Hi Neha,
On Fri, 6 Oct 2023 at 04:07, Neha Malcom Francis <n-fran...@ti.com> wrote:
>
> According to the TRMs of K3 platform of devices, the ROM boot image
> format specifies a "Core Options Field" that provides the capability to
> set the boot core in lockstep when set to 0 or to split mode when set
> to 2. Add support for providing the same from the binman DTS. Also
> modify existing test case for ensuring future coverage.
>
> Signed-off-by: Neha Malcom Francis <n-fran...@ti.com>
> ---
> Link to J721E TRM: https://www.ti.com/lit/zip/spruil1
> Section 4.5.4.1 Boot Info
>
> Changes in v3:
> - updated function comments
> - removed inconsistency in setting bootcore_opts to 32
>
> Changes in v2:
> - included TRM link in commit message
>
> tools/binman/btool/openssl.py | 6 ++++--
> tools/binman/entries.rst | 1 +
> tools/binman/etype/ti_secure_rom.py | 11 +++++++++--
> tools/binman/etype/x509_cert.py | 3 ++-
> tools/binman/test/297_ti_secure_rom.dts | 1 +
> 5 files changed, 17 insertions(+), 5 deletions(-)
>
> diff --git a/tools/binman/btool/openssl.py b/tools/binman/btool/openssl.py
> index aad3b61ae2..86cc56fbd7 100644
> --- a/tools/binman/btool/openssl.py
> +++ b/tools/binman/btool/openssl.py
> @@ -155,6 +155,7 @@ authInPlace = INTEGER:2
> C, ST, L, O, OU, CN and emailAddress
> cert_type (int): Certification type
> bootcore (int): Booting core
> + bootcore_opts(int): Booting core option (split/lockstep mode)
Please indicate what possible values are allowed
> load_addr (int): Load address of image
> sha (int): Hash function
>
> @@ -225,7 +226,7 @@ emailAddress =
> {req_dist_name_dict['emailAddress']}
> imagesize_sbl, hashval_sbl, load_addr_sysfw,
> imagesize_sysfw,
> hashval_sysfw, load_addr_sysfw_data, imagesize_sysfw_data,
> hashval_sysfw_data, sysfw_inner_cert_ext_boot_block,
> - dm_data_ext_boot_block):
> + dm_data_ext_boot_block, bootcore_opts):
> """Create a certificate
>
> Args:
> @@ -241,6 +242,7 @@ emailAddress =
> {req_dist_name_dict['emailAddress']}
> bootcore (int): Booting core
> load_addr (int): Load address of image
> sha (int): Hash function
> + bootcore_opts (int): Boot core option (split/lockstep mode)
>
> Returns:
> str: Tool output
> @@ -285,7 +287,7 @@ sysfw_data=SEQUENCE:sysfw_data
> [sbl]
> compType = INTEGER:1
> bootCore = INTEGER:16
> -compOpts = INTEGER:0
> +compOpts = INTEGER:{bootcore_opts}
> destAddr = FORMAT:HEX,OCT:{load_addr:08x}
> compSize = INTEGER:{imagesize_sbl}
> shaType = OID:{sha_type}
> diff --git a/tools/binman/entries.rst b/tools/binman/entries.rst
> index 801bd94674..b401f9426a 100644
> --- a/tools/binman/entries.rst
> +++ b/tools/binman/entries.rst
> @@ -1900,6 +1900,7 @@ Properties / Entry arguments:
> - core: core on which bootloader runs, valid cores are 'secure' and
> 'public'
> - content: phandle of SPL in case of legacy bootflow or phandles of
> component binaries
> in case of combined bootflow
> + - core-opts (optional): split-mode (0) or lockstep mode (1) set to 0 by
> default
Here it is 1 but below it says 2
>
> The following properties are only for generating a combined bootflow binary:
> - sysfw-inner-cert: boolean if binary contains sysfw inner certificate
> diff --git a/tools/binman/etype/ti_secure_rom.py
> b/tools/binman/etype/ti_secure_rom.py
> index 9a7ac9e9e0..17c50cefa1 100644
> --- a/tools/binman/etype/ti_secure_rom.py
> +++ b/tools/binman/etype/ti_secure_rom.py
> @@ -32,6 +32,7 @@ class Entry_ti_secure_rom(Entry_x509_cert):
> - core: core on which bootloader runs, valid cores are 'secure' and
> 'public'
> - content: phandle of SPL in case of legacy bootflow or phandles of
> component binaries
> in case of combined bootflow
> + - core-opts (optional): split-mode (0) or lockstep mode (1) set to 0
> by default
>
> The following properties are only for generating a combined bootflow
> binary:
> - sysfw-inner-cert: boolean if binary contains sysfw inner
> certificate
> @@ -69,6 +70,7 @@ class Entry_ti_secure_rom(Entry_x509_cert):
> self.sw_rev = fdt_util.GetInt(self._node, 'sw-rev', 1)
> self.sha = fdt_util.GetInt(self._node, 'sha', 512)
> self.core = fdt_util.GetString(self._node, 'core', 'secure')
> + self.bootcore_opts = fdt_util.GetInt(self._node, 'core-opts')
> self.key_fname = self.GetEntryArgsOrProps([
> EntryArg('keyfile', str)], required=True)[0]
> if self.combined:
> @@ -97,17 +99,19 @@ class Entry_ti_secure_rom(Entry_x509_cert):
> bytes content of the entry, which is the certificate binary for
> the
> provided data
> """
> + if self.bootcore_opts is None:
> + self.bootcore_opts = 0
> +
> if self.core == 'secure':
> if self.countersign:
> self.cert_type = 3
> else:
> self.cert_type = 2
> self.bootcore = 0
> - self.bootcore_opts = 32
> else:
> self.cert_type = 1
> self.bootcore = 16
> - self.bootcore_opts = 0
> +
> return super().GetCertificate(required=required, type='rom')
>
> def CombinedGetCertificate(self, required):
> @@ -126,6 +130,9 @@ class Entry_ti_secure_rom(Entry_x509_cert):
> self.num_comps = 3
> self.sha_type = SHA_OIDS[self.sha]
>
> + if self.bootcore_opts is None:
> + self.bootcore_opts = 0
> +
> # sbl
> self.content = fdt_util.GetPhandleList(self._node, 'content-sbl')
> input_data_sbl = self.GetContents(required)
> diff --git a/tools/binman/etype/x509_cert.py b/tools/binman/etype/x509_cert.py
> index d028cfe38c..fc0bb12278 100644
> --- a/tools/binman/etype/x509_cert.py
> +++ b/tools/binman/etype/x509_cert.py
> @@ -136,7 +136,8 @@ class Entry_x509_cert(Entry_collection):
> imagesize_sysfw_data=self.imagesize_sysfw_data,
> hashval_sysfw_data=self.hashval_sysfw_data,
>
> sysfw_inner_cert_ext_boot_block=self.sysfw_inner_cert_ext_boot_block,
> - dm_data_ext_boot_block=self.dm_data_ext_boot_block
> + dm_data_ext_boot_block=self.dm_data_ext_boot_block,
> + bootcore_opts=self.bootcore_opts
> )
> if stdout is not None:
> data = tools.read_file(output_fname)
> diff --git a/tools/binman/test/297_ti_secure_rom.dts
> b/tools/binman/test/297_ti_secure_rom.dts
> index d1313769f4..1a3eca9425 100644
> --- a/tools/binman/test/297_ti_secure_rom.dts
> +++ b/tools/binman/test/297_ti_secure_rom.dts
> @@ -9,6 +9,7 @@
> binman {
> ti-secure-rom {
> content = <&unsecure_binary>;
> + core-opts = <2>;
here ^
Do you think there could be a binding file in dt-bindings/ for this value?
> };
> unsecure_binary: blob-ext {
> filename = "ti_unsecure.bin";
> --
> 2.34.1
>
Regards,
Simon
