19 files changed, 164 insertions, 37 deletions
diff --git a/arch/powerpc/include/asm/book3s/64/pgtable.h b/arch/powerpc/include/asm/book3s/64/pgtable.h
index e67e64ac6e8c..f4db7d7fbd5c 100644
--- a/arch/powerpc/include/asm/book3s/64/pgtable.h
+++ b/arch/powerpc/include/asm/book3s/64/pgtable.h
@@ -490,13 +490,13 @@ static inline pte_t pte_clear_soft_dirty(pte_t pte)
 }
 #endif /* CONFIG_HAVE_ARCH_SOFT_DIRTY */
 
-#ifdef CONFIG_NUMA_BALANCING
+#ifdef CONFIG_ARCH_HAS_PTE_PROTNONE
 static inline int pte_protnone(pte_t pte)
 {
 	return (pte_raw(pte) & cpu_to_be64(_PAGE_PRESENT | _PAGE_PTE | _PAGE_RWX)) ==
 		cpu_to_be64(_PAGE_PRESENT | _PAGE_PTE);
 }
-#endif /* CONFIG_NUMA_BALANCING */
+#endif /* CONFIG_ARCH_HAS_PTE_PROTNONE */
 
 static inline bool pte_hw_valid(pte_t pte)
 {
@@ -1060,19 +1060,19 @@ static inline pte_t *pmdp_ptep(pmd_t *pmd)
 #define pmd_mksoft_dirty(pmd)  pte_pmd(pte_mksoft_dirty(pmd_pte(pmd)))
 #define pmd_clear_soft_dirty(pmd) pte_pmd(pte_clear_soft_dirty(pmd_pte(pmd)))
 
-#ifdef CONFIG_ARCH_ENABLE_THP_MIGRATION
+#ifdef CONFIG_ARCH_HAS_PMD_SOFTLEAVES
 #define pmd_swp_mksoft_dirty(pmd)	pte_pmd(pte_swp_mksoft_dirty(pmd_pte(pmd)))
 #define pmd_swp_soft_dirty(pmd)		pte_swp_soft_dirty(pmd_pte(pmd))
 #define pmd_swp_clear_soft_dirty(pmd)	pte_pmd(pte_swp_clear_soft_dirty(pmd_pte(pmd)))
 #endif
 #endif /* CONFIG_HAVE_ARCH_SOFT_DIRTY */
 
-#ifdef CONFIG_NUMA_BALANCING
+#ifdef CONFIG_ARCH_HAS_PTE_PROTNONE
 static inline int pmd_protnone(pmd_t pmd)
 {
 	return pte_protnone(pmd_pte(pmd));
 }
-#endif /* CONFIG_NUMA_BALANCING */
+#endif /* CONFIG_ARCH_HAS_PTE_PROTNONE */
 
 #define pmd_write(pmd)		pte_write(pmd_pte(pmd))
 
diff --git a/arch/powerpc/include/asm/cpu_setup.h b/arch/powerpc/include/asm/cpu_setup.h
index 30e2fe389502..26d2c0e2c99c 100644
--- a/arch/powerpc/include/asm/cpu_setup.h
+++ b/arch/powerpc/include/asm/cpu_setup.h
@@ -9,10 +9,12 @@ void __setup_cpu_power7(unsigned long offset, struct cpu_spec *spec);
 void __setup_cpu_power8(unsigned long offset, struct cpu_spec *spec);
 void __setup_cpu_power9(unsigned long offset, struct cpu_spec *spec);
 void __setup_cpu_power10(unsigned long offset, struct cpu_spec *spec);
+void __setup_cpu_power12(unsigned long offset, struct cpu_spec *spec);
 void __restore_cpu_power7(void);
 void __restore_cpu_power8(void);
 void __restore_cpu_power9(void);
 void __restore_cpu_power10(void);
+void __restore_cpu_power12(void);
 
 void __setup_cpu_e500v1(unsigned long offset, struct cpu_spec *spec);
 void __setup_cpu_e500v2(unsigned long offset, struct cpu_spec *spec);
diff --git a/arch/powerpc/include/asm/cputable.h b/arch/powerpc/include/asm/cputable.h
index ec16c12296da..a3be81c47df3 100644
--- a/arch/powerpc/include/asm/cputable.h
+++ b/arch/powerpc/include/asm/cputable.h
@@ -194,6 +194,7 @@ static inline void cpu_feature_keys_init(void) { }
 #define CPU_FTR_DAWR1			LONG_ASM_CONST(0x0008000000000000)
 #define CPU_FTR_DEXCR_NPHIE		LONG_ASM_CONST(0x0010000000000000)
 #define CPU_FTR_P11_PVR			LONG_ASM_CONST(0x0020000000000000)
+#define CPU_FTR_ARCH_32			LONG_ASM_CONST(0x0040000000000000)
 
 #ifndef __ASSEMBLER__
 
@@ -457,6 +458,18 @@ static inline void cpu_feature_keys_init(void) { }
 
 #define CPU_FTRS_POWER11	(CPU_FTRS_POWER10 | CPU_FTR_P11_PVR)
 
+#define CPU_FTRS_POWER12 (CPU_FTR_LWSYNC | \
+	    CPU_FTR_PPCAS_ARCH_V2 | CPU_FTR_CTRL | CPU_FTR_ARCH_206 |\
+	    CPU_FTR_MMCRA | CPU_FTR_SMT | \
+	    CPU_FTR_COHERENT_ICACHE | \
+	    CPU_FTR_PURR | CPU_FTR_SPURR | CPU_FTR_REAL_LE | \
+	    CPU_FTR_DSCR | \
+	    CPU_FTR_STCX_CHECKS_ADDRESS | CPU_FTR_POPCNTB | CPU_FTR_POPCNTD | \
+	    CPU_FTR_CFAR | CPU_FTR_HVMODE | CPU_FTR_VMX_COPY | \
+	    CPU_FTR_DBELL | CPU_FTR_HAS_PPR | CPU_FTR_ARCH_207S | \
+	    CPU_FTR_ARCH_300 | CPU_FTR_ARCH_31 | CPU_FTR_ARCH_32 | \
+	    CPU_FTR_DAWR | CPU_FTR_DAWR1)
+
 #define CPU_FTRS_CELL	(CPU_FTR_LWSYNC | \
 	    CPU_FTR_PPCAS_ARCH_V2 | CPU_FTR_CTRL | \
 	    CPU_FTR_ALTIVEC_COMP | CPU_FTR_MMCRA | CPU_FTR_SMT | \
@@ -476,7 +489,7 @@ static inline void cpu_feature_keys_init(void) { }
 	    (CPU_FTRS_POWER7 | CPU_FTRS_POWER8E | CPU_FTRS_POWER8 | \
 	     CPU_FTR_ALTIVEC_COMP | CPU_FTR_VSX_COMP | CPU_FTRS_POWER9 | \
 	     CPU_FTRS_POWER9_DD2_1 | CPU_FTRS_POWER9_DD2_2 | \
-	     CPU_FTRS_POWER9_DD2_3 | CPU_FTRS_POWER10 | CPU_FTRS_POWER11)
+	     CPU_FTRS_POWER9_DD2_3 | CPU_FTRS_POWER10 | CPU_FTRS_POWER11 | CPU_FTRS_POWER12)
 #else
 #define CPU_FTRS_POSSIBLE	\
 	    (CPU_FTRS_PPC970 | CPU_FTRS_POWER5 | \
@@ -484,7 +497,7 @@ static inline void cpu_feature_keys_init(void) { }
 	     CPU_FTRS_POWER8 | CPU_FTRS_CELL | CPU_FTRS_PA6T | \
 	     CPU_FTR_VSX_COMP | CPU_FTR_ALTIVEC_COMP | CPU_FTRS_POWER9 | \
 	     CPU_FTRS_POWER9_DD2_1 | CPU_FTRS_POWER9_DD2_2 | \
-	     CPU_FTRS_POWER9_DD2_3 | CPU_FTRS_POWER10 | CPU_FTRS_POWER11)
+	     CPU_FTRS_POWER9_DD2_3 | CPU_FTRS_POWER10 | CPU_FTRS_POWER11 | CPU_FTRS_POWER12)
 #endif /* CONFIG_CPU_LITTLE_ENDIAN */
 #endif
 #else
diff --git a/arch/powerpc/include/asm/entry-common.h b/arch/powerpc/include/asm/entry-common.h
index c5adb5006361..8e91489fdf2b 100644
--- a/arch/powerpc/include/asm/entry-common.h
+++ b/arch/powerpc/include/asm/entry-common.h
@@ -222,8 +222,6 @@ static inline void arch_interrupt_enter_prepare(struct pt_regs *regs)
 
 	if (user_mode(regs)) {
 		kuap_lock();
-		account_cpu_user_entry();
-		account_stolen_time();
 	} else {
 		kuap_save_and_lock(regs);
 		/*
@@ -270,7 +268,7 @@ static inline void arch_interrupt_exit_prepare(struct pt_regs *regs)
 	}
 
 	/* irqentry_exit expects to be called with interrupts disabled */
-	local_irq_disable();
+	hard_irq_disable();
 }
 
 static inline void arch_interrupt_async_enter_prepare(struct pt_regs *regs)
@@ -515,8 +513,14 @@ static inline void arch_exit_to_user_mode_prepare(struct pt_regs *regs,
 #ifdef CONFIG_PPC_TRANSACTIONAL_MEM
 	local_paca->tm_scratch = regs->msr;
 #endif
-	/* Restore user access locks last */
-	kuap_user_restore(regs);
+	/*
+	 * Do not restore KUAP here. Generic entry might treat this as the last
+	 * arch step before userspace but PowerPC still has kernel work after
+	 * irqentry_exit()/syscall_exit_to_user_mode() i.e. in
+	 * interrupt_exit_user_prepare() / syscall_exit_prepare() may enable
+	 * IRQs and retry. Those functions restore KUAP immediately before rfi,
+	 * which is where it should belong.
+	 */
 }
 
 #define arch_exit_to_user_mode_prepare arch_exit_to_user_mode_prepare
diff --git a/arch/powerpc/include/asm/jump_label.h b/arch/powerpc/include/asm/jump_label.h
index d4eaba459a0e..3016e9c8d6bc 100644
--- a/arch/powerpc/include/asm/jump_label.h
+++ b/arch/powerpc/include/asm/jump_label.h
@@ -15,14 +15,20 @@
 #define JUMP_ENTRY_TYPE		stringify_in_c(FTR_ENTRY_LONG)
 #define JUMP_LABEL_NOP_SIZE	4
 
+#define JUMP_TABLE_ENTRY(key, label)			\
+	".pushsection __jump_table,  \"aw\"	\n\t"	\
+	".long 1b - ., " label " - .		\n\t"	\
+	JUMP_ENTRY_TYPE key " - .		\n\t"	\
+	".popsection 				\n\t"
+
+#define ARCH_STATIC_BRANCH_ASM(key, label)		\
+	"1:	nop				\n\t"	\
+	JUMP_TABLE_ENTRY(key, label)
+
 static __always_inline bool arch_static_branch(struct static_key *key, bool branch)
 {
-	asm goto("1:\n\t"
-		 "nop # arch_static_branch\n\t"
-		 ".pushsection __jump_table,  \"aw\"\n\t"
-		 ".long 1b - ., %l[l_yes] - .\n\t"
-		 JUMP_ENTRY_TYPE "%c0 - .\n\t"
-		 ".popsection \n\t"
+	asm goto(
+		 ARCH_STATIC_BRANCH_ASM("%c0", "%l[l_yes]")
 		 : :  "i" (&((char *)key)[branch]) : : l_yes);
 
 	return false;
@@ -34,10 +40,7 @@ static __always_inline bool arch_static_branch_jump(struct static_key *key, bool
 {
 	asm goto("1:\n\t"
 		 "b %l[l_yes] # arch_static_branch_jump\n\t"
-		 ".pushsection __jump_table,  \"aw\"\n\t"
-		 ".long 1b - ., %l[l_yes] - .\n\t"
-		 JUMP_ENTRY_TYPE "%c0 - .\n\t"
-		 ".popsection \n\t"
+		 JUMP_TABLE_ENTRY("%c0", "%l[l_yes]")
 		 : :  "i" (&((char *)key)[branch]) : : l_yes);
 
 	return false;
diff --git a/arch/powerpc/include/asm/kexec_ranges.h b/arch/powerpc/include/asm/kexec_ranges.h
index 14055896cbcb..8489e844b447 100644
--- a/arch/powerpc/include/asm/kexec_ranges.h
+++ b/arch/powerpc/include/asm/kexec_ranges.h
@@ -7,7 +7,6 @@
 void sort_memory_ranges(struct crash_mem *mrngs, bool merge);
 struct crash_mem *realloc_mem_ranges(struct crash_mem **mem_ranges);
 int add_mem_range(struct crash_mem **mem_ranges, u64 base, u64 size);
-int remove_mem_range(struct crash_mem **mem_ranges, u64 base, u64 size);
 int get_exclude_memory_ranges(struct crash_mem **mem_ranges);
 int get_reserved_memory_ranges(struct crash_mem **mem_ranges);
 int get_crash_memory_ranges(struct crash_mem **mem_ranges);
diff --git a/arch/powerpc/include/asm/kvm_ppc.h b/arch/powerpc/include/asm/kvm_ppc.h
index 0953f2daa466..169ea6a7fbad 100644
--- a/arch/powerpc/include/asm/kvm_ppc.h
+++ b/arch/powerpc/include/asm/kvm_ppc.h
@@ -319,6 +319,7 @@ struct kvmppc_ops {
 	bool (*hash_v3_possible)(void);
 	int (*create_vm_debugfs)(struct kvm *kvm);
 	int (*create_vcpu_debugfs)(struct kvm_vcpu *vcpu, struct dentry *debugfs_dentry);
+	int (*get_compat_caps)(struct kvm_ppc_compat_caps *host_caps);
 };
 
 extern struct kvmppc_ops *kvmppc_hv_ops;
diff --git a/arch/powerpc/include/asm/mmu.h b/arch/powerpc/include/asm/mmu.h
index 5f9c5d436e17..4fd7f81a2930 100644
--- a/arch/powerpc/include/asm/mmu.h
+++ b/arch/powerpc/include/asm/mmu.h
@@ -133,6 +133,7 @@
 #define MMU_FTRS_POWER9		MMU_FTRS_POWER6
 #define MMU_FTRS_POWER10	MMU_FTRS_POWER6
 #define MMU_FTRS_POWER11	MMU_FTRS_POWER6
+#define MMU_FTRS_POWER12	MMU_FTRS_POWER6
 #define MMU_FTRS_CELL		MMU_FTRS_DEFAULT_HPTE_ARCH_V2 | \
 				MMU_FTR_CI_LARGE_PAGE
 #define MMU_FTRS_PA6T		MMU_FTRS_DEFAULT_HPTE_ARCH_V2 | \
diff --git a/arch/powerpc/include/asm/papr-watchdog.h b/arch/powerpc/include/asm/papr-watchdog.h
new file mode 100644
index 000000000000..bf876fc2caae
--- /dev/null
+++ b/arch/powerpc/include/asm/papr-watchdog.h
@@ -0,0 +1,64 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#ifndef _ASM_POWERPC_PAPR_WATCHDOG_H
+#define _ASM_POWERPC_PAPR_WATCHDOG_H
+
+/*
+ * H_WATCHDOG Input
+ *
+ * R4: "flags":
+ *
+ *         Bits 48-55: "operation"
+ */
+#define PSERIES_WDTF_OP_START	0x100UL		/* start timer */
+#define PSERIES_WDTF_OP_STOP	0x200UL		/* stop timer */
+#define PSERIES_WDTF_OP_QUERY	0x300UL		/* query timer capabilities */
+
+/*
+ *         Bits 56-63: "timeoutAction" (for "Start Watchdog" only)
+ */
+#define PSERIES_WDTF_ACTION_HARD_POWEROFF	0x1UL	/* poweroff */
+#define PSERIES_WDTF_ACTION_HARD_RESTART	0x2UL	/* restart */
+#define PSERIES_WDTF_ACTION_DUMP_RESTART	0x3UL	/* dump + restart */
+
+/*
+ * R5: "watchdogNumber":
+ *       PAPR says use -1 (all ones) to stop all watchdogs.
+ */
+#define PSERIES_WDT_NUM_ALL	((unsigned long)-1)
+
+/*
+ * H_WATCHDOG Output
+ *
+ * R3: Return code
+ *
+ *     H_SUCCESS    The operation completed.
+ *
+ *     H_BUSY	    The hypervisor is too busy; retry the operation.
+ *
+ *     H_PARAMETER  The given "flags" are somehow invalid.  Either the
+ *                  "operation" or "timeoutAction" is invalid, or a
+ *                  reserved bit is set.
+ *
+ *     H_P2         The given "watchdogNumber" is zero or exceeds the
+ *                  supported maximum value.
+ *
+ *     H_P3         The given "timeoutInMs" is below the supported
+ *                  minimum value.
+ *
+ *     H_NOOP       The given "watchdogNumber" is already stopped.
+ *
+ *     H_HARDWARE   The operation failed for ineffable reasons.
+ *
+ *     H_FUNCTION   The H_WATCHDOG hypercall is not supported by this
+ *                  hypervisor.
+ *
+ * R4:
+ *
+ * - For the "Query Watchdog Capabilities" operation, a 64-bit
+ *   structure:
+ */
+#define PSERIES_WDTQ_MIN_TIMEOUT(cap)	(((cap) >> 48) & 0xffff)
+#define PSERIES_WDTQ_MAX_NUMBER(cap)	(((cap) >> 32) & 0xffff)
+
+#endif /* _ASM_POWERPC_PAPR_WATCHDOG_H */
diff --git a/arch/powerpc/include/asm/prom.h b/arch/powerpc/include/asm/prom.h
index f4991d10d89e..2076852e6c2e 100644
--- a/arch/powerpc/include/asm/prom.h
+++ b/arch/powerpc/include/asm/prom.h
@@ -117,7 +117,8 @@ extern unsigned int boot_cpu_node_count;
 #define OV1_PPC_2_07		0x01	/* set if we support PowerPC 2.07 */
 
 #define OV1_PPC_3_00		0x80	/* set if we support PowerPC 3.00 */
-#define OV1_PPC_3_1			0x40	/* set if we support PowerPC 3.1 */
+#define OV1_PPC_3_1		0x40	/* set if we support PowerPC 3.1 */
+#define OV1_PPC_3_2		0x20	/* set if we support PowerPC 3.2 */
 
 /* Option vector 2: Open Firmware options supported */
 #define OV2_REAL_MODE		0x20	/* set if we want OF in real mode */
diff --git a/arch/powerpc/include/asm/reg.h b/arch/powerpc/include/asm/reg.h
index 3449dd2b577d..541a493e13bf 100644
--- a/arch/powerpc/include/asm/reg.h
+++ b/arch/powerpc/include/asm/reg.h
@@ -492,11 +492,12 @@
  * determine both the compatibility level which we want to emulate and the
  * compatibility level which the host is capable of emulating.
  */
+#define   PCR_ARCH_31   0x20		/* Architecture 3.1 */
 #define   PCR_ARCH_300	0x10		/* Architecture 3.00 */
 #define   PCR_ARCH_207	0x8		/* Architecture 2.07 */
 #define   PCR_ARCH_206	0x4		/* Architecture 2.06 */
 #define   PCR_ARCH_205	0x2		/* Architecture 2.05 */
-#define   PCR_LOW_BITS	(PCR_ARCH_207 | PCR_ARCH_206 | PCR_ARCH_205 | PCR_ARCH_300)
+#define   PCR_LOW_BITS	(PCR_ARCH_207 | PCR_ARCH_206 | PCR_ARCH_205 | PCR_ARCH_300 | PCR_ARCH_31)
 #define   PCR_MASK	~(PCR_HIGH_BITS | PCR_LOW_BITS)	/* PCR Reserved Bits */
 #define	SPRN_HEIR	0x153	/* Hypervisor Emulated Instruction Register */
 #define SPRN_TLBINDEXR	0x154	/* P7 TLB control register */
@@ -1344,6 +1345,7 @@
 #define PVR_POWER9	0x004E
 #define PVR_POWER10	0x0080
 #define PVR_POWER11	0x0082
+#define PVR_POWER12	0x0083
 #define PVR_BE		0x0070
 #define PVR_PA6T	0x0090
 
@@ -1356,6 +1358,19 @@
 #define PVR_ARCH_300	0x0f000005
 #define PVR_ARCH_31	0x0f000006
 #define PVR_ARCH_31_P11	0x0f000007
+#define PVR_ARCH_32	0x0f000008
+
+/*
+ * Kernel-internal sentinel for invalid processor compatibility modes.
+ * PAPR specifies that the first byte of a valid logical PVR value is
+ * 0x0f. So 0xffffffff lies permanently outside the PAPR-defined range
+ * and is safe to repurpose. KVM stores it in vcpu->arch.arch_compat
+ * when userspace requests an unsupported compatibility mode (e.g.,
+ * Power11 PVR on a Power11 host booted in Power10 compat).
+ * kvmppc_sanity_check() detects this and prevents the vCPU from
+ * running with an unsupported arch_compat.
+ */
+#define PVR_ARCH_INVALID	0xffffffff
 
 /* Macros for setting and retrieving special purpose registers */
 #ifndef __ASSEMBLER__
diff --git a/arch/powerpc/include/asm/serial.h b/arch/powerpc/include/asm/serial.h
index c3eb4a64b3f5..534f0bb97ba9 100644
--- a/arch/powerpc/include/asm/serial.h
+++ b/arch/powerpc/include/asm/serial.h
@@ -7,8 +7,8 @@
  * through the device tree.
  */
 
-/* Default baud base if not found in device-tree */
-#define BASE_BAUD ( 1843200 / 16 )
+/* Provides BASE_BAUD, used as fallback if not found in device tree. */
+#include <asm-generic/serial.h>
 
 #ifdef CONFIG_PPC_UDBG_16550
 extern void find_legacy_serial_ports(void);
diff --git a/arch/powerpc/include/asm/synch.h b/arch/powerpc/include/asm/synch.h
index 0d3ccb34adfb..d0e9765dee28 100644
--- a/arch/powerpc/include/asm/synch.h
+++ b/arch/powerpc/include/asm/synch.h
@@ -37,8 +37,12 @@ static inline void ppc_after_tlbiel_barrier(void)
 	 * accelerators mapped will use tlbie (which does invalidate the copy)
 	 * to invalidate translations. It's not possible to limit POWER10 this
 	 * way due to local copy-paste.
+	 *
+	 * POWER12 does not need it.
 	 */
-	asm volatile(ASM_FTR_IFSET(PPC_CP_ABORT, "", %0) : : "i" (CPU_FTR_ARCH_31) : "memory");
+	asm volatile(ASM_FTR_IF(PPC_CP_ABORT, "", %0, %1) :
+		: "i" (CPU_FTR_ARCH_31|CPU_FTR_ARCH_32), "i" (CPU_FTR_ARCH_31)
+		: "memory");
 }
 #endif /* __ASSEMBLER__ */
 
diff --git a/arch/powerpc/include/asm/syscall.h b/arch/powerpc/include/asm/syscall.h
index 834fcc4f7b54..32be22b995cc 100644
--- a/arch/powerpc/include/asm/syscall.h
+++ b/arch/powerpc/include/asm/syscall.h
@@ -98,6 +98,12 @@ static inline void syscall_set_return_value(struct task_struct *task,
 			regs->gpr[3] = val;
 		}
 	}
+	/*
+	 * Mark that a return value has been explicitly set by seccomp or
+	 * ptrace so that system_call_exception() can skip the syscall
+	 * unconditionally, even when the user requested syscall(-1).
+	 */
+	set_thread_flag(TIF_SYSCALL_RET);
 }
 
 static inline void syscall_get_arguments(struct task_struct *task,
@@ -139,9 +145,4 @@ static inline int syscall_get_arch(struct task_struct *task)
 	else
 		return AUDIT_ARCH_PPC64;
 }
-
-static inline bool arch_syscall_is_vdso_sigreturn(struct pt_regs *regs)
-{
-	return false;
-}
 #endif	/* _ASM_SYSCALL_H */
diff --git a/arch/powerpc/include/asm/thread_info.h b/arch/powerpc/include/asm/thread_info.h
index 0487e94d3416..1e069a2e7ce8 100644
--- a/arch/powerpc/include/asm/thread_info.h
+++ b/arch/powerpc/include/asm/thread_info.h
@@ -120,6 +120,7 @@ void arch_setup_new_exec(void);
 #endif
 #define TIF_POLLING_NRFLAG	19	/* true if poll_idle() is polling TIF_NEED_RESCHED */
 #define TIF_32BIT		20	/* 32 bit binary */
+#define TIF_SYSCALL_RET		21	/* syscall error value set */
 
 /* as above, but as bit values */
 #define _TIF_SYSCALL_TRACE	(1<<TIF_SYSCALL_TRACE)
diff --git a/arch/powerpc/include/asm/timex.h b/arch/powerpc/include/asm/timex.h
index 14b4489de52c..b48b78e47958 100644
--- a/arch/powerpc/include/asm/timex.h
+++ b/arch/powerpc/include/asm/timex.h
@@ -11,8 +11,6 @@
 #include <asm/cputable.h>
 #include <asm/vdso/timebase.h>
 
-#define CLOCK_TICK_RATE	1024000 /* Underlying HZ */
-
 typedef unsigned long cycles_t;
 
 static inline cycles_t get_cycles(void)
diff --git a/arch/powerpc/include/asm/xive.h b/arch/powerpc/include/asm/xive.h
index efb0f5effcc6..4e3e3358993c 100644
--- a/arch/powerpc/include/asm/xive.h
+++ b/arch/powerpc/include/asm/xive.h
@@ -91,7 +91,7 @@ static inline bool xive_enabled(void) { return __xive_enabled; }
 
 bool xive_spapr_init(void);
 bool xive_native_init(void);
-void xive_smp_probe(void);
+int xive_smp_probe(void);
 int  xive_smp_prepare_cpu(unsigned int cpu);
 void xive_smp_setup_cpu(void);
 void xive_smp_disable_cpu(void);
@@ -153,7 +153,7 @@ static inline bool xive_enabled(void) { return false; }
 
 static inline bool xive_spapr_init(void) { return false; }
 static inline bool xive_native_init(void) { return false; }
-static inline void xive_smp_probe(void) { }
+static inline int xive_smp_probe(void) { return -EINVAL; }
 static inline int  xive_smp_prepare_cpu(unsigned int cpu) { return -EINVAL; }
 static inline void xive_smp_setup_cpu(void) { }
 static inline void xive_smp_disable_cpu(void) { }
diff --git a/arch/powerpc/include/uapi/asm/cputable.h b/arch/powerpc/include/uapi/asm/cputable.h
index 731b97dc2d15..68215b7ce67e 100644
--- a/arch/powerpc/include/uapi/asm/cputable.h
+++ b/arch/powerpc/include/uapi/asm/cputable.h
@@ -52,6 +52,8 @@
 #define PPC_FEATURE2_HTM_NO_SUSPEND	0x00080000 /* TM w/out suspended state */
 #define PPC_FEATURE2_ARCH_3_1		0x00040000 /* ISA 3.1 */
 #define PPC_FEATURE2_MMA		0x00020000 /* Matrix Multiply Assist */
+#define PPC_FEATURE2_ARCH_3_2		0x00010000 /* ISA 3.2 */
+#define PPC_FEATURE2_DMF		0x00008000 /* Dense Math Facility */
 
 /*
  * IMPORTANT!
diff --git a/arch/powerpc/include/uapi/asm/kvm.h b/arch/powerpc/include/uapi/asm/kvm.h
index 077c5437f521..913a64b901a3 100644
--- a/arch/powerpc/include/uapi/asm/kvm.h
+++ b/arch/powerpc/include/uapi/asm/kvm.h
@@ -437,6 +437,24 @@ struct kvm_ppc_cpu_char {
 	__u64	behaviour_mask;		/* valid bits in behaviour */
 };
 
+/* For KVM_PPC_GET_COMPAT_CAPS */
+struct kvm_ppc_compat_caps {
+	__u64	size;			/* Size of this structure */
+	__u64	flags;			/* Reserved for future use */
+	__u64	compat_capabilities;	/* Capabilities supported by the host */
+};
+#define KVM_PPC_COMPAT_CAPS_SIZE_VER0	24 /* sizeof first published struct */
+
+/*
+ * Capability bits for compat_capabilities field in kvm_ppc_compat_caps.
+ * These bits indicate which processor compatibility modes are supported.
+ */
+#define KVM_PPC_COMPAT_CAP_POWER9	(1ULL << 62)
+#define KVM_PPC_COMPAT_CAP_POWER10	(1ULL << 61)
+#define KVM_PPC_COMPAT_CAP_POWER11	(1ULL << 60)
+#define KVM_PPC_COMPAT_BITMASK		(KVM_PPC_COMPAT_CAP_POWER9 | \
+					 KVM_PPC_COMPAT_CAP_POWER10 | \
+					 KVM_PPC_COMPAT_CAP_POWER11)
 /*
  * Values for character and character_mask.
  * These are identical to the values used by H_GET_CPU_CHARACTERISTICS.