lists.openwall.net   lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  linux-cve-announce  PHC 
Open Source and information security mailing list archives
 
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-Id: <30a4962a03cebc03f0e2100e39b1cadd749174c1.1574803684.git.msuchanek@suse.de>
Date:   Wed, 27 Nov 2019 11:38:44 +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 rebase 08/34] 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

Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ