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-rw-r--r--arch/powerpc/include/asm/exception-64s.h65
-rw-r--r--arch/powerpc/include/asm/kvm_asm.h1
-rw-r--r--arch/powerpc/include/asm/kvm_book3s_asm.h1
-rw-r--r--arch/powerpc/kernel/cpu_setup_power7.S3
-rw-r--r--arch/powerpc/kernel/exceptions-64s.S48
-rw-r--r--arch/powerpc/kvm/book3s_rmhandlers.S1
-rw-r--r--arch/powerpc/kvm/book3s_segment.S10
-rw-r--r--arch/powerpc/platforms/iseries/exception.S2
-rw-r--r--arch/powerpc/platforms/iseries/exception.h4
9 files changed, 86 insertions, 49 deletions
diff --git a/arch/powerpc/include/asm/exception-64s.h b/arch/powerpc/include/asm/exception-64s.h
index 337b6fa2f8c..1d98e05be51 100644
--- a/arch/powerpc/include/asm/exception-64s.h
+++ b/arch/powerpc/include/asm/exception-64s.h
@@ -56,30 +56,37 @@
#define LOAD_HANDLER(reg, label) \
addi reg,reg,(label)-_stext; /* virt addr of handler ... */
-#define EXCEPTION_PROLOG_1(area) \
+/* Exception register prefixes */
+#define EXC_HV H
+#define EXC_STD
+
+#define __EXCEPTION_PROLOG_1(area, h) \
GET_PACA(r13); \
std r9,area+EX_R9(r13); /* save r9 - r12 */ \
std r10,area+EX_R10(r13); \
std r11,area+EX_R11(r13); \
std r12,area+EX_R12(r13); \
- mfspr r9,SPRN_SPRG_SCRATCH0; \
+ mfspr r9,SPRN_SPRG_##h##SCRATCH0; \
std r9,area+EX_R13(r13); \
mfcr r9
+#define EXCEPTION_PROLOG_1(area, h) __EXCEPTION_PROLOG_1(area, h)
-#define EXCEPTION_PROLOG_PSERIES_1(label) \
+#define __EXCEPTION_PROLOG_PSERIES_1(label, h) \
ld r12,PACAKBASE(r13); /* get high part of &label */ \
ld r10,PACAKMSR(r13); /* get MSR value for kernel */ \
- mfspr r11,SPRN_SRR0; /* save SRR0 */ \
+ mfspr r11,SPRN_##h##SRR0; /* save SRR0 */ \
LOAD_HANDLER(r12,label) \
- mtspr SPRN_SRR0,r12; \
- mfspr r12,SPRN_SRR1; /* and SRR1 */ \
- mtspr SPRN_SRR1,r10; \
- rfid; \
+ mtspr SPRN_##h##SRR0,r12; \
+ mfspr r12,SPRN_##h##SRR1; /* and SRR1 */ \
+ mtspr SPRN_##h##SRR1,r10; \
+ h##rfid; \
b . /* prevent speculative execution */
+#define EXCEPTION_PROLOG_PSERIES_1(label, h) \
+ __EXCEPTION_PROLOG_PSERIES_1(label, h)
-#define EXCEPTION_PROLOG_PSERIES(area, label) \
- EXCEPTION_PROLOG_1(area); \
- EXCEPTION_PROLOG_PSERIES_1(label);
+#define EXCEPTION_PROLOG_PSERIES(area, label, h) \
+ EXCEPTION_PROLOG_1(area, h); \
+ EXCEPTION_PROLOG_PSERIES_1(label, h);
/*
* The common exception prolog is used for all except a few exceptions
@@ -150,50 +157,44 @@ label##_pSeries: \
HMT_MEDIUM; \
DO_KVM n; \
mtspr SPRN_SPRG_SCRATCH0,r13; /* save r13 */ \
- EXCEPTION_PROLOG_PSERIES(PACA_EXGEN, label##_common)
+ EXCEPTION_PROLOG_PSERIES(PACA_EXGEN, label##_common, EXC_STD)
#define HSTD_EXCEPTION_PSERIES(n, label) \
. = n; \
.globl label##_pSeries; \
label##_pSeries: \
HMT_MEDIUM; \
- mtspr SPRN_SPRG_SCRATCH0,r20; /* save r20 */ \
- mfspr r20,SPRN_HSRR0; /* copy HSRR0 to SRR0 */ \
- mtspr SPRN_SRR0,r20; \
- mfspr r20,SPRN_HSRR1; /* copy HSRR0 to SRR0 */ \
- mtspr SPRN_SRR1,r20; \
- mfspr r20,SPRN_SPRG_SCRATCH0; /* restore r20 */ \
- mtspr SPRN_SPRG_SCRATCH0,r13; /* save r13 */ \
- EXCEPTION_PROLOG_PSERIES(PACA_EXGEN, label##_common)
+ DO_KVM n; \
+ mtspr SPRN_SPRG_HSCRATCH0,r13;/* save r13 */ \
+ EXCEPTION_PROLOG_PSERIES(PACA_EXGEN, label##_common, EXC_HV)
-#define MASKABLE_EXCEPTION_PSERIES(n, label) \
- . = n; \
- .globl label##_pSeries; \
-label##_pSeries: \
+#define __MASKABLE_EXCEPTION_PSERIES(n, label, h) \
HMT_MEDIUM; \
DO_KVM n; \
- mtspr SPRN_SPRG_SCRATCH0,r13; /* save r13 */ \
+ mtspr SPRN_SPRG_##h##SCRATCH0,r13; /* save r13 */ \
GET_PACA(r13); \
std r9,PACA_EXGEN+EX_R9(r13); /* save r9, r10 */ \
std r10,PACA_EXGEN+EX_R10(r13); \
lbz r10,PACASOFTIRQEN(r13); \
mfcr r9; \
cmpwi r10,0; \
- beq masked_interrupt; \
- mfspr r10,SPRN_SPRG_SCRATCH0; \
+ beq masked_##h##interrupt; \
+ mfspr r10,SPRN_SPRG_##h##SCRATCH0; \
std r10,PACA_EXGEN+EX_R13(r13); \
std r11,PACA_EXGEN+EX_R11(r13); \
std r12,PACA_EXGEN+EX_R12(r13); \
ld r12,PACAKBASE(r13); /* get high part of &label */ \
ld r10,PACAKMSR(r13); /* get MSR value for kernel */ \
- mfspr r11,SPRN_SRR0; /* save SRR0 */ \
+ mfspr r11,SPRN_##h##SRR0; /* save SRR0 */ \
LOAD_HANDLER(r12,label##_common) \
- mtspr SPRN_SRR0,r12; \
- mfspr r12,SPRN_SRR1; /* and SRR1 */ \
- mtspr SPRN_SRR1,r10; \
- rfid; \
+ mtspr SPRN_##h##SRR0,r12; \
+ mfspr r12,SPRN_##h##SRR1; /* and SRR1 */ \
+ mtspr SPRN_##h##SRR1,r10; \
+ h##rfid; \
b . /* prevent speculative execution */
+#define MASKABLE_EXCEPTION_PSERIES(n, label, h) \
+ __MASKABLE_EXCEPTION_PSERIES(n, label, h)
#ifdef CONFIG_PPC_ISERIES
#define DISABLE_INTS \
diff --git a/arch/powerpc/include/asm/kvm_asm.h b/arch/powerpc/include/asm/kvm_asm.h
index 5b750467439..0951b17f4eb 100644
--- a/arch/powerpc/include/asm/kvm_asm.h
+++ b/arch/powerpc/include/asm/kvm_asm.h
@@ -59,6 +59,7 @@
#define BOOK3S_INTERRUPT_INST_SEGMENT 0x480
#define BOOK3S_INTERRUPT_EXTERNAL 0x500
#define BOOK3S_INTERRUPT_EXTERNAL_LEVEL 0x501
+#define BOOK3S_INTERRUPT_EXTERNAL_HV 0x502
#define BOOK3S_INTERRUPT_ALIGNMENT 0x600
#define BOOK3S_INTERRUPT_PROGRAM 0x700
#define BOOK3S_INTERRUPT_FP_UNAVAIL 0x800
diff --git a/arch/powerpc/include/asm/kvm_book3s_asm.h b/arch/powerpc/include/asm/kvm_book3s_asm.h
index 36fdb3aff30..d5a8a386163 100644
--- a/arch/powerpc/include/asm/kvm_book3s_asm.h
+++ b/arch/powerpc/include/asm/kvm_book3s_asm.h
@@ -34,6 +34,7 @@
(\intno == BOOK3S_INTERRUPT_DATA_SEGMENT) || \
(\intno == BOOK3S_INTERRUPT_INST_SEGMENT) || \
(\intno == BOOK3S_INTERRUPT_EXTERNAL) || \
+ (\intno == BOOK3S_INTERRUPT_EXTERNAL_HV) || \
(\intno == BOOK3S_INTERRUPT_ALIGNMENT) || \
(\intno == BOOK3S_INTERRUPT_PROGRAM) || \
(\intno == BOOK3S_INTERRUPT_FP_UNAVAIL) || \
diff --git a/arch/powerpc/kernel/cpu_setup_power7.S b/arch/powerpc/kernel/cpu_setup_power7.S
index f2b317817c4..e801ef15d6d 100644
--- a/arch/powerpc/kernel/cpu_setup_power7.S
+++ b/arch/powerpc/kernel/cpu_setup_power7.S
@@ -52,13 +52,14 @@ __init_hvmode_206:
__init_LPCR:
/* Setup a sane LPCR:
*
- * LPES = 0b11 (SRR0/1 used for 0x500)
+ * LPES = 0b01 (HSRR0/1 used for 0x500)
* PECE = 0b111
*
* Other bits untouched for now
*/
mfspr r3,SPRN_LPCR
ori r3,r3,(LPCR_LPES0|LPCR_LPES1)
+ xori r3,r3, LPCR_LPES0
ori r3,r3,(LPCR_PECE0|LPCR_PECE1|LPCR_PECE2)
mtspr SPRN_LPCR,r3
isync
diff --git a/arch/powerpc/kernel/exceptions-64s.S b/arch/powerpc/kernel/exceptions-64s.S
index 6784bf7090f..17f1d667063 100644
--- a/arch/powerpc/kernel/exceptions-64s.S
+++ b/arch/powerpc/kernel/exceptions-64s.S
@@ -44,7 +44,7 @@ _machine_check_pSeries:
HMT_MEDIUM
DO_KVM 0x200
mtspr SPRN_SPRG_SCRATCH0,r13 /* save r13 */
- EXCEPTION_PROLOG_PSERIES(PACA_EXMC, machine_check_common)
+ EXCEPTION_PROLOG_PSERIES(PACA_EXMC, machine_check_common, EXC_STD)
. = 0x300
.globl data_access_pSeries
@@ -71,9 +71,9 @@ BEGIN_FTR_SECTION
std r10,PACA_EXGEN+EX_R10(r13)
std r11,PACA_EXGEN+EX_R9(r13)
std r12,PACA_EXGEN+EX_R13(r13)
- EXCEPTION_PROLOG_PSERIES_1(data_access_common)
+ EXCEPTION_PROLOG_PSERIES_1(data_access_common, EXC_STD)
FTR_SECTION_ELSE
- EXCEPTION_PROLOG_PSERIES(PACA_EXGEN, data_access_common)
+ EXCEPTION_PROLOG_PSERIES(PACA_EXGEN, data_access_common, EXC_STD)
ALT_FTR_SECTION_END_IFCLR(CPU_FTR_SLB)
. = 0x380
@@ -147,11 +147,24 @@ instruction_access_slb_pSeries:
bctr
#endif
- MASKABLE_EXCEPTION_PSERIES(0x500, hardware_interrupt)
+ . = 0x500;
+ .globl hardware_interrupt_pSeries
+hardware_interrupt_pSeries:
+ BEGIN_FTR_SECTION
+ MASKABLE_EXCEPTION_PSERIES(0x500, hardware_interrupt, EXC_STD)
+ FTR_SECTION_ELSE
+ MASKABLE_EXCEPTION_PSERIES(0x502, hardware_interrupt, EXC_HV)
+ ALT_FTR_SECTION_END_IFCLR(CPU_FTR_HVMODE_206)
+
STD_EXCEPTION_PSERIES(0x600, alignment)
STD_EXCEPTION_PSERIES(0x700, program_check)
STD_EXCEPTION_PSERIES(0x800, fp_unavailable)
- MASKABLE_EXCEPTION_PSERIES(0x900, decrementer)
+
+ . = 0x900;
+ .globl decrementer_pSeries
+decrementer_pSeries:
+ MASKABLE_EXCEPTION_PSERIES(0x900, decrementer, EXC_STD)
+
STD_EXCEPTION_PSERIES(0xa00, trap_0a)
STD_EXCEPTION_PSERIES(0xb00, trap_0b)
@@ -207,15 +220,15 @@ vsx_unavailable_pSeries_1:
b vsx_unavailable_pSeries
#ifdef CONFIG_CBE_RAS
- HSTD_EXCEPTION_PSERIES(0x1200, cbe_system_error)
+ HSTD_EXCEPTION_PSERIES(0x1202, cbe_system_error)
#endif /* CONFIG_CBE_RAS */
STD_EXCEPTION_PSERIES(0x1300, instruction_breakpoint)
#ifdef CONFIG_CBE_RAS
- HSTD_EXCEPTION_PSERIES(0x1600, cbe_maintenance)
+ HSTD_EXCEPTION_PSERIES(0x1602, cbe_maintenance)
#endif /* CONFIG_CBE_RAS */
STD_EXCEPTION_PSERIES(0x1700, altivec_assist)
#ifdef CONFIG_CBE_RAS
- HSTD_EXCEPTION_PSERIES(0x1800, cbe_thermal)
+ HSTD_EXCEPTION_PSERIES(0x1802, cbe_thermal)
#endif /* CONFIG_CBE_RAS */
. = 0x3000
@@ -244,13 +257,26 @@ masked_interrupt:
rfid
b .
+masked_Hinterrupt:
+ stb r10,PACAHARDIRQEN(r13)
+ mtcrf 0x80,r9
+ ld r9,PACA_EXGEN+EX_R9(r13)
+ mfspr r10,SPRN_HSRR1
+ rldicl r10,r10,48,1 /* clear MSR_EE */
+ rotldi r10,r10,16
+ mtspr SPRN_HSRR1,r10
+ ld r10,PACA_EXGEN+EX_R10(r13)
+ mfspr r13,SPRN_SPRG_HSCRATCH0
+ hrfid
+ b .
+
.align 7
do_stab_bolted_pSeries:
std r11,PACA_EXSLB+EX_R11(r13)
std r12,PACA_EXSLB+EX_R12(r13)
mfspr r10,SPRN_SPRG_SCRATCH0
std r10,PACA_EXSLB+EX_R13(r13)
- EXCEPTION_PROLOG_PSERIES_1(.do_stab_bolted)
+ EXCEPTION_PROLOG_PSERIES_1(.do_stab_bolted, EXC_STD)
#ifdef CONFIG_PPC_PSERIES
/*
@@ -261,14 +287,14 @@ do_stab_bolted_pSeries:
system_reset_fwnmi:
HMT_MEDIUM
mtspr SPRN_SPRG_SCRATCH0,r13 /* save r13 */
- EXCEPTION_PROLOG_PSERIES(PACA_EXGEN, system_reset_common)
+ EXCEPTION_PROLOG_PSERIES(PACA_EXGEN, system_reset_common, EXC_STD)
.globl machine_check_fwnmi
.align 7
machine_check_fwnmi:
HMT_MEDIUM
mtspr SPRN_SPRG_SCRATCH0,r13 /* save r13 */
- EXCEPTION_PROLOG_PSERIES(PACA_EXMC, machine_check_common)
+ EXCEPTION_PROLOG_PSERIES(PACA_EXMC, machine_check_common, EXC_STD)
#endif /* CONFIG_PPC_PSERIES */
diff --git a/arch/powerpc/kvm/book3s_rmhandlers.S b/arch/powerpc/kvm/book3s_rmhandlers.S
index b0ff5ff76e2..046e1f3d443 100644
--- a/arch/powerpc/kvm/book3s_rmhandlers.S
+++ b/arch/powerpc/kvm/book3s_rmhandlers.S
@@ -112,6 +112,7 @@ INTERRUPT_TRAMPOLINE BOOK3S_INTERRUPT_MACHINE_CHECK
INTERRUPT_TRAMPOLINE BOOK3S_INTERRUPT_DATA_STORAGE
INTERRUPT_TRAMPOLINE BOOK3S_INTERRUPT_INST_STORAGE
INTERRUPT_TRAMPOLINE BOOK3S_INTERRUPT_EXTERNAL
+INTERRUPT_TRAMPOLINE BOOK3S_INTERRUPT_EXTERNAL_HV
INTERRUPT_TRAMPOLINE BOOK3S_INTERRUPT_ALIGNMENT
INTERRUPT_TRAMPOLINE BOOK3S_INTERRUPT_PROGRAM
INTERRUPT_TRAMPOLINE BOOK3S_INTERRUPT_FP_UNAVAIL
diff --git a/arch/powerpc/kvm/book3s_segment.S b/arch/powerpc/kvm/book3s_segment.S
index 7c52ed0b705..d842795d0f2 100644
--- a/arch/powerpc/kvm/book3s_segment.S
+++ b/arch/powerpc/kvm/book3s_segment.S
@@ -155,9 +155,15 @@ kvmppc_handler_trampoline_exit:
PPC_LL r2, (SHADOW_VCPU_OFF + SVCPU_HOST_R2)(r13)
/* Save guest PC and MSR */
- mfsrr0 r3
+ andi. r0,r12,0x2
+ beq 1f
+ mfspr r3,SPRN_HSRR0
+ mfspr r4,SPRN_HSRR1
+ andi. r12,r12,0x3ffd
+ b 2f
+1: mfsrr0 r3
mfsrr1 r4
-
+2:
PPC_STL r3, (SHADOW_VCPU_OFF + SVCPU_PC)(r13)
PPC_STL r4, (SHADOW_VCPU_OFF + SVCPU_SHADOW_SRR1)(r13)
diff --git a/arch/powerpc/platforms/iseries/exception.S b/arch/powerpc/platforms/iseries/exception.S
index 32a56c6dfa7..f7a487231a1 100644
--- a/arch/powerpc/platforms/iseries/exception.S
+++ b/arch/powerpc/platforms/iseries/exception.S
@@ -155,7 +155,7 @@ BEGIN_FTR_SECTION
std r12,PACA_EXGEN+EX_R13(r13)
EXCEPTION_PROLOG_ISERIES_1
FTR_SECTION_ELSE
- EXCEPTION_PROLOG_1(PACA_EXGEN)
+ EXCEPTION_PROLOG_1(PACA_EXGEN, EXC_STD)
EXCEPTION_PROLOG_ISERIES_1
ALT_FTR_SECTION_END_IFCLR(CPU_FTR_SLB)
b data_access_common
diff --git a/arch/powerpc/platforms/iseries/exception.h b/arch/powerpc/platforms/iseries/exception.h
index bae3fba5ad8..57127d805fe 100644
--- a/arch/powerpc/platforms/iseries/exception.h
+++ b/arch/powerpc/platforms/iseries/exception.h
@@ -39,7 +39,7 @@
label##_iSeries: \
HMT_MEDIUM; \
mtspr SPRN_SPRG_SCRATCH0,r13; /* save r13 */ \
- EXCEPTION_PROLOG_1(area); \
+ EXCEPTION_PROLOG_1(area, EXC_STD); \
EXCEPTION_PROLOG_ISERIES_1; \
b label##_common
@@ -48,7 +48,7 @@ label##_iSeries: \
label##_iSeries: \
HMT_MEDIUM; \
mtspr SPRN_SPRG_SCRATCH0,r13; /* save r13 */ \
- EXCEPTION_PROLOG_1(PACA_EXGEN); \
+ EXCEPTION_PROLOG_1(PACA_EXGEN, EXC_STD); \
lbz r10,PACASOFTIRQEN(r13); \
cmpwi 0,r10,0; \
beq- label##_iSeries_masked; \