leandrof/linux
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

powerpc/64s/exception: remove H concatenation for EXC_HV variants

Browse Source 
Replace all instances of this with gas macros that test the hsrr
parameter and use the appropriate register names / labels.

No generated code change.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
[mpe: Remove extraneous 2nd check for 0xea0 in SOFTEN_TEST]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Nicholas Piggin 2019-06-22 23:15:11 +10:00 committed by Michael Ellerman
parent 1efd8caa9a
commit 4508a74a63
3 changed files with 250 additions and 181 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

326
arch/powerpc/include/asm/exception-64s.h
View File

@ -67,6 +67,8 @@
*/
#define EX_R3 EX_DAR
#ifdef __ASSEMBLY__
#define STF_ENTRY_BARRIER_SLOT \
STF_ENTRY_BARRIER_FIXUP_SECTION; \
nop; \
@ -148,38 +150,6 @@
hrfid; \
b hrfi_flush_fallback
#ifdef CONFIG_RELOCATABLE
#define __EXCEPTION_PROLOG_2_RELON(label, h) \
mfspr r11,SPRN_##h##SRR0; /* save SRR0 */ \
LOAD_HANDLER(r12,label); \
mtctr r12; \
mfspr r12,SPRN_##h##SRR1; /* and SRR1 */ \
li r10,MSR_RI; \
mtmsrd r10,1; /* Set RI (EE=0) */ \
bctr;
#else
/* If not relocatable, we can jump directly -- and save messing with LR */
#define __EXCEPTION_PROLOG_2_RELON(label, h) \
mfspr r11,SPRN_##h##SRR0; /* save SRR0 */ \
mfspr r12,SPRN_##h##SRR1; /* and SRR1 */ \
li r10,MSR_RI; \
mtmsrd r10,1; /* Set RI (EE=0) */ \
b label;
#endif
#define EXCEPTION_PROLOG_2_RELON(label, h) \
__EXCEPTION_PROLOG_2_RELON(label, h)
/*
* 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.
*/
#define EXCEPTION_RELON_PROLOG(area, label, h, extra, vec) \
SET_SCRATCH0(r13); /* save r13 */ \
EXCEPTION_PROLOG_0(area); \
EXCEPTION_PROLOG_1(area, extra, vec); \
EXCEPTION_PROLOG_2_RELON(label, h)
/*
* We're short on space and time in the exception prolog, so we can't
* use the normal LOAD_REG_IMMEDIATE macro to load the address of label.
@ -204,9 +174,54 @@
ori reg,reg,(ABS_ADDR(label))@l; \
addis reg,reg,(ABS_ADDR(label))@h
#ifdef CONFIG_RELOCATABLE
.macro EXCEPTION_PROLOG_2_RELON label, hsrr
.if \hsrr
mfspr r11,SPRN_HSRR0 /* save HSRR0 */
.else
mfspr r11,SPRN_SRR0 /* save SRR0 */
.endif
LOAD_HANDLER(r12, \label\())
mtctr r12
.if \hsrr
mfspr r12,SPRN_HSRR1 /* and HSRR1 */
.else
mfspr r12,SPRN_SRR1 /* and HSRR1 */
.endif
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 */
.else
mfspr r11,SPRN_SRR0 /* save SRR0 */
mfspr r12,SPRN_SRR1 /* and SRR1 */
.endif
li r10,MSR_RI
mtmsrd r10,1 /* Set RI (EE=0) */
b \label
.endm
#endif
/*
* 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.
*/
#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 register prefixes */
#define EXC_HV H
#define EXC_STD
#define EXC_HV 1
#define EXC_STD 0
#if defined(CONFIG_RELOCATABLE)
/*
@ -308,43 +323,57 @@ END_FTR_SECTION_NESTED(ftr,ftr,943)
#define EXCEPTION_PROLOG_1(area, extra, vec) \
_EXCEPTION_PROLOG_1(area, extra, vec)
#define __EXCEPTION_PROLOG_2(label, h) \
ld r10,PACAKMSR(r13); /* get MSR value for kernel */ \
mfspr r11,SPRN_##h##SRR0; /* save SRR0 */ \
LOAD_HANDLER(r12,label); \
mtspr SPRN_##h##SRR0,r12; \
mfspr r12,SPRN_##h##SRR1; /* and SRR1 */ \
mtspr SPRN_##h##SRR1,r10; \
h##RFI_TO_KERNEL; \
.macro EXCEPTION_PROLOG_2 label, hsrr
ld r10,PACAKMSR(r13) /* get MSR value for kernel */
.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 */
#define EXCEPTION_PROLOG_2(label, h) \
__EXCEPTION_PROLOG_2(label, h)
.endm
/* _NORI variant keeps MSR_RI clear */
#define __EXCEPTION_PROLOG_2_NORI(label, h) \
ld r10,PACAKMSR(r13); /* get MSR value for kernel */ \
xori r10,r10,MSR_RI; /* Clear MSR_RI */ \
mfspr r11,SPRN_##h##SRR0; /* save SRR0 */ \
LOAD_HANDLER(r12,label); \
mtspr SPRN_##h##SRR0,r12; \
mfspr r12,SPRN_##h##SRR1; /* and SRR1 */ \
mtspr SPRN_##h##SRR1,r10; \
h##RFI_TO_KERNEL; \
.macro EXCEPTION_PROLOG_2_NORI label, hsrr
ld r10,PACAKMSR(r13) /* get MSR value for kernel */
xori r10,r10,MSR_RI /* Clear MSR_RI */
.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 */
#define EXCEPTION_PROLOG_2_NORI(label, h) \
__EXCEPTION_PROLOG_2_NORI(label, h)
.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)
#define __KVMTEST(h, n) \
lbz r10,HSTATE_IN_GUEST(r13); \
cmpwi r10,0; \
bne do_kvm_##h##n
EXCEPTION_PROLOG_2 label, h
#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
/*
@ -413,52 +442,66 @@ 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_NORI(label, h)
#define __KVM_HANDLER(area, h, n) \
BEGIN_FTR_SECTION_NESTED(947) \
ld r10,area+EX_CFAR(r13); \
std r10,HSTATE_CFAR(r13); \
END_FTR_SECTION_NESTED(CPU_FTR_CFAR,CPU_FTR_CFAR,947); \
BEGIN_FTR_SECTION_NESTED(948) \
ld r10,area+EX_PPR(r13); \
std r10,HSTATE_PPR(r13); \
END_FTR_SECTION_NESTED(CPU_FTR_HAS_PPR,CPU_FTR_HAS_PPR,948); \
ld r10,area+EX_R10(r13); \
std r12,HSTATE_SCRATCH0(r13); \
sldi r12,r9,32; \
ori r12,r12,(n); \
/* This reloads r9 before branching to kvmppc_interrupt */ \
__BRANCH_TO_KVM_EXIT(area, kvmppc_interrupt)
#define __KVM_HANDLER_SKIP(area, h, n) \
cmpwi r10,KVM_GUEST_MODE_SKIP; \
beq 89f; \
BEGIN_FTR_SECTION_NESTED(948) \
ld r10,area+EX_PPR(r13); \
std r10,HSTATE_PPR(r13); \
END_FTR_SECTION_NESTED(CPU_FTR_HAS_PPR,CPU_FTR_HAS_PPR,948); \
ld r10,area+EX_R10(r13); \
std r12,HSTATE_SCRATCH0(r13); \
sldi r12,r9,32; \
ori r12,r12,(n); \
/* This reloads r9 before branching to kvmppc_interrupt */ \
__BRANCH_TO_KVM_EXIT(area, kvmppc_interrupt); \
89: mtocrf 0x80,r9; \
ld r9,area+EX_R9(r13); \
ld r10,area+EX_R10(r13); \
b kvmppc_skip_##h##interrupt
EXCEPTION_PROLOG_2_NORI label, h
#ifdef CONFIG_KVM_BOOK3S_64_HANDLER
#define KVMTEST(h, n) __KVMTEST(h, n)
#define KVM_HANDLER(area, h, n) __KVM_HANDLER(area, h, n)
#define KVM_HANDLER_SKIP(area, h, n) __KVM_HANDLER_SKIP(area, h, n)
.macro KVMTEST hsrr, n
lbz r10,HSTATE_IN_GUEST(r13)
cmpwi r10,0
.if \hsrr
bne do_kvm_H\n
.else
bne do_kvm_\n
.endif
.endm
.macro KVM_HANDLER area, hsrr, n
BEGIN_FTR_SECTION_NESTED(947)
ld r10,\area+EX_CFAR(r13)
std r10,HSTATE_CFAR(r13)
END_FTR_SECTION_NESTED(CPU_FTR_CFAR,CPU_FTR_CFAR,947)
BEGIN_FTR_SECTION_NESTED(948)
ld r10,\area+EX_PPR(r13)
std r10,HSTATE_PPR(r13)
END_FTR_SECTION_NESTED(CPU_FTR_HAS_PPR,CPU_FTR_HAS_PPR,948)
ld r10,\area+EX_R10(r13)
std r12,HSTATE_SCRATCH0(r13)
sldi r12,r9,32
ori r12,r12,(\n)
/* This reloads r9 before branching to kvmppc_interrupt */
__BRANCH_TO_KVM_EXIT(\area, kvmppc_interrupt)
.endm
.macro KVM_HANDLER_SKIP area, hsrr, n
cmpwi r10,KVM_GUEST_MODE_SKIP
beq 89f
BEGIN_FTR_SECTION_NESTED(948)
ld r10,\area+EX_PPR(r13)
std r10,HSTATE_PPR(r13)
END_FTR_SECTION_NESTED(CPU_FTR_HAS_PPR,CPU_FTR_HAS_PPR,948)
ld r10,\area+EX_R10(r13)
std r12,HSTATE_SCRATCH0(r13)
sldi r12,r9,32
ori r12,r12,(\n)
/* This reloads r9 before branching to kvmppc_interrupt */
__BRANCH_TO_KVM_EXIT(\area, kvmppc_interrupt)
89: mtocrf 0x80,r9
ld r9,\area+EX_R9(r13)
ld r10,\area+EX_R10(r13)
.if \hsrr
b kvmppc_skip_Hinterrupt
.else
b kvmppc_skip_interrupt
.endif
.endm
#else
#define KVMTEST(h, n)
#define KVM_HANDLER(area, h, n)
#define KVM_HANDLER_SKIP(area, h, n)
.macro KVMTEST hsrr, n
.endm
.macro KVM_HANDLER area, hsrr, n
.endm
.macro KVM_HANDLER_SKIP area, hsrr, n
.endm
#endif
#define NOTEST(n)
@ -556,14 +599,14 @@ 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)
EXCEPTION_PROLOG_2 label, EXC_STD
#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)
EXCEPTION_PROLOG_2 label, EXC_HV
#define STD_RELON_EXCEPTION(loc, vec, label) \
/* No guest interrupts come through here */ \
@ -571,88 +614,97 @@ 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_RELON 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_RELON label, EXC_HV
/* This associate vector numbers with bits in paca->irq_happened */
#define SOFTEN_VALUE_0x500 PACA_IRQ_EE
#define SOFTEN_VALUE_0x900 PACA_IRQ_DEC
#define SOFTEN_VALUE_0xa00 PACA_IRQ_DBELL
#define SOFTEN_VALUE_0xe80 PACA_IRQ_DBELL
#define SOFTEN_VALUE_0xe60 PACA_IRQ_HMI
#define SOFTEN_VALUE_0xea0 PACA_IRQ_EE
#define SOFTEN_VALUE_0xf00 PACA_IRQ_PMI
.macro SOFTEN_TEST hsrr, vec, bitmask
lbz r10, PACAIRQSOFTMASK(r13)
andi. r10, r10, \bitmask
/* This associates vector numbers with bits in paca->irq_happened */
.if \vec == 0x500 || \vec == 0xea0
li r10, PACA_IRQ_EE
.elseif \vec == 0x900
li r10, PACA_IRQ_DEC
.elseif \vec == 0xa00 || \vec == 0xe80
li r10, PACA_IRQ_DBELL
.elseif \vec == 0xe60
li r10, PACA_IRQ_HMI
.elseif \vec == 0xf00
li r10, PACA_IRQ_PMI
.else
.abort "Bad maskable vector"
.endif
#define __SOFTEN_TEST(h, vec, bitmask) \
lbz r10,PACAIRQSOFTMASK(r13); \
andi. r10,r10,bitmask; \
li r10,SOFTEN_VALUE_##vec; \
bne masked_##h##interrupt
#define _SOFTEN_TEST(h, vec, bitmask) __SOFTEN_TEST(h, vec, bitmask)
.if \hsrr
bne masked_Hinterrupt
.else
bne masked_interrupt
.endif
.endm
#define SOFTEN_TEST_PR(vec, bitmask) \
KVMTEST(EXC_STD, vec); \
_SOFTEN_TEST(EXC_STD, vec, bitmask)
KVMTEST EXC_STD, vec ; \
SOFTEN_TEST EXC_STD, vec, bitmask
#define SOFTEN_TEST_HV(vec, bitmask) \
KVMTEST(EXC_HV, vec); \
_SOFTEN_TEST(EXC_HV, vec, bitmask)
KVMTEST EXC_HV, vec ; \
SOFTEN_TEST EXC_HV, vec, bitmask
#define KVMTEST_PR(vec) \
KVMTEST(EXC_STD, vec)
KVMTEST EXC_STD, vec
#define KVMTEST_HV(vec) \
KVMTEST(EXC_HV, vec)
KVMTEST EXC_HV, vec
#define SOFTEN_NOTEST_PR(vec, bitmask) _SOFTEN_TEST(EXC_STD, vec, bitmask)
#define SOFTEN_NOTEST_HV(vec, bitmask) _SOFTEN_TEST(EXC_HV, vec, bitmask)
#define SOFTEN_NOTEST_PR(vec, bitmask) SOFTEN_TEST EXC_STD, vec, bitmask
#define SOFTEN_NOTEST_HV(vec, bitmask) SOFTEN_TEST EXC_HV, vec, bitmask
#define __MASKABLE_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(label, h)
EXCEPTION_PROLOG_2 label, h
#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)
EXCEPTION_PROLOG_2 label, EXC_STD
#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)
EXCEPTION_PROLOG_2 label, EXC_HV
#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_RELON 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)
EXCEPTION_PROLOG_2 label, EXC_STD
#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_RELON label, EXC_HV
/*
* Our exception common code can be passed various "additions"
@ -731,4 +783,6 @@ END_FTR_SECTION_IFSET(CPU_FTR_CAN_NAP)
#define FINISH_NAP
#endif
#endif /* __ASSEMBLY__ */
#endif /* _ASM_POWERPC_EXCEPTION_H */

8
arch/powerpc/include/asm/head-64.h
View File

@ -387,22 +387,22 @@ name:
#define TRAMP_KVM(area, n) \
TRAMP_KVM_BEGIN(do_kvm_##n); \
KVM_HANDLER(area, EXC_STD, n); \
KVM_HANDLER area, EXC_STD, n
#define TRAMP_KVM_SKIP(area, n) \
TRAMP_KVM_BEGIN(do_kvm_##n); \
KVM_HANDLER_SKIP(area, EXC_STD, n); \
KVM_HANDLER_SKIP area, EXC_STD, n
/*
* HV variant exceptions get the 0x2 bit added to their trap number.
*/
#define TRAMP_KVM_HV(area, n) \
TRAMP_KVM_BEGIN(do_kvm_H##n); \
KVM_HANDLER(area, EXC_HV, n + 0x2); \
KVM_HANDLER area, EXC_HV, n + 0x2
#define TRAMP_KVM_HV_SKIP(area, n) \
TRAMP_KVM_BEGIN(do_kvm_H##n); \
KVM_HANDLER_SKIP(area, EXC_HV, n + 0x2); \
KVM_HANDLER_SKIP area, EXC_HV, n + 0x2
#define EXC_COMMON(name, realvec, hdlr) \
EXC_COMMON_BEGIN(name); \

97
arch/powerpc/kernel/exceptions-64s.S
View File

@ -356,7 +356,7 @@ machine_check_pSeries_0:
* nested machine check corrupts it. machine_check_common enables
* MSR_RI.
*/
EXCEPTION_PROLOG_2_NORI(machine_check_common, EXC_STD)
EXCEPTION_PROLOG_2_NORI machine_check_common, EXC_STD
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)
EXCEPTION_PROLOG_2 data_access_common, EXC_STD
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_RELON 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)
EXCEPTION_PROLOG_2 data_access_slb_common, EXC_STD
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_RELON 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)
EXCEPTION_PROLOG_2 alignment_common, EXC_STD
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_RELON alignment_common, EXC_STD
EXC_VIRT_END(alignment, 0x4600, 0x100)
TRAMP_KVM(PACA_EXGEN, 0x600)
@ -1053,7 +1053,7 @@ TRAMP_KVM_BEGIN(do_kvm_0xc00)
SET_SCRATCH0(r10)
std r9,PACA_EXGEN+EX_R9(r13)
mfcr r9
KVM_HANDLER(PACA_EXGEN, EXC_STD, 0xc00)
KVM_HANDLER PACA_EXGEN, EXC_STD, 0xc00
#endif
@ -1320,7 +1320,7 @@ EXC_REAL_BEGIN(denorm_exception_hv, 0x1500, 0x100)
#endif
KVMTEST_HV(0x1500)
EXCEPTION_PROLOG_2(denorm_common, EXC_HV)
EXCEPTION_PROLOG_2 denorm_common, EXC_HV
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)
EXCEPTION_PROLOG_2 soft_nmi_common, _H
/*
* Branch to soft_nmi_interrupt using the emergency stack. The emergency
@ -1477,35 +1477,50 @@ EXC_COMMON_BEGIN(soft_nmi_common)
* - Else it is one of PACA_IRQ_MUST_HARD_MASK, so hard disable and return.
* This is called with r10 containing the value to OR to the paca field.
*/
#define MASKED_INTERRUPT(_H) \
masked_##_H##interrupt: \
std r11,PACA_EXGEN+EX_R11(r13); \
lbz r11,PACAIRQHAPPENED(r13); \
or r11,r11,r10; \
stb r11,PACAIRQHAPPENED(r13); \
cmpwi r10,PACA_IRQ_DEC; \
bne 1f; \
lis r10,0x7fff; \
ori r10,r10,0xffff; \
mtspr SPRN_DEC,r10; \
b MASKED_DEC_HANDLER_LABEL; \
1: andi. r10,r10,PACA_IRQ_MUST_HARD_MASK; \
beq 2f; \
mfspr r10,SPRN_##_H##SRR1; \
xori r10,r10,MSR_EE; /* clear MSR_EE */ \
mtspr SPRN_##_H##SRR1,r10; \
ori r11,r11,PACA_IRQ_HARD_DIS; \
stb r11,PACAIRQHAPPENED(r13); \
2: /* done */ \
mtcrf 0x80,r9; \
std r1,PACAR1(r13); \
ld r9,PACA_EXGEN+EX_R9(r13); \
ld r10,PACA_EXGEN+EX_R10(r13); \
ld r11,PACA_EXGEN+EX_R11(r13); \
/* returns to kernel where r13 must be set up, so don't restore it */ \
##_H##RFI_TO_KERNEL; \
b .; \
MASKED_DEC_HANDLER(_H)
.macro MASKED_INTERRUPT hsrr
.if \hsrr
masked_Hinterrupt:
.else
masked_interrupt:
.endif
std r11,PACA_EXGEN+EX_R11(r13)
lbz r11,PACAIRQHAPPENED(r13)
or r11,r11,r10
stb r11,PACAIRQHAPPENED(r13)
cmpwi r10,PACA_IRQ_DEC
bne 1f
lis r10,0x7fff
ori r10,r10,0xffff
mtspr SPRN_DEC,r10
b MASKED_DEC_HANDLER_LABEL
1: andi. r10,r10,PACA_IRQ_MUST_HARD_MASK
beq 2f
.if \hsrr
mfspr r10,SPRN_HSRR1
xori r10,r10,MSR_EE /* clear MSR_EE */
mtspr SPRN_HSRR1,r10
.else
mfspr r10,SPRN_SRR1
xori r10,r10,MSR_EE /* clear MSR_EE */
mtspr SPRN_SRR1,r10
.endif
ori r11,r11,PACA_IRQ_HARD_DIS
stb r11,PACAIRQHAPPENED(r13)
2: /* done */
mtcrf 0x80,r9
std r1,PACAR1(r13)
ld r9,PACA_EXGEN+EX_R9(r13)
ld r10,PACA_EXGEN+EX_R10(r13)
ld r11,PACA_EXGEN+EX_R11(r13)
/* returns to kernel where r13 must be set up, so don't restore it */
.if \hsrr
HRFI_TO_KERNEL
.else
RFI_TO_KERNEL
.endif
b .
MASKED_DEC_HANDLER(\hsrr\())
.endm
TRAMP_REAL_BEGIN(stf_barrier_fallback)
std r9,PACA_EXRFI+EX_R9(r13)
@ -1612,8 +1627,8 @@ TRAMP_REAL_BEGIN(hrfi_flush_fallback)
* cannot reach these if they are put there.
*/
USE_FIXED_SECTION(virt_trampolines)
MASKED_INTERRUPT()
MASKED_INTERRUPT(H)
MASKED_INTERRUPT EXC_STD
MASKED_INTERRUPT EXC_HV
#ifdef CONFIG_KVM_BOOK3S_64_HANDLER
TRAMP_REAL_BEGIN(kvmppc_skip_interrupt)