[U-Boot] [PATCH] ARM: HYP/non-sec: relocation before enable secondary cores

Peng Fan
2015-02-04T10:15:09Z

If CONFIG_ARMV7_PSCI is not defined and CONFIG_ARMV7_SECURE_BASE is defined,
smp_kicl_all_cpus may enable secondary cores and runs into secure_ram_addr(
_smp_pen), before code is relocated to secure ram.
So need relocation to secure ram before enable secondary cores.

Signed-off-by: Peng Fan <Peng.Fan@freescale.com>
---
arch/arm/cpu/armv7/virt-v7.c | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/arch/arm/cpu/armv7/virt-v7.c b/arch/arm/cpu/armv7/virt-v7.c
index b69fd37..4cb8806 100644
--- a/arch/arm/cpu/armv7/virt-v7.c
+++ b/arch/arm/cpu/armv7/virt-v7.c
@@ -112,13 +112,20 @@ int armv7_init_nonsec(void)
for (i = 1; i <= itlinesnr; i++)
writel((unsigned)-1, gic_dist_addr + GICD_IGROUPRn + 4 * i);

+ /*
+ * Relocate secure section before any cpu runs in secure ram.
+ * smp_kick_all_cpus may enable other cores and runs into secure
+ * ram, so need to relocate secure section before enabling other
+ * cores.
+ */
+ relocate_secure_section();
+
#ifndef CONFIG_ARMV7_PSCI
smp_set_core_boot_addr((unsigned long)secure_ram_addr(_smp_pen), -1);
smp_kick_all_cpus();
#endif

/* call the non-sec switching code on this CPU also */
- relocate_secure_section();
secure_ram_addr(_nonsec_init)();
return 0;
}
--
1.8.4