Merge branch 'sched/urgent' into sched/core, to pick up pending v6.7 fixes for the v6.8 merge window

This fix didn't make it upstream in time, pick it up
for the v6.8 merge window.

Signed-off-by: Ingo Molnar <mingo@kernel.org>

36 files changed, 254 insertions, 413 deletions

diff --git a/arch/arc/Kconfig b/arch/arc/Kconfig
index 3162db540ee9..1b0483c51cc1 100644
--- a/arch/arc/Kconfig
+++ b/arch/arc/Kconfig
@@ -49,7 +49,6 @@ config ARC
 	select OF
 	select OF_EARLY_FLATTREE
 	select PCI_SYSCALL if PCI
-	select PERF_USE_VMALLOC if ARC_CACHE_VIPT_ALIASING
 	select HAVE_ARCH_JUMP_LABEL if ISA_ARCV2 && !CPU_ENDIAN_BE32
 	select TRACE_IRQFLAGS_SUPPORT
 
@@ -232,10 +231,6 @@ config ARC_CACHE_PAGES
 	  Note that Global I/D ENABLE + Per Page DISABLE works but corollary
 	  Global DISABLE + Per Page ENABLE won't work
 
-config ARC_CACHE_VIPT_ALIASING
-	bool "Support VIPT Aliasing D$"
-	depends on ARC_HAS_DCACHE && ISA_ARCOMPACT
-
 endif #ARC_CACHE
 
 config ARC_HAS_ICCM
diff --git a/arch/arc/include/asm/cacheflush.h b/arch/arc/include/asm/cacheflush.h
index bd5b1a9a0544..563af3e75f01 100644
--- a/arch/arc/include/asm/cacheflush.h
+++ b/arch/arc/include/asm/cacheflush.h
@@ -44,31 +44,10 @@ void dma_cache_wback(phys_addr_t start, unsigned long sz);
 
 #define flush_cache_dup_mm(mm)			/* called on fork (VIVT only) */
 
-#ifndef CONFIG_ARC_CACHE_VIPT_ALIASING
-
 #define flush_cache_mm(mm)			/* called on munmap/exit */
 #define flush_cache_range(mm, u_vstart, u_vend)
 #define flush_cache_page(vma, u_vaddr, pfn)	/* PF handling/COW-break */
 
-#else	/* VIPT aliasing dcache */
-
-/* To clear out stale userspace mappings */
-void flush_cache_mm(struct mm_struct *mm);
-void flush_cache_range(struct vm_area_struct *vma,
-	unsigned long start,unsigned long end);
-void flush_cache_page(struct vm_area_struct *vma,
-	unsigned long user_addr, unsigned long page);
-
-/*
- * To make sure that userspace mapping is flushed to memory before
- * get_user_pages() uses a kernel mapping to access the page
- */
-#define ARCH_HAS_FLUSH_ANON_PAGE
-void flush_anon_page(struct vm_area_struct *vma,
-	struct page *page, unsigned long u_vaddr);
-
-#endif	/* CONFIG_ARC_CACHE_VIPT_ALIASING */
-
 /*
  * A new pagecache page has PG_arch_1 clear - thus dcache dirty by default
  * This works around some PIO based drivers which don't call flush_dcache_page
@@ -76,28 +55,6 @@ void flush_anon_page(struct vm_area_struct *vma,
  */
 #define PG_dc_clean	PG_arch_1
 
-#define CACHE_COLORS_NUM	4
-#define CACHE_COLORS_MSK	(CACHE_COLORS_NUM - 1)
-#define CACHE_COLOR(addr)	(((unsigned long)(addr) >> (PAGE_SHIFT)) & CACHE_COLORS_MSK)
-
-/*
- * Simple wrapper over config option
- * Bootup code ensures that hardware matches kernel configuration
- */
-static inline int cache_is_vipt_aliasing(void)
-{
-	return IS_ENABLED(CONFIG_ARC_CACHE_VIPT_ALIASING);
-}
-
-/*
- * checks if two addresses (after page aligning) index into same cache set
- */
-#define addr_not_cache_congruent(addr1, addr2)				\
-({									\
-	cache_is_vipt_aliasing() ? 					\
-		(CACHE_COLOR(addr1) != CACHE_COLOR(addr2)) : 0;		\
-})
-
 #define copy_to_user_page(vma, page, vaddr, dst, src, len)		\
 do {									\
 	memcpy(dst, src, len);						\
diff --git a/arch/arc/include/asm/entry-arcv2.h b/arch/arc/include/asm/entry-arcv2.h
index 4d13320e0c1b..3802a2daaf86 100644
--- a/arch/arc/include/asm/entry-arcv2.h
+++ b/arch/arc/include/asm/entry-arcv2.h
@@ -291,4 +291,36 @@
 				/* M = 8-1  N = 8 */
 .endm
 
+.macro SAVE_ABI_CALLEE_REGS
+	push	r13
+	push	r14
+	push	r15
+	push	r16
+	push	r17
+	push	r18
+	push	r19
+	push	r20
+	push	r21
+	push	r22
+	push	r23
+	push	r24
+	push	r25
+.endm
+
+.macro RESTORE_ABI_CALLEE_REGS
+	pop	r25
+	pop	r24
+	pop	r23
+	pop	r22
+	pop	r21
+	pop	r20
+	pop	r19
+	pop	r18
+	pop	r17
+	pop	r16
+	pop	r15
+	pop	r14
+	pop	r13
+.endm
+
 #endif
diff --git a/arch/arc/include/asm/entry-compact.h b/arch/arc/include/asm/entry-compact.h
index a0e760eb35a8..92c3e9f13252 100644
--- a/arch/arc/include/asm/entry-compact.h
+++ b/arch/arc/include/asm/entry-compact.h
@@ -33,6 +33,91 @@
 #include <asm/irqflags-compact.h>
 #include <asm/thread_info.h>	/* For THREAD_SIZE */
 
+/* Note on the LD/ST addr modes with addr reg wback
+ *
+ * LD.a same as LD.aw
+ *
+ * LD.a    reg1, [reg2, x]  => Pre Incr
+ *      Eff Addr for load = [reg2 + x]
+ *
+ * LD.ab   reg1, [reg2, x]  => Post Incr
+ *      Eff Addr for load = [reg2]
+ */
+
+.macro PUSHAX aux
+	lr	r9, [\aux]
+	push	r9
+.endm
+
+.macro POPAX aux
+	pop	r9
+	sr	r9, [\aux]
+.endm
+
+.macro  SAVE_R0_TO_R12
+	push	r0
+	push	r1
+	push	r2
+	push	r3
+	push	r4
+	push	r5
+	push	r6
+	push	r7
+	push	r8
+	push	r9
+	push	r10
+	push	r11
+	push	r12
+.endm
+
+.macro RESTORE_R12_TO_R0
+	pop	r12
+	pop	r11
+	pop	r10
+	pop	r9
+	pop	r8
+	pop	r7
+	pop	r6
+	pop	r5
+	pop	r4
+	pop	r3
+	pop	r2
+	pop	r1
+	pop	r0
+.endm
+
+.macro SAVE_ABI_CALLEE_REGS
+	push	r13
+	push	r14
+	push	r15
+	push	r16
+	push	r17
+	push	r18
+	push	r19
+	push	r20
+	push	r21
+	push	r22
+	push	r23
+	push	r24
+	push	r25
+.endm
+
+.macro RESTORE_ABI_CALLEE_REGS
+	pop	r25
+	pop	r24
+	pop	r23
+	pop	r22
+	pop	r21
+	pop	r20
+	pop	r19
+	pop	r18
+	pop	r17
+	pop	r16
+	pop	r15
+	pop	r14
+	pop	r13
+.endm
+
 /*--------------------------------------------------------------
  * Switch to Kernel Mode stack if SP points to User Mode stack
  *
@@ -235,7 +320,7 @@
 	SWITCH_TO_KERNEL_STK
 
 
-	PUSH	0x003\LVL\()abcd    /* Dummy ECR */
+	st.a	0x003\LVL\()abcd, [sp, -4]	/* Dummy ECR */
 	sub	sp, sp, 8	    /* skip orig_r0 (not needed)
 				       skip pt_regs->sp, already saved above */
 
diff --git a/arch/arc/include/asm/entry.h b/arch/arc/include/asm/entry.h
index 49c2e090cb5c..cf1ba376e992 100644
--- a/arch/arc/include/asm/entry.h
+++ b/arch/arc/include/asm/entry.h
@@ -21,114 +21,12 @@
 #include <asm/entry-arcv2.h>
 #endif
 
-/* Note on the LD/ST addr modes with addr reg wback
- *
- * LD.a same as LD.aw
- *
- * LD.a    reg1, [reg2, x]  => Pre Incr
- *      Eff Addr for load = [reg2 + x]
- *
- * LD.ab   reg1, [reg2, x]  => Post Incr
- *      Eff Addr for load = [reg2]
- */
-
-.macro PUSH reg
-	st.a	\reg, [sp, -4]
-.endm
-
-.macro PUSHAX aux
-	lr	r9, [\aux]
-	PUSH	r9
-.endm
-
-.macro POP reg
-	ld.ab	\reg, [sp, 4]
-.endm
-
-.macro POPAX aux
-	POP	r9
-	sr	r9, [\aux]
-.endm
-
-/*--------------------------------------------------------------
- * Helpers to save/restore Scratch Regs:
- * used by Interrupt/Exception Prologue/Epilogue
- *-------------------------------------------------------------*/
-.macro  SAVE_R0_TO_R12
-	PUSH	r0
-	PUSH	r1
-	PUSH	r2
-	PUSH	r3
-	PUSH	r4
-	PUSH	r5
-	PUSH	r6
-	PUSH	r7
-	PUSH	r8
-	PUSH	r9
-	PUSH	r10
-	PUSH	r11
-	PUSH	r12
-.endm
-
-.macro RESTORE_R12_TO_R0
-	POP	r12
-	POP	r11
-	POP	r10
-	POP	r9
-	POP	r8
-	POP	r7
-	POP	r6
-	POP	r5
-	POP	r4
-	POP	r3
-	POP	r2
-	POP	r1
-	POP	r0
-
-.endm
-
-/*--------------------------------------------------------------
- * Helpers to save/restore callee-saved regs:
- * used by several macros below
- *-------------------------------------------------------------*/
-.macro SAVE_R13_TO_R25
-	PUSH	r13
-	PUSH	r14
-	PUSH	r15
-	PUSH	r16
-	PUSH	r17
-	PUSH	r18
-	PUSH	r19
-	PUSH	r20
-	PUSH	r21
-	PUSH	r22
-	PUSH	r23
-	PUSH	r24
-	PUSH	r25
-.endm
-
-.macro RESTORE_R25_TO_R13
-	POP	r25
-	POP	r24
-	POP	r23
-	POP	r22
-	POP	r21
-	POP	r20
-	POP	r19
-	POP	r18
-	POP	r17
-	POP	r16
-	POP	r15
-	POP	r14
-	POP	r13
-.endm
-
 /*
  * save user mode callee regs as struct callee_regs
  *  - needed by fork/do_signal/unaligned-access-emulation.
  */
 .macro SAVE_CALLEE_SAVED_USER
-	SAVE_R13_TO_R25
+	SAVE_ABI_CALLEE_REGS
 .endm
 
 /*
@@ -136,18 +34,18 @@
  *  - could have been changed by ptrace tracer or unaligned-access fixup
  */
 .macro RESTORE_CALLEE_SAVED_USER
-	RESTORE_R25_TO_R13
+	RESTORE_ABI_CALLEE_REGS
 .endm
 
 /*
  * save/restore kernel mode callee regs at the time of context switch
  */
 .macro SAVE_CALLEE_SAVED_KERNEL
-	SAVE_R13_TO_R25
+	SAVE_ABI_CALLEE_REGS
 .endm
 
 .macro RESTORE_CALLEE_SAVED_KERNEL
-	RESTORE_R25_TO_R13
+	RESTORE_ABI_CALLEE_REGS
 .endm
 
 /*--------------------------------------------------------------
diff --git a/arch/arc/include/asm/hugepage.h b/arch/arc/include/asm/hugepage.h
index ef8d4166370c..8a2441670a8f 100644
--- a/arch/arc/include/asm/hugepage.h
+++ b/arch/arc/include/asm/hugepage.h
@@ -10,6 +10,13 @@
 #include <linux/types.h>
 #include <asm-generic/pgtable-nopmd.h>
 
+/*
+ * Hugetlb definitions.
+ */
+#define HPAGE_SHIFT		PMD_SHIFT
+#define HPAGE_SIZE		(_AC(1, UL) << HPAGE_SHIFT)
+#define HPAGE_MASK		(~(HPAGE_SIZE - 1))
+
 static inline pte_t pmd_pte(pmd_t pmd)
 {
 	return __pte(pmd_val(pmd));
diff --git a/arch/arc/include/asm/ptrace.h b/arch/arc/include/asm/ptrace.h
index 4a2b30fb5a98..00b9318e551e 100644
--- a/arch/arc/include/asm/ptrace.h
+++ b/arch/arc/include/asm/ptrace.h
@@ -54,6 +54,10 @@ struct pt_regs {
 	ecr_reg ecr;
 };
 
+struct callee_regs {
+	unsigned long r25, r24, r23, r22, r21, r20, r19, r18, r17, r16, r15, r14, r13;
+};
+
 #define MAX_REG_OFFSET offsetof(struct pt_regs, ecr)
 
 #else
@@ -92,16 +96,14 @@ struct pt_regs {
 	unsigned long status32;
 };
 
-#define MAX_REG_OFFSET offsetof(struct pt_regs, status32)
-
-#endif
-
-/* Callee saved registers - need to be saved only when you are scheduled out */
-
 struct callee_regs {
 	unsigned long r25, r24, r23, r22, r21, r20, r19, r18, r17, r16, r15, r14, r13;
 };
 
+#define MAX_REG_OFFSET offsetof(struct pt_regs, status32)
+
+#endif
+
 #define instruction_pointer(regs)	((regs)->ret)
 #define profile_pc(regs)		instruction_pointer(regs)
 
diff --git a/arch/arc/kernel/setup.c b/arch/arc/kernel/setup.c
index 4dcf8589b708..d08a5092c2b4 100644
--- a/arch/arc/kernel/setup.c
+++ b/arch/arc/kernel/setup.c
@@ -153,7 +153,7 @@ static int arcv2_mumbojumbo(int c, struct cpuinfo_arc *info, char *buf, int len)
 {
 	int n = 0;
 #ifdef CONFIG_ISA_ARCV2
-	const char *release, *cpu_nm, *isa_nm = "ARCv2";
+	const char *release = "", *cpu_nm = "HS38", *isa_nm = "ARCv2";
 	int dual_issue = 0, dual_enb = 0, mpy_opt, present;
 	int bpu_full, bpu_cache, bpu_pred, bpu_ret_stk;
 	char mpy_nm[16], lpb_nm[32];
@@ -172,8 +172,6 @@ static int arcv2_mumbojumbo(int c, struct cpuinfo_arc *info, char *buf, int len)
 	 * releases only update it.
 	 */
 
-	cpu_nm = "HS38";
-
 	if (info->arcver > 0x50 && info->arcver <= 0x53) {
 		release = arc_hs_rel[info->arcver - 0x51].str;
 	} else {
diff --git a/arch/arc/kernel/signal.c b/arch/arc/kernel/signal.c
index 0b3bb529d246..8f6f4a542964 100644
--- a/arch/arc/kernel/signal.c
+++ b/arch/arc/kernel/signal.c
@@ -62,7 +62,7 @@ struct rt_sigframe {
 	unsigned int sigret_magic;
 };
 
-static int save_arcv2_regs(struct sigcontext *mctx, struct pt_regs *regs)
+static int save_arcv2_regs(struct sigcontext __user *mctx, struct pt_regs *regs)
 {
 	int err = 0;
 #ifndef CONFIG_ISA_ARCOMPACT
@@ -75,12 +75,12 @@ static int save_arcv2_regs(struct sigcontext *mctx, struct pt_regs *regs)
 #else
 	v2abi.r58 = v2abi.r59 = 0;
 #endif
-	err = __copy_to_user(&mctx->v2abi, &v2abi, sizeof(v2abi));
+	err = __copy_to_user(&mctx->v2abi, (void const *)&v2abi, sizeof(v2abi));
 #endif
 	return err;
 }
 
-static int restore_arcv2_regs(struct sigcontext *mctx, struct pt_regs *regs)
+static int restore_arcv2_regs(struct sigcontext __user *mctx, struct pt_regs *regs)
 {
 	int err = 0;
 #ifndef CONFIG_ISA_ARCOMPACT
diff --git a/arch/arc/mm/cache.c b/arch/arc/mm/cache.c
index f7e05c146637..9106ceac323c 100644
--- a/arch/arc/mm/cache.c
+++ b/arch/arc/mm/cache.c
@@ -145,10 +145,9 @@ dc_chk:
 	p_dc->sz_k = 1 << (dbcr.sz - 1);
 
 	n += scnprintf(buf + n, len - n,
-			"D-Cache\t\t: %uK, %dway/set, %uB Line, %s%s%s\n",
+			"D-Cache\t\t: %uK, %dway/set, %uB Line, %s%s\n",
 			p_dc->sz_k, assoc, p_dc->line_len,
 			vipt ? "VIPT" : "PIPT",
-			p_dc->colors > 1 ? " aliasing" : "",
 			IS_USED_CFG(CONFIG_ARC_HAS_DCACHE));
 
 slc_chk:
@@ -703,51 +702,10 @@ static inline void arc_slc_enable(void)
  * Exported APIs
  */
 
-/*
- * Handle cache congruency of kernel and userspace mappings of page when kernel
- * writes-to/reads-from
- *
- * The idea is to defer flushing of kernel mapping after a WRITE, possible if:
- *  -dcache is NOT aliasing, hence any U/K-mappings of page are congruent
- *  -U-mapping doesn't exist yet for page (finalised in update_mmu_cache)
- *  -In SMP, if hardware caches are coherent
- *
- * There's a corollary case, where kernel READs from a userspace mapped page.
- * If the U-mapping is not congruent to K-mapping, former needs flushing.
- */
 void flush_dcache_folio(struct folio *folio)
 {
-	struct address_space *mapping;
-
-	if (!cache_is_vipt_aliasing()) {
-		clear_bit(PG_dc_clean, &folio->flags);
-		return;
-	}
-
-	/* don't handle anon pages here */
-	mapping = folio_flush_mapping(folio);
-	if (!mapping)
-		return;
-
-	/*
-	 * pagecache page, file not yet mapped to userspace
-	 * Make a note that K-mapping is dirty
-	 */
-	if (!mapping_mapped(mapping)) {
-		clear_bit(PG_dc_clean, &folio->flags);
-	} else if (folio_mapped(folio)) {
-		/* kernel reading from page with U-mapping */
-		phys_addr_t paddr = (unsigned long)folio_address(folio);
-		unsigned long vaddr = folio_pos(folio);
-
-		/*
-		 * vaddr is not actually the virtual address, but is
-		 * congruent to every user mapping.
-		 */
-		if (addr_not_cache_congruent(paddr, vaddr))
-			__flush_dcache_pages(paddr, vaddr,
-						folio_nr_pages(folio));
-	}
+	clear_bit(PG_dc_clean, &folio->flags);
+	return;
 }
 EXPORT_SYMBOL(flush_dcache_folio);
 
@@ -921,44 +879,6 @@ noinline void flush_cache_all(void)
 
 }
 
-#ifdef CONFIG_ARC_CACHE_VIPT_ALIASING
-
-void flush_cache_mm(struct mm_struct *mm)
-{
-	flush_cache_all();
-}
-
-void flush_cache_page(struct vm_area_struct *vma, unsigned long u_vaddr,
-		      unsigned long pfn)
-{
-	phys_addr_t paddr = pfn << PAGE_SHIFT;
-
-	u_vaddr &= PAGE_MASK;
-
-	__flush_dcache_pages(paddr, u_vaddr, 1);
-
-	if (vma->vm_flags & VM_EXEC)
-		__inv_icache_pages(paddr, u_vaddr, 1);
-}
-
-void flush_cache_range(struct vm_area_struct *vma, unsigned long start,
-		       unsigned long end)
-{
-	flush_cache_all();
-}
-
-void flush_anon_page(struct vm_area_struct *vma, struct page *page,
-		     unsigned long u_vaddr)
-{
-	/* TBD: do we really need to clear the kernel mapping */
-	__flush_dcache_pages((phys_addr_t)page_address(page), u_vaddr, 1);
-	__flush_dcache_pages((phys_addr_t)page_address(page),
-			    (phys_addr_t)page_address(page), 1);
-
-}
-
-#endif
-
 void copy_user_highpage(struct page *to, struct page *from,
 	unsigned long u_vaddr, struct vm_area_struct *vma)
 {
@@ -966,46 +886,11 @@ void copy_user_highpage(struct page *to, struct page *from,
 	struct folio *dst = page_folio(to);
 	void *kfrom = kmap_atomic(from);
 	void *kto = kmap_atomic(to);
-	int clean_src_k_mappings = 0;
-
-	/*
-	 * If SRC page was already mapped in userspace AND it's U-mapping is
-	 * not congruent with K-mapping, sync former to physical page so that
-	 * K-mapping in memcpy below, sees the right data
-	 *
-	 * Note that while @u_vaddr refers to DST page's userspace vaddr, it is
-	 * equally valid for SRC page as well
-	 *
-	 * For !VIPT cache, all of this gets compiled out as
-	 * addr_not_cache_congruent() is 0
-	 */
-	if (page_mapcount(from) && addr_not_cache_congruent(kfrom, u_vaddr)) {
-		__flush_dcache_pages((unsigned long)kfrom, u_vaddr, 1);
-		clean_src_k_mappings = 1;
-	}
 
 	copy_page(kto, kfrom);
 
-	/*
-	 * Mark DST page K-mapping as dirty for a later finalization by
-	 * update_mmu_cache(). Although the finalization could have been done
-	 * here as well (given that both vaddr/paddr are available).
-	 * But update_mmu_cache() already has code to do that for other
-	 * non copied user pages (e.g. read faults which wire in pagecache page
-	 * directly).
-	 */
 	clear_bit(PG_dc_clean, &dst->flags);
-
-	/*
-	 * if SRC was already usermapped and non-congruent to kernel mapping
-	 * sync the kernel mapping back to physical page
-	 */
-	if (clean_src_k_mappings) {
-		__flush_dcache_pages((unsigned long)kfrom,
-					(unsigned long)kfrom, 1);
-	} else {
-		clear_bit(PG_dc_clean, &src->flags);
-	}
+	clear_bit(PG_dc_clean, &src->flags);
 
 	kunmap_atomic(kto);
 	kunmap_atomic(kfrom);
@@ -1140,17 +1025,8 @@ static noinline void __init arc_cache_init_master(void)
 			      dc->line_len, L1_CACHE_BYTES);
 
 		/* check for D-Cache aliasing on ARCompact: ARCv2 has PIPT */
-		if (is_isa_arcompact()) {
-			int handled = IS_ENABLED(CONFIG_ARC_CACHE_VIPT_ALIASING);
-
-			if (dc->colors > 1) {
-				if (!handled)
-					panic("Enable CONFIG_ARC_CACHE_VIPT_ALIASING\n");
-				if (CACHE_COLORS_NUM != dc->colors)
-					panic("CACHE_COLORS_NUM not optimized for config\n");
-			} else if (handled && dc->colors == 1) {
-				panic("Disable CONFIG_ARC_CACHE_VIPT_ALIASING\n");
-			}
+		if (is_isa_arcompact() && dc->colors > 1) {
+			panic("Aliasing VIPT cache not supported\n");
 		}
 	}
 
diff --git a/arch/arc/mm/mmap.c b/arch/arc/mm/mmap.c
index fce5fa2b4f52..3c1c7ae73292 100644
--- a/arch/arc/mm/mmap.c
+++ b/arch/arc/mm/mmap.c
@@ -14,10 +14,6 @@
 
 #include <asm/cacheflush.h>
 
-#define COLOUR_ALIGN(addr, pgoff)			\
-	((((addr) + SHMLBA - 1) & ~(SHMLBA - 1)) +	\
-	 (((pgoff) << PAGE_SHIFT) & (SHMLBA - 1)))
-
 /*
  * Ensure that shared mappings are correctly aligned to
  * avoid aliasing issues with VIPT caches.
@@ -31,21 +27,13 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
 {
 	struct mm_struct *mm = current->mm;
 	struct vm_area_struct *vma;
-	int do_align = 0;
-	int aliasing = cache_is_vipt_aliasing();
 	struct vm_unmapped_area_info info;
 
 	/*
-	 * We only need to do colour alignment if D cache aliases.
-	 */
-	if (aliasing)
-		do_align = filp || (flags & MAP_SHARED);
-
-	/*
 	 * We enforce the MAP_FIXED case.
 	 */
 	if (flags & MAP_FIXED) {
-		if (aliasing && flags & MAP_SHARED &&
+		if (flags & MAP_SHARED &&
 		    (addr - (pgoff << PAGE_SHIFT)) & (SHMLBA - 1))
 			return -EINVAL;
 		return addr;
@@ -55,10 +43,7 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
 		return -ENOMEM;
 
 	if (addr) {
-		if (do_align)
-			addr = COLOUR_ALIGN(addr, pgoff);
-		else
-			addr = PAGE_ALIGN(addr);
+		addr = PAGE_ALIGN(addr);
 
 		vma = find_vma(mm, addr);
 		if (TASK_SIZE - len >= addr &&
@@ -70,7 +55,7 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
 	info.length = len;
 	info.low_limit = mm->mmap_base;
 	info.high_limit = TASK_SIZE;
-	info.align_mask = do_align ? (PAGE_MASK & (SHMLBA - 1)) : 0;
+	info.align_mask = 0;
 	info.align_offset = pgoff << PAGE_SHIFT;
 	return vm_unmapped_area(&info);
 }
diff --git a/arch/arc/mm/tlb.c b/arch/arc/mm/tlb.c
index e536b2dcd4b0..ad702b49aeb3 100644
--- a/arch/arc/mm/tlb.c
+++ b/arch/arc/mm/tlb.c
@@ -478,21 +478,15 @@ void update_mmu_cache_range(struct vm_fault *vmf, struct vm_area_struct *vma,
 
 	create_tlb(vma, vaddr, ptep);
 
-	if (page == ZERO_PAGE(0)) {
+	if (page == ZERO_PAGE(0))
 		return;
-	}
 
 	/*
-	 * Exec page : Independent of aliasing/page-color considerations,
-	 *	       since icache doesn't snoop dcache on ARC, any dirty
-	 *	       K-mapping of a code page needs to be wback+inv so that
-	 *	       icache fetch by userspace sees code correctly.
-	 * !EXEC page: If K-mapping is NOT congruent to U-mapping, flush it
-	 *	       so userspace sees the right data.
-	 *  (Avoids the flush for Non-exec + congruent mapping case)
+	 * For executable pages, since icache doesn't snoop dcache, any
+	 * dirty K-mapping of a code page needs to be wback+inv so that
+	 * icache fetch by userspace sees code correctly.
 	 */
-	if ((vma->vm_flags & VM_EXEC) ||
-	     addr_not_cache_congruent(paddr, vaddr)) {
+	if (vma->vm_flags & VM_EXEC) {
 		struct folio *folio = page_folio(page);
 		int dirty = !test_and_set_bit(PG_dc_clean, &folio->flags);
 		if (dirty) {
diff --git a/arch/arm/boot/dts/ti/omap/am33xx.dtsi b/arch/arm/boot/dts/ti/omap/am33xx.dtsi
index 1a2cd5baf402..5b9e01a8aa5d 100644
--- a/arch/arm/boot/dts/ti/omap/am33xx.dtsi
+++ b/arch/arm/boot/dts/ti/omap/am33xx.dtsi
@@ -359,6 +359,7 @@
 					<SYSC_IDLE_NO>,
 					<SYSC_IDLE_SMART>,
 					<SYSC_IDLE_SMART_WKUP>;
+			ti,sysc-delay-us = <2>;
 			clocks = <&l3s_clkctrl AM3_L3S_USB_OTG_HS_CLKCTRL 0>;
 			clock-names = "fck";
 			#address-cells = <1>;
diff --git a/arch/arm/boot/dts/ti/omap/dra7.dtsi b/arch/arm/boot/dts/ti/omap/dra7.dtsi
index 3f3e52e3b375..6509c742fb58 100644
--- a/arch/arm/boot/dts/ti/omap/dra7.dtsi
+++ b/arch/arm/boot/dts/ti/omap/dra7.dtsi
@@ -147,7 +147,7 @@
 
 		l3-noc@44000000 {
 			compatible = "ti,dra7-l3-noc";
-			reg = <0x44000000 0x1000>,
+			reg = <0x44000000 0x1000000>,
 			      <0x45000000 0x1000>;
 			interrupts-extended = <&crossbar_mpu GIC_SPI 4 IRQ_TYPE_LEVEL_HIGH>,
 					      <&wakeupgen GIC_SPI 10 IRQ_TYPE_LEVEL_HIGH>;
diff --git a/arch/arm/mach-omap2/id.c b/arch/arm/mach-omap2/id.c
index 98999aa8cc0c..7f387706368a 100644
--- a/arch/arm/mach-omap2/id.c
+++ b/arch/arm/mach-omap2/id.c
@@ -793,11 +793,16 @@ void __init omap_soc_device_init(void)
 
 	soc_dev_attr->machine  = soc_name;
 	soc_dev_attr->family   = omap_get_family();
+	if (!soc_dev_attr->family) {
+		kfree(soc_dev_attr);
+		return;
+	}
 	soc_dev_attr->revision = soc_rev;
 	soc_dev_attr->custom_attr_group = omap_soc_groups[0];
 
 	soc_dev = soc_device_register(soc_dev_attr);
 	if (IS_ERR(soc_dev)) {
+		kfree(soc_dev_attr->family);
 		kfree(soc_dev_attr);
 		return;
 	}
diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h616-orangepi-zero.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-h616-orangepi-zero.dtsi
index 15290e6892fc..fc7315b94406 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-h616-orangepi-zero.dtsi
+++ b/arch/arm64/boot/dts/allwinner/sun50i-h616-orangepi-zero.dtsi
@@ -68,10 +68,7 @@
 &emac0 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&ext_rgmii_pins>;
-	phy-mode = "rgmii";
 	phy-handle = <&ext_rgmii_phy>;
-	allwinner,rx-delay-ps = <3100>;
-	allwinner,tx-delay-ps = <700>;
 	status = "okay";
 };
 
diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h616-orangepi-zero2.dts b/arch/arm64/boot/dts/allwinner/sun50i-h616-orangepi-zero2.dts
index d83852e72f06..b5d713926a34 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-h616-orangepi-zero2.dts
+++ b/arch/arm64/boot/dts/allwinner/sun50i-h616-orangepi-zero2.dts
@@ -13,6 +13,9 @@
 };
 
 &emac0 {
+	allwinner,rx-delay-ps = <3100>;
+	allwinner,tx-delay-ps = <700>;
+	phy-mode = "rgmii";
 	phy-supply = <&reg_dcdce>;
 };
 
diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h618-orangepi-zero3.dts b/arch/arm64/boot/dts/allwinner/sun50i-h618-orangepi-zero3.dts
index 00fe28caac93..b3b1b8692125 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-h618-orangepi-zero3.dts
+++ b/arch/arm64/boot/dts/allwinner/sun50i-h618-orangepi-zero3.dts
@@ -13,6 +13,8 @@
 };
 
 &emac0 {
+	allwinner,tx-delay-ps = <700>;
+	phy-mode = "rgmii-rxid";
 	phy-supply = <&reg_dldo1>;
 };
 
diff --git a/arch/arm64/boot/dts/mediatek/mt8395-genio-1200-evk.dts b/arch/arm64/boot/dts/mediatek/mt8395-genio-1200-evk.dts
index 70b465f7c6a7..00ac59a873e8 100644
--- a/arch/arm64/boot/dts/mediatek/mt8395-genio-1200-evk.dts
+++ b/arch/arm64/boot/dts/mediatek/mt8395-genio-1200-evk.dts
@@ -238,6 +238,7 @@
 	mt6360: pmic@34 {
 		compatible = "mediatek,mt6360";
 		reg = <0x34>;
+		interrupt-parent = <&pio>;
 		interrupts = <128 IRQ_TYPE_EDGE_FALLING>;
 		interrupt-names = "IRQB";
 		interrupt-controller;
diff --git a/arch/arm64/include/asm/syscall_wrapper.h b/arch/arm64/include/asm/syscall_wrapper.h
index d977713ec0ba..abb57bc54305 100644
--- a/arch/arm64/include/asm/syscall_wrapper.h
+++ b/arch/arm64/include/asm/syscall_wrapper.h
@@ -44,9 +44,6 @@
 		return sys_ni_syscall();						\
 	}
 
-#define COMPAT_SYS_NI(name) \
-	SYSCALL_ALIAS(__arm64_compat_sys_##name, sys_ni_posix_timers);
-
 #endif /* CONFIG_COMPAT */
 
 #define __SYSCALL_DEFINEx(x, name, ...)						\
@@ -81,6 +78,5 @@
 	}
 
 asmlinkage long __arm64_sys_ni_syscall(const struct pt_regs *__unused);
-#define SYS_NI(name) SYSCALL_ALIAS(__arm64_sys_##name, sys_ni_posix_timers);
 
 #endif /* __ASM_SYSCALL_WRAPPER_H */
diff --git a/arch/arm64/kvm/arm.c b/arch/arm64/kvm/arm.c
index e5f75f1f1085..4796104c4471 100644
--- a/arch/arm64/kvm/arm.c
+++ b/arch/arm64/kvm/arm.c
@@ -410,7 +410,7 @@ void kvm_arch_vcpu_destroy(struct kvm_vcpu *vcpu)
 	kvm_mmu_free_memory_cache(&vcpu->arch.mmu_page_cache);
 	kvm_timer_vcpu_terminate(vcpu);
 	kvm_pmu_vcpu_destroy(vcpu);
-
+	kvm_vgic_vcpu_destroy(vcpu);
 	kvm_arm_vcpu_destroy(vcpu);
 }
 
diff --git a/arch/arm64/kvm/vgic/vgic-init.c b/arch/arm64/kvm/vgic/vgic-init.c
index c8c3cb812783..e949e1d0fd9f 100644
--- a/arch/arm64/kvm/vgic/vgic-init.c
+++ b/arch/arm64/kvm/vgic/vgic-init.c
@@ -368,7 +368,7 @@ static void kvm_vgic_dist_destroy(struct kvm *kvm)
 		vgic_v4_teardown(kvm);
 }
 
-void kvm_vgic_vcpu_destroy(struct kvm_vcpu *vcpu)
+static void __kvm_vgic_vcpu_destroy(struct kvm_vcpu *vcpu)
 {
 	struct vgic_cpu *vgic_cpu = &vcpu->arch.vgic_cpu;
 
@@ -379,29 +379,39 @@ void kvm_vgic_vcpu_destroy(struct kvm_vcpu *vcpu)
 	vgic_flush_pending_lpis(vcpu);
 
 	INIT_LIST_HEAD(&vgic_cpu->ap_list_head);
-	vgic_cpu->rd_iodev.base_addr = VGIC_ADDR_UNDEF;
+	if (vcpu->kvm->arch.vgic.vgic_model == KVM_DEV_TYPE_ARM_VGIC_V3) {
+		vgic_unregister_redist_iodev(vcpu);
+		vgic_cpu->rd_iodev.base_addr = VGIC_ADDR_UNDEF;
+	}
 }
 
-static void __kvm_vgic_destroy(struct kvm *kvm)
+void kvm_vgic_vcpu_destroy(struct kvm_vcpu *vcpu)
+{
+	struct kvm *kvm = vcpu->kvm;
+
+	mutex_lock(&kvm->slots_lock);
+	__kvm_vgic_vcpu_destroy(vcpu);
+	mutex_unlock(&kvm->slots_lock);
+}
+
+void kvm_vgic_destroy(struct kvm *kvm)
 {
 	struct kvm_vcpu *vcpu;
 	unsigned long i;
 
-	lockdep_assert_held(&kvm->arch.config_lock);
+	mutex_lock(&kvm->slots_lock);
 
 	vgic_debug_destroy(kvm);
 
 	kvm_for_each_vcpu(i, vcpu, kvm)
-		kvm_vgic_vcpu_destroy(vcpu);
+		__kvm_vgic_vcpu_destroy(vcpu);
+
+	mutex_lock(&kvm->arch.config_lock);
 
 	kvm_vgic_dist_destroy(kvm);
-}
 
-void kvm_vgic_destroy(struct kvm *kvm)
-{
-	mutex_lock(&kvm->arch.config_lock);
-	__kvm_vgic_destroy(kvm);
 	mutex_unlock(&kvm->arch.config_lock);
+	mutex_unlock(&kvm->slots_lock);
 }
 
 /**
@@ -469,25 +479,26 @@ int kvm_vgic_map_resources(struct kvm *kvm)
 		type = VGIC_V3;
 	}
 
-	if (ret) {
-		__kvm_vgic_destroy(kvm);
+	if (ret)
 		goto out;
-	}
+
 	dist->ready = true;
 	dist_base = dist->vgic_dist_base;
 	mutex_unlock(&kvm->arch.config_lock);
 
 	ret = vgic_register_dist_iodev(kvm, dist_base, type);
-	if (ret) {
+	if (ret)
 		kvm_err("Unable to register VGIC dist MMIO regions\n");
-		kvm_vgic_destroy(kvm);
-	}
-	mutex_unlock(&kvm->slots_lock);
-	return ret;
 
+	goto out_slots;
 out:
 	mutex_unlock(&kvm->arch.config_lock);
+out_slots:
 	mutex_unlock(&kvm->slots_lock);
+
+	if (ret)
+		kvm_vgic_destroy(kvm);
+
 	return ret;
 }
 
diff --git a/arch/arm64/kvm/vgic/vgic-mmio-v3.c b/arch/arm64/kvm/vgic/vgic-mmio-v3.c
index 89117ba2528a..a764b0ab8bf9 100644
--- a/arch/arm64/kvm/vgic/vgic-mmio-v3.c
+++ b/arch/arm64/kvm/vgic/vgic-mmio-v3.c
@@ -820,7 +820,7 @@ out_unlock:
 	return ret;
 }
 
-static void vgic_unregister_redist_iodev(struct kvm_vcpu *vcpu)
+void vgic_unregister_redist_iodev(struct kvm_vcpu *vcpu)
 {
 	struct vgic_io_device *rd_dev = &vcpu->arch.vgic_cpu.rd_iodev;
 
@@ -833,6 +833,8 @@ static int vgic_register_all_redist_iodevs(struct kvm *kvm)
 	unsigned long c;
 	int ret = 0;
 
+	lockdep_assert_held(&kvm->slots_lock);
+
 	kvm_for_each_vcpu(c, vcpu, kvm) {
 		ret = vgic_register_redist_iodev(vcpu);
 		if (ret)
diff --git a/arch/arm64/kvm/vgic/vgic.h b/arch/arm64/kvm/vgic/vgic.h
index 0ab09b0d4440..8d134569d0a1 100644
--- a/arch/arm64/kvm/vgic/vgic.h
+++ b/arch/arm64/kvm/vgic/vgic.h
@@ -241,6 +241,7 @@ int vgic_v3_lpi_sync_pending_status(struct kvm *kvm, struct vgic_irq *irq);
 int vgic_v3_save_pending_tables(struct kvm *kvm);
 int vgic_v3_set_redist_base(struct kvm *kvm, u32 index, u64 addr, u32 count);
 int vgic_register_redist_iodev(struct kvm_vcpu *vcpu);
+void vgic_unregister_redist_iodev(struct kvm_vcpu *vcpu);
 bool vgic_v3_check_base(struct kvm *kvm);
 
 void vgic_v3_load(struct kvm_vcpu *vcpu);
diff --git a/arch/riscv/include/asm/syscall_wrapper.h b/arch/riscv/include/asm/syscall_wrapper.h
index 1d7942c8a6cb..eeec04b7dae6 100644
--- a/arch/riscv/include/asm/syscall_wrapper.h
+++ b/arch/riscv/include/asm/syscall_wrapper.h
@@ -46,9 +46,6 @@ asmlinkage long __riscv_sys_ni_syscall(const struct pt_regs *);
 		return sys_ni_syscall();						\
 	}
 
-#define COMPAT_SYS_NI(name) \
-	SYSCALL_ALIAS(__riscv_compat_sys_##name, sys_ni_posix_timers);
-
 #endif /* CONFIG_COMPAT */
 
 #define __SYSCALL_DEFINEx(x, name, ...)						\
@@ -82,6 +79,4 @@ asmlinkage long __riscv_sys_ni_syscall(const struct pt_regs *);
 		return sys_ni_syscall();					\
 	}
 
-#define SYS_NI(name) SYSCALL_ALIAS(__riscv_sys_##name, sys_ni_posix_timers);
-
 #endif /* __ASM_SYSCALL_WRAPPER_H */
diff --git a/arch/riscv/kvm/aia_imsic.c b/arch/riscv/kvm/aia_imsic.c
index 6cf23b8adb71..e808723a85f1 100644
--- a/arch/riscv/kvm/aia_imsic.c
+++ b/arch/riscv/kvm/aia_imsic.c
@@ -55,6 +55,7 @@ struct imsic {
 	/* IMSIC SW-file */
 	struct imsic_mrif *swfile;
 	phys_addr_t swfile_pa;
+	spinlock_t swfile_extirq_lock;
 };
 
 #define imsic_vs_csr_read(__c)			\
@@ -613,12 +614,23 @@ static void imsic_swfile_extirq_update(struct kvm_vcpu *vcpu)
 {
 	struct imsic *imsic = vcpu->arch.aia_context.imsic_state;
 	struct imsic_mrif *mrif = imsic->swfile;
+	unsigned long flags;
+
+	/*
+	 * The critical section is necessary during external interrupt
+	 * updates to avoid the risk of losing interrupts due to potential
+	 * interruptions between reading topei and updating pending status.
+	 */
+
+	spin_lock_irqsave(&imsic->swfile_extirq_lock, flags);
 
 	if (imsic_mrif_atomic_read(mrif, &mrif->eidelivery) &&
 	    imsic_mrif_topei(mrif, imsic->nr_eix, imsic->nr_msis))
 		kvm_riscv_vcpu_set_interrupt(vcpu, IRQ_VS_EXT);
 	else
 		kvm_riscv_vcpu_unset_interrupt(vcpu, IRQ_VS_EXT);
+
+	spin_unlock_irqrestore(&imsic->swfile_extirq_lock, flags);
 }
 
 static void imsic_swfile_read(struct kvm_vcpu *vcpu, bool clear,
@@ -1039,6 +1051,7 @@ int kvm_riscv_vcpu_aia_imsic_init(struct kvm_vcpu *vcpu)
 	}
 	imsic->swfile = page_to_virt(swfile_page);
 	imsic->swfile_pa = page_to_phys(swfile_page);
+	spin_lock_init(&imsic->swfile_extirq_lock);
 
 	/* Setup IO device */
 	kvm_iodevice_init(&imsic->iodev, &imsic_iodoev_ops);
diff --git a/arch/s390/configs/debug_defconfig b/arch/s390/configs/debug_defconfig
index dd0608629310..6de44ede4e14 100644
--- a/arch/s390/configs/debug_defconfig
+++ b/arch/s390/configs/debug_defconfig
@@ -44,8 +44,7 @@ CONFIG_KEXEC_FILE=y
 CONFIG_KEXEC_SIG=y
 CONFIG_CRASH_DUMP=y
 CONFIG_LIVEPATCH=y
-CONFIG_MARCH_ZEC12=y
-CONFIG_TUNE_ZEC12=y
+CONFIG_MARCH_Z13=y
 CONFIG_NR_CPUS=512
 CONFIG_NUMA=y
 CONFIG_HZ_100=y
@@ -76,7 +75,6 @@ CONFIG_MODULE_FORCE_UNLOAD=y
 CONFIG_MODULE_UNLOAD_TAINT_TRACKING=y
 CONFIG_MODVERSIONS=y
 CONFIG_MODULE_SRCVERSION_ALL=y
-CONFIG_MODULE_SIG_SHA256=y
 CONFIG_BLK_DEV_THROTTLING=y
 CONFIG_BLK_WBT=y
 CONFIG_BLK_CGROUP_IOLATENCY=y
@@ -93,6 +91,7 @@ CONFIG_UNIXWARE_DISKLABEL=y
 CONFIG_IOSCHED_BFQ=y
 CONFIG_BINFMT_MISC=m
 CONFIG_ZSWAP=y
+CONFIG_ZSWAP_ZPOOL_DEFAULT_ZBUD=y
 CONFIG_ZSMALLOC_STAT=y
 CONFIG_SLUB_STATS=y
 # CONFIG_COMPAT_BRK is not set
@@ -619,6 +618,9 @@ CONFIG_BTRFS_FS_POSIX_ACL=y
 CONFIG_BTRFS_DEBUG=y
 CONFIG_BTRFS_ASSERT=y
 CONFIG_NILFS2_FS=m
+CONFIG_BCACHEFS_FS=y
+CONFIG_BCACHEFS_QUOTA=y
+CONFIG_BCACHEFS_POSIX_ACL=y
 CONFIG_FS_DAX=y
 CONFIG_EXPORTFS_BLOCK_OPS=y
 CONFIG_FS_ENCRYPTION=y
@@ -691,7 +693,6 @@ CONFIG_PERSISTENT_KEYRINGS=y
 CONFIG_ENCRYPTED_KEYS=m
 CONFIG_KEY_NOTIFICATIONS=y
 CONFIG_SECURITY=y
-CONFIG_SECURITY_NETWORK=y
 CONFIG_HARDENED_USERCOPY=y
 CONFIG_FORTIFY_SOURCE=y
 CONFIG_SECURITY_SELINUX=y
diff --git a/arch/s390/configs/defconfig b/arch/s390/configs/defconfig
index 1b8150e50f6a..bcae47da6b7c 100644
--- a/arch/s390/configs/defconfig
+++ b/arch/s390/configs/defconfig
@@ -42,8 +42,7 @@ CONFIG_KEXEC_FILE=y
 CONFIG_KEXEC_SIG=y
 CONFIG_CRASH_DUMP=y
 CONFIG_LIVEPATCH=y
-CONFIG_MARCH_ZEC12=y
-CONFIG_TUNE_ZEC12=y
+CONFIG_MARCH_Z13=y
 CONFIG_NR_CPUS=512
 CONFIG_NUMA=y
 CONFIG_HZ_100=y
@@ -71,7 +70,6 @@ CONFIG_MODULE_FORCE_UNLOAD=y
 CONFIG_MODULE_UNLOAD_TAINT_TRACKING=y
 CONFIG_MODVERSIONS=y
 CONFIG_MODULE_SRCVERSION_ALL=y
-CONFIG_MODULE_SIG_SHA256=y
 CONFIG_BLK_DEV_THROTTLING=y
 CONFIG_BLK_WBT=y
 CONFIG_BLK_CGROUP_IOLATENCY=y
@@ -88,6 +86,7 @@ CONFIG_UNIXWARE_DISKLABEL=y
 CONFIG_IOSCHED_BFQ=y
 CONFIG_BINFMT_MISC=m
 CONFIG_ZSWAP=y
+CONFIG_ZSWAP_ZPOOL_DEFAULT_ZBUD=y
 CONFIG_ZSMALLOC_STAT=y
 # CONFIG_COMPAT_BRK is not set
 CONFIG_MEMORY_HOTPLUG=y
@@ -605,6 +604,9 @@ CONFIG_OCFS2_FS=m
 CONFIG_BTRFS_FS=y
 CONFIG_BTRFS_FS_POSIX_ACL=y
 CONFIG_NILFS2_FS=m
+CONFIG_BCACHEFS_FS=m
+CONFIG_BCACHEFS_QUOTA=y
+CONFIG_BCACHEFS_POSIX_ACL=y
 CONFIG_FS_DAX=y
 CONFIG_EXPORTFS_BLOCK_OPS=y
 CONFIG_FS_ENCRYPTION=y
@@ -677,7 +679,6 @@ CONFIG_PERSISTENT_KEYRINGS=y
 CONFIG_ENCRYPTED_KEYS=m
 CONFIG_KEY_NOTIFICATIONS=y
 CONFIG_SECURITY=y
-CONFIG_SECURITY_NETWORK=y
 CONFIG_SECURITY_SELINUX=y
 CONFIG_SECURITY_SELINUX_BOOTPARAM=y
 CONFIG_SECURITY_LOCKDOWN_LSM=y
diff --git a/arch/s390/configs/zfcpdump_defconfig b/arch/s390/configs/zfcpdump_defconfig
index b831083b4edd..47028450eee1 100644
--- a/arch/s390/configs/zfcpdump_defconfig
+++ b/arch/s390/configs/zfcpdump_defconfig
@@ -9,8 +9,7 @@ CONFIG_BPF_SYSCALL=y
 CONFIG_BLK_DEV_INITRD=y
 CONFIG_CC_OPTIMIZE_FOR_SIZE=y
 CONFIG_CRASH_DUMP=y
-CONFIG_MARCH_ZEC12=y
-CONFIG_TUNE_ZEC12=y
+CONFIG_MARCH_Z13=y
 # CONFIG_COMPAT is not set
 CONFIG_NR_CPUS=2
 CONFIG_HZ_100=y
diff --git a/arch/s390/include/asm/fpu/api.h b/arch/s390/include/asm/fpu/api.h
index b714ed0ef688..9acf48e53a87 100644
--- a/arch/s390/include/asm/fpu/api.h
+++ b/arch/s390/include/asm/fpu/api.h
@@ -79,7 +79,7 @@ static inline int test_fp_ctl(u32 fpc)
 #define KERNEL_VXR_HIGH		(KERNEL_VXR_V16V23|KERNEL_VXR_V24V31)
 
 #define KERNEL_VXR		(KERNEL_VXR_LOW|KERNEL_VXR_HIGH)
-#define KERNEL_FPR		(KERNEL_FPC|KERNEL_VXR_V0V7)
+#define KERNEL_FPR		(KERNEL_FPC|KERNEL_VXR_LOW)
 
 struct kernel_fpu;
 
diff --git a/arch/s390/include/asm/syscall_wrapper.h b/arch/s390/include/asm/syscall_wrapper.h
index 9286430fe729..35c1d1b860d8 100644
--- a/arch/s390/include/asm/syscall_wrapper.h
+++ b/arch/s390/include/asm/syscall_wrapper.h
@@ -63,10 +63,6 @@
 	cond_syscall(__s390x_sys_##name);				\
 	cond_syscall(__s390_sys_##name)
 
-#define SYS_NI(name)							\
-	SYSCALL_ALIAS(__s390x_sys_##name, sys_ni_posix_timers);		\
-	SYSCALL_ALIAS(__s390_sys_##name, sys_ni_posix_timers)
-
 #define COMPAT_SYSCALL_DEFINEx(x, name, ...)						\
 	long __s390_compat_sys##name(struct pt_regs *regs);				\
 	ALLOW_ERROR_INJECTION(__s390_compat_sys##name, ERRNO);				\
@@ -85,15 +81,11 @@
 
 /*
  * As some compat syscalls may not be implemented, we need to expand
- * COND_SYSCALL_COMPAT in kernel/sys_ni.c and COMPAT_SYS_NI in
- * kernel/time/posix-stubs.c to cover this case as well.
+ * COND_SYSCALL_COMPAT in kernel/sys_ni.c to cover this case as well.
  */
 #define COND_SYSCALL_COMPAT(name)					\
 	cond_syscall(__s390_compat_sys_##name)
 
-#define COMPAT_SYS_NI(name)						\
-	SYSCALL_ALIAS(__s390_compat_sys_##name, sys_ni_posix_timers)
-
 #define __S390_SYS_STUBx(x, name, ...)						\
 	long __s390_sys##name(struct pt_regs *regs);				\
 	ALLOW_ERROR_INJECTION(__s390_sys##name, ERRNO);				\
@@ -124,9 +116,6 @@
 #define COND_SYSCALL(name)						\
 	cond_syscall(__s390x_sys_##name)
 
-#define SYS_NI(name)							\
-	SYSCALL_ALIAS(__s390x_sys_##name, sys_ni_posix_timers)
-
 #define __S390_SYS_STUBx(x, fullname, name, ...)
 
 #endif /* CONFIG_COMPAT */
diff --git a/arch/x86/include/asm/syscall_wrapper.h b/arch/x86/include/asm/syscall_wrapper.h
index fd2669b1cb2d..21f9407be5d3 100644
--- a/arch/x86/include/asm/syscall_wrapper.h
+++ b/arch/x86/include/asm/syscall_wrapper.h
@@ -86,9 +86,6 @@ extern long __ia32_sys_ni_syscall(const struct pt_regs *regs);
 		return sys_ni_syscall();				\
 	}
 
-#define __SYS_NI(abi, name)						\
-	SYSCALL_ALIAS(__##abi##_##name, sys_ni_posix_timers);
-
 #ifdef CONFIG_X86_64
 #define __X64_SYS_STUB0(name)						\
 	__SYS_STUB0(x64, sys_##name)
@@ -100,13 +97,10 @@ extern long __ia32_sys_ni_syscall(const struct pt_regs *regs);
 #define __X64_COND_SYSCALL(name)					\
 	__COND_SYSCALL(x64, sys_##name)
 
-#define __X64_SYS_NI(name)						\
-	__SYS_NI(x64, sys_##name)
 #else /* CONFIG_X86_64 */
 #define __X64_SYS_STUB0(name)
 #define __X64_SYS_STUBx(x, name, ...)
 #define __X64_COND_SYSCALL(name)
-#define __X64_SYS_NI(name)
 #endif /* CONFIG_X86_64 */
 
 #if defined(CONFIG_X86_32) || defined(CONFIG_IA32_EMULATION)
@@ -120,13 +114,10 @@ extern long __ia32_sys_ni_syscall(const struct pt_regs *regs);
 #define __IA32_COND_SYSCALL(name)					\
 	__COND_SYSCALL(ia32, sys_##name)
 
-#define __IA32_SYS_NI(name)						\
-	__SYS_NI(ia32, sys_##name)
 #else /* CONFIG_X86_32 || CONFIG_IA32_EMULATION */
 #define __IA32_SYS_STUB0(name)
 #define __IA32_SYS_STUBx(x, name, ...)
 #define __IA32_COND_SYSCALL(name)
-#define __IA32_SYS_NI(name)
 #endif /* CONFIG_X86_32 || CONFIG_IA32_EMULATION */
 
 #ifdef CONFIG_IA32_EMULATION
@@ -135,8 +126,7 @@ extern long __ia32_sys_ni_syscall(const struct pt_regs *regs);
  * additional wrappers (aptly named __ia32_sys_xyzzy) which decode the
  * ia32 regs in the proper order for shared or "common" syscalls. As some
  * syscalls may not be implemented, we need to expand COND_SYSCALL in
- * kernel/sys_ni.c and SYS_NI in kernel/time/posix-stubs.c to cover this
- * case as well.
+ * kernel/sys_ni.c to cover this case as well.
  */
 #define __IA32_COMPAT_SYS_STUB0(name)					\
 	__SYS_STUB0(ia32, compat_sys_##name)
@@ -148,14 +138,10 @@ extern long __ia32_sys_ni_syscall(const struct pt_regs *regs);
 #define __IA32_COMPAT_COND_SYSCALL(name)				\
 	__COND_SYSCALL(ia32, compat_sys_##name)
 
-#define __IA32_COMPAT_SYS_NI(name)					\
-	__SYS_NI(ia32, compat_sys_##name)
-
 #else /* CONFIG_IA32_EMULATION */
 #define __IA32_COMPAT_SYS_STUB0(name)
 #define __IA32_COMPAT_SYS_STUBx(x, name, ...)
 #define __IA32_COMPAT_COND_SYSCALL(name)
-#define __IA32_COMPAT_SYS_NI(name)
 #endif /* CONFIG_IA32_EMULATION */
 
 
@@ -175,13 +161,10 @@ extern long __ia32_sys_ni_syscall(const struct pt_regs *regs);
 #define __X32_COMPAT_COND_SYSCALL(name)					\
 	__COND_SYSCALL(x64, compat_sys_##name)
 
-#define __X32_COMPAT_SYS_NI(name)					\
-	__SYS_NI(x64, compat_sys_##name)
 #else /* CONFIG_X86_X32_ABI */
 #define __X32_COMPAT_SYS_STUB0(name)
 #define __X32_COMPAT_SYS_STUBx(x, name, ...)
 #define __X32_COMPAT_COND_SYSCALL(name)
-#define __X32_COMPAT_SYS_NI(name)
 #endif /* CONFIG_X86_X32_ABI */
 
 
@@ -212,17 +195,12 @@ extern long __ia32_sys_ni_syscall(const struct pt_regs *regs);
 
 /*
  * As some compat syscalls may not be implemented, we need to expand
- * COND_SYSCALL_COMPAT in kernel/sys_ni.c and COMPAT_SYS_NI in
- * kernel/time/posix-stubs.c to cover this case as well.
+ * COND_SYSCALL_COMPAT in kernel/sys_ni.c to cover this case as well.
  */
 #define COND_SYSCALL_COMPAT(name) 					\
 	__IA32_COMPAT_COND_SYSCALL(name)				\
 	__X32_COMPAT_COND_SYSCALL(name)
 
-#define COMPAT_SYS_NI(name)						\
-	__IA32_COMPAT_SYS_NI(name)					\
-	__X32_COMPAT_SYS_NI(name)
-
 #endif /* CONFIG_COMPAT */
 
 #define __SYSCALL_DEFINEx(x, name, ...)					\
@@ -243,8 +221,8 @@ extern long __ia32_sys_ni_syscall(const struct pt_regs *regs);
  * As the generic SYSCALL_DEFINE0() macro does not decode any parameters for
  * obvious reasons, and passing struct pt_regs *regs to it in %rdi does not
  * hurt, we only need to re-define it here to keep the naming congruent to
- * SYSCALL_DEFINEx() -- which is essential for the COND_SYSCALL() and SYS_NI()
- * macros to work correctly.
+ * SYSCALL_DEFINEx() -- which is essential for the COND_SYSCALL() macro
+ * to work correctly.
  */
 #define SYSCALL_DEFINE0(sname)						\
 	SYSCALL_METADATA(_##sname, 0);					\
@@ -257,10 +235,6 @@ extern long __ia32_sys_ni_syscall(const struct pt_regs *regs);
 	__X64_COND_SYSCALL(name)					\
 	__IA32_COND_SYSCALL(name)
 
-#define SYS_NI(name)							\
-	__X64_SYS_NI(name)						\
-	__IA32_SYS_NI(name)
-
 
 /*
  * For VSYSCALLS, we need to declare these three syscalls with the new
diff --git a/arch/x86/kvm/svm/sev.c b/arch/x86/kvm/svm/sev.c
index 4900c078045a..6ee925d66648 100644
--- a/arch/x86/kvm/svm/sev.c
+++ b/arch/x86/kvm/svm/sev.c
@@ -2972,6 +2972,25 @@ static void sev_es_vcpu_after_set_cpuid(struct vcpu_svm *svm)
 
 		set_msr_interception(vcpu, svm->msrpm, MSR_TSC_AUX, v_tsc_aux, v_tsc_aux);
 	}
+
+	/*
+	 * For SEV-ES, accesses to MSR_IA32_XSS should not be intercepted if
+	 * the host/guest supports its use.
+	 *
+	 * guest_can_use() checks a number of requirements on the host/guest to
+	 * ensure that MSR_IA32_XSS is available, but it might report true even
+	 * if X86_FEATURE_XSAVES isn't configured in the guest to ensure host
+	 * MSR_IA32_XSS is always properly restored. For SEV-ES, it is better
+	 * to further check that the guest CPUID actually supports
+	 * X86_FEATURE_XSAVES so that accesses to MSR_IA32_XSS by misbehaved
+	 * guests will still get intercepted and caught in the normal
+	 * kvm_emulate_rdmsr()/kvm_emulated_wrmsr() paths.
+	 */
+	if (guest_can_use(vcpu, X86_FEATURE_XSAVES) &&
+	    guest_cpuid_has(vcpu, X86_FEATURE_XSAVES))
+		set_msr_interception(vcpu, svm->msrpm, MSR_IA32_XSS, 1, 1);
+	else
+		set_msr_interception(vcpu, svm->msrpm, MSR_IA32_XSS, 0, 0);
 }
 
 void sev_vcpu_after_set_cpuid(struct vcpu_svm *svm)
diff --git a/arch/x86/kvm/svm/svm.c b/arch/x86/kvm/svm/svm.c
index f3bb30b40876..a8bd4e909a1e 100644
--- a/arch/x86/kvm/svm/svm.c
+++ b/arch/x86/kvm/svm/svm.c
@@ -103,6 +103,7 @@ static const struct svm_direct_access_msrs {
 	{ .index = MSR_IA32_LASTBRANCHTOIP,		.always = false },
 	{ .index = MSR_IA32_LASTINTFROMIP,		.always = false },
 	{ .index = MSR_IA32_LASTINTTOIP,		.always = false },
+	{ .index = MSR_IA32_XSS,			.always = false },
 	{ .index = MSR_EFER,				.always = false },
 	{ .index = MSR_IA32_CR_PAT,			.always = false },
 	{ .index = MSR_AMD64_SEV_ES_GHCB,		.always = true  },
diff --git a/arch/x86/kvm/svm/svm.h b/arch/x86/kvm/svm/svm.h
index be67ab7fdd10..c409f934c377 100644
--- a/arch/x86/kvm/svm/svm.h
+++ b/arch/x86/kvm/svm/svm.h
@@ -30,7 +30,7 @@
 #define	IOPM_SIZE PAGE_SIZE * 3
 #define	MSRPM_SIZE PAGE_SIZE * 2
 
-#define MAX_DIRECT_ACCESS_MSRS	46
+#define MAX_DIRECT_ACCESS_MSRS	47
 #define MSRPM_OFFSETS	32
 extern u32 msrpm_offsets[MSRPM_OFFSETS] __read_mostly;
 extern bool npt_enabled;
diff --git a/arch/x86/xen/Kconfig b/arch/x86/xen/Kconfig
index 9b1ec5d8c99c..a65fc2ae15b4 100644
--- a/arch/x86/xen/Kconfig
+++ b/arch/x86/xen/Kconfig
@@ -9,6 +9,7 @@ config XEN
 	select PARAVIRT_CLOCK
 	select X86_HV_CALLBACK_VECTOR
 	depends on X86_64 || (X86_32 && X86_PAE)
+	depends on X86_64 || (X86_GENERIC || MPENTIUM4 || MCORE2 || MATOM || MK8)
 	depends on X86_LOCAL_APIC && X86_TSC
 	help
 	  This is the Linux Xen port.  Enabling this will allow the