core: fine grained tee_ta_mutex locking

Changes TA loading and session initialization to use fine grained locking
based on the tee_ta_mutex.

This avoids a potential dead lock with PGT cache where w

core: fine grained tee_ta_mutex locking

Changes TA loading and session initialization to use fine grained locking
based on the tee_ta_mutex.

This avoids a potential dead lock with PGT cache where we're waiting for
new page tables with tee_ta_mutex locked, which prevents
tee_ta_close_session() to indirectly return any page tables.

This change also removes the last really big critical section. With this
TAs can be loaded in parallel.

Reported-by: Zhizhou Zhang <zhizhouzhang@asrmicro.com>
Tested-by: Zhizhou Zhang <zhizhouzhang@asrmicro.com>
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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Remove 'All rights reserved' from Linaro files

The text 'All rights reserved' is useless [1]. The Free Software
Foundation's REUSE Initiative best practices document [2] does not
contain these words

Remove 'All rights reserved' from Linaro files

The text 'All rights reserved' is useless [1]. The Free Software
Foundation's REUSE Initiative best practices document [2] does not
contain these words. Therefore, we can safely remove the text from the
files that are owned by Linaro.

Generated by:
spdxify.py --linaro-only --strip-arr optee_os/

Link: [1] https://en.wikipedia.org/wiki/All_rights_reserved
Link: [2] https://reuse.software/practices/
Link: [3] https://github.com/jforissier/misc/blob/f7b56c8/spdxify.py
Signed-off-by: Jerome Forissier <jerome.forissier@linaro.org>
Acked-by: Joakim Bech <joakim.bech@linaro.org>

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Remove license notice from Linaro files

Now that we have added SPDX identifiers, we can safely remove the
verbose license text from the files that are owned by Linaro.

Generated by [1]:
spdxify.p

Remove license notice from Linaro files

Now that we have added SPDX identifiers, we can safely remove the
verbose license text from the files that are owned by Linaro.

Generated by [1]:
spdxify.py --linaro-only --strip-license-text optee_os/

Link: [1] https://github.com/jforissier/misc/blob/f7b56c8/spdxify.py
Signed-off-by: Jerome Forissier <jerome.forissier@linaro.org>
Acked-by: Joakim Bech <joakim.bech@linaro.org>

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Add SPDX license identifiers

Adds one SPDX-License-Identifier line [1] to each source files that
contains license text.

Generated by [2]:
spdxify.py --add-spdx optee_os/

The scancode tool [3] wa

Add SPDX license identifiers

Adds one SPDX-License-Identifier line [1] to each source files that
contains license text.

Generated by [2]:
spdxify.py --add-spdx optee_os/

The scancode tool [3] was used to double check the license matching
code in the Python script. All the licenses detected by scancode are
either detected by spdxify.py, or have no SPDX identifier, or are false
matches.

Link: [1] https://spdx.org/licenses/
Link: [2] https://github.com/jforissier/misc/blob/f7b56c8/spdxify.py
Link: [3] https://github.com/nexB/scancode-toolkit
Signed-off-by: Jerome Forissier <jerome.forissier@linaro.org>
Acked-by: Joakim Bech <joakim.bech@linaro.org>

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Reformat copyright/license header in files with an SPDX ID

Some files were committed with an SPDX license identifier before the
rules were defined [1]. Reformat them accordingly.

[1] documentation/

Reformat copyright/license header in files with an SPDX ID

Some files were committed with an SPDX license identifier before the
rules were defined [1]. Reformat them accordingly.

[1] documentation/copyright_and_license_headers.rst

Signed-off-by: Jerome Forissier <jerome.forissier@linaro.org>
Acked-by: Joakim Bech <joakim.bech@linaro.org>

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core: add refcount routines

Adds refcount_inc() and refcount_dec()

Reviewed-by: Volodymyr Babchuk <vlad.babchuk@gmail.com>
Reviewed-by: Jerome Forissier <jerome.forissier@linaro.org>
Signed-off-by:

core: add refcount routines

Adds refcount_inc() and refcount_dec()

Reviewed-by: Volodymyr Babchuk <vlad.babchuk@gmail.com>
Reviewed-by: Jerome Forissier <jerome.forissier@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>

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core: asan: provide asan_memcpy_unchecked()

Provides asan_memcpy_unchecked() which does a memcpy() that isn't
checked against the tagging in the ASAN shadow area. If ASAN isn't
enabled it's replaced

core: asan: provide asan_memcpy_unchecked()

Provides asan_memcpy_unchecked() which does a memcpy() that isn't
checked against the tagging in the ASAN shadow area. If ASAN isn't
enabled it's replaced by a direct call to memcpy().

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

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core: enable non-contiguous temporary reference parameters

Now, when we can pass list of pages between REE and TEE it is possible
to use temporary memory references that are not located in a preallo

core: enable non-contiguous temporary reference parameters

Now, when we can pass list of pages between REE and TEE it is possible
to use temporary memory references that are not located in a preallocated
shared memory area. By employing OPTEE_MSG_ATTR_NONCONTIG parameter
attribute, REE can provide own buffer as a temporary memory reference.

Actually, such parameters are indistinguishable from registered shared
memory references. So, when OP-TEE spots temporary memory reference with
OPTEE_MSG_ATTR_NONCONTIG attribute, it will create `mobj_reg_shm` for it.
After call was handled, it will free that mobj.

Signed-off-by: Volodymyr Babchuk <vlad.babchuk@gmail.com>
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>
Tested-by: Jerome Forissier <jerome.forissier@linaro.org> (HiKey)
Tested-by: Jens Wiklander <jens.wiklander@linaro.org> (FVP, QEMU v7/v8)
Tested-by: Jens Wiklander <jens.wiklander@linaro.org> (Juno with and without pager)
Tested-by: Volodymyr Babchuk <vlad.babchuk@gmail.com> (Rcar M3)

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core: dt: introduce dt_have_prop

Introudce dt_have_prop

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>

core: dt: typo fix

1. According to ePAPR spec, status should be okay/disabled/fail/fail-sss.
To Linux device tree, "okay" and "ok" are both used. Function is_okay
also use "okay" and "ok". But

core: dt: typo fix

1. According to ePAPR spec, status should be okay/disabled/fail/fail-sss.
To Linux device tree, "okay" and "ok" are both used. Function is_okay
also use "okay" and "ok". But "ok" is not defined in spec. Here only
correct comments

2. size -> sz

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>

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core: asan: provide asan_memset_unchecked()

Provides asan_memset_unchecked() which does a memset that isn't checked
against the tagging in the ASAN shadow area. If ASAN isn't enabled it's
replaced b

core: asan: provide asan_memset_unchecked()

Provides asan_memset_unchecked() which does a memset that isn't checked
against the tagging in the ASAN shadow area. If ASAN isn't enabled it's
replaced by a direct call to memset().

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

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ABI change: add OPTEE_MSG_ATTR_NONCONTIG handling

This patch introduces new attribute OPTEE_MSG_ATTR_NONCONTIG to allow
Normal World pass arbitrary list of physical pages as a shared buffer.

To rea

ABI change: add OPTEE_MSG_ATTR_NONCONTIG handling

This patch introduces new attribute OPTEE_MSG_ATTR_NONCONTIG to allow
Normal World pass arbitrary list of physical pages as a shared buffer.

To read this list of page address two new functions are added:
- msg_param_extract_pages() is a helper function that read pages list
into provided array

- msg_param_mobj_from_noncontig_param() constructs mobj from provided
struct optee_msg_param parameter. This mobj then can be used in
various parts of OP-TEE

Signed-off-by: Volodymyr Babchuk <vlad.babchuk@gmail.com>
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>
Reviewed-by: Etienne Carriere <etienne.carriere@linaro.org>

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msg_param.h: add `const` qualifier for read-only functions

msg_param_get_buf_size() and msg_param_attr_is_tmem() only read
from their parameter, so that parameter can be declared as `const`

Signed

msg_param.h: add `const` qualifier for read-only functions

msg_param_get_buf_size() and msg_param_attr_is_tmem() only read
from their parameter, so that parameter can be declared as `const`

Signed-off-by: Volodymyr Babchuk <vlad.babchuk@gmail.com>
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>

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msg_param: add msg_param.c with helper functions

This patch adds various helper functions to manipulate with parameters
passed to/from normal world.

Also it introduces new optee_param type which is

msg_param: add msg_param.c with helper functions

This patch adds various helper functions to manipulate with parameters
passed to/from normal world.

Also it introduces new optee_param type which is used to pass long
lists of parameters.

Signed-off-by: Volodymyr Babchuk <vlad.babchuk@gmail.com>
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>
Reviewed-by: Etienne Carriere <etienne.carriere@linaro.org>
Tested-by: Jens Wiklander <jens.wiklander@linaro.org> (Hikey)

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core: add linker.h for link script symbols

Moves all core extern declarations of linker script symbols into
<kernel/linker.h>.

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

core: add linker.h for link script symbols

Moves all core extern declarations of linker script symbols into
<kernel/linker.h>.

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

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dt: Add dt_map_dev()

Maps a device into memory from its FDT node.

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

dt: Add dt_map_dev()

Maps a device into memory from its FDT node.

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

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dt: Add FDT manipulation functions

Signed-off-by: Jerome Forissier <jerome.forissier@linaro.org>
Reviewed-by: Etienne Carriere <etienne.carriere@linaro.org>
Reviewed-by: Jens Wiklander <jens.wikland

dt: Add FDT manipulation functions

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

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core: introduce struct dt_driver

When CFG_DT=y, a linker section is created (.rodata.dtdrv) to hold all
the DT-compatible drivers. The table can later be queried at runtime.
Some manipulation functi

core: introduce struct dt_driver

When CFG_DT=y, a linker section is created (.rodata.dtdrv) to hold all
the DT-compatible drivers. The table can later be queried at runtime.
Some manipulation functions are exported in <kernel/dt.h>.

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

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otp: convert to use weak default

There is no longer any point in having CFG_OTP_SUPPORT.

It's always supported either by the weak implementation
or any platform override.

Since there exists a plat

otp: convert to use weak default

There is no longer any point in having CFG_OTP_SUPPORT.

It's always supported either by the weak implementation
or any platform override.

Since there exists a platform 'sunxi' that does not have
CFG_GENERIC_BOOT and doesn't build generic_boot.c, this
is plaved in a new file 'otp_stubs.c'. Since this is
just copied Linaro code at this point, keep Linaro
copyright message on the new file.

Signed-off-by: Andy Green <andy@warmcat.com>
Reviewed-by: Jerome Forissier <jerome.forissier@linaro.org>

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core: Add tee_time_busy_wait()

Signed-off-by: Victor Chong <victor.chong@linaro.org>
Reviewed-by: Jerome Forissier <jerome.forissier@linaro.org>
Reviewed-by: Etienne Carriere <etienne.carriere@linar

core: Add tee_time_busy_wait()

Signed-off-by: Victor Chong <victor.chong@linaro.org>
Reviewed-by: Jerome Forissier <jerome.forissier@linaro.org>
Reviewed-by: Etienne Carriere <etienne.carriere@linaro.org>
[jf: rebase on top of master]
Signed-off-by: Jerome Forissier <jerome.forissier@linaro.org>

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core: add pseudo TA for socket

Adds a pseudo TA sockets using tee-supplicant.

Reviewed-by: Etienne Carriere <etienne.carriere@linaro.org>
Tested-by: Etienne Carriere <etienne.carriere@linaro.org> (

core: add pseudo TA for socket

Adds a pseudo TA sockets using tee-supplicant.

Reviewed-by: Etienne Carriere <etienne.carriere@linaro.org>
Tested-by: Etienne Carriere <etienne.carriere@linaro.org> (b2260 pager=y/n)
Reviewed-by: Jerome Forissier <jerome.forissier@linaro.org>
Tested-by: Jerome Forissier <jerome.forissier@linaro.org> (HiKey)
Tested-by: Etienne Carriere <etienne.carriere@linaro.org> (b2260)
Tested-by: Jens Wiklander <jens.wiklander@linaro.org> (QEMU)
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>

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rename 'static TA' into 'pseudo TA'

This renaming prevents confusion of what is a static TA: static
TAs are NOT Trusted Application operating at OP-TEE core privilege
execution level. There are rath

rename 'static TA' into 'pseudo TA'

This renaming prevents confusion of what is a static TA: static
TAs are NOT Trusted Application operating at OP-TEE core privilege
execution level. There are rather OP-TEE core services that offer
an invocation API based on GP TEE specified invocation API:
open session, invoke command and close session.

This change renames all 'static TA' references into 'pseudo TA'
references.

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

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Add support for user TA profiling with gprof (-pg)

Adds the infrastructure to collect profiling information from Trusted
Applications running in user mode and instrumented with -pg.
Enable with: CFG

Add support for user TA profiling with gprof (-pg)

Adds the infrastructure to collect profiling information from Trusted
Applications running in user mode and instrumented with -pg.
Enable with: CFG_TA_GPROF_SUPPORT=y.

Profiling support in itself adds no significant performance overhead.
Instrumented applications however may run 1.3x - 2x slower, and have a
larger .bss section (+1.36 times .text size for 32-bit TAs, +1.77 times
.text size for 64-bit ones).

Signed-off-by: Jerome Forissier <jerome.forissier@linaro.org>
Tested-by: Jerome Forissier <jerome.forissier@linaro.org> (D02 64-bit)
Tested-by: Jerome Forissier <jerome.forissier@linaro.org> (QEMU 32-bit)
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>

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core: remove tee_dispatch_* functions

Prior to this patch the tee_dispatch_* functions where called when invoking
TAs from normal world.

The tee_dipatch_* functions provided little value and has no

core: remove tee_dispatch_* functions

Prior to this patch the tee_dispatch_* functions where called when invoking
TAs from normal world.

The tee_dipatch_* functions provided little value and has now been
collapsed into the architecture specific entry_std.c reducing the stack
usage.

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

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core: remove obsolete mobj_is_unsafe()

Removes obsolete mobj_is_unsafe(). As a consequence some tee_ta_manager code
can be removed too.

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

core: remove obsolete mobj_is_unsafe()

Removes obsolete mobj_is_unsafe(). As a consequence some tee_ta_manager code
can be removed too.

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

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