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  1. 17 Apr, 2019 1 commit
    • Aditya Angadi's avatar
      plat/arm: introduce wrapper functions to setup secure watchdog · b0c97daf
      Aditya Angadi authored 
      

The BL1 stage setup code for ARM platforms sets up the SP805 watchdog
controller as the secure watchdog. But not all ARM platforms use SP805
as the secure watchdog controller.

So introduce two new ARM platform code specific wrapper functions to
start and stop the secure watchdog. These functions then replace the
calls to SP805 driver in common BL1 setup code. All the ARM platforms
implement these wrapper functions by either calling into SP805 driver
or the SBSA watchdog driver.

Change-Id: I1a9a11b124cf3fac2a84f22ca40acd440a441257
Signed-off-by: default avatarAditya Angadi <aditya.angadi@arm.com>
      b0c97daf
  3. 16 Apr, 2019 1 commit
  5. 12 Apr, 2019 1 commit
    • Ambroise Vincent's avatar
      Mbed TLS: Remove weak heap implementation · 2374ab17
      Ambroise Vincent authored 
      

The implementation of the heap function plat_get_mbedtls_heap() becomes
mandatory for platforms supporting TRUSTED_BOARD_BOOT.

The shared Mbed TLS heap default weak function implementation is
converted to a helper function get_mbedtls_heap_helper() which can be
used by the platforms for their own function implementation.

Change-Id: Ic8f2994e25e3d9fcd371a21ac459fdcafe07433e
Signed-off-by: default avatarAmbroise Vincent <ambroise.vincent@arm.com>
      2374ab17
  7. 11 Apr, 2019 6 commits
  9. 10 Apr, 2019 1 commit
    • Wei Yu's avatar
      hikey960: Fix race condition between hotplug and idles · 7d76df7d
      Wei Yu authored 
      

From the hotplug testing on Hikey960, in some case cores fail to become
online in the system. When some cores are hotplugged off, if other
cores in the same cluster enter into CPU idle states at the meantime,
the cluster will be powered off. This introduces the state machine
malfunction in the power controller, thus when hotplug on the core
afterwards, it fails to boot up the core because the power controller
thinks the cluster is powered on.

This patch is to avoid race condition between hotplug and idles by
preventing cluster power off when some of cores in the cluster are
hotplugged off, if all cores in the same cluster are hotplugged off,
the cluster can be powered off.

Change-Id: Ib2feeb093357c70409a3536cb4f9da9b504fdcbe
Signed-off-by: default avatarWei Yu <yuwei3@hisilicon.com>
Signed-off-by: default avatarLeo Yan <leo.yan@linaro.org>
      7d76df7d
  11. 08 Apr, 2019 2 commits
  13. 03 Apr, 2019 3 commits
  15. 02 Apr, 2019 7 commits
  17. 01 Apr, 2019 2 commits
  19. 26 Mar, 2019 1 commit
  21. 21 Mar, 2019 2 commits
  23. 14 Mar, 2019 4 commits
    • Heiko Stuebner's avatar
      rockchip: add an fdt parsing stub for platform param · 7029e806
      Heiko Stuebner authored 
      

The Rockchip ATF platform can be entered from both Coreboot and U-Boot.
While Coreboot does submit the list of linked parameter structs as
platform param, upstream u-boot actually always provides a pointer
to a devicetree as parameter.
This results in current ATF not running at all when started from U-Boot.

To fix this, add a stub that checks if the parameter is a fdt so we
can at least boot and not get stuck. Later on we can extend this with
actual parsing of information from the devicetree.
Signed-off-by: default avatarHeiko Stuebner <heiko@sntech.de>
Cc: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
      7029e806
    • Louis Mayencourt's avatar
      fvp: Increase the size of the stack for FVP · 01aa5247
      Louis Mayencourt authored 
      

When RECLAIM_INIT_CODE is 1, the stack is used to contain the .text.init
section. This is by default enable on FVP. Due to the size increase of
the .text.init section, the stack had to be adjusted contain it.

Change-Id: Ia392341970fb86c0426cf2229b1a7295453e2e32
Signed-off-by: default avatarLouis Mayencourt <louis.mayencourt@arm.com>
      01aa5247
    • Sandrine Bailleux's avatar
      Put Pointer Authentication key value in BSS section · 47102b35
      Sandrine Bailleux authored 
      

The dummy implementation of the plat_init_apiakey() platform API uses
an internal 128-bit buffer to store the initial key value used for
Pointer Authentication support.

The intent - as stated in the file comments - was for this buffer to
be write-protected by the MMU. Initialization of the buffer would be
performed before enabling the MMU, thus bypassing write protection
checks.

However, the key buffer ended up into its own read-write section by
mistake due to a typo on the section name ('rodata.apiakey' instead of
'.rodata.apiakey', note the leading dot). As a result, the linker
script was not pulling it into the .rodata output section.

One way to address this issue could have been to fix the section
name. However, this approach does not work well for BL1. Being the
first image in the boot flow, it typically is sitting in real ROM
so we don't have the capacity to update the key buffer at any time.

The dummy implementation of plat_init_apiakey() provided at the moment
is just there to demonstrate the Pointer Authentication feature in
action. Proper key management and key generation would have to be a
lot more careful on a production system.

Therefore, the approach chosen here to leave the key buffer in
writable memory but move it to the BSS section. This does mean that
the key buffer could be maliciously updated for intalling unintended
keys on the warm boot path but at the feature is only at an
experimental stage right now, this is deemed acceptable.

Change-Id: I121ccf35fe7bc86c73275a4586b32d4bc14698d6
Signed-off-by: default avatarSandrine Bailleux <sandrine.bailleux@arm.com>
      47102b35
    • John Tsichritzis's avatar
      Introduce preliminary support for Neoverse Zeus · a4546e80
      John Tsichritzis authored 
      

Change-Id: If56d1e200a31bd716726d7fdc1cc0ae8a63ba3ee
Signed-off-by: default avatarJohn Tsichritzis <john.tsichritzis@arm.com>
      a4546e80
  25. 13 Mar, 2019 5 commits
  27. 12 Mar, 2019 1 commit
  29. 08 Mar, 2019 3 commits