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-rw-r--r--arch/powerpc/include/asm/exception-64s.h87
-rw-r--r--arch/powerpc/kernel/exceptions-64s.S18
2 files changed, 51 insertions, 54 deletions
diff --git a/arch/powerpc/include/asm/exception-64s.h b/arch/powerpc/include/asm/exception-64s.h
index 82a1c0576fbb..3b0e736481fc 100644
--- a/arch/powerpc/include/asm/exception-64s.h
+++ b/arch/powerpc/include/asm/exception-64s.h
@@ -174,8 +174,33 @@
ori reg,reg,(ABS_ADDR(label))@l; \
addis reg,reg,(ABS_ADDR(label))@h
+.macro EXCEPTION_PROLOG_2_REAL label, hsrr, set_ri
+ ld r10,PACAKMSR(r13) /* get MSR value for kernel */
+ .if ! \set_ri
+ xori r10,r10,MSR_RI /* Clear MSR_RI */
+ .endif
+ .if \hsrr
+ mfspr r11,SPRN_HSRR0 /* save HSRR0 */
+ .else
+ mfspr r11,SPRN_SRR0 /* save SRR0 */
+ .endif
+ LOAD_HANDLER(r12, \label\())
+ .if \hsrr
+ mtspr SPRN_HSRR0,r12
+ mfspr r12,SPRN_HSRR1 /* and HSRR1 */
+ mtspr SPRN_HSRR1,r10
+ HRFI_TO_KERNEL
+ .else
+ mtspr SPRN_SRR0,r12
+ mfspr r12,SPRN_SRR1 /* and SRR1 */
+ mtspr SPRN_SRR1,r10
+ RFI_TO_KERNEL
+ .endif
+ b . /* prevent speculative execution */
+.endm
+
+.macro EXCEPTION_PROLOG_2_VIRT label, hsrr
#ifdef CONFIG_RELOCATABLE
-.macro EXCEPTION_PROLOG_2_RELON label, hsrr
.if \hsrr
mfspr r11,SPRN_HSRR0 /* save HSRR0 */
.else
@@ -191,10 +216,7 @@
li r10,MSR_RI
mtmsrd r10,1 /* Set RI (EE=0) */
bctr
-.endm
#else
-/* If not relocatable, we can jump directly -- and save messing with LR */
-.macro EXCEPTION_PROLOG_2_RELON label, hsrr
.if \hsrr
mfspr r11,SPRN_HSRR0 /* save HSRR0 */
mfspr r12,SPRN_HSRR1 /* and HSRR1 */
@@ -205,19 +227,19 @@
li r10,MSR_RI
mtmsrd r10,1 /* Set RI (EE=0) */
b \label
-.endm
#endif
+.endm
/*
* As EXCEPTION_PROLOG(), except we've already got relocation on so no need to
- * rfid. Save LR in case we're CONFIG_RELOCATABLE, in which case
- * EXCEPTION_PROLOG_2_RELON will be using LR.
+ * rfid. Save CTR in case we're CONFIG_RELOCATABLE, in which case
+ * EXCEPTION_PROLOG_2_VIRT will be using CTR.
*/
#define EXCEPTION_RELON_PROLOG(area, label, hsrr, extra, vec) \
SET_SCRATCH0(r13); /* save r13 */ \
EXCEPTION_PROLOG_0(area); \
EXCEPTION_PROLOG_1(area, extra, vec); \
- EXCEPTION_PROLOG_2_RELON label, hsrr
+ EXCEPTION_PROLOG_2_VIRT label, hsrr
/* Exception register prefixes */
#define EXC_HV 1
@@ -323,36 +345,11 @@ END_FTR_SECTION_NESTED(ftr,ftr,943)
#define EXCEPTION_PROLOG_1(area, extra, vec) \
_EXCEPTION_PROLOG_1(area, extra, vec)
-.macro EXCEPTION_PROLOG_2 label, hsrr, set_ri
- ld r10,PACAKMSR(r13) /* get MSR value for kernel */
- .if ! \set_ri
- xori r10,r10,MSR_RI /* Clear MSR_RI */
- .endif
- .if \hsrr
- mfspr r11,SPRN_HSRR0 /* save HSRR0 */
- .else
- mfspr r11,SPRN_SRR0 /* save SRR0 */
- .endif
- LOAD_HANDLER(r12,\label\())
- .if \hsrr
- mtspr SPRN_HSRR0,r12
- mfspr r12,SPRN_HSRR1 /* and HSRR1 */
- mtspr SPRN_HSRR1,r10
- HRFI_TO_KERNEL
- .else
- mtspr SPRN_SRR0,r12
- mfspr r12,SPRN_SRR1 /* and SRR1 */
- mtspr SPRN_SRR1,r10
- RFI_TO_KERNEL
- .endif
- b . /* prevent speculative execution */
-.endm
-
#define EXCEPTION_PROLOG(area, label, h, extra, vec) \
SET_SCRATCH0(r13); /* save r13 */ \
EXCEPTION_PROLOG_0(area); \
EXCEPTION_PROLOG_1(area, extra, vec); \
- EXCEPTION_PROLOG_2 label, h, 1
+ EXCEPTION_PROLOG_2_REAL label, h, 1
#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
/*
@@ -421,7 +418,7 @@ END_FTR_SECTION_NESTED(ftr,ftr,943)
#define EXCEPTION_PROLOG_NORI(area, label, h, extra, vec) \
EXCEPTION_PROLOG_0(area); \
EXCEPTION_PROLOG_1(area, extra, vec); \
- EXCEPTION_PROLOG_2 label, h, 0
+ EXCEPTION_PROLOG_2_REAL label, h, 0
#ifdef CONFIG_KVM_BOOK3S_64_HANDLER
.macro KVMTEST hsrr, n
@@ -578,14 +575,14 @@ END_FTR_SECTION_NESTED(ftr,ftr,943)
#define STD_EXCEPTION_OOL(vec, label) \
EXCEPTION_PROLOG_1(PACA_EXGEN, KVMTEST_PR, vec); \
- EXCEPTION_PROLOG_2 label, EXC_STD, 1
+ EXCEPTION_PROLOG_2_REAL label, EXC_STD, 1
#define STD_EXCEPTION_HV(loc, vec, label) \
EXCEPTION_PROLOG(PACA_EXGEN, label, EXC_HV, KVMTEST_HV, vec)
#define STD_EXCEPTION_HV_OOL(vec, label) \
EXCEPTION_PROLOG_1(PACA_EXGEN, KVMTEST_HV, vec); \
- EXCEPTION_PROLOG_2 label, EXC_HV, 1
+ EXCEPTION_PROLOG_2_REAL label, EXC_HV, 1
#define STD_RELON_EXCEPTION(loc, vec, label) \
/* No guest interrupts come through here */ \
@@ -593,14 +590,14 @@ END_FTR_SECTION_NESTED(ftr,ftr,943)
#define STD_RELON_EXCEPTION_OOL(vec, label) \
EXCEPTION_PROLOG_1(PACA_EXGEN, NOTEST, vec); \
- EXCEPTION_PROLOG_2_RELON label, EXC_STD
+ EXCEPTION_PROLOG_2_VIRT label, EXC_STD
#define STD_RELON_EXCEPTION_HV(loc, vec, label) \
EXCEPTION_RELON_PROLOG(PACA_EXGEN, label, EXC_HV, KVMTEST_HV, vec)
#define STD_RELON_EXCEPTION_HV_OOL(vec, label) \
EXCEPTION_PROLOG_1(PACA_EXGEN, KVMTEST_HV, vec); \
- EXCEPTION_PROLOG_2_RELON label, EXC_HV
+ EXCEPTION_PROLOG_2_VIRT label, EXC_HV
.macro SOFTEN_TEST hsrr, vec, bitmask
lbz r10, PACAIRQSOFTMASK(r13)
@@ -649,41 +646,41 @@ END_FTR_SECTION_NESTED(ftr,ftr,943)
SET_SCRATCH0(r13); /* save r13 */ \
EXCEPTION_PROLOG_0(PACA_EXGEN); \
MASKABLE_EXCEPTION_PROLOG_1(PACA_EXGEN, extra, vec, bitmask); \
- EXCEPTION_PROLOG_2 label, h, 1
+ EXCEPTION_PROLOG_2_REAL label, h, 1
#define MASKABLE_EXCEPTION(vec, label, bitmask) \
__MASKABLE_EXCEPTION(vec, label, EXC_STD, SOFTEN_TEST_PR, bitmask)
#define MASKABLE_EXCEPTION_OOL(vec, label, bitmask) \
MASKABLE_EXCEPTION_PROLOG_1(PACA_EXGEN, SOFTEN_TEST_PR, vec, bitmask);\
- EXCEPTION_PROLOG_2 label, EXC_STD, 1
+ EXCEPTION_PROLOG_2_REAL label, EXC_STD, 1
#define MASKABLE_EXCEPTION_HV(vec, label, bitmask) \
__MASKABLE_EXCEPTION(vec, label, EXC_HV, SOFTEN_TEST_HV, bitmask)
#define MASKABLE_EXCEPTION_HV_OOL(vec, label, bitmask) \
MASKABLE_EXCEPTION_PROLOG_1(PACA_EXGEN, SOFTEN_TEST_HV, vec, bitmask);\
- EXCEPTION_PROLOG_2 label, EXC_HV, 1
+ EXCEPTION_PROLOG_2_REAL label, EXC_HV, 1
#define __MASKABLE_RELON_EXCEPTION(vec, label, h, extra, bitmask) \
SET_SCRATCH0(r13); /* save r13 */ \
EXCEPTION_PROLOG_0(PACA_EXGEN); \
MASKABLE_EXCEPTION_PROLOG_1(PACA_EXGEN, extra, vec, bitmask); \
- EXCEPTION_PROLOG_2_RELON label, h
+ EXCEPTION_PROLOG_2_VIRT label, h
#define MASKABLE_RELON_EXCEPTION(vec, label, bitmask) \
__MASKABLE_RELON_EXCEPTION(vec, label, EXC_STD, SOFTEN_NOTEST_PR, bitmask)
#define MASKABLE_RELON_EXCEPTION_OOL(vec, label, bitmask) \
MASKABLE_EXCEPTION_PROLOG_1(PACA_EXGEN, SOFTEN_NOTEST_PR, vec, bitmask);\
- EXCEPTION_PROLOG_2 label, EXC_STD, 1
+ EXCEPTION_PROLOG_2_REAL label, EXC_STD, 1
#define MASKABLE_RELON_EXCEPTION_HV(vec, label, bitmask) \
__MASKABLE_RELON_EXCEPTION(vec, label, EXC_HV, SOFTEN_TEST_HV, bitmask)
#define MASKABLE_RELON_EXCEPTION_HV_OOL(vec, label, bitmask) \
MASKABLE_EXCEPTION_PROLOG_1(PACA_EXGEN, SOFTEN_TEST_HV, vec, bitmask);\
- EXCEPTION_PROLOG_2_RELON label, EXC_HV
+ EXCEPTION_PROLOG_2_VIRT label, EXC_HV
/*
* Our exception common code can be passed various "additions"
diff --git a/arch/powerpc/kernel/exceptions-64s.S b/arch/powerpc/kernel/exceptions-64s.S
index f562b9a83b01..38e21d671c3b 100644
--- a/arch/powerpc/kernel/exceptions-64s.S
+++ b/arch/powerpc/kernel/exceptions-64s.S
@@ -356,7 +356,7 @@ machine_check_pSeries_0:
* nested machine check corrupts it. machine_check_common enables
* MSR_RI.
*/
- EXCEPTION_PROLOG_2 machine_check_common, EXC_STD, 0
+ EXCEPTION_PROLOG_2_REAL machine_check_common, EXC_STD, 0
TRAMP_KVM_SKIP(PACA_EXMC, 0x200)
@@ -598,7 +598,7 @@ EXCEPTION_PROLOG_1(PACA_EXGEN, KVMTEST_PR, 0x300)
mfspr r11,SPRN_DSISR
std r10,PACA_EXGEN+EX_DAR(r13)
stw r11,PACA_EXGEN+EX_DSISR(r13)
-EXCEPTION_PROLOG_2 data_access_common, EXC_STD, 1
+EXCEPTION_PROLOG_2_REAL data_access_common, EXC_STD, 1
EXC_VIRT_BEGIN(data_access, 0x4300, 0x80)
SET_SCRATCH0(r13) /* save r13 */
@@ -608,7 +608,7 @@ EXCEPTION_PROLOG_1(PACA_EXGEN, NOTEST, 0x300)
mfspr r11,SPRN_DSISR
std r10,PACA_EXGEN+EX_DAR(r13)
stw r11,PACA_EXGEN+EX_DSISR(r13)
-EXCEPTION_PROLOG_2_RELON data_access_common, EXC_STD
+EXCEPTION_PROLOG_2_VIRT data_access_common, EXC_STD
EXC_VIRT_END(data_access, 0x4300, 0x80)
TRAMP_KVM_SKIP(PACA_EXGEN, 0x300)
@@ -645,7 +645,7 @@ TRAMP_REAL_BEGIN(tramp_real_data_access_slb)
EXCEPTION_PROLOG_1(PACA_EXSLB, KVMTEST_PR, 0x380)
mfspr r10,SPRN_DAR
std r10,PACA_EXSLB+EX_DAR(r13)
-EXCEPTION_PROLOG_2 data_access_slb_common, EXC_STD, 1
+EXCEPTION_PROLOG_2_REAL data_access_slb_common, EXC_STD, 1
EXC_VIRT_BEGIN(data_access_slb, 0x4380, 0x80)
SET_SCRATCH0(r13) /* save r13 */
@@ -653,7 +653,7 @@ EXCEPTION_PROLOG_0(PACA_EXSLB)
EXCEPTION_PROLOG_1(PACA_EXSLB, NOTEST, 0x380)
mfspr r10,SPRN_DAR
std r10,PACA_EXSLB+EX_DAR(r13)
-EXCEPTION_PROLOG_2_RELON data_access_slb_common, EXC_STD
+EXCEPTION_PROLOG_2_VIRT data_access_slb_common, EXC_STD
EXC_VIRT_END(data_access_slb, 0x4380, 0x80)
TRAMP_KVM_SKIP(PACA_EXSLB, 0x380)
@@ -774,7 +774,7 @@ EXCEPTION_PROLOG_1(PACA_EXGEN, KVMTEST_PR, 0x600)
mfspr r11,SPRN_DSISR
std r10,PACA_EXGEN+EX_DAR(r13)
stw r11,PACA_EXGEN+EX_DSISR(r13)
-EXCEPTION_PROLOG_2 alignment_common, EXC_STD, 1
+EXCEPTION_PROLOG_2_REAL alignment_common, EXC_STD, 1
EXC_REAL_END(alignment, 0x600, 0x100)
EXC_VIRT_BEGIN(alignment, 0x4600, 0x100)
@@ -785,7 +785,7 @@ EXCEPTION_PROLOG_1(PACA_EXGEN, NOTEST, 0x600)
mfspr r11,SPRN_DSISR
std r10,PACA_EXGEN+EX_DAR(r13)
stw r11,PACA_EXGEN+EX_DSISR(r13)
-EXCEPTION_PROLOG_2_RELON alignment_common, EXC_STD
+EXCEPTION_PROLOG_2_VIRT alignment_common, EXC_STD
EXC_VIRT_END(alignment, 0x4600, 0x100)
TRAMP_KVM(PACA_EXGEN, 0x600)
@@ -1320,7 +1320,7 @@ EXC_REAL_BEGIN(denorm_exception_hv, 0x1500, 0x100)
#endif
KVMTEST_HV(0x1500)
- EXCEPTION_PROLOG_2 denorm_common, EXC_HV, 1
+ EXCEPTION_PROLOG_2_REAL denorm_common, EXC_HV, 1
EXC_REAL_END(denorm_exception_hv, 0x1500, 0x100)
#ifdef CONFIG_PPC_DENORMALISATION
@@ -1442,7 +1442,7 @@ EXC_VIRT_NONE(0x5800, 0x100)
std r12,PACA_EXGEN+EX_R12(r13); \
GET_SCRATCH0(r10); \
std r10,PACA_EXGEN+EX_R13(r13); \
- EXCEPTION_PROLOG_2 soft_nmi_common, _H, 1
+ EXCEPTION_PROLOG_2_REAL soft_nmi_common, _H, 1
/*
* Branch to soft_nmi_interrupt using the emergency stack. The emergency
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-14 23:56:48 +0000