diff options
Diffstat (limited to 'core')
| -rw-r--r-- | core/exceptions.c | 26 |
1 files changed, 1 insertions, 25 deletions
diff --git a/core/exceptions.c b/core/exceptions.c index 6e0d27f..a2ef448 100644 --- a/core/exceptions.c +++ b/core/exceptions.c @@ -421,30 +421,9 @@ static int64_t patch_exception(uint64_t vector, uint64_t glue, bool hv) /* Patch-in the vector number */ *(uint32_t *)(glue + exc_secondary_patch_type) |= vector; - /* - * If machine check, patch GET_STACK to get to the MC stack - * instead of the normal stack. - * - * To simplify the arithmetic involved I make assumptions - * on the fact that the base of all CPU stacks is 64k aligned - * and that our stack size is < 32k, which means that the - * "addi" instruction used in GET_STACK() is always using a - * small (<32k) positive offset, which we can then easily - * fixup with a simple addition - */ BUILD_ASSERT(STACK_SIZE < 0x8000); BUILD_ASSERT(!(CPU_STACKS_BASE & 0xffff)); - if (vector == 0x200) { - /* - * The addi we try to patch is the 3rd instruction - * of GET_STACK(). If you change the macro, you must - * update this code - */ - iaddr = glue + exc_secondary_patch_stack + 8; - *(uint32_t *)iaddr += MC_STACK_SIZE; - } - /* Standard exception ? All done */ if (!hv) goto flush; @@ -469,13 +448,10 @@ static int64_t patch_exception(uint64_t vector, uint64_t glue, bool hv) } static int64_t opal_register_exc_handler(uint64_t opal_exception, - uint64_t handler_address, + uint64_t handler_address __unused, uint64_t glue_cache_line) { switch(opal_exception) { - case OPAL_MACHINE_CHECK_HANDLER: - client_mc_address = handler_address; - return patch_exception(0x200, glue_cache_line, false); case OPAL_HYPERVISOR_MAINTENANCE_HANDLER: return patch_exception(0xe60, glue_cache_line, true); #if 0 /* We let Linux handle softpatch */ |