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Re: [Qemu-devel] [PATCH 0/6][RFC] AArch64 support for Versatile Express
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From: |
Peter Maydell |
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Subject: |
Re: [Qemu-devel] [PATCH 0/6][RFC] AArch64 support for Versatile Express using KVM |
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Date: |
Mon, 2 Sep 2013 11:00:15 +0100 |
On 2 September 2013 10:46, Andreas Färber <address@hidden> wrote:
> Am 28.06.2013 15:04, schrieb Andreas Färber:
>> Is there a 32-bit aarch64 register in ARMv8 to be accessed by TCG? If
>> not, the field should be in ARMCPU and a bool rather than uint32_t.
>
> Care to comment on the latter?
I don't suppose the usermode emulation touches it, but the
architectural state corresponding to that 'aarch64' field is the
PSTATE nRW bit. I don't think this bit is directly accessible via
a register access though (other PSTATE bits may be).
thanks
-- PMM