Merge tag 'noinstr-x86-kvm-2020-05-16' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into HEAD

7 files changed, 28 insertions, 20 deletions

diff --git a/arch/powerpc/include/asm/module.h b/arch/powerpc/include/asm/module.h
index 356658711a86..5398bfc465b4 100644
--- a/arch/powerpc/include/asm/module.h
+++ b/arch/powerpc/include/asm/module.h
@@ -3,28 +3,10 @@
 #define _ASM_POWERPC_MODULE_H
 #ifdef __KERNEL__
 
-/*
- */
-
 #include <linux/list.h>
 #include <asm/bug.h>
 #include <asm-generic/module.h>
 
-
-#ifdef CONFIG_MPROFILE_KERNEL
-#define MODULE_ARCH_VERMAGIC_FTRACE	"mprofile-kernel "
-#else
-#define MODULE_ARCH_VERMAGIC_FTRACE	""
-#endif
-
-#ifdef CONFIG_RELOCATABLE
-#define MODULE_ARCH_VERMAGIC_RELOCATABLE	"relocatable "
-#else
-#define MODULE_ARCH_VERMAGIC_RELOCATABLE	""
-#endif
-
-#define MODULE_ARCH_VERMAGIC MODULE_ARCH_VERMAGIC_FTRACE MODULE_ARCH_VERMAGIC_RELOCATABLE
-
 #ifndef __powerpc64__
 /*
  * Thanks to Paul M for explaining this.
diff --git a/arch/powerpc/include/asm/vermagic.h b/arch/powerpc/include/asm/vermagic.h
new file mode 100644
index 000000000000..b054a8576e5d
--- /dev/null
+++ b/arch/powerpc/include/asm/vermagic.h
@@ -0,0 +1,20 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_VERMAGIC_H
+#define _ASM_VERMAGIC_H
+
+#ifdef CONFIG_MPROFILE_KERNEL
+#define MODULE_ARCH_VERMAGIC_FTRACE	"mprofile-kernel "
+#else
+#define MODULE_ARCH_VERMAGIC_FTRACE	""
+#endif
+
+#ifdef CONFIG_RELOCATABLE
+#define MODULE_ARCH_VERMAGIC_RELOCATABLE	"relocatable "
+#else
+#define MODULE_ARCH_VERMAGIC_RELOCATABLE	""
+#endif
+
+#define MODULE_ARCH_VERMAGIC \
+		MODULE_ARCH_VERMAGIC_FTRACE MODULE_ARCH_VERMAGIC_RELOCATABLE
+
+#endif /* _ASM_VERMAGIC_H */
diff --git a/arch/powerpc/kernel/entry_32.S b/arch/powerpc/kernel/entry_32.S
index a6371fb8f761..8420abd4ea1c 100644
--- a/arch/powerpc/kernel/entry_32.S
+++ b/arch/powerpc/kernel/entry_32.S
@@ -732,7 +732,7 @@ END_FTR_SECTION_IFSET(CPU_FTR_SPE)
 	stw	r10,_CCR(r1)
 	stw	r1,KSP(r3)	/* Set old stack pointer */
 
-	kuap_check r2, r4
+	kuap_check r2, r0
 #ifdef CONFIG_SMP
 	/* We need a sync somewhere here to make sure that if the
 	 * previous task gets rescheduled on another CPU, it sees all
diff --git a/arch/powerpc/kernel/setup_64.c b/arch/powerpc/kernel/setup_64.c
index 438a9befce41..8105010b0e76 100644
--- a/arch/powerpc/kernel/setup_64.c
+++ b/arch/powerpc/kernel/setup_64.c
@@ -534,6 +534,8 @@ static bool __init parse_cache_info(struct device_node *np,
 	lsizep = of_get_property(np, propnames[3], NULL);
 	if (bsizep == NULL)
 		bsizep = lsizep;
+	if (lsizep == NULL)
+		lsizep = bsizep;
 	if (lsizep != NULL)
 		lsize = be32_to_cpu(*lsizep);
 	if (bsizep != NULL)
diff --git a/arch/powerpc/kernel/vmlinux.lds.S b/arch/powerpc/kernel/vmlinux.lds.S
index 31a0f201fb6f..a1706b63b82d 100644
--- a/arch/powerpc/kernel/vmlinux.lds.S
+++ b/arch/powerpc/kernel/vmlinux.lds.S
@@ -90,6 +90,7 @@ SECTIONS
 #ifdef CONFIG_PPC64
 		*(.tramp.ftrace.text);
 #endif
+		NOINSTR_TEXT
 		SCHED_TEXT
 		CPUIDLE_TEXT
 		LOCK_TEXT
diff --git a/arch/powerpc/mm/nohash/8xx.c b/arch/powerpc/mm/nohash/8xx.c
index 3189308dece4..d83a12c5bc7f 100644
--- a/arch/powerpc/mm/nohash/8xx.c
+++ b/arch/powerpc/mm/nohash/8xx.c
@@ -185,6 +185,7 @@ void mmu_mark_initmem_nx(void)
 			mmu_mapin_ram_chunk(etext8, einittext8, PAGE_KERNEL);
 		}
 	}
+	_tlbil_all();
 }
 
 #ifdef CONFIG_STRICT_KERNEL_RWX
@@ -199,6 +200,8 @@ void mmu_mark_rodata_ro(void)
 				      ~(LARGE_PAGE_SIZE_8M - 1)));
 	mmu_patch_addis(&patch__dtlbmiss_romem_top, -__pa(_sinittext));
 
+	_tlbil_all();
+
 	/* Update page tables for PTDUMP and BDI */
 	mmu_mapin_ram_chunk(0, sinittext, __pgprot(0));
 	mmu_mapin_ram_chunk(0, etext, PAGE_KERNEL_ROX);
diff --git a/arch/powerpc/platforms/Kconfig.cputype b/arch/powerpc/platforms/Kconfig.cputype
index 0c3c1902135c..27a81c291be8 100644
--- a/arch/powerpc/platforms/Kconfig.cputype
+++ b/arch/powerpc/platforms/Kconfig.cputype
@@ -397,7 +397,7 @@ config PPC_KUAP
 
 config PPC_KUAP_DEBUG
 	bool "Extra debugging for Kernel Userspace Access Protection"
-	depends on PPC_KUAP && (PPC_RADIX_MMU || PPC_32)
+	depends on PPC_KUAP && (PPC_RADIX_MMU || PPC32)
 	help
 	  Add extra debugging for Kernel Userspace Access Protection (KUAP)
 	  If you're unsure, say N.