Commit e7273ff4 authored by Marc Zyngier's avatar Marc Zyngier Committed by Russell King
Browse files

ARM: 8488/1: Make IPI_CPU_BACKTRACE a "non-secure" SGI



Having IPI_CPU_BACKTRACE as SGI15 may not work if the kernel is
running in non-secure mode and that the secure firmware has
decided to follow ARM's recommendations that SGI8-15 should
be reserved for secure purpose.

Now that we are "only" using SGI0-6, change IPI_CPU_BACKTRACE
to use SGI7, which makes it more likely to work.
Signed-off-by: default avatarMarc Zyngier <marc.zyngier@arm.com>
Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
parent 89d798b7
......@@ -72,7 +72,12 @@ enum ipi_msg_type {
IPI_CPU_STOP,
IPI_IRQ_WORK,
IPI_COMPLETION,
IPI_CPU_BACKTRACE = 15,
IPI_CPU_BACKTRACE,
/*
* SGI8-15 can be reserved by secure firmware, and thus may
* not be usable by the kernel. Please keep the above limited
* to at most 8 entries.
*/
};
static DECLARE_COMPLETION(cpu_running);
......
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