From: Nicholas Piggin <npiggin@gmail.com>
To: kvm-ppc@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org, Nicholas Piggin <npiggin@gmail.com>
Subject: [PATCH v6 16/48] KVM: PPC: Book3S 64: Move interrupt early register setup to KVM
Date: Mon, 5 Apr 2021 11:19:16 +1000 [thread overview]
Message-ID: <20210405011948.675354-17-npiggin@gmail.com> (raw)
In-Reply-To: <20210405011948.675354-1-npiggin@gmail.com>
Like the earlier patch for hcalls, KVM interrupt entry requires a
different calling convention than the Linux interrupt handlers
set up. Move the code that converts from one to the other into KVM.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
---
arch/powerpc/kernel/exceptions-64s.S | 131 +++++----------------------
arch/powerpc/kvm/book3s_64_entry.S | 50 +++++++++-
2 files changed, 71 insertions(+), 110 deletions(-)
diff --git a/arch/powerpc/kernel/exceptions-64s.S b/arch/powerpc/kernel/exceptions-64s.S
index a23feaa445b5..115cf79f3e82 100644
--- a/arch/powerpc/kernel/exceptions-64s.S
+++ b/arch/powerpc/kernel/exceptions-64s.S
@@ -187,7 +187,6 @@ do_define_int n
.endif
.endm
-#ifdef CONFIG_KVM_BOOK3S_64_HANDLER
/*
* All interrupts which set HSRR registers, as well as SRESET and MCE and
* syscall when invoked with "sc 1" switch to MSR[HV]=1 (HVMODE) to be taken,
@@ -220,54 +219,25 @@ do_define_int n
* to KVM to handle.
*/
-.macro KVMTEST name
+.macro KVMTEST name handler
+#ifdef CONFIG_KVM_BOOK3S_64_HANDLER
lbz r10,HSTATE_IN_GUEST(r13)
cmpwi r10,0
- bne \name\()_kvm
-.endm
-
-.macro GEN_KVM name
- .balign IFETCH_ALIGN_BYTES
-\name\()_kvm:
-
-BEGIN_FTR_SECTION
- ld r10,IAREA+EX_CFAR(r13)
- std r10,HSTATE_CFAR(r13)
-END_FTR_SECTION_IFSET(CPU_FTR_CFAR)
-
- ld r10,IAREA+EX_CTR(r13)
- mtctr r10
-BEGIN_FTR_SECTION
- ld r10,IAREA+EX_PPR(r13)
- std r10,HSTATE_PPR(r13)
-END_FTR_SECTION_IFSET(CPU_FTR_HAS_PPR)
- ld r11,IAREA+EX_R11(r13)
- ld r12,IAREA+EX_R12(r13)
- std r12,HSTATE_SCRATCH0(r13)
- sldi r12,r9,32
- ld r9,IAREA+EX_R9(r13)
- ld r10,IAREA+EX_R10(r13)
/* HSRR variants have the 0x2 bit added to their trap number */
.if IHSRR_IF_HVMODE
BEGIN_FTR_SECTION
- ori r12,r12,(IVEC + 0x2)
+ li r10,(IVEC + 0x2)
FTR_SECTION_ELSE
- ori r12,r12,(IVEC)
+ li r10,(IVEC)
ALT_FTR_SECTION_END_IFSET(CPU_FTR_HVMODE | CPU_FTR_ARCH_206)
.elseif IHSRR
- ori r12,r12,(IVEC+ 0x2)
+ li r10,(IVEC + 0x2)
.else
- ori r12,r12,(IVEC)
+ li r10,(IVEC)
.endif
- b kvmppc_interrupt
-.endm
-
-#else
-.macro KVMTEST name
-.endm
-.macro GEN_KVM name
-.endm
+ bne \handler
#endif
+.endm
/*
* This is the BOOK3S interrupt entry code macro.
@@ -409,7 +379,7 @@ END_FTR_SECTION_IFSET(CPU_FTR_CFAR)
DEFINE_FIXED_SYMBOL(\name\()_common_real)
\name\()_common_real:
.if IKVM_REAL
- KVMTEST \name
+ KVMTEST \name kvm_interrupt
.endif
ld r10,PACAKMSR(r13) /* get MSR value for kernel */
@@ -432,7 +402,7 @@ DEFINE_FIXED_SYMBOL(\name\()_common_real)
DEFINE_FIXED_SYMBOL(\name\()_common_virt)
\name\()_common_virt:
.if IKVM_VIRT
- KVMTEST \name
+ KVMTEST \name kvm_interrupt
1:
.endif
.endif /* IVIRT */
@@ -446,7 +416,7 @@ DEFINE_FIXED_SYMBOL(\name\()_common_virt)
DEFINE_FIXED_SYMBOL(\name\()_common_real)
\name\()_common_real:
.if IKVM_REAL
- KVMTEST \name
+ KVMTEST \name kvm_interrupt
.endif
.endm
@@ -967,8 +937,6 @@ EXC_COMMON_BEGIN(system_reset_common)
EXCEPTION_RESTORE_REGS
RFI_TO_USER_OR_KERNEL
- GEN_KVM system_reset
-
/**
* Interrupt 0x200 - Machine Check Interrupt (MCE).
@@ -1132,7 +1100,7 @@ END_FTR_SECTION_IFSET(CPU_FTR_HVMODE | CPU_FTR_ARCH_206)
/*
* Check if we are coming from guest. If yes, then run the normal
* exception handler which will take the
- * machine_check_kvm->kvmppc_interrupt branch to deliver the MC event
+ * machine_check_kvm->kvm_interrupt branch to deliver the MC event
* to guest.
*/
lbz r11,HSTATE_IN_GUEST(r13)
@@ -1203,8 +1171,6 @@ EXC_COMMON_BEGIN(machine_check_common)
bl machine_check_exception
b interrupt_return
- GEN_KVM machine_check
-
#ifdef CONFIG_PPC_P7_NAP
/*
@@ -1339,8 +1305,6 @@ ALT_MMU_FTR_SECTION_END_IFCLR(MMU_FTR_TYPE_RADIX)
REST_NVGPRS(r1)
b interrupt_return
- GEN_KVM data_access
-
/**
* Interrupt 0x380 - Data Segment Interrupt (DSLB).
@@ -1390,8 +1354,6 @@ ALT_MMU_FTR_SECTION_END_IFCLR(MMU_FTR_TYPE_RADIX)
bl do_bad_slb_fault
b interrupt_return
- GEN_KVM data_access_slb
-
/**
* Interrupt 0x400 - Instruction Storage Interrupt (ISI).
@@ -1428,8 +1390,6 @@ MMU_FTR_SECTION_ELSE
ALT_MMU_FTR_SECTION_END_IFCLR(MMU_FTR_TYPE_RADIX)
b interrupt_return
- GEN_KVM instruction_access
-
/**
* Interrupt 0x480 - Instruction Segment Interrupt (ISLB).
@@ -1474,8 +1434,6 @@ ALT_MMU_FTR_SECTION_END_IFCLR(MMU_FTR_TYPE_RADIX)
bl do_bad_slb_fault
b interrupt_return
- GEN_KVM instruction_access_slb
-
/**
* Interrupt 0x500 - External Interrupt.
@@ -1521,8 +1479,6 @@ EXC_COMMON_BEGIN(hardware_interrupt_common)
bl do_IRQ
b interrupt_return
- GEN_KVM hardware_interrupt
-
/**
* Interrupt 0x600 - Alignment Interrupt
@@ -1550,8 +1506,6 @@ EXC_COMMON_BEGIN(alignment_common)
REST_NVGPRS(r1) /* instruction emulation may change GPRs */
b interrupt_return
- GEN_KVM alignment
-
/**
* Interrupt 0x700 - Program Interrupt (program check).
@@ -1659,8 +1613,6 @@ EXC_COMMON_BEGIN(program_check_common)
REST_NVGPRS(r1) /* instruction emulation may change GPRs */
b interrupt_return
- GEN_KVM program_check
-
/*
* Interrupt 0x800 - Floating-Point Unavailable Interrupt.
@@ -1710,8 +1662,6 @@ END_FTR_SECTION_IFSET(CPU_FTR_TM)
b interrupt_return
#endif
- GEN_KVM fp_unavailable
-
/**
* Interrupt 0x900 - Decrementer Interrupt.
@@ -1751,8 +1701,6 @@ EXC_COMMON_BEGIN(decrementer_common)
bl timer_interrupt
b interrupt_return
- GEN_KVM decrementer
-
/**
* Interrupt 0x980 - Hypervisor Decrementer Interrupt.
@@ -1798,8 +1746,6 @@ EXC_COMMON_BEGIN(hdecrementer_common)
ld r13,PACA_EXGEN+EX_R13(r13)
HRFI_TO_KERNEL
- GEN_KVM hdecrementer
-
/**
* Interrupt 0xa00 - Directed Privileged Doorbell Interrupt.
@@ -1840,8 +1786,6 @@ EXC_COMMON_BEGIN(doorbell_super_common)
#endif
b interrupt_return
- GEN_KVM doorbell_super
-
EXC_REAL_NONE(0xb00, 0x100)
EXC_VIRT_NONE(0x4b00, 0x100)
@@ -1891,7 +1835,7 @@ INT_DEFINE_END(system_call)
GET_PACA(r13)
std r10,PACA_EXGEN+EX_R10(r13)
INTERRUPT_TO_KERNEL
- KVMTEST system_call /* uses r10, branch to system_call_kvm */
+ KVMTEST system_call kvm_hcall /* uses r10, branch to kvm_hcall */
mfctr r9
#else
mr r9,r13
@@ -1947,7 +1891,7 @@ EXC_VIRT_BEGIN(system_call, 0x4c00, 0x100)
EXC_VIRT_END(system_call, 0x4c00, 0x100)
#ifdef CONFIG_KVM_BOOK3S_64_HANDLER
-TRAMP_REAL_BEGIN(system_call_kvm)
+TRAMP_REAL_BEGIN(kvm_hcall)
mfctr r10
SET_SCRATCH0(r10) /* Save r13 in SCRATCH0 */
#ifdef CONFIG_RELOCATABLE
@@ -1987,8 +1931,6 @@ EXC_COMMON_BEGIN(single_step_common)
bl single_step_exception
b interrupt_return
- GEN_KVM single_step
-
/**
* Interrupt 0xe00 - Hypervisor Data Storage Interrupt (HDSI).
@@ -2027,8 +1969,6 @@ MMU_FTR_SECTION_ELSE
ALT_MMU_FTR_SECTION_END_IFSET(MMU_FTR_TYPE_RADIX)
b interrupt_return
- GEN_KVM h_data_storage
-
/**
* Interrupt 0xe20 - Hypervisor Instruction Storage Interrupt (HISI).
@@ -2054,8 +1994,6 @@ EXC_COMMON_BEGIN(h_instr_storage_common)
bl unknown_exception
b interrupt_return
- GEN_KVM h_instr_storage
-
/**
* Interrupt 0xe40 - Hypervisor Emulation Assistance Interrupt.
@@ -2080,8 +2018,6 @@ EXC_COMMON_BEGIN(emulation_assist_common)
REST_NVGPRS(r1) /* instruction emulation may change GPRs */
b interrupt_return
- GEN_KVM emulation_assist
-
/**
* Interrupt 0xe60 - Hypervisor Maintenance Interrupt (HMI).
@@ -2153,8 +2089,6 @@ EXC_COMMON_BEGIN(hmi_exception_early_common)
EXCEPTION_RESTORE_REGS hsrr=1
GEN_INT_ENTRY hmi_exception, virt=0
- GEN_KVM hmi_exception_early
-
EXC_COMMON_BEGIN(hmi_exception_common)
GEN_COMMON hmi_exception
FINISH_NAP
@@ -2162,8 +2096,6 @@ EXC_COMMON_BEGIN(hmi_exception_common)
bl handle_hmi_exception
b interrupt_return
- GEN_KVM hmi_exception
-
/**
* Interrupt 0xe80 - Directed Hypervisor Doorbell Interrupt.
@@ -2195,8 +2127,6 @@ EXC_COMMON_BEGIN(h_doorbell_common)
#endif
b interrupt_return
- GEN_KVM h_doorbell
-
/**
* Interrupt 0xea0 - Hypervisor Virtualization Interrupt.
@@ -2224,8 +2154,6 @@ EXC_COMMON_BEGIN(h_virt_irq_common)
bl do_IRQ
b interrupt_return
- GEN_KVM h_virt_irq
-
EXC_REAL_NONE(0xec0, 0x20)
EXC_VIRT_NONE(0x4ec0, 0x20)
@@ -2270,8 +2198,6 @@ EXC_COMMON_BEGIN(performance_monitor_common)
bl performance_monitor_exception
b interrupt_return
- GEN_KVM performance_monitor
-
/**
* Interrupt 0xf20 - Vector Unavailable Interrupt.
@@ -2321,8 +2247,6 @@ END_FTR_SECTION_IFSET(CPU_FTR_ALTIVEC)
bl altivec_unavailable_exception
b interrupt_return
- GEN_KVM altivec_unavailable
-
/**
* Interrupt 0xf40 - VSX Unavailable Interrupt.
@@ -2371,8 +2295,6 @@ END_FTR_SECTION_IFSET(CPU_FTR_VSX)
bl vsx_unavailable_exception
b interrupt_return
- GEN_KVM vsx_unavailable
-
/**
* Interrupt 0xf60 - Facility Unavailable Interrupt.
@@ -2401,8 +2323,6 @@ EXC_COMMON_BEGIN(facility_unavailable_common)
REST_NVGPRS(r1) /* instruction emulation may change GPRs */
b interrupt_return
- GEN_KVM facility_unavailable
-
/**
* Interrupt 0xf60 - Hypervisor Facility Unavailable Interrupt.
@@ -2431,8 +2351,6 @@ EXC_COMMON_BEGIN(h_facility_unavailable_common)
REST_NVGPRS(r1) /* XXX Shouldn't be necessary in practice */
b interrupt_return
- GEN_KVM h_facility_unavailable
-
EXC_REAL_NONE(0xfa0, 0x20)
EXC_VIRT_NONE(0x4fa0, 0x20)
@@ -2462,8 +2380,6 @@ EXC_COMMON_BEGIN(cbe_system_error_common)
bl cbe_system_error_exception
b interrupt_return
- GEN_KVM cbe_system_error
-
#else /* CONFIG_CBE_RAS */
EXC_REAL_NONE(0x1200, 0x100)
EXC_VIRT_NONE(0x5200, 0x100)
@@ -2489,8 +2405,6 @@ EXC_COMMON_BEGIN(instruction_breakpoint_common)
bl instruction_breakpoint_exception
b interrupt_return
- GEN_KVM instruction_breakpoint
-
EXC_REAL_NONE(0x1400, 0x100)
EXC_VIRT_NONE(0x5400, 0x100)
@@ -2611,8 +2525,6 @@ EXC_COMMON_BEGIN(denorm_exception_common)
bl unknown_exception
b interrupt_return
- GEN_KVM denorm_exception
-
#ifdef CONFIG_CBE_RAS
INT_DEFINE_BEGIN(cbe_maintenance)
@@ -2630,8 +2542,6 @@ EXC_COMMON_BEGIN(cbe_maintenance_common)
bl cbe_maintenance_exception
b interrupt_return
- GEN_KVM cbe_maintenance
-
#else /* CONFIG_CBE_RAS */
EXC_REAL_NONE(0x1600, 0x100)
EXC_VIRT_NONE(0x5600, 0x100)
@@ -2662,8 +2572,6 @@ EXC_COMMON_BEGIN(altivec_assist_common)
#endif
b interrupt_return
- GEN_KVM altivec_assist
-
#ifdef CONFIG_CBE_RAS
INT_DEFINE_BEGIN(cbe_thermal)
@@ -2681,8 +2589,6 @@ EXC_COMMON_BEGIN(cbe_thermal_common)
bl cbe_thermal_exception
b interrupt_return
- GEN_KVM cbe_thermal
-
#else /* CONFIG_CBE_RAS */
EXC_REAL_NONE(0x1800, 0x100)
EXC_VIRT_NONE(0x5800, 0x100)
@@ -2935,6 +2841,15 @@ TRAMP_REAL_BEGIN(rfscv_flush_fallback)
USE_TEXT_SECTION()
+#ifdef CONFIG_KVM_BOOK3S_64_HANDLER
+kvm_interrupt:
+ /*
+ * The conditional branch in KVMTEST can't reach all the way,
+ * make a stub.
+ */
+ b kvmppc_interrupt
+#endif
+
_GLOBAL(do_uaccess_flush)
UACCESS_FLUSH_FIXUP_SECTION
nop
diff --git a/arch/powerpc/kvm/book3s_64_entry.S b/arch/powerpc/kvm/book3s_64_entry.S
index f527e16707db..2c9d106145e8 100644
--- a/arch/powerpc/kvm/book3s_64_entry.S
+++ b/arch/powerpc/kvm/book3s_64_entry.S
@@ -44,15 +44,61 @@ END_FTR_SECTION_IFSET(CPU_FTR_HAS_PPR)
sldi r12,r10,32
ori r12,r12,0xc00
ld r10,PACA_EXGEN+EX_R10(r13)
+ b do_kvm_interrupt
+/*
+ * KVM interrupt entry occurs after GEN_INT_ENTRY runs, and follows that
+ * call convention:
+ *
+ * guest R9-R13, CTR, CFAR, PPR saved in PACA EX_xxx save area
+ * guest (H)DAR, (H)DSISR are also in the save area for relevant interrupts
+ * guest R13 also saved in SCRATCH0
+ * R13 = PACA
+ * R11 = (H)SRR0
+ * R12 = (H)SRR1
+ * R9 = guest CR
+ * PPR is set to medium
+ *
+ * With the addition for KVM:
+ * R10 = trap vector
+ */
.global kvmppc_interrupt
.balign IFETCH_ALIGN_BYTES
kvmppc_interrupt:
+ li r11,PACA_EXGEN
+ cmpdi r10,0x200
+ bgt+ 1f
+ li r11,PACA_EXMC
+ beq 1f
+ li r11,PACA_EXNMI
+1: add r11,r11,r13
+
+BEGIN_FTR_SECTION
+ ld r12,EX_CFAR(r11)
+ std r12,HSTATE_CFAR(r13)
+END_FTR_SECTION_IFSET(CPU_FTR_CFAR)
+ ld r12,EX_CTR(r11)
+ mtctr r12
+BEGIN_FTR_SECTION
+ ld r12,EX_PPR(r11)
+ std r12,HSTATE_PPR(r13)
+END_FTR_SECTION_IFSET(CPU_FTR_HAS_PPR)
+ ld r12,EX_R12(r11)
+ std r12,HSTATE_SCRATCH0(r13)
+ sldi r12,r9,32
+ or r12,r12,r10
+ ld r9,EX_R9(r11)
+ ld r10,EX_R10(r11)
+ ld r11,EX_R11(r11)
+
+do_kvm_interrupt:
/*
- * Register contents:
+ * Hcalls and other interrupts come here after normalising register
+ * contents and save locations:
+ *
* R12 = (guest CR << 32) | interrupt vector
* R13 = PACA
- * guest R12 saved in shadow VCPU SCRATCH0
+ * guest R12 saved in shadow HSTATE_SCRATCH0
* guest R13 saved in SPRN_SCRATCH0
*/
std r9,HSTATE_SCRATCH2(r13)
--
2.23.0
WARNING: multiple messages have this Message-ID (diff)
From: Nicholas Piggin <npiggin@gmail.com>
To: kvm-ppc@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org, Nicholas Piggin <npiggin@gmail.com>
Subject: [PATCH v6 16/48] KVM: PPC: Book3S 64: Move interrupt early register setup to KVM
Date: Mon, 05 Apr 2021 01:19:16 +0000 [thread overview]
Message-ID: <20210405011948.675354-17-npiggin@gmail.com> (raw)
In-Reply-To: <20210405011948.675354-1-npiggin@gmail.com>
Like the earlier patch for hcalls, KVM interrupt entry requires a
different calling convention than the Linux interrupt handlers
set up. Move the code that converts from one to the other into KVM.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
---
arch/powerpc/kernel/exceptions-64s.S | 131 +++++----------------------
arch/powerpc/kvm/book3s_64_entry.S | 50 +++++++++-
2 files changed, 71 insertions(+), 110 deletions(-)
diff --git a/arch/powerpc/kernel/exceptions-64s.S b/arch/powerpc/kernel/exceptions-64s.S
index a23feaa445b5..115cf79f3e82 100644
--- a/arch/powerpc/kernel/exceptions-64s.S
+++ b/arch/powerpc/kernel/exceptions-64s.S
@@ -187,7 +187,6 @@ do_define_int n
.endif
.endm
-#ifdef CONFIG_KVM_BOOK3S_64_HANDLER
/*
* All interrupts which set HSRR registers, as well as SRESET and MCE and
* syscall when invoked with "sc 1" switch to MSR[HV]=1 (HVMODE) to be taken,
@@ -220,54 +219,25 @@ do_define_int n
* to KVM to handle.
*/
-.macro KVMTEST name
+.macro KVMTEST name handler
+#ifdef CONFIG_KVM_BOOK3S_64_HANDLER
lbz r10,HSTATE_IN_GUEST(r13)
cmpwi r10,0
- bne \name\()_kvm
-.endm
-
-.macro GEN_KVM name
- .balign IFETCH_ALIGN_BYTES
-\name\()_kvm:
-
-BEGIN_FTR_SECTION
- ld r10,IAREA+EX_CFAR(r13)
- std r10,HSTATE_CFAR(r13)
-END_FTR_SECTION_IFSET(CPU_FTR_CFAR)
-
- ld r10,IAREA+EX_CTR(r13)
- mtctr r10
-BEGIN_FTR_SECTION
- ld r10,IAREA+EX_PPR(r13)
- std r10,HSTATE_PPR(r13)
-END_FTR_SECTION_IFSET(CPU_FTR_HAS_PPR)
- ld r11,IAREA+EX_R11(r13)
- ld r12,IAREA+EX_R12(r13)
- std r12,HSTATE_SCRATCH0(r13)
- sldi r12,r9,32
- ld r9,IAREA+EX_R9(r13)
- ld r10,IAREA+EX_R10(r13)
/* HSRR variants have the 0x2 bit added to their trap number */
.if IHSRR_IF_HVMODE
BEGIN_FTR_SECTION
- ori r12,r12,(IVEC + 0x2)
+ li r10,(IVEC + 0x2)
FTR_SECTION_ELSE
- ori r12,r12,(IVEC)
+ li r10,(IVEC)
ALT_FTR_SECTION_END_IFSET(CPU_FTR_HVMODE | CPU_FTR_ARCH_206)
.elseif IHSRR
- ori r12,r12,(IVEC+ 0x2)
+ li r10,(IVEC + 0x2)
.else
- ori r12,r12,(IVEC)
+ li r10,(IVEC)
.endif
- b kvmppc_interrupt
-.endm
-
-#else
-.macro KVMTEST name
-.endm
-.macro GEN_KVM name
-.endm
+ bne \handler
#endif
+.endm
/*
* This is the BOOK3S interrupt entry code macro.
@@ -409,7 +379,7 @@ END_FTR_SECTION_IFSET(CPU_FTR_CFAR)
DEFINE_FIXED_SYMBOL(\name\()_common_real)
\name\()_common_real:
.if IKVM_REAL
- KVMTEST \name
+ KVMTEST \name kvm_interrupt
.endif
ld r10,PACAKMSR(r13) /* get MSR value for kernel */
@@ -432,7 +402,7 @@ DEFINE_FIXED_SYMBOL(\name\()_common_real)
DEFINE_FIXED_SYMBOL(\name\()_common_virt)
\name\()_common_virt:
.if IKVM_VIRT
- KVMTEST \name
+ KVMTEST \name kvm_interrupt
1:
.endif
.endif /* IVIRT */
@@ -446,7 +416,7 @@ DEFINE_FIXED_SYMBOL(\name\()_common_virt)
DEFINE_FIXED_SYMBOL(\name\()_common_real)
\name\()_common_real:
.if IKVM_REAL
- KVMTEST \name
+ KVMTEST \name kvm_interrupt
.endif
.endm
@@ -967,8 +937,6 @@ EXC_COMMON_BEGIN(system_reset_common)
EXCEPTION_RESTORE_REGS
RFI_TO_USER_OR_KERNEL
- GEN_KVM system_reset
-
/**
* Interrupt 0x200 - Machine Check Interrupt (MCE).
@@ -1132,7 +1100,7 @@ END_FTR_SECTION_IFSET(CPU_FTR_HVMODE | CPU_FTR_ARCH_206)
/*
* Check if we are coming from guest. If yes, then run the normal
* exception handler which will take the
- * machine_check_kvm->kvmppc_interrupt branch to deliver the MC event
+ * machine_check_kvm->kvm_interrupt branch to deliver the MC event
* to guest.
*/
lbz r11,HSTATE_IN_GUEST(r13)
@@ -1203,8 +1171,6 @@ EXC_COMMON_BEGIN(machine_check_common)
bl machine_check_exception
b interrupt_return
- GEN_KVM machine_check
-
#ifdef CONFIG_PPC_P7_NAP
/*
@@ -1339,8 +1305,6 @@ ALT_MMU_FTR_SECTION_END_IFCLR(MMU_FTR_TYPE_RADIX)
REST_NVGPRS(r1)
b interrupt_return
- GEN_KVM data_access
-
/**
* Interrupt 0x380 - Data Segment Interrupt (DSLB).
@@ -1390,8 +1354,6 @@ ALT_MMU_FTR_SECTION_END_IFCLR(MMU_FTR_TYPE_RADIX)
bl do_bad_slb_fault
b interrupt_return
- GEN_KVM data_access_slb
-
/**
* Interrupt 0x400 - Instruction Storage Interrupt (ISI).
@@ -1428,8 +1390,6 @@ MMU_FTR_SECTION_ELSE
ALT_MMU_FTR_SECTION_END_IFCLR(MMU_FTR_TYPE_RADIX)
b interrupt_return
- GEN_KVM instruction_access
-
/**
* Interrupt 0x480 - Instruction Segment Interrupt (ISLB).
@@ -1474,8 +1434,6 @@ ALT_MMU_FTR_SECTION_END_IFCLR(MMU_FTR_TYPE_RADIX)
bl do_bad_slb_fault
b interrupt_return
- GEN_KVM instruction_access_slb
-
/**
* Interrupt 0x500 - External Interrupt.
@@ -1521,8 +1479,6 @@ EXC_COMMON_BEGIN(hardware_interrupt_common)
bl do_IRQ
b interrupt_return
- GEN_KVM hardware_interrupt
-
/**
* Interrupt 0x600 - Alignment Interrupt
@@ -1550,8 +1506,6 @@ EXC_COMMON_BEGIN(alignment_common)
REST_NVGPRS(r1) /* instruction emulation may change GPRs */
b interrupt_return
- GEN_KVM alignment
-
/**
* Interrupt 0x700 - Program Interrupt (program check).
@@ -1659,8 +1613,6 @@ EXC_COMMON_BEGIN(program_check_common)
REST_NVGPRS(r1) /* instruction emulation may change GPRs */
b interrupt_return
- GEN_KVM program_check
-
/*
* Interrupt 0x800 - Floating-Point Unavailable Interrupt.
@@ -1710,8 +1662,6 @@ END_FTR_SECTION_IFSET(CPU_FTR_TM)
b interrupt_return
#endif
- GEN_KVM fp_unavailable
-
/**
* Interrupt 0x900 - Decrementer Interrupt.
@@ -1751,8 +1701,6 @@ EXC_COMMON_BEGIN(decrementer_common)
bl timer_interrupt
b interrupt_return
- GEN_KVM decrementer
-
/**
* Interrupt 0x980 - Hypervisor Decrementer Interrupt.
@@ -1798,8 +1746,6 @@ EXC_COMMON_BEGIN(hdecrementer_common)
ld r13,PACA_EXGEN+EX_R13(r13)
HRFI_TO_KERNEL
- GEN_KVM hdecrementer
-
/**
* Interrupt 0xa00 - Directed Privileged Doorbell Interrupt.
@@ -1840,8 +1786,6 @@ EXC_COMMON_BEGIN(doorbell_super_common)
#endif
b interrupt_return
- GEN_KVM doorbell_super
-
EXC_REAL_NONE(0xb00, 0x100)
EXC_VIRT_NONE(0x4b00, 0x100)
@@ -1891,7 +1835,7 @@ INT_DEFINE_END(system_call)
GET_PACA(r13)
std r10,PACA_EXGEN+EX_R10(r13)
INTERRUPT_TO_KERNEL
- KVMTEST system_call /* uses r10, branch to system_call_kvm */
+ KVMTEST system_call kvm_hcall /* uses r10, branch to kvm_hcall */
mfctr r9
#else
mr r9,r13
@@ -1947,7 +1891,7 @@ EXC_VIRT_BEGIN(system_call, 0x4c00, 0x100)
EXC_VIRT_END(system_call, 0x4c00, 0x100)
#ifdef CONFIG_KVM_BOOK3S_64_HANDLER
-TRAMP_REAL_BEGIN(system_call_kvm)
+TRAMP_REAL_BEGIN(kvm_hcall)
mfctr r10
SET_SCRATCH0(r10) /* Save r13 in SCRATCH0 */
#ifdef CONFIG_RELOCATABLE
@@ -1987,8 +1931,6 @@ EXC_COMMON_BEGIN(single_step_common)
bl single_step_exception
b interrupt_return
- GEN_KVM single_step
-
/**
* Interrupt 0xe00 - Hypervisor Data Storage Interrupt (HDSI).
@@ -2027,8 +1969,6 @@ MMU_FTR_SECTION_ELSE
ALT_MMU_FTR_SECTION_END_IFSET(MMU_FTR_TYPE_RADIX)
b interrupt_return
- GEN_KVM h_data_storage
-
/**
* Interrupt 0xe20 - Hypervisor Instruction Storage Interrupt (HISI).
@@ -2054,8 +1994,6 @@ EXC_COMMON_BEGIN(h_instr_storage_common)
bl unknown_exception
b interrupt_return
- GEN_KVM h_instr_storage
-
/**
* Interrupt 0xe40 - Hypervisor Emulation Assistance Interrupt.
@@ -2080,8 +2018,6 @@ EXC_COMMON_BEGIN(emulation_assist_common)
REST_NVGPRS(r1) /* instruction emulation may change GPRs */
b interrupt_return
- GEN_KVM emulation_assist
-
/**
* Interrupt 0xe60 - Hypervisor Maintenance Interrupt (HMI).
@@ -2153,8 +2089,6 @@ EXC_COMMON_BEGIN(hmi_exception_early_common)
EXCEPTION_RESTORE_REGS hsrr=1
GEN_INT_ENTRY hmi_exception, virt=0
- GEN_KVM hmi_exception_early
-
EXC_COMMON_BEGIN(hmi_exception_common)
GEN_COMMON hmi_exception
FINISH_NAP
@@ -2162,8 +2096,6 @@ EXC_COMMON_BEGIN(hmi_exception_common)
bl handle_hmi_exception
b interrupt_return
- GEN_KVM hmi_exception
-
/**
* Interrupt 0xe80 - Directed Hypervisor Doorbell Interrupt.
@@ -2195,8 +2127,6 @@ EXC_COMMON_BEGIN(h_doorbell_common)
#endif
b interrupt_return
- GEN_KVM h_doorbell
-
/**
* Interrupt 0xea0 - Hypervisor Virtualization Interrupt.
@@ -2224,8 +2154,6 @@ EXC_COMMON_BEGIN(h_virt_irq_common)
bl do_IRQ
b interrupt_return
- GEN_KVM h_virt_irq
-
EXC_REAL_NONE(0xec0, 0x20)
EXC_VIRT_NONE(0x4ec0, 0x20)
@@ -2270,8 +2198,6 @@ EXC_COMMON_BEGIN(performance_monitor_common)
bl performance_monitor_exception
b interrupt_return
- GEN_KVM performance_monitor
-
/**
* Interrupt 0xf20 - Vector Unavailable Interrupt.
@@ -2321,8 +2247,6 @@ END_FTR_SECTION_IFSET(CPU_FTR_ALTIVEC)
bl altivec_unavailable_exception
b interrupt_return
- GEN_KVM altivec_unavailable
-
/**
* Interrupt 0xf40 - VSX Unavailable Interrupt.
@@ -2371,8 +2295,6 @@ END_FTR_SECTION_IFSET(CPU_FTR_VSX)
bl vsx_unavailable_exception
b interrupt_return
- GEN_KVM vsx_unavailable
-
/**
* Interrupt 0xf60 - Facility Unavailable Interrupt.
@@ -2401,8 +2323,6 @@ EXC_COMMON_BEGIN(facility_unavailable_common)
REST_NVGPRS(r1) /* instruction emulation may change GPRs */
b interrupt_return
- GEN_KVM facility_unavailable
-
/**
* Interrupt 0xf60 - Hypervisor Facility Unavailable Interrupt.
@@ -2431,8 +2351,6 @@ EXC_COMMON_BEGIN(h_facility_unavailable_common)
REST_NVGPRS(r1) /* XXX Shouldn't be necessary in practice */
b interrupt_return
- GEN_KVM h_facility_unavailable
-
EXC_REAL_NONE(0xfa0, 0x20)
EXC_VIRT_NONE(0x4fa0, 0x20)
@@ -2462,8 +2380,6 @@ EXC_COMMON_BEGIN(cbe_system_error_common)
bl cbe_system_error_exception
b interrupt_return
- GEN_KVM cbe_system_error
-
#else /* CONFIG_CBE_RAS */
EXC_REAL_NONE(0x1200, 0x100)
EXC_VIRT_NONE(0x5200, 0x100)
@@ -2489,8 +2405,6 @@ EXC_COMMON_BEGIN(instruction_breakpoint_common)
bl instruction_breakpoint_exception
b interrupt_return
- GEN_KVM instruction_breakpoint
-
EXC_REAL_NONE(0x1400, 0x100)
EXC_VIRT_NONE(0x5400, 0x100)
@@ -2611,8 +2525,6 @@ EXC_COMMON_BEGIN(denorm_exception_common)
bl unknown_exception
b interrupt_return
- GEN_KVM denorm_exception
-
#ifdef CONFIG_CBE_RAS
INT_DEFINE_BEGIN(cbe_maintenance)
@@ -2630,8 +2542,6 @@ EXC_COMMON_BEGIN(cbe_maintenance_common)
bl cbe_maintenance_exception
b interrupt_return
- GEN_KVM cbe_maintenance
-
#else /* CONFIG_CBE_RAS */
EXC_REAL_NONE(0x1600, 0x100)
EXC_VIRT_NONE(0x5600, 0x100)
@@ -2662,8 +2572,6 @@ EXC_COMMON_BEGIN(altivec_assist_common)
#endif
b interrupt_return
- GEN_KVM altivec_assist
-
#ifdef CONFIG_CBE_RAS
INT_DEFINE_BEGIN(cbe_thermal)
@@ -2681,8 +2589,6 @@ EXC_COMMON_BEGIN(cbe_thermal_common)
bl cbe_thermal_exception
b interrupt_return
- GEN_KVM cbe_thermal
-
#else /* CONFIG_CBE_RAS */
EXC_REAL_NONE(0x1800, 0x100)
EXC_VIRT_NONE(0x5800, 0x100)
@@ -2935,6 +2841,15 @@ TRAMP_REAL_BEGIN(rfscv_flush_fallback)
USE_TEXT_SECTION()
+#ifdef CONFIG_KVM_BOOK3S_64_HANDLER
+kvm_interrupt:
+ /*
+ * The conditional branch in KVMTEST can't reach all the way,
+ * make a stub.
+ */
+ b kvmppc_interrupt
+#endif
+
_GLOBAL(do_uaccess_flush)
UACCESS_FLUSH_FIXUP_SECTION
nop
diff --git a/arch/powerpc/kvm/book3s_64_entry.S b/arch/powerpc/kvm/book3s_64_entry.S
index f527e16707db..2c9d106145e8 100644
--- a/arch/powerpc/kvm/book3s_64_entry.S
+++ b/arch/powerpc/kvm/book3s_64_entry.S
@@ -44,15 +44,61 @@ END_FTR_SECTION_IFSET(CPU_FTR_HAS_PPR)
sldi r12,r10,32
ori r12,r12,0xc00
ld r10,PACA_EXGEN+EX_R10(r13)
+ b do_kvm_interrupt
+/*
+ * KVM interrupt entry occurs after GEN_INT_ENTRY runs, and follows that
+ * call convention:
+ *
+ * guest R9-R13, CTR, CFAR, PPR saved in PACA EX_xxx save area
+ * guest (H)DAR, (H)DSISR are also in the save area for relevant interrupts
+ * guest R13 also saved in SCRATCH0
+ * R13 = PACA
+ * R11 = (H)SRR0
+ * R12 = (H)SRR1
+ * R9 = guest CR
+ * PPR is set to medium
+ *
+ * With the addition for KVM:
+ * R10 = trap vector
+ */
.global kvmppc_interrupt
.balign IFETCH_ALIGN_BYTES
kvmppc_interrupt:
+ li r11,PACA_EXGEN
+ cmpdi r10,0x200
+ bgt+ 1f
+ li r11,PACA_EXMC
+ beq 1f
+ li r11,PACA_EXNMI
+1: add r11,r11,r13
+
+BEGIN_FTR_SECTION
+ ld r12,EX_CFAR(r11)
+ std r12,HSTATE_CFAR(r13)
+END_FTR_SECTION_IFSET(CPU_FTR_CFAR)
+ ld r12,EX_CTR(r11)
+ mtctr r12
+BEGIN_FTR_SECTION
+ ld r12,EX_PPR(r11)
+ std r12,HSTATE_PPR(r13)
+END_FTR_SECTION_IFSET(CPU_FTR_HAS_PPR)
+ ld r12,EX_R12(r11)
+ std r12,HSTATE_SCRATCH0(r13)
+ sldi r12,r9,32
+ or r12,r12,r10
+ ld r9,EX_R9(r11)
+ ld r10,EX_R10(r11)
+ ld r11,EX_R11(r11)
+
+do_kvm_interrupt:
/*
- * Register contents:
+ * Hcalls and other interrupts come here after normalising register
+ * contents and save locations:
+ *
* R12 = (guest CR << 32) | interrupt vector
* R13 = PACA
- * guest R12 saved in shadow VCPU SCRATCH0
+ * guest R12 saved in shadow HSTATE_SCRATCH0
* guest R13 saved in SPRN_SCRATCH0
*/
std r9,HSTATE_SCRATCH2(r13)
--
2.23.0
next prev parent reply other threads:[~2021-04-05 1:27 UTC|newest]
Thread overview: 130+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-05 1:19 [PATCH v6 00/48] KVM: PPC: Book3S: C-ify the P9 entry/exit code Nicholas Piggin
2021-04-05 1:19 ` Nicholas Piggin
2021-04-05 1:19 ` [PATCH v6 01/48] KVM: PPC: Book3S HV: Nested move LPCR sanitising to sanitise_hv_regs Nicholas Piggin
2021-04-05 1:19 ` Nicholas Piggin
2021-04-05 1:19 ` [PATCH v6 02/48] KVM: PPC: Book3S HV: Add a function to filter guest LPCR bits Nicholas Piggin
2021-04-05 1:19 ` Nicholas Piggin
2021-04-05 1:19 ` [PATCH v6 03/48] KVM: PPC: Book3S HV: Disallow LPCR[AIL] to be set to 1 or 2 Nicholas Piggin
2021-04-05 1:19 ` Nicholas Piggin
2021-04-05 1:19 ` [PATCH v6 04/48] KVM: PPC: Book3S HV: Prevent radix guests setting LPCR[TC] Nicholas Piggin
2021-04-05 1:19 ` Nicholas Piggin
2021-04-05 1:19 ` [PATCH v6 05/48] KVM: PPC: Book3S HV: Remove redundant mtspr PSPB Nicholas Piggin
2021-04-05 1:19 ` Nicholas Piggin
2021-04-05 1:19 ` [PATCH v6 06/48] KVM: PPC: Book3S HV: remove unused kvmppc_h_protect argument Nicholas Piggin
2021-04-05 1:19 ` Nicholas Piggin
2021-04-05 1:19 ` [PATCH v6 07/48] KVM: PPC: Book3S HV: Fix CONFIG_SPAPR_TCE_IOMMU=n default hcalls Nicholas Piggin
2021-04-05 1:19 ` Nicholas Piggin
2021-04-05 1:19 ` [PATCH v6 08/48] powerpc/64s: Remove KVM handler support from CBE_RAS interrupts Nicholas Piggin
2021-04-05 1:19 ` Nicholas Piggin
2021-04-05 1:19 ` [PATCH v6 09/48] powerpc/64s: remove KVM SKIP test from instruction breakpoint handler Nicholas Piggin
2021-04-05 1:19 ` Nicholas Piggin
2021-04-06 2:44 ` Nicholas Piggin
2021-04-06 2:44 ` Nicholas Piggin
2021-04-06 4:17 ` Paul Mackerras
2021-04-06 4:17 ` Paul Mackerras
2021-04-05 1:19 ` [PATCH v6 10/48] KVM: PPC: Book3S HV: Ensure MSR[ME] is always set in guest MSR Nicholas Piggin
2021-04-05 1:19 ` Nicholas Piggin
2021-04-05 1:19 ` [PATCH v6 11/48] KVM: PPC: Book3S HV: Ensure MSR[HV] is always clear " Nicholas Piggin
2021-04-05 1:19 ` Nicholas Piggin
2021-04-05 1:19 ` [PATCH v6 12/48] KVM: PPC: Book3S 64: move KVM interrupt entry to a common entry point Nicholas Piggin
2021-04-05 1:19 ` Nicholas Piggin
2021-04-05 1:19 ` [PATCH v6 13/48] KVM: PPC: Book3S 64: Move GUEST_MODE_SKIP test into KVM Nicholas Piggin
2021-04-05 1:19 ` Nicholas Piggin
2021-04-05 1:19 ` [PATCH v6 14/48] KVM: PPC: Book3S 64: add hcall interrupt handler Nicholas Piggin
2021-04-05 1:19 ` Nicholas Piggin
2021-04-05 1:19 ` [PATCH v6 15/48] KVM: PPC: Book3S 64: Move hcall early register setup to KVM Nicholas Piggin
2021-04-05 1:19 ` Nicholas Piggin
2021-04-05 1:19 ` Nicholas Piggin [this message]
2021-04-05 1:19 ` [PATCH v6 16/48] KVM: PPC: Book3S 64: Move interrupt " Nicholas Piggin
2021-04-06 4:37 ` Paul Mackerras
2021-04-06 4:37 ` Paul Mackerras
2021-04-06 7:04 ` Nicholas Piggin
2021-04-06 7:04 ` Nicholas Piggin
2021-04-05 1:19 ` [PATCH v6 17/48] KVM: PPC: Book3S 64: move bad_host_intr check to HV handler Nicholas Piggin
2021-04-05 1:19 ` Nicholas Piggin
2021-04-05 1:19 ` [PATCH v6 18/48] KVM: PPC: Book3S 64: Minimise hcall handler calling convention differences Nicholas Piggin
2021-04-05 1:19 ` Nicholas Piggin
2021-04-05 1:19 ` [PATCH v6 19/48] KVM: PPC: Book3S HV P9: Move radix MMU switching instructions together Nicholas Piggin
2021-04-05 1:19 ` Nicholas Piggin
2021-04-05 1:19 ` [PATCH v6 20/48] KVM: PPC: Book3S HV P9: implement kvmppc_xive_pull_vcpu in C Nicholas Piggin
2021-04-05 1:19 ` Nicholas Piggin
2021-04-05 1:19 ` [PATCH v6 21/48] KVM: PPC: Book3S HV P9: Move xive vcpu context management into kvmhv_p9_guest_entry Nicholas Piggin
2021-04-05 1:19 ` Nicholas Piggin
2021-04-05 1:19 ` [PATCH v6 22/48] KVM: PPC: Book3S HV P9: Stop handling hcalls in real-mode in the P9 path Nicholas Piggin
2021-04-05 1:19 ` Nicholas Piggin
2021-04-05 1:19 ` [PATCH v6 23/48] KVM: PPC: Book3S HV P9: Move setting HDEC after switching to guest LPCR Nicholas Piggin
2021-04-05 1:19 ` Nicholas Piggin
2021-04-05 1:19 ` [PATCH v6 24/48] KVM: PPC: Book3S HV P9: Use large decrementer for HDEC Nicholas Piggin
2021-04-05 1:19 ` Nicholas Piggin
2021-04-05 1:19 ` [PATCH v6 25/48] KVM: PPC: Book3S HV P9: Use host timer accounting to avoid decrementer read Nicholas Piggin
2021-04-05 1:19 ` Nicholas Piggin
2021-04-05 1:19 ` [PATCH v6 26/48] KVM: PPC: Book3S HV P9: Reduce mftb per guest entry/exit Nicholas Piggin
2021-04-05 1:19 ` Nicholas Piggin
2021-04-05 1:19 ` [PATCH v6 27/48] KVM: PPC: Book3S HV P9: Reduce irq_work vs guest decrementer races Nicholas Piggin
2021-04-05 1:19 ` Nicholas Piggin
2021-04-05 1:19 ` [PATCH v6 28/48] KMV: PPC: Book3S HV: Use set_dec to set decrementer to host Nicholas Piggin
2021-04-05 1:19 ` Nicholas Piggin
2021-04-05 1:19 ` [PATCH v6 29/48] powerpc/time: add API for KVM to re-arm the host timer/decrementer Nicholas Piggin
2021-04-05 1:19 ` Nicholas Piggin
2021-04-05 1:19 ` [PATCH v6 30/48] KVM: PPC: Book3S HV P9: Implement the rest of the P9 path in C Nicholas Piggin
2021-04-05 1:19 ` Nicholas Piggin
2021-04-06 7:27 ` Paul Mackerras
2021-04-06 7:27 ` Paul Mackerras
2021-04-06 9:12 ` Nicholas Piggin
2021-04-06 9:12 ` Nicholas Piggin
2021-04-06 13:02 ` Nicholas Piggin
2021-04-06 13:02 ` Nicholas Piggin
2021-04-09 3:57 ` Alexey Kardashevskiy
2021-04-09 3:57 ` Alexey Kardashevskiy
2021-04-10 0:37 ` Nicholas Piggin
2021-04-10 0:37 ` Nicholas Piggin
2021-04-05 1:19 ` [PATCH v6 31/48] KVM: PPC: Book3S HV P9: inline kvmhv_load_hv_regs_and_go into __kvmhv_vcpu_entry_p9 Nicholas Piggin
2021-04-05 1:19 ` Nicholas Piggin
2021-04-05 1:19 ` [PATCH v6 32/48] KVM: PPC: Book3S HV P9: Read machine check registers while MSR[RI] is 0 Nicholas Piggin
2021-04-05 1:19 ` Nicholas Piggin
2021-04-09 8:55 ` Alexey Kardashevskiy
2021-04-09 8:55 ` Alexey Kardashevskiy
2021-04-10 0:39 ` Nicholas Piggin
2021-04-10 0:39 ` Nicholas Piggin
2021-04-05 1:19 ` [PATCH v6 33/48] KVM: PPC: Book3S HV P9: Improve exit timing accounting coverage Nicholas Piggin
2021-04-05 1:19 ` Nicholas Piggin
2021-04-09 9:40 ` Alexey Kardashevskiy
2021-04-09 9:40 ` Alexey Kardashevskiy
2021-04-05 1:19 ` [PATCH v6 34/48] KVM: PPC: Book3S HV P9: Move SPR loading after expiry time check Nicholas Piggin
2021-04-05 1:19 ` Nicholas Piggin
2021-04-05 1:19 ` [PATCH v6 35/48] KVM: PPC: Book3S HV P9: Add helpers for OS SPR handling Nicholas Piggin
2021-04-05 1:19 ` Nicholas Piggin
2021-04-05 1:19 ` [PATCH v6 36/48] KVM: PPC: Book3S HV P9: Switch to guest MMU context as late as possible Nicholas Piggin
2021-04-05 1:19 ` Nicholas Piggin
2021-04-05 1:19 ` [PATCH v6 37/48] KVM: PPC: Book3S HV: Implement radix prefetch workaround by disabling MMU Nicholas Piggin
2021-04-05 1:19 ` Nicholas Piggin
2021-04-05 1:19 ` [PATCH v6 38/48] KVM: PPC: Book3S HV: Remove support for dependent threads mode on P9 Nicholas Piggin
2021-04-05 1:19 ` Nicholas Piggin
2021-04-07 6:51 ` Paul Mackerras
2021-04-07 6:51 ` Paul Mackerras
2021-04-07 7:44 ` Nicholas Piggin
2021-04-07 7:44 ` Nicholas Piggin
2021-04-07 9:35 ` Nicholas Piggin
2021-04-07 9:35 ` Nicholas Piggin
2021-04-05 1:19 ` [PATCH v6 39/48] KVM: PPC: Book3S HV: Remove radix guest support from P7/8 path Nicholas Piggin
2021-04-05 1:19 ` Nicholas Piggin
2021-04-05 1:19 ` [PATCH v6 40/48] KVM: PPC: Book3S HV: Remove virt mode checks from real mode handlers Nicholas Piggin
2021-04-05 1:19 ` Nicholas Piggin
2021-04-05 1:19 ` [PATCH v6 41/48] KVM: PPC: Book3S HV: Remove unused nested HV tests in XICS emulation Nicholas Piggin
2021-04-05 1:19 ` Nicholas Piggin
2021-04-05 1:19 ` [PATCH v6 42/48] KVM: PPC: Book3S HV P9: Allow all P9 processors to enable nested HV Nicholas Piggin
2021-04-05 1:19 ` Nicholas Piggin
2021-04-05 1:19 ` [PATCH v6 43/48] KVM: PPC: Book3S HV: small pseries_do_hcall cleanup Nicholas Piggin
2021-04-05 1:19 ` Nicholas Piggin
2021-04-05 1:19 ` [PATCH v6 44/48] KVM: PPC: Book3S HV: add virtual mode handlers for HPT hcalls and page faults Nicholas Piggin
2021-04-05 1:19 ` Nicholas Piggin
2021-04-05 1:19 ` [PATCH v6 45/48] KVM: PPC: Book3S HV P9: Reflect userspace hcalls to hash guests to support PR KVM Nicholas Piggin
2021-04-05 1:19 ` Nicholas Piggin
2021-04-05 1:19 ` [PATCH v6 46/48] KVM: PPC: Book3S HV P9: implement hash guest support Nicholas Piggin
2021-04-05 1:19 ` Nicholas Piggin
2021-04-05 1:19 ` [PATCH v6 47/48] KVM: PPC: Book3S HV P9: implement hash host / " Nicholas Piggin
2021-04-05 1:19 ` Nicholas Piggin
2021-04-05 1:19 ` [PATCH v6 48/48] KVM: PPC: Book3S HV: remove ISA v3.0 and v3.1 support from P7/8 path Nicholas Piggin
2021-04-05 1:19 ` Nicholas Piggin
2021-04-08 7:33 ` [PATCH v6 00/48] KVM: PPC: Book3S: C-ify the P9 entry/exit code Nicholas Piggin
2021-04-08 7:33 ` Nicholas Piggin
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