Re: [PATCH v2 7/7] KVM: selftests: Add test for RAZ/WI AArch32 ID registers

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Hi Drew,

On Mon, Sep 05, 2022 at 09:31:40AM +0200, Andrew Jones wrote:

[...]

> > +static uint64_t reg_ids[] = {
> > +	KVM_ARM64_SYS_REG(SYS_ID_PFR0_EL1),
> > +	KVM_ARM64_SYS_REG(SYS_ID_PFR1_EL1),
> > +	KVM_ARM64_SYS_REG(SYS_ID_DFR0_EL1),
> > +	KVM_ARM64_SYS_REG(SYS_ID_MMFR0_EL1),
> > +	KVM_ARM64_SYS_REG(SYS_ID_MMFR1_EL1),
> > +	KVM_ARM64_SYS_REG(SYS_ID_MMFR2_EL1),
> > +	KVM_ARM64_SYS_REG(SYS_ID_MMFR3_EL1),
> > +	KVM_ARM64_SYS_REG(SYS_ID_ISAR0_EL1),
> > +	KVM_ARM64_SYS_REG(SYS_ID_ISAR1_EL1),
> > +	KVM_ARM64_SYS_REG(SYS_ID_ISAR2_EL1),
> > +	KVM_ARM64_SYS_REG(SYS_ID_ISAR3_EL1),
> > +	KVM_ARM64_SYS_REG(SYS_ID_ISAR4_EL1),
> > +	KVM_ARM64_SYS_REG(SYS_ID_ISAR5_EL1),
> > +	KVM_ARM64_SYS_REG(SYS_ID_MMFR4_EL1),
> > +	KVM_ARM64_SYS_REG(SYS_ID_ISAR6_EL1),
> > +	KVM_ARM64_SYS_REG(SYS_MVFR0_EL1),
> > +	KVM_ARM64_SYS_REG(SYS_MVFR1_EL1),
> > +	KVM_ARM64_SYS_REG(SYS_MVFR2_EL1),
> > +	KVM_ARM64_SYS_REG(SYS_ID_PFR2_EL1),
> > +	KVM_ARM64_SYS_REG(SYS_ID_MMFR5_EL1),
> 
> Hi Oliver,
> 
> I see all the hidden and unallocated registers have been filtered out of
> the test lists. They should also behave as RAZ, right? Maybe we should
> keep them in the lists here for consistency and to test them as well.

Sure, can do. The reason I only tested these registers is because they
have RAZ/WI behavior with this series, whereas the rest are RAZ +
invariant. Should be easy enough to cover the whole range, though.

--
Thanks,
Oliver
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