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ARM: bugs: hook processor bug checking into SMP and suspend paths

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Check for CPU bugs when secondary processors are being brought online,
and also when CPUs are resuming from a low power mode.  This gives an
opportunity to check that processor specific bug workarounds are
correctly enabled for all paths that a CPU re-enters the kernel.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Boot-tested-by: Tony Lindgren <tony@atomide.com>
Reviewed-by: Tony Lindgren <tony@atomide.com>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
This commit is contained in:
Russell King
2018-05-10 13:00:43 +01:00
parent a5b9177f69
commit 26602161b5
4 changed files with 13 additions and 0 deletions
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5
arch/arm/kernel/bugs.c
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@@ -3,7 +3,12 @@
#include <asm/bugs.h>
#include <asm/proc-fns.h>
void check_other_bugs(void)
{
}
void __init check_bugs(void)
{
check_writebuffer_bugs();
check_other_bugs();
}