feat(gpt): add support for large GPT mappings
This patch adds support for large GPT mappings using
Contiguous descriptors. The maximum size of supported
contiguous block in MB is defined in RME_GPT_MAX_BLOCK
build parameter and takes values 0, 2, 32 and 512 and
by default set to 2 in make_helpers/defaults.mk.
Setting RME_GPT_MAX_BLOCK value to 0 disables use of
Contiguous descriptors.
Function gpt_tlbi_by_pa_ll() and its declaration
are removed from lib/aarch64/misc_helpers.S and
include/arch/aarch64/arch_helpers.h, because the
GPT library now uses tlbirpalos_xxx() functions.
Change-Id: Ia9a59bde1741c5666b4ca1de9324e6dfd6f734eb
Signed-off-by: AlexeiFedorov <Alexei.Fedorov@arm.com>
diff --git a/docs/getting_started/build-options.rst b/docs/getting_started/build-options.rst
index 6ab95f9..0d4261d 100644
--- a/docs/getting_started/build-options.rst
+++ b/docs/getting_started/build-options.rst
@@ -812,6 +812,11 @@
instead of the BL1 entrypoint. It can take the value 0 (CPU reset to BL1
entrypoint) or 1 (CPU reset to SP_MIN entrypoint). The default value is 0.
+- ``RME_GPT_MAX_BLOCK``: Numeric value in MB to define maximum size of
+ supported contiguous blocks in GPT Library. This parameter can take the
+ values 0, 2, 32 and 512. Setting this value to 0 disables use of Contigious
+ descriptors. Default value is 2.
+
- ``ROT_KEY``: This option is used when ``GENERATE_COT=1``. It specifies a
file that contains the ROT private key in PEM format or a PKCS11 URI and
enforces public key hash generation. If ``SAVE_KEYS=1``, only a file is