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powerpc/powernv: Machine check and other system interrupts

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OPAL can handle various interrupt for us such as Machine Checks (it
performs all sorts of recovery tasks and passes back control to us with
informations about the error), Hardware Management Interrupts and Softpatch
interrupts.

This wires up the mechanisms and prints out specific informations returned
by HAL when a machine check occurs.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
Benjamin Herrenschmidt
2011-09-19 17:45:04 +00:00
parent a125e0928c
commit ed79ba9e15
6 changed files with 174 additions and 4 deletions
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10
arch/powerpc/kernel/asm-offsets.c
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@@ -48,6 +48,9 @@
#ifdef CONFIG_PPC_ISERIES
#include <asm/iseries/alpaca.h>
#endif
#ifdef CONFIG_PPC_POWERNV
#include <asm/opal.h>
#endif
#if defined(CONFIG_KVM) || defined(CONFIG_KVM_GUEST)
#include <linux/kvm_host.h>
#endif
@@ -609,5 +612,12 @@ int main(void)
arch.timing_last_enter.tv32.tbl));
#endif
#ifdef CONFIG_PPC_POWERNV
DEFINE(OPAL_MC_GPR3, offsetof(struct opal_machine_check_event, gpr3));
DEFINE(OPAL_MC_SRR0, offsetof(struct opal_machine_check_event, srr0));
DEFINE(OPAL_MC_SRR1, offsetof(struct opal_machine_check_event, srr1));
DEFINE(PACA_OPAL_MC_EVT, offsetof(struct paca_struct, opal_mc_evt));
#endif
return 0;
}