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Re: [Qemu-devel] [PATCH v7 0/4] target-arm: ARM64: Adding EL1 AARCH32 gu
From: |
Edgar E. Iglesias |
Subject: |
Re: [Qemu-devel] [PATCH v7 0/4] target-arm: ARM64: Adding EL1 AARCH32 guest support |
Date: |
Thu, 12 Feb 2015 19:10:51 +1000 |
User-agent: |
Mutt/1.5.21 (2010-09-15) |
On Thu, Feb 12, 2015 at 02:49:06PM +0800, Greg Bellows wrote:
> Added support for running an AArch32 guest on a AArch64 KVM host. Support has
> only been added to the QEMU machvirt machine. The addition of CPU properties
> specifiable from the command line were added to allow disablement of AArch64
> execution state hereby forcing EL1 to be AArch32. The new CPU command line
> property is "aarch64=on/off" that is specified as follows:
>
> aarch64-softmmu/qemu-system-aarch64 -M virt -cpu cortex-a57,aarch64=off
> ...
Thanks for working on this Greg!
Reviewed-by: Edgar E. Iglesias <address@hidden>
on the whole series.
Cheers,
Edgar
>
> ---
>
> v6 -> v7
> - Fix comment issues
>
> v5 -> v6
> - Reorder conditionals in 64_to_32 for readability.
>
> v3 -> v4
> - Move and fix sync functions to properly handle current EL/PL
> - Replace use of strtok
> - Add disablement of aarch64 option if KVM disabled
> - Revert and update AArch64 check on vcpu init to not check for AARch64
> feature
> but rather AArch64 family type.
> - Relocate register sync on get
> - add missing env->aarch64 refresh after pstate fetch
>
> v2 -> v3
> - Fix KVM64/AArch64 hang by conditionalizing register sync
> - Conditionalize 64-bit interrupt handler setting of aarch64
>
> v1 -> v2
> - Replaced custom property parsing with use of generic CPU property parser
> - Added CPU property registration
> - Fixed mulitple property handling in virt.c
> - Removed unnecessary kernel load changes
>
> Greg Bellows (4):
> target-arm: Add CPU property to disable AArch64
> target-arm: Add feature parsing to virt
> target-arm: Add 32/64-bit register sync
> target-arm: Add AArch32 guest support to KVM64
>
> hw/arm/virt.c | 20 ++++-
> target-arm/cpu.c | 5 +-
> target-arm/cpu.h | 2 +
> target-arm/cpu64.c | 39 +++++++++
> target-arm/helper-a64.c | 5 +-
> target-arm/helper.c | 211
> ++++++++++++++++++++++++++++++++++++++++++++++++
> target-arm/kvm64.c | 36 ++++++++-
> target-arm/op_helper.c | 6 +-
> 8 files changed, 309 insertions(+), 15 deletions(-)
>
> --
> 1.8.3.2
>