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authorRussell King <rmk+kernel@arm.linux.org.uk>2015-08-21 09:30:16 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2015-08-21 13:55:52 +0100
commit3c2aed5b28819564e1a07b4686bd89802bcc4d6b (patch)
tree063a2dd93a675eb5352433b9f381f1fc5313bf64
parent0171356a7708af01ad3224702b7f0aaa5b7a1399 (diff)
downloadop-kernel-dev-3c2aed5b28819564e1a07b4686bd89802bcc4d6b.zip
op-kernel-dev-3c2aed5b28819564e1a07b4686bd89802bcc4d6b.tar.gz
ARM: domains: get rid of manager mode for user domain
Since we switched to early trap initialisation in 94e5a85b3be0 ("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>
-rw-r--r--arch/arm/include/asm/domain.h2
-rw-r--r--arch/arm/kernel/traps.c1
2 files changed, 1 insertions, 2 deletions
diff --git a/arch/arm/include/asm/domain.h b/arch/arm/include/asm/domain.h
index 4218f88..08b601e 100644
--- a/arch/arm/include/asm/domain.h
+++ b/arch/arm/include/asm/domain.h
@@ -59,7 +59,7 @@
#define domain_val(dom,type) ((type) << (2 * (dom)))
#define DACR_INIT \
- (domain_val(DOMAIN_USER, DOMAIN_MANAGER) | \
+ (domain_val(DOMAIN_USER, DOMAIN_CLIENT) | \
domain_val(DOMAIN_KERNEL, DOMAIN_MANAGER) | \
domain_val(DOMAIN_TABLE, DOMAIN_MANAGER) | \
domain_val(DOMAIN_IO, DOMAIN_CLIENT))
diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c
index d358226..969f9d9 100644
--- a/arch/arm/kernel/traps.c
+++ b/arch/arm/kernel/traps.c
@@ -870,7 +870,6 @@ void __init early_trap_init(void *vectors_base)
kuser_init(vectors_base);
flush_icache_range(vectors, vectors + PAGE_SIZE * 2);
- modify_domain(DOMAIN_USER, DOMAIN_CLIENT);
#else /* ifndef CONFIG_CPU_V7M */
/*
* on V7-M there is no need to copy the vector table to a dedicated
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