[PATCH v2 1/5] RISC-V: add vector crypto extension validation checks

Conor Dooley conor at kernel.org
Fri Oct 25 09:52:29 PDT 2024


On Thu, Oct 24, 2024 at 07:08:10PM -0700, Eric Biggers wrote:
> 
> On Thu, Oct 24, 2024 at 01:34:29PM +0100, Conor Dooley wrote:
> > @@ -308,12 +354,10 @@ const struct riscv_isa_ext_data riscv_isa_ext[] = {
> >  	__RISCV_ISA_EXT_DATA(d, RISCV_ISA_EXT_d),
> >  	__RISCV_ISA_EXT_DATA(q, RISCV_ISA_EXT_q),
> >  	__RISCV_ISA_EXT_SUPERSET(c, RISCV_ISA_EXT_c, riscv_c_exts),
> > -	__RISCV_ISA_EXT_SUPERSET(v, RISCV_ISA_EXT_v, riscv_v_exts),
> > +	__RISCV_ISA_EXT_SUPERSET_VALIDATE(v, RISCV_ISA_EXT_v, riscv_v_exts, riscv_ext_vector_float_validate),
> 
> This patch adds validation for not just the vector crypto extensions but also v,
> zve32f, zve32x, zve64d, zve64f, and zve64x.  I think that should be split into a
> separate patch or at least called out explicitly in the commit message.

Sure. I think I even had it like that originally and must have
waywardly squashed it. I actually checked before sending this to make
sure that I hadn't do so by accident between v1 and v2 and I had not.

> > +	__RISCV_ISA_EXT_BUNDLE_VALIDATE(zk, riscv_zk_bundled_exts, riscv_ext_vector_crypto_validate),
> > +	__RISCV_ISA_EXT_BUNDLE_VALIDATE(zkn, riscv_zkn_bundled_exts, riscv_ext_vector_crypto_validate),
> >  	__RISCV_ISA_EXT_DATA(zknd, RISCV_ISA_EXT_ZKND),
> >  	__RISCV_ISA_EXT_DATA(zkne, RISCV_ISA_EXT_ZKNE),
> >  	__RISCV_ISA_EXT_DATA(zknh, RISCV_ISA_EXT_ZKNH),
> >  	__RISCV_ISA_EXT_DATA(zkr, RISCV_ISA_EXT_ZKR),
> > -	__RISCV_ISA_EXT_BUNDLE(zks, riscv_zks_bundled_exts),
> > +	__RISCV_ISA_EXT_BUNDLE_VALIDATE(zks, riscv_zks_bundled_exts, riscv_ext_vector_crypto_validate),
> 
> zk* are the scalar crypto extensions, which don't require vector.

> Thanks for working on this!

Thanks for taking a look. I'm surprised I didn't make more mistakes tbh.
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 228 bytes
Desc: not available
URL: <http://lists.infradead.org/pipermail/linux-riscv/attachments/20241025/2676b005/attachment.sig>


More information about the linux-riscv mailing list