[PATCH v2] KVM: arm: reserve bit in KVM_REG_ARM encoding for secure/nonsecure

[Marc Zyngier]

On 15/03/18 17:57, Peter Maydell wrote:
> On 6 March 2018 at 19:47, Peter Maydell <peter.maydell at linaro.org> wrote:
>> We have a KVM_REG_ARM encoding that we use to expose KVM guest registers
>> to userspace. Define that bit 28 in this encoding indicates secure vs
>> nonsecure, so we can distinguish the secure and nonsecure banked versions
>> of a banked AArch32 register.
>>
>> For KVM currently, all guest registers are nonsecure, but defining
>> the bit is useful for userspace. In particular, QEMU uses this
>> encoding as part of its on-the-wire migration format, and needs to be
>> able to describe secure-bank registers when it is migrating (fully
>> emulated) EL3-enabled CPUs.
>>
>> Signed-off-by: Peter Maydell <peter.maydell at linaro.org>
>> ---
>> v1->v2: expanded comment
> 
> Ping -- is this version OK, Marc?

Sorry, I thought I had replied.

Yup, this looks good to me. I start building the patch queue tomorrow,
and this will likely be the first patch.

Thanks,

	M.
-- 
Jazz is not dead. It just smells funny...