Re: [PATCH v12 05/13] x86/sgx: architectural structures

From: Thomas Gleixner
Date: Tue Jul 03 2018 - 15:04:14 EST


On Tue, 3 Jul 2018, Jarkko Sakkinen wrote:

> This commit adds arch/x86/include/asm/sgx_arch.h that contains definitions

This is not a commit. Simply: Add .....

> for data structures used by the SGX.
>
> Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@xxxxxxxxxxxxxxx>
> Co-developed-by: Suresh Siddha <suresh.b.siddha@xxxxxxxxx>

Documentaiton:

A Co-Developed-by: states that the patch was also created by another developer
along with the original author. This is useful at times when multiple people
work on a single patch. Note, this person also needs to have a Signed-off-by:
line in the patch as well.

Please fix all over the place.

> +
> +#define SGX_MISC_RESERVED_MASK 0xFFFFFFFFFFFFFFFEL

L ? ULL I'd say...

> +#define SGX_ATTR_RESERVED_MASK 0xFFFFFFFFFFFFFFC9L

Ditto

> +#define SGX_SECS_RESERVED1_SIZE 24
> +#define SGX_SECS_RESERVED2_SIZE 32
> +#define SGX_SECS_RESERVED3_SIZE 96
> +#define SGX_SECS_RESERVED4_SIZE 3836
> +
> +struct sgx_secs {
> + uint64_t size;
> + uint64_t base;
> + uint32_t ssaframesize;
> + uint32_t miscselect;
> + uint8_t reserved1[SGX_SECS_RESERVED1_SIZE];
> + uint64_t attributes;

Please make these tabular aligned for readility sake

> + uint32_t miscselect;
> + uint8_t reserved1[SGX_SECS_RESERVED1_SIZE];
> + uint64_t attributes;

Hmm? All over the place...

> +enum sgx_tcs_flags {
> + SGX_TCS_DBGOPTIN = 0x01, /* cleared on EADD */

Please do not use tail comments. Either put the comment above the define or
use kernel doc.

> +};
> +
> +#define SGX_TCS_RESERVED_MASK 0xFFFFFFFFFFFFFFFEL

See above.

> +#define SGX_SECINFO_PERMISSION_MASK 0x0000000000000007L
> +#define SGX_SECINFO_PAGE_TYPE_MASK 0x000000000000FF00L
> +#define SGX_SECINFO_RESERVED_MASK 0xFFFFFFFFFFFF00F8L

Ditto

Thanks,

tglx