arm-trusted-firmware

1699 Commits

5 Branches

114 Tags

55 MiB

Tree: 4f96a49843

Commit Graph

Author	SHA1	Message	Date
Yatharth Kochar	9c1dceb106	AArch32: Add `memcpy4` function in assembly At present the `el3_entrypoint_common` macro uses `memcpy` function defined in lib/stdlib/mem.c file, to copy data from ROM to RAM for BL1. Depending on the compiler being used the stack could potentially be used, in `memcpy`, for storing the local variables. Since the stack is initialized much later in `el3_entrypoint_common` it may result in unknown behaviour. This patch adds `memcpy4` function definition in assembly so that it can be used before the stack is initialized and it also replaces `memcpy` by `memcpy4` in `el3_entrypoint_common` macro, to copy data from ROM to RAM for BL1. Change-Id: I3357a0e8095f05f71bbbf0b185585d9499bfd5e0	8 years ago
Yatharth Kochar	1a0a3f0622	AArch32: Common changes needed for BL1/BL2 This patch adds common changes to support AArch32 state in BL1 and BL2. Following are the changes: * Added functions for disabling MMU from Secure state. * Added AArch32 specific SMC function. * Added semihosting support. * Added reporting of unhandled exceptions. * Added uniprocessor stack support. * Added `el3_entrypoint_common` macro that can be shared by BL1 and BL32 (SP_MIN) BL stages. The `el3_entrypoint_common` is similar to the AArch64 counterpart with the main difference in the assembly instructions and the registers that are relevant to AArch32 execution state. * Enabled `LOAD_IMAGE_V2` flag in Makefile for `ARCH=aarch32` and added check to make sure that platform has not overridden to disable it. Change-Id: I33c6d8dfefb2e5d142fdfd06a0f4a7332962e1a3	8 years ago
Soby Mathew	f24307dec4	AArch32: Add assembly helpers This patch adds various assembly helpers for AArch32 like : * cache management : Functions to flush, invalidate and clean cache by MVA. Also helpers to do cache operations by set-way are also added. * stack management: Macros to declare stack and get the current stack corresponding to current CPU. * Misc: Macros to access co processor registers in AArch32, macros to define functions in assembly, assert macros, generic `do_panic()` implementation and function to zero block of memory. Change-Id: I7b78ca3f922c0eda39beb9786b7150e9193425be	9 years ago

Author

SHA1

Message

Date

Yatharth Kochar

9c1dceb106

AArch32: Add `memcpy4` function in assembly

At present the `el3_entrypoint_common` macro uses `memcpy`
function defined in lib/stdlib/mem.c file, to copy data
from ROM to RAM for BL1. Depending on the compiler being
used the stack could potentially be used, in `memcpy`,
for storing the local variables. Since the stack is
initialized much later in `el3_entrypoint_common` it
may result in unknown behaviour.

This patch adds `memcpy4` function definition in assembly so
that it can be used before the stack is initialized and it
also replaces `memcpy` by `memcpy4` in `el3_entrypoint_common`
macro, to copy data from ROM to RAM for BL1.

Change-Id: I3357a0e8095f05f71bbbf0b185585d9499bfd5e0

8 years ago

Yatharth Kochar

1a0a3f0622

AArch32: Common changes needed for BL1/BL2

This patch adds common changes to support AArch32 state in
BL1 and BL2. Following are the changes:

* Added functions for disabling MMU from Secure state.
* Added AArch32 specific SMC function.
* Added semihosting support.
* Added reporting of unhandled exceptions.
* Added uniprocessor stack support.
* Added `el3_entrypoint_common` macro that can be
  shared by BL1 and BL32 (SP_MIN) BL stages. The
  `el3_entrypoint_common` is similar to the AArch64
  counterpart with the main difference in the assembly
  instructions and the registers that are relevant to
  AArch32 execution state.
* Enabled `LOAD_IMAGE_V2` flag in Makefile for
  `ARCH=aarch32` and added check to make sure that
  platform has not overridden to disable it.

Change-Id: I33c6d8dfefb2e5d142fdfd06a0f4a7332962e1a3

8 years ago

Soby Mathew

f24307dec4

AArch32: Add assembly helpers

This patch adds various assembly helpers for AArch32 like :

* cache management : Functions to flush, invalidate and clean
cache by MVA. Also helpers to do cache operations by set-way
are also added.

* stack management: Macros to declare stack and get the current
stack corresponding to current CPU.

* Misc: Macros to access co processor registers in AArch32,
macros to define functions in assembly, assert macros, generic
`do_panic()` implementation and function to zero block of memory.

Change-Id: I7b78ca3f922c0eda39beb9786b7150e9193425be

9 years ago

3 Commits (4f96a498436d63864de38b29ff2496755e16fb0c)