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https://github.com/brain-hackers/u-boot-brain
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warp7: Add support for automated secure boot.scr verification
This patch adds support for verifying a signed boot.scr. With this in place it's possible for run-time Linux to update boot.scr to set different variables such as switching between different boot partitions, pointing to different kernels etc and for u-boot to verify these changes via the HAB prior to executing the commands contained in boot.scr. Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org> Tested-by: Breno Lima <breno.lima@nxp.com> Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
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@ -53,6 +53,14 @@
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"root=PARTUUID=${uuid} rootwait rw\0" \
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"ivt_offset=" __stringify(BOOTROM_IVT_HDR_OFFSET)"\0"\
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"warp7_auth_or_fail=hab_auth_img_or_fail ${hab_ivt_addr} ${filesize} 0;\0" \
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"do_bootscript_hab=" \
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"if test ${hab_enabled} -eq 1; then " \
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"setexpr hab_ivt_addr ${loadaddr} - ${ivt_offset}; " \
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"setenv script ${script_signed}; " \
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"load mmc ${mmcdev}:${mmcpart} ${hab_ivt_addr} ${script}; " \
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"run warp7_auth_or_fail; " \
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"run bootscript; "\
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"fi;\0" \
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"loadbootscript=" \
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"load mmc ${mmcdev}:${mmcpart} ${loadaddr} ${script};\0" \
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"bootscript=echo Running bootscript from mmc ...; " \
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@ -79,6 +87,7 @@
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#define CONFIG_BOOTCOMMAND \
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"mmc dev ${mmcdev};" \
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"mmc dev ${mmcdev}; if mmc rescan; then " \
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"run do_bootscript_hab;" \
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"if run loadbootscript; then " \
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"run bootscript; " \
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"else " \
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