powerpc: Add more exception trampolines for hypervisor exceptions

This makes back traces and profiles easier to read.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

diff --git a/arch/powerpc/kernel/exceptions-64s.S b/arch/powerpc/kernel/exceptions-64s.S
index aa73bf940849beca8bbf3c988373da933ce7ccda..17f761dccb7a37a7da680b9acb4a352c8a10cf7e 100644 (file)
--- a/arch/powerpc/kernel/exceptions-64s.S
+++ b/arch/powerpc/kernel/exceptions-64s.S
@@ -293,27 +293,31 @@ system_call_pSeries:
         * out of line to handle them
         */
        . = 0xe00
-hv_exception_trampoline:
+hv_data_storage_trampoline:
        SET_SCRATCH0(r13)
        EXCEPTION_PROLOG_0(PACA_EXGEN)
        b       h_data_storage_hv
 
        . = 0xe20
+hv_instr_storage_trampoline:
        SET_SCRATCH0(r13)
        EXCEPTION_PROLOG_0(PACA_EXGEN)
        b       h_instr_storage_hv
 
        . = 0xe40
+emulation_assist_trampoline:
        SET_SCRATCH0(r13)
        EXCEPTION_PROLOG_0(PACA_EXGEN)
        b       emulation_assist_hv
 
        . = 0xe60
+hv_exception_trampoline:
        SET_SCRATCH0(r13)
        EXCEPTION_PROLOG_0(PACA_EXGEN)
        b       hmi_exception_hv
 
        . = 0xe80
+hv_doorbell_trampoline:
        SET_SCRATCH0(r13)
        EXCEPTION_PROLOG_0(PACA_EXGEN)
        b       h_doorbell_hv
@@ -809,6 +813,7 @@ system_call_relon_pSeries:
        b       .       /* Can't happen, see v2.07 Book III-S section 6.5 */
 
        . = 0x4e40
+emulation_assist_relon_trampoline:
        SET_SCRATCH0(r13)
        EXCEPTION_PROLOG_0(PACA_EXGEN)
        b       emulation_assist_relon_hv
@@ -817,6 +822,7 @@ system_call_relon_pSeries:
        b       .       /* Can't happen, see v2.07 Book III-S section 6.5 */
 
        . = 0x4e80
+h_doorbell_relon_trampoline:
        SET_SCRATCH0(r13)
        EXCEPTION_PROLOG_0(PACA_EXGEN)
        b       h_doorbell_relon_hv