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| author | Nicholas Piggin <npiggin@gmail.com> | 2019-01-08 00:04:23 +1000 |
|---|---|---|
| committer | Stewart Smith <stewart@linux.ibm.com> | 2019-02-13 14:36:43 +1100 |
| commit | 75669cb37067b52f80f43858a2eb9fac69b451ee (patch) | |
| tree | cececd1cfcd926c550d3ca644a3d2ba7d967b1c6 /core | |
| parent | ebb814a80369adee82a509d50d41d56674ea68e4 (diff) | |
| download | skiboot-75669cb37067b52f80f43858a2eb9fac69b451ee.zip skiboot-75669cb37067b52f80f43858a2eb9fac69b451ee.tar.gz skiboot-75669cb37067b52f80f43858a2eb9fac69b451ee.tar.bz2 | |
asm/head: provide asm support for interrupts to be returned from
This adds the redzone to the interrupt stack, and code to restore
registers.
This can be used for a number of things. Initially it will be used
to recover from system reset interrupts, it could later be used to
handle recoverable machine checks, use the decrementer to implement
a watchdog, handle HMI interrupts at boot, and to implement virtual
memory.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Stewart Smith <stewart@linux.ibm.com>
Diffstat (limited to 'core')
| -rw-r--r-- | core/exceptions.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/core/exceptions.c b/core/exceptions.c index ed92edf..f05bcfb 100644 --- a/core/exceptions.c +++ b/core/exceptions.c @@ -40,9 +40,9 @@ static void dump_regs(struct stack_frame *stack) } /* Called from head.S, thus no prototype */ -void exception_entry(struct stack_frame *stack) __noreturn; +void __noreturn exception_entry(struct stack_frame *stack); -void exception_entry(struct stack_frame *stack) +void __noreturn exception_entry(struct stack_frame *stack) { uint64_t nip; uint64_t msr; |