mirror of
https://github.com/AsahiLinux/u-boot
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73169874a2
These registers can be used to prevent non-secure world from accessing a megabyte aligned region of RAM, use them to protect the u-boot secure monitor code. At first I tried to do this from s_init(), however this inexplicably causes u-boot's networking (e.g. DHCP) to fail, while networking under Linux was fine. So instead I have added a new weak arch function protect_secure_section() called from relocate_secure_section() and reserved the region there. This is better overall since it defers the reservation until after the sec vs. non-sec decision (which can be influenced by an envvar) has been made when booting the os. Signed-off-by: Ian Campbell <ijc@hellion.org.uk> [Jan: tiny style adjustment] Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Reviewed-by: Tom Rini <trini@konsulko.com> Reviewed-by: Thierry Reding <treding@nvidia.com> Tested-by: Thierry Reding <treding@nvidia.com> Tested-by: Ian Campbell <ijc@hellion.org.uk> Signed-off-by: Tom Warren <twarren@nvidia.com> |
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| .. | ||
| am33xx | ||
| bcm281xx | ||
| bcmcygnus | ||
| bcmnsp | ||
| exynos | ||
| iproc-common | ||
| kona-common | ||
| ls102xa | ||
| mx5 | ||
| mx6 | ||
| omap-common | ||
| omap3 | ||
| omap4 | ||
| omap5 | ||
| rmobile | ||
| s5p-common | ||
| s5pc1xx | ||
| stv0991 | ||
| sunxi | ||
| u8500 | ||
| vf610 | ||
| arch_timer.c | ||
| cache_v7.c | ||
| config.mk | ||
| cp15.c | ||
| cpu.c | ||
| Kconfig | ||
| lowlevel_init.S | ||
| Makefile | ||
| nonsec_virt.S | ||
| psci.S | ||
| start.S | ||
| syslib.c | ||
| virt-dt.c | ||
| virt-v7.c | ||