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AVB only uses CONFIG_FASTBOOT_BUF_ADDR from fastboot for memory.
This memory is used for assigning temporary buffers.
This can be assigned a new variable and used as CONFIG_AVB_BUF_ADDR.
This is to support future boards that support AVB but dont support
USB and therefore dont support FASTBOOT.
Signed-off-by: Usama Arif <usama.arif@arm.com>
Cc: Igor Opaniuk <igor.opaniuk@gmail.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Acked-by: Igor Opaniuk <igor.opaniuk@gmail.com>
[trini: Change defaults]
Signed-off-by: Tom Rini <trini@konsulko.com>
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We should not be using typedefs and these make it harder to use
forward declarations (to reduce header file inclusions). Drop the typedef.
Signed-off-by: Simon Glass <sjg@chromium.org>
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Change get_sector_buf() to use map_sysmem() to get a pointer to the
CONFIG_FASTBOOT_BUF_ADDR in memory.
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
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With CONFIG_OPTEE_TA_AVB use the trusted application AVB provided by
OP-TEE to manage rollback indexes and device-lock status.
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
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1. Add initial support of boot states mode (red, green, yellow)
2. Add functions for enforcing dm-verity configurations
Signed-off-by: Igor Opaniuk <igor.opaniuk@linaro.org>
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Implement AVB ops on top of existing mmc subsystem API. Currently there
is a full implementation of such operations, defined by [1]
AVB2.0 specification:
.read_from_partition() - reads N bytes from a partition identified by
a name.
.write_to_partition() - Writes N bytes to a partition identified by a name.
.validate_vbmeta_public_key() - checks if the given public ‘vbmeta’
partition is trusted.
.get_unique_guid_for_partition() - Gets the GUID for a partition identified
by a string name.
As [1] specification recommends to use tamper-evident storage for storing
rollback indexes and device state (LOCKED/UNLOCKED),
currently are only stubs instead of full implementation for these ops:
.read_rollback_index() - Gets the rollback index for a given index location
.write_rollback_index() - Sets the rollback index to a given location
.read_is_device_unlocked() - Gets where the device is unlocked
[1] https://android.googlesource.com/platform/external/avb/+/master/README.md
Signed-off-by: Igor Opaniuk <igor.opaniuk@linaro.org>
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