[PATCH v2 5/5] KVM: arm64: Disable privileged hypercalls after pKVM finalisation

Marc Zyngier maz at kernel.org
Fri Oct 8 00:31:11 PDT 2021


On 2021-10-08 08:27, Will Deacon wrote:
> On Thu, Oct 07, 2021 at 01:56:47PM +0100, Marc Zyngier wrote:
>> On Tue, 05 Oct 2021 12:37:21 +0100,
>> Will Deacon <will at kernel.org> wrote:
>> >
>> This is no helping with the above, but can we *please* try to get rid
>> of this #define insanity before moving things around? I came up with
>> the following, which seems to build.
>> 
>> Thoughts?
>> 
>> 	M.
>> 
>> From 8a50c98489220d2ebaf02d4ffdbef3cf0d6634ee Mon Sep 17 00:00:00 2001
>> From: Marc Zyngier <maz at kernel.org>
>> Date: Thu, 7 Oct 2021 13:18:29 +0100
>> Subject: [PATCH] KVM: arm64: Turn __KVM_HOST_SMCCC_FUNC_* into an enum
>>  (mostly)
>> 
>> __KVM_HOST_SMCCC_FUNC_* is a royal pain, as there is a fair amount
>> of churn around these #defines, and we avoid making it an enum
>> only for the sake of the early init, low level code that requires
>> __KVM_HOST_SMCCC_FUNC___kvm_hyp_init to be usable from assembly.
>> 
>> Let's be brave and turn everything but this symbol into an enum,
>> using a bit of arithmetic to avoid any overlap.
>> 
>> Signed-off-by: Marc Zyngier <maz at kernel.org>
>> ---
>>  arch/arm64/include/asm/kvm_asm.h | 44 
>> +++++++++++++++++---------------
>>  1 file changed, 24 insertions(+), 20 deletions(-)
> 
> Looks fine to me:
> 
> Acked-by: Will Deacon <will at kernel.org>
> 
> Do you need me to respin my series on top of this?

If you don't mind, that'd make my life easier.

Thanks,

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



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