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authorKyösti Mälkki <kyosti.malkki@gmail.com>2014-12-29 19:36:50 +0200
committerKyösti Mälkki <kyosti.malkki@gmail.com>2015-03-11 18:15:22 +0100
commit48b3dbc7483f5404a2dfb3b8bb5f4bcf7d3c4b09 (patch)
tree429accfcc8e6eb89206abd1e14a0b25c0b687074 /src/cpu/x86
parentb0922f0183cb50b9714285c539c387956d86814c (diff)
x86 SMM: Replace weak prototypes with weak function stub
Change-Id: I682617cd2f4310d3e2e2ab6ffec51def28a4779c Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: http://review.coreboot.org/7961 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@google.com> Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Diffstat (limited to 'src/cpu/x86')
-rw-r--r--src/cpu/x86/smm/smihandler.c21
1 files changed, 15 insertions, 6 deletions
diff --git a/src/cpu/x86/smm/smihandler.c b/src/cpu/x86/smm/smihandler.c
index bd03030c4c..cbd6d44bc7 100644
--- a/src/cpu/x86/smm/smihandler.c
+++ b/src/cpu/x86/smm/smihandler.c
@@ -199,12 +199,9 @@ void smi_handler(u32 smm_revision)
}
/* Call chipset specific SMI handlers. */
- if (cpu_smi_handler)
- cpu_smi_handler(node, &state_save);
- if (northbridge_smi_handler)
- northbridge_smi_handler(node, &state_save);
- if (southbridge_smi_handler)
- southbridge_smi_handler(node, &state_save);
+ cpu_smi_handler(node, &state_save);
+ northbridge_smi_handler(node, &state_save);
+ southbridge_smi_handler(node, &state_save);
smi_restore_pci_address();
@@ -215,3 +212,15 @@ void smi_handler(u32 smm_revision)
/* De-assert SMI# signal to allow another SMI */
smi_set_eos();
}
+
+/* Provide a default implementation for all weak handlers so that relocation
+ * entries in the modules make sense. Without default implementations the
+ * weak relocations w/o a symbol have a 0 address which is where the modules
+ * are linked at. */
+int __attribute__((weak)) mainboard_io_trap_handler(int smif) { return 0; }
+void __attribute__((weak)) cpu_smi_handler(unsigned int node, smm_state_save_area_t *state_save) {}
+void __attribute__((weak)) northbridge_smi_handler(unsigned int node, smm_state_save_area_t *state_save) {}
+void __attribute__((weak)) southbridge_smi_handler(unsigned int node, smm_state_save_area_t *state_save) {}
+void __attribute__((weak)) mainboard_smi_gpi(u32 gpi_sts) {}
+int __attribute__((weak)) mainboard_smi_apmc(u8 data) { return 0; }
+void __attribute__((weak)) mainboard_smi_sleep(u8 slp_typ) {}