arm.h: add CTR_WORD_SIZE

Adds a common define for the word size used by the CTR (cache type)
register.

Reviewed-by: Jerome Forissier <jerome.forissier@linaro.org>
Signed-off-by: Jens Wiklander <jen

arm.h: add CTR_WORD_SIZE

Adds a common define for the word size used by the CTR (cache type)
register.

Reviewed-by: Jerome Forissier <jerome.forissier@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>

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core: clean kernel stack unwinding

Simplify kernel stack unwinding now that user mode unwinding is handled
by ldelf.

Reviewed-by: Jerome Forissier <jerome.forissier@linaro.org>
Signed-off-by: Jens

core: clean kernel stack unwinding

Simplify kernel stack unwinding now that user mode unwinding is handled
by ldelf.

Reviewed-by: Jerome Forissier <jerome.forissier@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>

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core: dump ftrace data with ldelf

Uses ldelf to dump ftrace data from a TA.

Reviewed-by: Sumit Garg <sumit.garg@linaro.org>
Acked-by: Jerome Forissier <jerome.forissier@linaro.org>
Tested-by: Jerom

core: dump ftrace data with ldelf

Uses ldelf to dump ftrace data from a TA.

Reviewed-by: Sumit Garg <sumit.garg@linaro.org>
Acked-by: Jerome Forissier <jerome.forissier@linaro.org>
Tested-by: Jerome Forissier <jerome.forissier@linaro.org> (HiKey960)
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>

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core: pta_system: support memory remap

Adds PTA_SYSTEM_REMAP to support changing virtual address of an already
established mapping in a TA.

Reviewed-by: Jerome Forissier <jerome.forissier@linaro.or

core: pta_system: support memory remap

Adds PTA_SYSTEM_REMAP to support changing virtual address of an already
established mapping in a TA.

Reviewed-by: Jerome Forissier <jerome.forissier@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>

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core: add user_ta_remap()

Adds user_ta_remap() to allow changing virtual address of an already
established mapping.

Reviewed-by: Jerome Forissier <jerome.forissier@linaro.org>
Signed-off-by: Jens W

core: add user_ta_remap()

Adds user_ta_remap() to allow changing virtual address of an already
established mapping.

Reviewed-by: Jerome Forissier <jerome.forissier@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>

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core: dump user TA memory map and call stack with ldelf

Enters special ldelf dump function to dump user TA memory map.

scripts/symbolize.py patch by Jerome Forissier

Reviewed-by: Jerome Forissier

core: dump user TA memory map and call stack with ldelf

Enters special ldelf dump function to dump user TA memory map.

scripts/symbolize.py patch by Jerome Forissier

Reviewed-by: Jerome Forissier <jerome.forissier@linaro.org>
Signed-off-by: [symbolize.py] Jerome Forissier <jerome.forissier@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>

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core: abort: only print stack trace for core

With user mode stack traces temporarily disabled to later be handled by
ldelf in user mode there's an opportunity for cleaning up stack tracing.
Code for

core: abort: only print stack trace for core

With user mode stack traces temporarily disabled to later be handled by
ldelf in user mode there's an opportunity for cleaning up stack tracing.
Code for user mode stack tracing is removed only leaving what's needed
for kernel mode stack tracing.

Reviewed-by: Jerome Forissier <jerome.forissier@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>

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core: load TAs using ldelf

Uses ldelf to load and relocate TAs instead of parsing and loading the
ELFs in TEE Core. TA abort dumps, ASLR and ftrace are temporarily
removed or disabled to be re-enabl

core: load TAs using ldelf

Uses ldelf to load and relocate TAs instead of parsing and loading the
ELFs in TEE Core. TA abort dumps, ASLR and ftrace are temporarily
removed or disabled to be re-enabled in following commits.

Loading dynamically linked TAs are from now on always supported and
cannot be disabled via configuration flags. CFG_TA_DYNLINK is also
removed as a configuration option.

Reviewed-by: Jerome Forissier <jerome.forissier@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>

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core: add define TEE_MATTR_LDELF

Adds the define TEE_MATTR_LDELF for temporary mappings needed to load
the ldelf binary.

Acked-by: Jerome Forissier <jerome.forissier@linaro.org>
Signed-off-by: Jens

core: add define TEE_MATTR_LDELF

Adds the define TEE_MATTR_LDELF for temporary mappings needed to load
the ldelf binary.

Acked-by: Jerome Forissier <jerome.forissier@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>

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Move elf definition headers to common location

Moves ELF definition header to a common location for core and ldelf.

Reviewed-by: Jerome Forissier <jerome.forissier@linaro.org>
Signed-off-by: Jens W

Move elf definition headers to common location

Moves ELF definition header to a common location for core and ldelf.

Reviewed-by: Jerome Forissier <jerome.forissier@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>

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core: pta_system: add PTA_SYSTEM_SET_PROT

Adds PTA_SYSTEM_SET_PROT to support changing protection of already
established memory mappings.

Reviewed-by: Jerome Forissier <jerome.forissier@linaro.org>

core: pta_system: add PTA_SYSTEM_SET_PROT

Adds PTA_SYSTEM_SET_PROT to support changing protection of already
established memory mappings.

Reviewed-by: Jerome Forissier <jerome.forissier@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>

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core: pta_system: ta binary handling

Adds support to open, close and map a TA binary from a user TA.

Acked-by: Jerome Forissier <jerome.forissier@linaro.org>
Signed-off-by: Jens Wiklander <jens.wik

core: pta_system: ta binary handling

Adds support to open, close and map a TA binary from a user TA.

Acked-by: Jerome Forissier <jerome.forissier@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>

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core: remove tee_ta_dump_current()

tee_ta_dump_current() is only called from abort_print_current_ta(), move
the trivial implementation into abort_print_current_ta() and remove
tee_ta_dump_current().

core: remove tee_ta_dump_current()

tee_ta_dump_current() is only called from abort_print_current_ta(), move
the trivial implementation into abort_print_current_ta() and remove
tee_ta_dump_current().

Reviewed-by: Jerome Forissier <jerome.forissier@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>

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core: make mutex_trylock() work with lockdep

Instrument mutex_trylock() with lockdep_tryacquire() so that it can be
used with CFG_LOCKDEP=y.

Signed-off-by: Jerome Forissier <jerome.forissier@linaro

core: make mutex_trylock() work with lockdep

Instrument mutex_trylock() with lockdep_tryacquire() so that it can be
used with CFG_LOCKDEP=y.

Signed-off-by: Jerome Forissier <jerome.forissier@linaro.org>
Acked-by: Jens Wiklander <jens.wiklander@linaro.org>

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core: lockdep: support non-blocking acquire

Adds support for non-blocking lock semantics such as mutex_trylock().
A new function is introduced to instrument this operation:
lockdep_tryacquire(). It

core: lockdep: support non-blocking acquire

Adds support for non-blocking lock semantics such as mutex_trylock().
A new function is introduced to instrument this operation:
lockdep_tryacquire(). It should be called when it is known that
ownership of the underlying object has been granted to the caller. It
behaves similarly to lockdep_acquire() in that it does record the call
stack and records that the lock is owned. But it does not create any
dependencies to the locks that are currently owned by the caller. See
"Dynamic Lock Dependency Analysis of Concurrent Systems" [1] section
5.3.

Link: [1] http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.87.132&rep=rep1&type=pdf
Signed-off-by: Jerome Forissier <jerome.forissier@linaro.org>
Acked-by: Jens Wiklander <jens.wiklander@linaro.org>

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core: pager: fix NULL deref in tee_pager_pgt_save_and_release_entries()

Fixes a potential NULL dereference in
tee_pager_pgt_save_and_release_entries() in case a struct user_ta_ctx
doesn't have an ar

core: pager: fix NULL deref in tee_pager_pgt_save_and_release_entries()

Fixes a potential NULL dereference in
tee_pager_pgt_save_and_release_entries() in case a struct user_ta_ctx
doesn't have an areas pointer allocated yet.

Reviewed-by: Joakim Bech <joakim.bech@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>

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core: pta_system: support dynamic memory mapping

Adds PTA_SYSTEM_MAP_ZI and PTA_SYSTEM_UNMAP to dynamically map and unmap
user space memory from user space. The memory is automatically freed
when th

core: pta_system: support dynamic memory mapping

Adds PTA_SYSTEM_MAP_ZI and PTA_SYSTEM_UNMAP to dynamically map and unmap
user space memory from user space. The memory is automatically freed
when the context of the TA is freed.

Reviewed-by: Etienne Carriere <etienne.carriere@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>

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core: pta_system: set TA_FLAG_CONCURRENT

The system pseudo TA is used instead of adding new syscalls. To ensure
concurrent execution and more importantly avoid dead-lock due to
interference with the

core: pta_system: set TA_FLAG_CONCURRENT

The system pseudo TA is used instead of adding new syscalls. To ensure
concurrent execution and more importantly avoid dead-lock due to
interference with the single instance lock and for instance waiting for
page tables when adding new mappings.

Acked-by: Etienne Carriere <etienne.carriere@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>

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core: fix access flags in system_derive_ta_unique_key()

Updates the access flags used to test that the supplied TA buffer is
indeed secure.

Reviewed-by: Jerome Forissier <jerome.forissier@linaro.or

core: fix access flags in system_derive_ta_unique_key()

Updates the access flags used to test that the supplied TA buffer is
indeed secure.

Reviewed-by: Jerome Forissier <jerome.forissier@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>

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core: add user_ta_set_prot()

Adds user_ta_set_prot() which allows changing protection bits read,
write and execute as long as they don't conflict with page sharing.

Acked-by: Jerome Forissier <jero

core: add user_ta_set_prot()

Adds user_ta_set_prot() which allows changing protection bits read,
write and execute as long as they don't conflict with page sharing.

Acked-by: Jerome Forissier <jerome.forissier@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>

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core: add user_ta_map() and user_ta_unmap()

Adds user_ta_map() and user_ta_unmap() to create/remove new maps from
user space.

Acked-by: Etienne Carriere <etienne.carriere@linaro.org>
Signed-off-by:

core: add user_ta_map() and user_ta_unmap()

Adds user_ta_map() and user_ta_unmap() to create/remove new maps from
user space.

Acked-by: Etienne Carriere <etienne.carriere@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>

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core: add TEE_MATTR_SHAREABLE

Adds TEE_MATTR_SHAREABLE to tag mappings that may be shared by other TAs.

Reviewed-by: Etienne Carriere <etienne.carriere@linaro.org>
Signed-off-by: Jens Wiklander <je

core: add TEE_MATTR_SHAREABLE

Adds TEE_MATTR_SHAREABLE to tag mappings that may be shared by other TAs.

Reviewed-by: Etienne Carriere <etienne.carriere@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>

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core: user_ta: keep load segs in linked list

Keeps the load segments of an ELF in a singly linked list instead of an
array.

Reviewed-by: Etienne Carriere <etienne.carriere@linaro.org>
Signed-off-by

core: user_ta: keep load segs in linked list

Keeps the load segments of an ELF in a singly linked list instead of an
array.

Reviewed-by: Etienne Carriere <etienne.carriere@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>

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core: add vm_map_pad()

Adds vm_map_pad() which allows specifying how much free memory should be
available before and after the map.

This allows mapping the first part of for instance an ELF file wh

core: add vm_map_pad()

Adds vm_map_pad() which allows specifying how much free memory should be
available before and after the map.

This allows mapping the first part of for instance an ELF file while
knowing that the next part which has to be of a certain offset from the
first part also will succeed.

Reviewed-by: Etienne Carriere <etienne.carriere@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>

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core: vm_map changes, only on active context

For easier cache maintenance vm_set_prot() and vm_unmap() requires the
supplied context to be active.

Calls to tee_mmu_set_ctx() is added in vm_set_prot

core: vm_map changes, only on active context

For easier cache maintenance vm_set_prot() and vm_unmap() requires the
supplied context to be active.

Calls to tee_mmu_set_ctx() is added in vm_set_prot() and vm_unmap() as
needed for the changes in mappings to take effect.

Reviewed-by: Etienne Carriere <etienne.carriere@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>

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