ARM: 8739/1: NOMMU: Setup VBAR/Hivecs for secondaries cores (62d1c95d) · Commits · 戴 / test

With switch to dynamic exception base address setting, VBAR/Hivecs set only for boot CPU, but secondaries stay unaware of that. That might lead to weird effects when trying up to bring up secondaries. Fixes: ("ARM: 8649/2: nommu: remove Hivecs configuration is asm") Signed-off-by:

Vladimir Murzin <vladimir.murzin@arm.com> Acked-by:

afzal mohammed <afzal.mohd.ma@gmail.com> Signed-off-by:

Russell King <rmk+kernel@armlinux.org.uk>

arch/arm/include/asm/memory.h

+1 −0

Original line number	Diff line number	Diff line
		@@ -88,6 +88,7 @@
		#else /* CONFIG_MMU */

		#ifndef __ASSEMBLY__
		extern unsigned long setup_vectors_base(void);
		extern unsigned long vectors_base;
		#define VECTORS_BASE vectors_base
		#endif

arch/arm/kernel/smp.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -379,6 +379,9 @@ asmlinkage void secondary_start_kernel(void)

		cpu_init();

		#ifndef CONFIG_MMU
		setup_vectors_base();
		#endif
		pr_debug("CPU%u: Booted secondary processor\n", cpu);

		preempt_disable();

arch/arm/mm/nommu.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -31,7 +31,7 @@ struct mpu_rgn_info mpu_rgn_info;

		#ifdef CONFIG_CPU_CP15
		#ifdef CONFIG_CPU_HIGH_VECTOR
		static unsigned long __init setup_vectors_base(void)
		unsigned long setup_vectors_base(void)
		{
		unsigned long reg = get_cr();

		@@ -57,7 +57,7 @@ static inline bool security_extensions_enabled(void)
		return 0;
		}

		static unsigned long __init setup_vectors_base(void)
		unsigned long setup_vectors_base(void)
		{
		unsigned long base = 0, reg = get_cr();

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