From: Florian Fainelli <f.fainelli@gmail.com>
To: linux-arm-kernel@lists.infradead.org
Cc: mark.rutland@arm.com, alexandre.belloni@bootlin.com,
mhocko@suse.com, julien.thierry@arm.com, catalin.marinas@arm.com,
linux-kernel@vger.kernel.org, dhowells@redhat.com,
yamada.masahiro@socionext.com, ryabinin.a.a@gmail.com,
glider@google.com, kvmarm@lists.cs.columbia.edu,
Florian Fainelli <f.fainelli@gmail.com>,
corbet@lwn.net, Abbott Liu <liuwenliang@huawei.com>,
daniel.lezcano@linaro.org, linux@armlinux.org.uk,
kasan-dev@googlegroups.com,
bcm-kernel-feedback-list@broadcom.com,
Andrey Ryabinin <aryabinin@virtuozzo.com>,
drjones@redhat.com, vladimir.murzin@arm.com,
keescook@chromium.org, arnd@arndb.de, marc.zyngier@arm.com,
andre.przywara@arm.com, philip@cog.systems, jinb.park7@gmail.com,
tglx@linutronix.de, dvyukov@google.com, nico@fluxnic.net,
gregkh@linuxfoundation.org, ard.biesheuvel@linaro.org,
linux-doc@vger.kernel.org, christoffer.dall@arm.com,
geert@linux-m68k.org, rob@landley.net, pombredanne@nexb.com,
akpm@linux-foundation.org, thgarnie@google.com,
kirill.shutemov@linux.intel.com
Subject: [PATCH v6 1/6] ARM: Add TTBR operator for kasan_init
Date: Mon, 17 Jun 2019 15:11:29 -0700 [thread overview]
Message-ID: <20190617221134.9930-2-f.fainelli@gmail.com> (raw)
In-Reply-To: <20190617221134.9930-1-f.fainelli@gmail.com>
From: Abbott Liu <liuwenliang@huawei.com>
The purpose of this patch is to provide set_ttbr0/get_ttbr0 to
kasan_init function. The definitions of cp15 registers should be in
arch/arm/include/asm/cp15.h rather than arch/arm/include/asm/kvm_hyp.h,
so move them.
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Reported-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Abbott Liu <liuwenliang@huawei.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
---
arch/arm/include/asm/cp15.h | 106 +++++++++++++++++++++++++++++++++
arch/arm/include/asm/kvm_hyp.h | 54 -----------------
arch/arm/kvm/hyp/cp15-sr.c | 12 ++--
arch/arm/kvm/hyp/switch.c | 6 +-
4 files changed, 115 insertions(+), 63 deletions(-)
diff --git a/arch/arm/include/asm/cp15.h b/arch/arm/include/asm/cp15.h
index d2453e2d3f1f..0b0ac5170ee7 100644
--- a/arch/arm/include/asm/cp15.h
+++ b/arch/arm/include/asm/cp15.h
@@ -3,6 +3,7 @@
#define __ASM_ARM_CP15_H
#include <asm/barrier.h>
+#include <linux/stringify.h>
/*
* CR1 bits (CP#15 CR1)
@@ -70,8 +71,113 @@
#define CNTVCT __ACCESS_CP15_64(1, c14)
+#define TTBR0_32 __ACCESS_CP15(c2, 0, c0, 0)
+#define TTBR1_32 __ACCESS_CP15(c2, 0, c0, 1)
+#define PAR_32 __ACCESS_CP15(c7, 0, c4, 0)
+#define TTBR0_64 __ACCESS_CP15_64(0, c2)
+#define TTBR1_64 __ACCESS_CP15_64(1, c2)
+#define PAR_64 __ACCESS_CP15_64(0, c7)
+#define VTTBR __ACCESS_CP15_64(6, c2)
+#define CNTP_CVAL __ACCESS_CP15_64(2, c14)
+#define CNTV_CVAL __ACCESS_CP15_64(3, c14)
+#define CNTVOFF __ACCESS_CP15_64(4, c14)
+
+#define MIDR __ACCESS_CP15(c0, 0, c0, 0)
+#define CSSELR __ACCESS_CP15(c0, 2, c0, 0)
+#define VPIDR __ACCESS_CP15(c0, 4, c0, 0)
+#define VMPIDR __ACCESS_CP15(c0, 4, c0, 5)
+#define SCTLR __ACCESS_CP15(c1, 0, c0, 0)
+#define CPACR __ACCESS_CP15(c1, 0, c0, 2)
+#define HCR __ACCESS_CP15(c1, 4, c1, 0)
+#define HDCR __ACCESS_CP15(c1, 4, c1, 1)
+#define HCPTR __ACCESS_CP15(c1, 4, c1, 2)
+#define HSTR __ACCESS_CP15(c1, 4, c1, 3)
+#define TTBCR __ACCESS_CP15(c2, 0, c0, 2)
+#define HTCR __ACCESS_CP15(c2, 4, c0, 2)
+#define VTCR __ACCESS_CP15(c2, 4, c1, 2)
+#define DACR __ACCESS_CP15(c3, 0, c0, 0)
+#define DFSR __ACCESS_CP15(c5, 0, c0, 0)
+#define IFSR __ACCESS_CP15(c5, 0, c0, 1)
+#define ADFSR __ACCESS_CP15(c5, 0, c1, 0)
+#define AIFSR __ACCESS_CP15(c5, 0, c1, 1)
+#define HSR __ACCESS_CP15(c5, 4, c2, 0)
+#define DFAR __ACCESS_CP15(c6, 0, c0, 0)
+#define IFAR __ACCESS_CP15(c6, 0, c0, 2)
+#define HDFAR __ACCESS_CP15(c6, 4, c0, 0)
+#define HIFAR __ACCESS_CP15(c6, 4, c0, 2)
+#define HPFAR __ACCESS_CP15(c6, 4, c0, 4)
+#define ICIALLUIS __ACCESS_CP15(c7, 0, c1, 0)
+#define BPIALLIS __ACCESS_CP15(c7, 0, c1, 6)
+#define ICIMVAU __ACCESS_CP15(c7, 0, c5, 1)
+#define ATS1CPR __ACCESS_CP15(c7, 0, c8, 0)
+#define TLBIALLIS __ACCESS_CP15(c8, 0, c3, 0)
+#define TLBIALL __ACCESS_CP15(c8, 0, c7, 0)
+#define TLBIALLNSNHIS __ACCESS_CP15(c8, 4, c3, 4)
+#define PRRR __ACCESS_CP15(c10, 0, c2, 0)
+#define NMRR __ACCESS_CP15(c10, 0, c2, 1)
+#define AMAIR0 __ACCESS_CP15(c10, 0, c3, 0)
+#define AMAIR1 __ACCESS_CP15(c10, 0, c3, 1)
+#define VBAR __ACCESS_CP15(c12, 0, c0, 0)
+#define CID __ACCESS_CP15(c13, 0, c0, 1)
+#define TID_URW __ACCESS_CP15(c13, 0, c0, 2)
+#define TID_URO __ACCESS_CP15(c13, 0, c0, 3)
+#define TID_PRIV __ACCESS_CP15(c13, 0, c0, 4)
+#define HTPIDR __ACCESS_CP15(c13, 4, c0, 2)
+#define CNTKCTL __ACCESS_CP15(c14, 0, c1, 0)
+#define CNTP_CTL __ACCESS_CP15(c14, 0, c2, 1)
+#define CNTV_CTL __ACCESS_CP15(c14, 0, c3, 1)
+#define CNTHCTL __ACCESS_CP15(c14, 4, c1, 0)
+
extern unsigned long cr_alignment; /* defined in entry-armv.S */
+static inline void set_par(u64 val)
+{
+ if (IS_ENABLED(CONFIG_ARM_LPAE))
+ write_sysreg(val, PAR_64);
+ else
+ write_sysreg(val, PAR_32);
+}
+
+static inline u64 get_par(void)
+{
+ if (IS_ENABLED(CONFIG_ARM_LPAE))
+ return read_sysreg(PAR_64);
+ else
+ return read_sysreg(PAR_32);
+}
+
+static inline void set_ttbr0(u64 val)
+{
+ if (IS_ENABLED(CONFIG_ARM_LPAE))
+ write_sysreg(val, TTBR0_64);
+ else
+ write_sysreg(val, TTBR0_32);
+}
+
+static inline u64 get_ttbr0(void)
+{
+ if (IS_ENABLED(CONFIG_ARM_LPAE))
+ return read_sysreg(TTBR0_64);
+ else
+ return read_sysreg(TTBR0_32);
+}
+
+static inline void set_ttbr1(u64 val)
+{
+ if (IS_ENABLED(CONFIG_ARM_LPAE))
+ write_sysreg(val, TTBR1_64);
+ else
+ write_sysreg(val, TTBR1_32);
+}
+
+static inline u64 get_ttbr1(void)
+{
+ if (IS_ENABLED(CONFIG_ARM_LPAE))
+ return read_sysreg(TTBR1_64);
+ else
+ return read_sysreg(TTBR1_32);
+}
+
static inline unsigned long get_cr(void)
{
unsigned long val;
diff --git a/arch/arm/include/asm/kvm_hyp.h b/arch/arm/include/asm/kvm_hyp.h
index 87bcd18df8d5..484d35e5bb36 100644
--- a/arch/arm/include/asm/kvm_hyp.h
+++ b/arch/arm/include/asm/kvm_hyp.h
@@ -36,60 +36,6 @@
__val; \
})
-#define TTBR0 __ACCESS_CP15_64(0, c2)
-#define TTBR1 __ACCESS_CP15_64(1, c2)
-#define VTTBR __ACCESS_CP15_64(6, c2)
-#define PAR __ACCESS_CP15_64(0, c7)
-#define CNTP_CVAL __ACCESS_CP15_64(2, c14)
-#define CNTV_CVAL __ACCESS_CP15_64(3, c14)
-#define CNTVOFF __ACCESS_CP15_64(4, c14)
-
-#define MIDR __ACCESS_CP15(c0, 0, c0, 0)
-#define CSSELR __ACCESS_CP15(c0, 2, c0, 0)
-#define VPIDR __ACCESS_CP15(c0, 4, c0, 0)
-#define VMPIDR __ACCESS_CP15(c0, 4, c0, 5)
-#define SCTLR __ACCESS_CP15(c1, 0, c0, 0)
-#define CPACR __ACCESS_CP15(c1, 0, c0, 2)
-#define HCR __ACCESS_CP15(c1, 4, c1, 0)
-#define HDCR __ACCESS_CP15(c1, 4, c1, 1)
-#define HCPTR __ACCESS_CP15(c1, 4, c1, 2)
-#define HSTR __ACCESS_CP15(c1, 4, c1, 3)
-#define TTBCR __ACCESS_CP15(c2, 0, c0, 2)
-#define HTCR __ACCESS_CP15(c2, 4, c0, 2)
-#define VTCR __ACCESS_CP15(c2, 4, c1, 2)
-#define DACR __ACCESS_CP15(c3, 0, c0, 0)
-#define DFSR __ACCESS_CP15(c5, 0, c0, 0)
-#define IFSR __ACCESS_CP15(c5, 0, c0, 1)
-#define ADFSR __ACCESS_CP15(c5, 0, c1, 0)
-#define AIFSR __ACCESS_CP15(c5, 0, c1, 1)
-#define HSR __ACCESS_CP15(c5, 4, c2, 0)
-#define DFAR __ACCESS_CP15(c6, 0, c0, 0)
-#define IFAR __ACCESS_CP15(c6, 0, c0, 2)
-#define HDFAR __ACCESS_CP15(c6, 4, c0, 0)
-#define HIFAR __ACCESS_CP15(c6, 4, c0, 2)
-#define HPFAR __ACCESS_CP15(c6, 4, c0, 4)
-#define ICIALLUIS __ACCESS_CP15(c7, 0, c1, 0)
-#define BPIALLIS __ACCESS_CP15(c7, 0, c1, 6)
-#define ICIMVAU __ACCESS_CP15(c7, 0, c5, 1)
-#define ATS1CPR __ACCESS_CP15(c7, 0, c8, 0)
-#define TLBIALLIS __ACCESS_CP15(c8, 0, c3, 0)
-#define TLBIALL __ACCESS_CP15(c8, 0, c7, 0)
-#define TLBIALLNSNHIS __ACCESS_CP15(c8, 4, c3, 4)
-#define PRRR __ACCESS_CP15(c10, 0, c2, 0)
-#define NMRR __ACCESS_CP15(c10, 0, c2, 1)
-#define AMAIR0 __ACCESS_CP15(c10, 0, c3, 0)
-#define AMAIR1 __ACCESS_CP15(c10, 0, c3, 1)
-#define VBAR __ACCESS_CP15(c12, 0, c0, 0)
-#define CID __ACCESS_CP15(c13, 0, c0, 1)
-#define TID_URW __ACCESS_CP15(c13, 0, c0, 2)
-#define TID_URO __ACCESS_CP15(c13, 0, c0, 3)
-#define TID_PRIV __ACCESS_CP15(c13, 0, c0, 4)
-#define HTPIDR __ACCESS_CP15(c13, 4, c0, 2)
-#define CNTKCTL __ACCESS_CP15(c14, 0, c1, 0)
-#define CNTP_CTL __ACCESS_CP15(c14, 0, c2, 1)
-#define CNTV_CTL __ACCESS_CP15(c14, 0, c3, 1)
-#define CNTHCTL __ACCESS_CP15(c14, 4, c1, 0)
-
#define VFP_FPEXC __ACCESS_VFP(FPEXC)
/* AArch64 compatibility macros, only for the timer so far */
diff --git a/arch/arm/kvm/hyp/cp15-sr.c b/arch/arm/kvm/hyp/cp15-sr.c
index 8bf895ec6e04..efbbd2e8927f 100644
--- a/arch/arm/kvm/hyp/cp15-sr.c
+++ b/arch/arm/kvm/hyp/cp15-sr.c
@@ -30,8 +30,8 @@ void __hyp_text __sysreg_save_state(struct kvm_cpu_context *ctxt)
ctxt->cp15[c0_CSSELR] = read_sysreg(CSSELR);
ctxt->cp15[c1_SCTLR] = read_sysreg(SCTLR);
ctxt->cp15[c1_CPACR] = read_sysreg(CPACR);
- *cp15_64(ctxt, c2_TTBR0) = read_sysreg(TTBR0);
- *cp15_64(ctxt, c2_TTBR1) = read_sysreg(TTBR1);
+ *cp15_64(ctxt, c2_TTBR0) = read_sysreg(TTBR0_64);
+ *cp15_64(ctxt, c2_TTBR1) = read_sysreg(TTBR1_64);
ctxt->cp15[c2_TTBCR] = read_sysreg(TTBCR);
ctxt->cp15[c3_DACR] = read_sysreg(DACR);
ctxt->cp15[c5_DFSR] = read_sysreg(DFSR);
@@ -40,7 +40,7 @@ void __hyp_text __sysreg_save_state(struct kvm_cpu_context *ctxt)
ctxt->cp15[c5_AIFSR] = read_sysreg(AIFSR);
ctxt->cp15[c6_DFAR] = read_sysreg(DFAR);
ctxt->cp15[c6_IFAR] = read_sysreg(IFAR);
- *cp15_64(ctxt, c7_PAR) = read_sysreg(PAR);
+ *cp15_64(ctxt, c7_PAR) = read_sysreg(PAR_64);
ctxt->cp15[c10_PRRR] = read_sysreg(PRRR);
ctxt->cp15[c10_NMRR] = read_sysreg(NMRR);
ctxt->cp15[c10_AMAIR0] = read_sysreg(AMAIR0);
@@ -59,8 +59,8 @@ void __hyp_text __sysreg_restore_state(struct kvm_cpu_context *ctxt)
write_sysreg(ctxt->cp15[c0_CSSELR], CSSELR);
write_sysreg(ctxt->cp15[c1_SCTLR], SCTLR);
write_sysreg(ctxt->cp15[c1_CPACR], CPACR);
- write_sysreg(*cp15_64(ctxt, c2_TTBR0), TTBR0);
- write_sysreg(*cp15_64(ctxt, c2_TTBR1), TTBR1);
+ write_sysreg(*cp15_64(ctxt, c2_TTBR0), TTBR0_64);
+ write_sysreg(*cp15_64(ctxt, c2_TTBR1), TTBR1_64);
write_sysreg(ctxt->cp15[c2_TTBCR], TTBCR);
write_sysreg(ctxt->cp15[c3_DACR], DACR);
write_sysreg(ctxt->cp15[c5_DFSR], DFSR);
@@ -69,7 +69,7 @@ void __hyp_text __sysreg_restore_state(struct kvm_cpu_context *ctxt)
write_sysreg(ctxt->cp15[c5_AIFSR], AIFSR);
write_sysreg(ctxt->cp15[c6_DFAR], DFAR);
write_sysreg(ctxt->cp15[c6_IFAR], IFAR);
- write_sysreg(*cp15_64(ctxt, c7_PAR), PAR);
+ write_sysreg(*cp15_64(ctxt, c7_PAR), PAR_64);
write_sysreg(ctxt->cp15[c10_PRRR], PRRR);
write_sysreg(ctxt->cp15[c10_NMRR], NMRR);
write_sysreg(ctxt->cp15[c10_AMAIR0], AMAIR0);
diff --git a/arch/arm/kvm/hyp/switch.c b/arch/arm/kvm/hyp/switch.c
index 3b058a5d7c5f..be8c8ba0e4b7 100644
--- a/arch/arm/kvm/hyp/switch.c
+++ b/arch/arm/kvm/hyp/switch.c
@@ -134,12 +134,12 @@ static bool __hyp_text __populate_fault_info(struct kvm_vcpu *vcpu)
if (!(hsr & HSR_DABT_S1PTW) && (hsr & HSR_FSC_TYPE) == FSC_PERM) {
u64 par, tmp;
- par = read_sysreg(PAR);
+ par = read_sysreg(PAR_64);
write_sysreg(far, ATS1CPR);
isb();
- tmp = read_sysreg(PAR);
- write_sysreg(par, PAR);
+ tmp = read_sysreg(PAR_64);
+ write_sysreg(par, PAR_64);
if (unlikely(tmp & 1))
return false; /* Translation failed, back to guest */
--
2.17.1
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next prev parent reply other threads:[~2019-06-17 22:12 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-17 22:11 [PATCH v6 0/6] KASan for arm Florian Fainelli
2019-06-17 22:11 ` Florian Fainelli [this message]
2019-07-02 21:03 ` [PATCH v6 1/6] ARM: Add TTBR operator for kasan_init Linus Walleij
2019-07-11 16:54 ` Florian Fainelli
2019-06-17 22:11 ` [PATCH v6 2/6] ARM: Disable instrumentation for some code Florian Fainelli
2019-07-02 21:56 ` Linus Walleij
2019-07-11 16:53 ` Florian Fainelli
2019-06-17 22:11 ` [PATCH v6 3/6] ARM: Replace memory function for kasan Florian Fainelli
2019-06-17 22:11 ` [PATCH v6 4/6] ARM: Define the virtual space of KASan's shadow region Florian Fainelli
2019-06-17 22:11 ` [PATCH v6 5/6] ARM: Initialize the mapping of KASan shadow memory Florian Fainelli
2019-06-17 22:11 ` [PATCH v6 6/6] ARM: Enable KASan for arm Florian Fainelli
2019-07-02 21:06 ` [PATCH v6 0/6] " Linus Walleij
2019-07-11 17:00 ` Florian Fainelli
2019-07-18 7:51 ` Arnd Bergmann
2019-10-07 21:34 ` Florian Fainelli
2019-10-07 22:10 ` Arnd Bergmann
2019-10-08 8:47 ` Linus Walleij
2019-11-14 18:12 ` Marco Felsch
2019-11-14 23:01 ` Florian Fainelli
2019-11-15 7:08 ` Marco Felsch
2019-11-15 11:44 ` Marco Felsch
2019-11-19 0:13 ` Florian Fainelli
2020-01-17 10:13 ` Linus Walleij
2020-01-17 19:55 ` Florian Fainelli
2020-01-17 21:05 ` Linus Walleij
2020-03-05 8:43 ` Linus Walleij
2020-03-05 9:43 ` Marco Felsch
2020-03-20 9:26 ` Linus Walleij
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