64.c                 | 15 +++++++++
 target/arm/kvm_arm.h               | 13 ++++++++
 target/arm/monitor.c               |  2 +-
 tests/qtest/arm-cpu-features.c     |  9 +++++
 13 files changed, 144 insertions(+), 6 deletions(-)

-- 
2.17.1



             reply	other threads:[~2021-04-01 12:57 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-01 12:55 Haibo Xu [this message]
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
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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