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  5. 24 Jul, 2018 2 commits
  7. 19 Jul, 2018 1 commit
  9. 18 Jul, 2018 2 commits
  11. 16 Jul, 2018 5 commits
  13. 13 Jul, 2018 1 commit
  15. 12 Jul, 2018 1 commit
  17. 11 Jul, 2018 3 commits
  19. 10 Jul, 2018 1 commit
  21. 05 Jul, 2018 2 commits
  23. 03 Jul, 2018 2 commits
  25. 28 Jun, 2018 2 commits
  27. 27 Jun, 2018 1 commit
    • Jeenu Viswambharan's avatar
      DynamIQ: Enable MMU without using stack · 64ee263e
      Jeenu Viswambharan authored 
      

Having an active stack while enabling MMU has shown coherency problems.
This patch builds on top of translation library changes that introduces
MMU-enabling without using stacks.

Previously, with HW_ASSISTED_COHERENCY, data caches were disabled while
enabling MMU only because of active stack. Now that we can enable MMU
without using stack, we can enable both MMU and data caches at the same
time.

NOTE: Since this feature depends on using translation table library v2,
disallow using translation table library v1 with HW_ASSISTED_COHERENCY.

Fixes ARM-software/tf-issues#566

Change-Id: Ie55aba0c23ee9c5109eb3454cb8fa45d74f8bbb2
Signed-off-by: default avatarJeenu Viswambharan <jeenu.viswambharan@arm.com>
      64ee263e
  29. 26 Jun, 2018 1 commit
  31. 23 Jun, 2018 1 commit
  33. 22 Jun, 2018 2 commits
    • John Tsichritzis's avatar
      Fix typos in documentation · 677ad32c
      John Tsichritzis authored 
      

In the porting guide, there are blue boxes that describe the argument
types and the return type of each function.  A small typo caused some of
these boxes not being properly rendered.

In the user guide, small typos were fixed that caused random text being
unintentionally rendered as bold.  Also, a slight rewording was done in
the section describing the DYN_DISABLE_AUTH flag.

Change-Id: I57303ca609436a82162fa9b42c06b0d5a63da6df
Signed-off-by: default avatarJohn Tsichritzis <john.tsichritzis@arm.com>
      677ad32c
    • Antonio Nino Diaz's avatar
      xlat: Remove mmap_attr_t enum type · 3a1b7b10
      Antonio Nino Diaz authored 
      

The values defined in this type are used in logical operations, which
goes against MISRA Rule 10.1: "Operands shall not be of an inappropriate
essential type".

Now, `unsigned int` is used instead. This also allows us to move the
dynamic mapping bit from 30 to 31. It was an undefined behaviour in the
past because an enum is signed by default, and bit 31 corresponds to the
sign bit. It is undefined behaviour to modify the sign bit. Now, bit 31
is free to use as it was originally meant to be.

mmap_attr_t is now defined as an `unsigned int` for backwards
compatibility.

Change-Id: I6b31218c14b9c7fdabebe432de7fae6e90a97f34
Signed-off-by: default avatarAntonio Nino Diaz <antonio.ninodiaz@arm.com>
      3a1b7b10
  35. 21 Jun, 2018 3 commits
    • Jeenu Viswambharan's avatar
      SDEI: Make dispatches synchronous · cdb6ac94
      Jeenu Viswambharan authored 
      

SDEI event dispatches currently only sets up the Non-secure context
before returning to the caller. The actual dispatch only happens upon
exiting EL3 next time.

However, for various error handling scenarios, it's beneficial to have
the dispatch happen synchronously. I.e. when receiving SDEI interrupt,
or for a successful sdei_dispatch_event() call, the event handler is
executed; and upon the event completion, dispatcher execution resumes
after the point of dispatch. The jump primitives introduced in the
earlier patch facilitates this feature.

With this patch:

  - SDEI interrupts and calls to sdei_dispatch_event prepares the NS
    context for event dispatch, then sets a jump point, and immediately
    exits EL3. This results in the client handler executing in
    Non-secure.

  - When the SDEI client completes the dispatched event, the SDEI
    dispatcher does a longjmp to the jump pointer created earlier. For
    the caller of the sdei_dispatch_event() in particular, this would
    appear as if call returned successfully.

The dynamic workaround for CVE_2018_3639 is slightly shifted around as
part of related minor refactoring. It doesn't affect the workaround
functionality.

Documentation updated.

NOTE: This breaks the semantics of the explicit dispatch API, and any
exiting usages should be carefully reviewed.

Change-Id: Ib9c876d27ea2af7fb22de49832e55a0da83da3f9
Signed-off-by: default avatarJeenu Viswambharan <jeenu.viswambharan@arm.com>
      cdb6ac94
    • Jeenu Viswambharan's avatar
      SDEI: Allow platforms to define explicit events · af2c9ecd
      Jeenu Viswambharan authored 
      

The current macros only allow to define dynamic and statically-bound
SDEI events. However, there ought be a mechanism to define SDEI events
that are explicitly dispatched; i.e., events that are dispatched as a
result of a previous secure interrupt or other exception

This patch introduces SDEI_EXPLICIT_EVENT() macro to define an explicit
event. They must be placed under private mappings. Only the priority
flags are allowed to be additionally specified.

Documentation updated.

Change-Id: I2e12f5571381195d6234c9dfbd5904608ad41db3
Signed-off-by: default avatarJeenu Viswambharan <jeenu.viswambharan@arm.com>
      af2c9ecd
    • Sumit Garg's avatar
      synquacer: Add platform makefile and documentation · 150c38e8
      Sumit Garg authored 
      

Add Makefile and plaform definations file.
My thanks to Daniel Thompson and Ard Biesheuvel for the bits and pieces
I've taken from their earlier work regarding build and deploy steps for
Developerbox based on Synquacer SoCs. They deserve much of the credit
for this work although, since I assembled and tested things, any blame
is probably mine.
Signed-off-by: default avatarSumit Garg <sumit.garg@linaro.org>
Tested-by: default avatarDaniel Thompson <daniel.thompson@linaro.org>
Tested-by: default avatarArd Biesheuvel <ard.biesheuvel@linaro.org>
      150c38e8
  37. 19 Jun, 2018 4 commits
  39. 18 Jun, 2018 1 commit
  41. 15 Jun, 2018 1 commit
  43. 14 Jun, 2018 1 commit
  45. 13 Jun, 2018 1 commit