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tegra132: Increase TrustZone Carveout Region size 

Increase TZ carveout region size to 4MiB. TTB lives in the first 1MiB of the
trust zone. Rest of the TZ memory can be used by el3 monitor.

BUG=chrome-os-partner:31615
BRANCH=None
TEST=Compiles successfully and boots to kernel

Change-Id: I448574860186815992c15a358a1481faecf224bd
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: de0f3f8016a4e566a2bacb967ef92213648d8257
Original-Change-Id: I1f25b7b119037cba7055a1bd61997f020a0b1010
Original-Signed-off-by: Furquan Shaikh <furquan@google.com>
Original-Reviewed-on: https://chromium-review.googlesource.com/214370
Original-Tested-by: Furquan Shaikh <furquan@chromium.org>
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Original-Commit-Queue: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/9003
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
This commit is contained in:
Furquan Shaikh 2014-08-26 15:26:13 -07:00 committed by Patrick Georgi
parent b8de44742e
commit 20772a8478
3 changed files with 7 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
src/soc/nvidia/tegra132/Kconfig
View File

@ -101,7 +101,7 @@ config MTS_DIRECTORY
config TRUSTZONE_CARVEOUT_SIZE_MB
hex "Size of Trust Zone region"
default 0x1
default 0x4
help
Size of Trust Zone area in MiB to reserve in memory map.

5
src/soc/nvidia/tegra132/mmu_operations.c
View File

@ -84,6 +84,7 @@ void tegra132_mmu_init(void)
{
uintptr_t tz_base_mib;
size_t tz_size_mib;
size_t ttb_size_mib;
struct memranges *map = &t132_mmap_ranges;
tegra132_memrange_init(map);
@ -92,7 +93,7 @@ void tegra132_mmu_init(void)
/* Place page tables at the base of the trust zone region. */
carveout_range(CARVEOUT_TZ, &tz_base_mib, &tz_size_mib);
tz_base_mib *= MiB;
tz_size_mib *= MiB;
mmu_init(map, (void *)tz_base_mib, tz_size_mib);
ttb_size_mib = TTB_SIZE * MiB;
mmu_init(map, (void *)tz_base_mib, ttb_size_mib);
mmu_enable(tz_base_mib);
}

3
src/soc/nvidia/tegra132/mmu_operations.h
View File

@ -22,4 +22,7 @@
void tegra132_mmu_init(void);
/* Default ttb size of 1MiB */
#define TTB_SIZE 0x1
#endif //__SOC_NVIDIA_TEGRA132_MMU_OPERATIONS_H__