[PATCH 1/1] configs: KASLR OPTEE RNG support for K3 devices

[Tom Rini]

On Mon, Jun 30, 2025 at 10:50:09AM +0530, Gokul Praveen wrote:
> Hi Manorit,
> 
> On 27/06/25 15:52, Manorit Chawdhry wrote:
> > Hi Gokul,
> > 
> > On 14:52-20250627, Gokul wrote:
> > > From: Gokul Praveen <g-praveen at ti.com>
> > > 
> > > Add KASLR OPTEE RNG support across K3 devices by enabling the required
> > > configs.
> > > 
> > > Signed-off-by: Gokul Praveen <g-praveen at ti.com>
> > > ---
> > >   arch/arm/Kconfig | 3 +++
> > >   1 file changed, 3 insertions(+)
> > > 
> > > diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
> > > index 7282c4123b0..cd27e5a5422 100644
> > > --- a/arch/arm/Kconfig
> > > +++ b/arch/arm/Kconfig
> > > @@ -805,6 +805,9 @@ config ARCH_K3
> > >   	select REGEX
> > >   	select FIT_SIGNATURE if ARM64
> > >   	imply TI_SECURE_DEVICE
> > > +	imply DM_RNG
> > > +	imply TEE
> > > +	imply OPTEE
> > 
> > Does it get enabled for R5 based defconfigs too in .config? ARCH_K3 is
> > enabled for both R5 and ARM64 cores so wondering if we are ending up
> > enabling it for R5 too which might not be required ( or is it? )
> > 
> > Regards,
> > Manorit
> > 
> No,it does not get enabled for R5 actually.

That's not what the size growth on R5 platforms I see reflects:
               u-boot: add: 11/-2, grow: 8/-2 bytes: 1584/-692 (892)
                 function                                   old     new   delta
                 try_load_entry                               -     596    +596
                 static.fdt_kaslrseed                         -     200    +200
                 handle_random_req                            -     180    +180
                 getrng                                       -     120    +120
                 rng_getinfo                                  -      80     +80
                 _u_boot_list_2_uclass_driver_2_rng           -      72     +72
                 efi_init_obj_list                         2304    2368     +64
                 static.uclass_get_device                     -      56     +56
                 label_boot                                1316    1372     +56
                 _rproc_name_is_unique                        -      52     +52
                 gen_rand_uuid_str                          108     144     +36
                 efi_guid_rng_protocol                        -      16     +16
                 dm_rng_read                                  -      16     +16
                 static.env_do_env_set                      272     280      +8
                 fdt_chosen                                 172     180      +8
                 efi_rng_protocol                             -       8      +8
                 cli_readline_into_buffer                  1716    1724      +8
                 parse_pxefile_top                          928     932      +4
                 bootflow_scan_next                         272     276      +4
                 vbe_req_aslr_rand                            8       4      -4
                 serial_init                                316     276     -40
                 static._rproc_name_is_unique                52       -     -52
                 static.try_load_entry                      596       -    -596

-- 
Tom
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 659 bytes
Desc: not available
URL: <https://lists.denx.de/pipermail/u-boot/attachments/20250708/7054a51f/attachment.sig>