Re: [Qemu-devel] [PATCH 0/5] target-arm: ARM64: Adding EL1 AARCH32 guest support

[Sergey Fedorov]

On 20.01.2015 01:30, 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
propoerty is "-aarch64" that is specified as follows:

    aarch64-softmmu/qemu-system-aarch64 -M virt -cpu cortex-a57,-aarch64 ...

Hi!

It seems a little confusing for me to specify '-aarch64' when forcing AArch32 execution state. Why don't just specify 'aarch32' in command line instead of '-aarch64' construction?

BTW, /propoerty/property/

Best regards,
Serge

Support also added to support uncompressed images (Image) for aarch32.

Greg Bellows (5):
  target-arm: Add ARM CPU feature parsing
  target-arm: Add feature parsing to virt
  target-arm: Add 32/64-bit register sync
  target-arm: Add AArch32 guest support to KVM64
  target-arm: Adjust kernel load address for Image

 hw/arm/boot.c           | 33 +++++++++++++++++-
 hw/arm/virt.c           | 21 ++++++++++--
 target-arm/cpu.c        | 45 ++++++++++++++++++++++++-
 target-arm/helper-a64.c |  5 +--
 target-arm/internals.h  | 89 +++++++++++++++++++++++++++++++++++++++++++++++++
 target-arm/kvm64.c      | 21 +++++++++---
 target-arm/op_helper.c  |  6 ++--
 7 files changed, 204 insertions(+), 16 deletions(-)