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ARM: domains: get rid of manager mode for user domain

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Since we switched to early trap initialisation in 94e5a85b3b
("ARM: earlier initialization of vectors page") we haven't been writing
directly to the vectors page, and so there's no need for this domain
to be in manager mode.  Switch it to client mode.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Russell King 2015-08-21 09:30:16 +01:00
parent 0171356a77
commit 3c2aed5b28
2 changed files with 1 additions and 2 deletions
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2
arch/arm/include/asm/domain.h
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@ -59,7 +59,7 @@
#define domain_val(dom,type) ((type) << (2 * (dom))) #define domain_val(dom,type) ((type) << (2 * (dom)))
#define DACR_INIT \ #define DACR_INIT \
(domain_val(DOMAIN_USER, DOMAIN_MANAGER) | \ (domain_val(DOMAIN_USER, DOMAIN_CLIENT) | \
domain_val(DOMAIN_KERNEL, DOMAIN_MANAGER) | \ domain_val(DOMAIN_KERNEL, DOMAIN_MANAGER) | \
domain_val(DOMAIN_TABLE, DOMAIN_MANAGER) | \ domain_val(DOMAIN_TABLE, DOMAIN_MANAGER) | \
domain_val(DOMAIN_IO, DOMAIN_CLIENT)) domain_val(DOMAIN_IO, DOMAIN_CLIENT))

1
arch/arm/kernel/traps.c
View File

@ -870,7 +870,6 @@ void __init early_trap_init(void *vectors_base)
kuser_init(vectors_base); kuser_init(vectors_base);
flush_icache_range(vectors, vectors + PAGE_SIZE * 2); flush_icache_range(vectors, vectors + PAGE_SIZE * 2);
modify_domain(DOMAIN_USER, DOMAIN_CLIENT);
#else /* ifndef CONFIG_CPU_V7M */ #else /* ifndef CONFIG_CPU_V7M */
/* /*
* on V7-M there is no need to copy the vector table to a dedicated * on V7-M there is no need to copy the vector table to a dedicated