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fix(rme): xlat table setup fails for bl2

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The patch 8c980a4 created a 4KB shared region from the 32MB
Realm region for RMM-EL3 communication. But this meant that BL2
needs to map a region of 32MB - 4KB, which required more xlat
tables at runtime. This patch maps the entire 32MB region in BL2
which is more memory efficient in terms of xlat tables needed.

Signed-off-by: Soby Mathew <soby.mathew@arm.com>
Change-Id: I17aa27545293d7b5bbec1c9132ea2c22bf2e7e65
This commit is contained in:
Soby Mathew 2022-07-06 16:01:40 +01:00
parent e45ffa18d3
commit e516ba6de5
1 changed files with 6 additions and 1 deletions
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7
include/plat/arm/common/arm_def.h
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@ -310,9 +310,14 @@
MT_MEMORY | MT_RW | MT_SECURE)
#if ENABLE_RME
/*
* We add the EL3_RMM_SHARED size to RMM mapping to map the region as a block.
* Else we end up requiring more pagetables in BL2 for ROMLIB build.
*/
#define ARM_MAP_RMM_DRAM MAP_REGION_FLAT( \
PLAT_ARM_RMM_BASE, \
PLAT_ARM_RMM_SIZE, \
(PLAT_ARM_RMM_SIZE + \
ARM_EL3_RMM_SHARED_SIZE), \
MT_MEMORY | MT_RW | MT_REALM)