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  1. 19 Mar, 2019 1 commit
    • Antonio Nino Diaz's avatar
      xlat_tables_v2: Revert recent changes to remove recursion · f253645d
      Antonio Nino Diaz authored 
      This commit reverts the following commits:

- c54c7fc3 ("xlat_tables_v2: print xlat tables without recursion")
- db8cac2d ("xlat_tables_v2: unmap region without recursion.")
- 0ffe2692

 ("xlat_tables_v2: map region without recursion.")

This was part of PR#1843.

A problem has been detected in one of our test run configurations
involving dynamic mapping of regions and it is blocking the next
release. Until the problem can be solved, it is safer to revert
the changes.

Change-Id: I3d5456e4dbebf291c8b74939c6fb02a912e0903b
Signed-off-by: default avatarAntonio Nino Diaz <antonio.ninodiaz@arm.com>
      f253645d
  3. 14 Mar, 2019 5 commits
  5. 13 Mar, 2019 4 commits
  7. 12 Mar, 2019 1 commit
  9. 08 Mar, 2019 1 commit
    • Heiko Stuebner's avatar
      Fixup register handling in aarch32 reset_handler · c6c10b02
      Heiko Stuebner authored 
      The BL handover interface stores the bootloader arguments in
registers r9-r12, so when the reset_handler stores the lr pointer
in r10 it clobers one of the arguments.

Adapt to use r8 and adapt the comment about registers allowed
to clober.

I've checked aarch32 reset_handlers and none seem to use higher
registers as far as I can tell.

Fixes: a6f340fe

 ("Introduce the new BL handover interface")
Cc: Soby Mathew <soby.mathew@arm.com>
Signed-off-by: default avatarHeiko Stuebner <heiko@sntech.de>
      c6c10b02
  11. 05 Mar, 2019 3 commits
  13. 28 Feb, 2019 13 commits
  15. 27 Feb, 2019 4 commits
    • Varun Wadekar's avatar
      Tegra: Support for scatterfile for the BL31 image · c2ad38ce
      Varun Wadekar authored 
      

This patch provides support for using the scatterfile format as
the linker script with the 'armlink' linker for Tegra platforms.

In order to enable the scatterfile usage the following changes
have been made:

* provide mapping for ld.S symbols in bl_common.h
* include bl_common.h from all the affected files
* update the makefile rules to use the scatterfile and armlink
  to compile BL31
* update pubsub.h to add sections to the scatterfile

NOTE: THIS CHANGE HAS BEEN VERIFIED WITH TEGRA PLATFORMS ONLY.

Change-Id: I7bb78b991c97d74a842e5635c74cb0b18e0fce67
Signed-off-by: default avatarVarun Wadekar <vwadekar@nvidia.com>
      c2ad38ce
    • Antonio Nino Diaz's avatar
      Add support for pointer authentication · b86048c4
      Antonio Nino Diaz authored 
      

The previous commit added the infrastructure to load and save
ARMv8.3-PAuth registers during Non-secure <-> Secure world switches, but
didn't actually enable pointer authentication in the firmware.

This patch adds the functionality needed for platforms to provide
authentication keys for the firmware, and a new option (ENABLE_PAUTH) to
enable pointer authentication in the firmware itself. This option is
disabled by default, and it requires CTX_INCLUDE_PAUTH_REGS to be
enabled.

Change-Id: I35127ec271e1198d43209044de39fa712ef202a5
Signed-off-by: default avatarAntonio Nino Diaz <antonio.ninodiaz@arm.com>
      b86048c4
    • Antonio Nino Diaz's avatar
      Add ARMv8.3-PAuth registers to CPU context · 5283962e
      Antonio Nino Diaz authored 
      

ARMv8.3-PAuth adds functionality that supports address authentication of
the contents of a register before that register is used as the target of
an indirect branch, or as a load.

This feature is supported only in AArch64 state.

This feature is mandatory in ARMv8.3 implementations.

This feature adds several registers to EL1. A new option called
CTX_INCLUDE_PAUTH_REGS has been added to select if the TF needs to save
them during Non-secure <-> Secure world switches. This option must be
enabled if the hardware has the registers or the values will be leaked
during world switches.

To prevent leaks, this patch also disables pointer authentication in the
Secure world if CTX_INCLUDE_PAUTH_REGS is 0. Any attempt to use it will
be trapped in EL3.

Change-Id: I27beba9907b9a86c6df1d0c5bf6180c972830855
Signed-off-by: default avatarAntonio Nino Diaz <antonio.ninodiaz@arm.com>
      5283962e
    • Antonio Nino Diaz's avatar
      Cleanup context handling library · 4d1ccf0e
      Antonio Nino Diaz authored 
      

Minor style cleanup.

Change-Id: Ief19dece41a989e2e8157859a265701549f6c585
Signed-off-by: default avatarAntonio Nino Diaz <antonio.ninodiaz@arm.com>
      4d1ccf0e
  17. 26 Feb, 2019 6 commits
  19. 19 Feb, 2019 2 commits