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Date: Tue, 26 Nov 2019 21:13:22 +0100
From: Michal Suchanek <msuchanek@...e.de>
To: linuxppc-dev@...ts.ozlabs.org
Cc: Benjamin Herrenschmidt <benh@...nel.crashing.org>,
Paul Mackerras <paulus@...ba.org>,
Michael Ellerman <mpe@...erman.id.au>,
Oleg Nesterov <oleg@...hat.com>,
Alexander Viro <viro@...iv.linux.org.uk>,
Christian Brauner <christian@...uner.io>,
Nicholas Piggin <npiggin@...il.com>,
Allison Randal <allison@...utok.net>,
"Naveen N. Rao" <naveen.n.rao@...ux.vnet.ibm.com>,
Michal Suchanek <msuchanek@...e.de>,
Thomas Gleixner <tglx@...utronix.de>,
Breno Leitao <leitao@...ian.org>,
Christophe Leroy <christophe.leroy@....fr>,
Claudio Carvalho <cclaudio@...ux.ibm.com>,
Russell Currey <ruscur@...sell.cc>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Mahesh Salgaonkar <mahesh@...ux.vnet.ibm.com>,
Arnd Bergmann <arnd@...db.de>,
Geert Uytterhoeven <geert@...ux-m68k.org>,
Firoz Khan <firoz.khan@...aro.org>,
Dmitry Vyukov <dvyukov@...gle.com>,
Masahiro Yamada <yamada.masahiro@...ionext.com>,
Hari Bathini <hbathini@...ux.ibm.com>,
Andrew Donnellan <andrew.donnellan@....ibm.com>,
Nicolai Stange <nstange@...e.de>,
Valentin Schneider <valentin.schneider@....com>,
Diana Craciun <diana.craciun@....com>,
Daniel Axtens <dja@...ens.net>,
Michael Neuling <mikey@...ling.org>,
Gustavo Romero <gromero@...ux.ibm.com>,
Mathieu Malaterre <malat@...ian.org>,
"Steven Rostedt" <rostedt@...dmis.org>,
"Eric W. Biederman" <ebiederm@...ssion.com>,
Heiko Carstens <heiko.carstens@...ibm.com>,
David Howells <dhowells@...hat.com>,
Brajeswar Ghosh <brajeswar.linux@...il.com>,
Jagadeesh Pagadala <jagdsh.linux@...il.com>,
David Hildenbrand <david@...hat.com>,
Andrew Morton <akpm@...ux-foundation.org>,
Madhavan Srinivasan <maddy@...ux.vnet.ibm.com>,
linux-kernel@...r.kernel.org
Subject: [PATCH v2 08/35] powerpc/64s/exception: Remove old INT_KVM_HANDLER
From: Nicholas Piggin <npiggin@...il.com>
Signed-off-by: Nicholas Piggin <npiggin@...il.com>
---
arch/powerpc/kernel/exceptions-64s.S | 55 +++++++++++++---------------
1 file changed, 26 insertions(+), 29 deletions(-)
diff --git a/arch/powerpc/kernel/exceptions-64s.S b/arch/powerpc/kernel/exceptions-64s.S
index f318869607db..bef0c2eee7dc 100644
--- a/arch/powerpc/kernel/exceptions-64s.S
+++ b/arch/powerpc/kernel/exceptions-64s.S
@@ -266,15 +266,6 @@ do_define_int n
.endif
.endm
-.macro INT_KVM_HANDLER name, vec, hsrr, area, skip
- TRAMP_KVM_BEGIN(\name\()_kvm)
- KVM_HANDLER \vec, \hsrr, \area, \skip
-.endm
-
-.macro GEN_KVM name
- KVM_HANDLER IVEC, IHSRR, IAREA, IKVM_SKIP
-.endm
-
#ifdef CONFIG_KVM_BOOK3S_64_HANDLER
#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
/*
@@ -293,35 +284,35 @@ do_define_int n
bne \name\()_kvm
.endm
-.macro KVM_HANDLER vec, hsrr, area, skip
- .if \skip
+.macro GEN_KVM name
+ .if IKVM_SKIP
cmpwi r10,KVM_GUEST_MODE_SKIP
beq 89f
.else
BEGIN_FTR_SECTION_NESTED(947)
- ld r10,\area+EX_CFAR(r13)
+ ld r10,IAREA+EX_CFAR(r13)
std r10,HSTATE_CFAR(r13)
END_FTR_SECTION_NESTED(CPU_FTR_CFAR,CPU_FTR_CFAR,947)
.endif
BEGIN_FTR_SECTION_NESTED(948)
- ld r10,\area+EX_PPR(r13)
+ ld r10,IAREA+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)
+ ld r10,IAREA+EX_R10(r13)
std r12,HSTATE_SCRATCH0(r13)
sldi r12,r9,32
/* HSRR variants have the 0x2 bit added to their trap number */
- .if \hsrr == EXC_HV_OR_STD
+ .if IHSRR == EXC_HV_OR_STD
BEGIN_FTR_SECTION
- ori r12,r12,(\vec + 0x2)
+ ori r12,r12,(IVEC + 0x2)
FTR_SECTION_ELSE
- ori r12,r12,(\vec)
+ ori r12,r12,(IVEC)
ALT_FTR_SECTION_END_IFSET(CPU_FTR_HVMODE | CPU_FTR_ARCH_206)
- .elseif \hsrr
- ori r12,r12,(\vec + 0x2)
+ .elseif IHSRR
+ ori r12,r12,(IVEC+ 0x2)
.else
- ori r12,r12,(\vec)
+ ori r12,r12,(IVEC)
.endif
#ifdef CONFIG_RELOCATABLE
@@ -334,25 +325,25 @@ END_FTR_SECTION_NESTED(CPU_FTR_HAS_PPR,CPU_FTR_HAS_PPR,948)
std r9,HSTATE_SCRATCH1(r13)
__LOAD_FAR_HANDLER(r9, kvmppc_interrupt)
mtctr r9
- ld r9,\area+EX_R9(r13)
+ ld r9,IAREA+EX_R9(r13)
bctr
#else
- ld r9,\area+EX_R9(r13)
+ ld r9,IAREA+EX_R9(r13)
b kvmppc_interrupt
#endif
- .if \skip
+ .if IKVM_SKIP
89: mtocrf 0x80,r9
- ld r9,\area+EX_R9(r13)
- ld r10,\area+EX_R10(r13)
- .if \hsrr == EXC_HV_OR_STD
+ ld r9,IAREA+EX_R9(r13)
+ ld r10,IAREA+EX_R10(r13)
+ .if IHSRR == EXC_HV_OR_STD
BEGIN_FTR_SECTION
b kvmppc_skip_Hinterrupt
FTR_SECTION_ELSE
b kvmppc_skip_interrupt
ALT_FTR_SECTION_END_IFSET(CPU_FTR_HVMODE | CPU_FTR_ARCH_206)
- .elseif \hsrr
+ .elseif IHSRR
b kvmppc_skip_Hinterrupt
.else
b kvmppc_skip_interrupt
@@ -363,7 +354,7 @@ END_FTR_SECTION_NESTED(CPU_FTR_HAS_PPR,CPU_FTR_HAS_PPR,948)
#else
.macro KVMTEST name, hsrr, n
.endm
-.macro KVM_HANDLER name, vec, hsrr, area, skip
+.macro GEN_KVM name
.endm
#endif
@@ -1640,6 +1631,12 @@ EXC_VIRT_NONE(0x4b00, 0x100)
* without saving, though xer is not a good idea to use, as hardware may
* interpret some bits so it may be costly to change them.
*/
+INT_DEFINE_BEGIN(system_call)
+ IVEC=0xc00
+ IKVM_REAL=1
+ IKVM_VIRT=1
+INT_DEFINE_END(system_call)
+
.macro SYSTEM_CALL virt
#ifdef CONFIG_KVM_BOOK3S_64_HANDLER
/*
@@ -1733,7 +1730,7 @@ TRAMP_KVM_BEGIN(system_call_kvm)
SET_SCRATCH0(r10)
std r9,PACA_EXGEN+EX_R9(r13)
mfcr r9
- KVM_HANDLER 0xc00, EXC_STD, PACA_EXGEN, 0
+ GEN_KVM system_call
#endif
--
2.23.0
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