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From: Ingo Molnar <mingo@kernel.org>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org,
	Thomas Gleixner <tglx@linutronix.de>,
	"H. Peter Anvin" <hpa@zytor.com>,
	Peter Zijlstra <a.p.zijlstra@chello.nl>,
	Andrew Morton <akpm@linux-foundation.org>
Subject: [GIT PULL] x86 fixes
Date: Fri, 12 Aug 2016 21:46:46 +0200
Message-ID: <20160812194646.GA30997@gmail.com> (raw)

Linus,

Please pull the latest x86-urgent-for-linus git tree from:

   git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git x86-urgent-for-linus

   # HEAD: d52c0569bab4edc888832df44dc7ac28517134f6 x86/apic/x2apic, smp/hotplug: Don't use before alloc in x2apic_cluster_probe()

This is bigger than usual - the reason is partly a pent-up stream of fixes after 
the merge window and partly accidental. The fixes are:

 - 5 patches to fix a boot failure on Andy Lutomirsky's laptop.
 - a KASAN fix
 - 4 SGI UV platform fixes
 - a warnings fix
 - a documentation update
 - a swap entry definition fix
 - a pkeys fix
 - an irq stats fix

 Thanks,

	Ingo

------------------>
Aaron Lu (1):
      x86/irq: Do not substract irq_tlb_count from irq_call_count

Alexander Potapenko (1):
      x86, kasan, ftrace: Put APIC interrupt handlers into .irqentry.text

Andy Lutomirski (5):
      x86/boot: Run reserve_bios_regions() after we initialize the memory map
      x86/boot: Synchronize trampoline_cr4_features and mmu_cr4_features directly
      x86/boot: Defer setup_real_mode() to early_initcall time
      x86/boot: Rework reserve_real_mode() to allow multiple tries
      x86/efi: Allocate a trampoline if needed in efi_free_boot_services()

Borislav Petkov (1):
      x86/entry: Clarify the RF saving/restoring situation with SYSCALL/SYSRET

Dave Hansen (2):
      x86/mm/pkeys: Fix compact mode by removing protection keys' XSAVE buffer manipulation
      x86/mm: Fix swap entry comment and macro

Mike Travis (4):
      x86/platform/UV: Fix problem with UV4 Socket IDs not being contiguous
      x86/platform/UV: Fix bug with iounmap() of the UV4 EFI System Table causing a crash
      x86/platform/UV: Fix problem with UV4 BIOS providing incorrect PXM values
      x86/platform/UV: Fix kernel panic running RHEL kdump kernel on UV systems

Nicolas Iooss (1):
      x86/mm/kaslr: Fix -Wformat-security warning

Sebastian Andrzej Siewior (2):
      x86/mm: Disable preemption during CR3 read+write
      x86/apic/x2apic, smp/hotplug: Don't use before alloc in x2apic_cluster_probe()

Thomas Garnier (2):
      x86/mm/KASLR: Fix physical memory calculation on KASLR memory randomization
      x86/mm/KASLR: Increase BRK pages for KASLR memory randomization

Valdis Kletnieks (1):
      x86/build: Reduce the W=1 warnings noise when compiling x86 syscall tables


 arch/x86/entry/Makefile               |   2 +
 arch/x86/entry/entry_64.S             |  25 ++++--
 arch/x86/include/asm/hardirq.h        |   4 -
 arch/x86/include/asm/pgtable_64.h     |   4 +-
 arch/x86/include/asm/realmode.h       |  10 ++-
 arch/x86/include/asm/tlbflush.h       |   7 ++
 arch/x86/include/asm/uv/bios.h        |   5 +-
 arch/x86/kernel/apic/x2apic_cluster.c |  13 +++-
 arch/x86/kernel/apic/x2apic_uv_x.c    |  42 +++++------
 arch/x86/kernel/fpu/xstate.c          | 138 +++++-----------------------------
 arch/x86/kernel/head32.c              |   2 -
 arch/x86/kernel/head64.c              |   1 -
 arch/x86/kernel/irq.c                 |   3 +-
 arch/x86/kernel/setup.c               |  27 ++++---
 arch/x86/lib/kaslr.c                  |   2 +-
 arch/x86/mm/init.c                    |  14 +++-
 arch/x86/mm/kaslr.c                   |   2 +-
 arch/x86/platform/efi/quirks.c        |  21 ++++++
 arch/x86/platform/uv/bios_uv.c        |   8 +-
 arch/x86/realmode/init.c              |  47 +++++++++---
 20 files changed, 182 insertions(+), 195 deletions(-)

diff --git a/arch/x86/entry/Makefile b/arch/x86/entry/Makefile
index fe91c25092da..77f28ce9c646 100644
--- a/arch/x86/entry/Makefile
+++ b/arch/x86/entry/Makefile
@@ -5,6 +5,8 @@
 OBJECT_FILES_NON_STANDARD_entry_$(BITS).o   := y
 OBJECT_FILES_NON_STANDARD_entry_64_compat.o := y
 
+CFLAGS_syscall_64.o		+= -Wno-override-init
+CFLAGS_syscall_32.o		+= -Wno-override-init
 obj-y				:= entry_$(BITS).o thunk_$(BITS).o syscall_$(BITS).o
 obj-y				+= common.o
 
diff --git a/arch/x86/entry/entry_64.S b/arch/x86/entry/entry_64.S
index b846875aeea6..d172c619c449 100644
--- a/arch/x86/entry/entry_64.S
+++ b/arch/x86/entry/entry_64.S
@@ -288,11 +288,15 @@ GLOBAL(entry_SYSCALL_64_after_swapgs)
 	jne	opportunistic_sysret_failed
 
 	/*
-	 * SYSRET can't restore RF.  SYSRET can restore TF, but unlike IRET,
-	 * restoring TF results in a trap from userspace immediately after
-	 * SYSRET.  This would cause an infinite loop whenever #DB happens
-	 * with register state that satisfies the opportunistic SYSRET
-	 * conditions.  For example, single-stepping this user code:
+	 * SYSCALL clears RF when it saves RFLAGS in R11 and SYSRET cannot
+	 * restore RF properly. If the slowpath sets it for whatever reason, we
+	 * need to restore it correctly.
+	 *
+	 * SYSRET can restore TF, but unlike IRET, restoring TF results in a
+	 * trap from userspace immediately after SYSRET.  This would cause an
+	 * infinite loop whenever #DB happens with register state that satisfies
+	 * the opportunistic SYSRET conditions.  For example, single-stepping
+	 * this user code:
 	 *
 	 *           movq	$stuck_here, %rcx
 	 *           pushfq
@@ -601,9 +605,20 @@ apicinterrupt3 \num trace(\sym) smp_trace(\sym)
 .endm
 #endif
 
+/* Make sure APIC interrupt handlers end up in the irqentry section: */
+#if defined(CONFIG_FUNCTION_GRAPH_TRACER) || defined(CONFIG_KASAN)
+# define PUSH_SECTION_IRQENTRY	.pushsection .irqentry.text, "ax"
+# define POP_SECTION_IRQENTRY	.popsection
+#else
+# define PUSH_SECTION_IRQENTRY
+# define POP_SECTION_IRQENTRY
+#endif
+
 .macro apicinterrupt num sym do_sym
+PUSH_SECTION_IRQENTRY
 apicinterrupt3 \num \sym \do_sym
 trace_apicinterrupt \num \sym
+POP_SECTION_IRQENTRY
 .endm
 
 #ifdef CONFIG_SMP
diff --git a/arch/x86/include/asm/hardirq.h b/arch/x86/include/asm/hardirq.h
index 7178043b0e1d..59405a248fc2 100644
--- a/arch/x86/include/asm/hardirq.h
+++ b/arch/x86/include/asm/hardirq.h
@@ -22,10 +22,6 @@ typedef struct {
 #ifdef CONFIG_SMP
 	unsigned int irq_resched_count;
 	unsigned int irq_call_count;
-	/*
-	 * irq_tlb_count is double-counted in irq_call_count, so it must be
-	 * subtracted from irq_call_count when displaying irq_call_count
-	 */
 	unsigned int irq_tlb_count;
 #endif
 #ifdef CONFIG_X86_THERMAL_VECTOR
diff --git a/arch/x86/include/asm/pgtable_64.h b/arch/x86/include/asm/pgtable_64.h
index 7e8ec7ae10fa..1cc82ece9ac1 100644
--- a/arch/x86/include/asm/pgtable_64.h
+++ b/arch/x86/include/asm/pgtable_64.h
@@ -145,7 +145,7 @@ static inline int pgd_large(pgd_t pgd) { return 0; }
  *
  * |     ...            | 11| 10|  9|8|7|6|5| 4| 3|2|1|0| <- bit number
  * |     ...            |SW3|SW2|SW1|G|L|D|A|CD|WT|U|W|P| <- bit names
- * | OFFSET (14->63) | TYPE (10-13) |0|X|X|X| X| X|X|X|0| <- swp entry
+ * | OFFSET (14->63) | TYPE (9-13)  |0|X|X|X| X| X|X|X|0| <- swp entry
  *
  * G (8) is aliased and used as a PROT_NONE indicator for
  * !present ptes.  We need to start storing swap entries above
@@ -156,7 +156,7 @@ static inline int pgd_large(pgd_t pgd) { return 0; }
 #define SWP_TYPE_FIRST_BIT (_PAGE_BIT_PROTNONE + 1)
 #define SWP_TYPE_BITS 5
 /* Place the offset above the type: */
-#define SWP_OFFSET_FIRST_BIT (SWP_TYPE_FIRST_BIT + SWP_TYPE_BITS + 1)
+#define SWP_OFFSET_FIRST_BIT (SWP_TYPE_FIRST_BIT + SWP_TYPE_BITS)
 
 #define MAX_SWAPFILES_CHECK() BUILD_BUG_ON(MAX_SWAPFILES_SHIFT > SWP_TYPE_BITS)
 
diff --git a/arch/x86/include/asm/realmode.h b/arch/x86/include/asm/realmode.h
index 9c6b890d5e7a..b2988c0ed829 100644
--- a/arch/x86/include/asm/realmode.h
+++ b/arch/x86/include/asm/realmode.h
@@ -58,7 +58,15 @@ extern unsigned char boot_gdt[];
 extern unsigned char secondary_startup_64[];
 #endif
 
+static inline size_t real_mode_size_needed(void)
+{
+	if (real_mode_header)
+		return 0;	/* already allocated. */
+
+	return ALIGN(real_mode_blob_end - real_mode_blob, PAGE_SIZE);
+}
+
+void set_real_mode_mem(phys_addr_t mem, size_t size);
 void reserve_real_mode(void);
-void setup_real_mode(void);
 
 #endif /* _ARCH_X86_REALMODE_H */
diff --git a/arch/x86/include/asm/tlbflush.h b/arch/x86/include/asm/tlbflush.h
index 4e5be94e079a..6fa85944af83 100644
--- a/arch/x86/include/asm/tlbflush.h
+++ b/arch/x86/include/asm/tlbflush.h
@@ -135,7 +135,14 @@ static inline void cr4_set_bits_and_update_boot(unsigned long mask)
 
 static inline void __native_flush_tlb(void)
 {
+	/*
+	 * If current->mm == NULL then we borrow a mm which may change during a
+	 * task switch and therefore we must not be preempted while we write CR3
+	 * back:
+	 */
+	preempt_disable();
 	native_write_cr3(native_read_cr3());
+	preempt_enable();
 }
 
 static inline void __native_flush_tlb_global_irq_disabled(void)
diff --git a/arch/x86/include/asm/uv/bios.h b/arch/x86/include/asm/uv/bios.h
index c852590254d5..e652a7cc6186 100644
--- a/arch/x86/include/asm/uv/bios.h
+++ b/arch/x86/include/asm/uv/bios.h
@@ -79,7 +79,7 @@ struct uv_gam_range_entry {
 	u16	nasid;		/* HNasid */
 	u16	sockid;		/* Socket ID, high bits of APIC ID */
 	u16	pnode;		/* Index to MMR and GRU spaces */
-	u32	pxm;		/* ACPI proximity domain number */
+	u32	unused2;
 	u32	limit;		/* PA bits 56:26 (UV_GAM_RANGE_SHFT) */
 };
 
@@ -88,7 +88,8 @@ struct uv_gam_range_entry {
 #define	UV_SYSTAB_VERSION_UV4		0x400	/* UV4 BIOS base version */
 #define	UV_SYSTAB_VERSION_UV4_1		0x401	/* + gpa_shift */
 #define	UV_SYSTAB_VERSION_UV4_2		0x402	/* + TYPE_NVRAM/WINDOW/MBOX */
-#define	UV_SYSTAB_VERSION_UV4_LATEST	UV_SYSTAB_VERSION_UV4_2
+#define	UV_SYSTAB_VERSION_UV4_3		0x403	/* - GAM Range PXM Value */
+#define	UV_SYSTAB_VERSION_UV4_LATEST	UV_SYSTAB_VERSION_UV4_3
 
 #define	UV_SYSTAB_TYPE_UNUSED		0	/* End of table (offset == 0) */
 #define	UV_SYSTAB_TYPE_GAM_PARAMS	1	/* GAM PARAM conversions */
diff --git a/arch/x86/kernel/apic/x2apic_cluster.c b/arch/x86/kernel/apic/x2apic_cluster.c
index 6368fa69d2af..54f35d988025 100644
--- a/arch/x86/kernel/apic/x2apic_cluster.c
+++ b/arch/x86/kernel/apic/x2apic_cluster.c
@@ -155,7 +155,7 @@ static void init_x2apic_ldr(void)
 /*
  * At CPU state changes, update the x2apic cluster sibling info.
  */
-int x2apic_prepare_cpu(unsigned int cpu)
+static int x2apic_prepare_cpu(unsigned int cpu)
 {
 	if (!zalloc_cpumask_var(&per_cpu(cpus_in_cluster, cpu), GFP_KERNEL))
 		return -ENOMEM;
@@ -168,7 +168,7 @@ int x2apic_prepare_cpu(unsigned int cpu)
 	return 0;
 }
 
-int x2apic_dead_cpu(unsigned int this_cpu)
+static int x2apic_dead_cpu(unsigned int this_cpu)
 {
 	int cpu;
 
@@ -186,13 +186,18 @@ int x2apic_dead_cpu(unsigned int this_cpu)
 static int x2apic_cluster_probe(void)
 {
 	int cpu = smp_processor_id();
+	int ret;
 
 	if (!x2apic_mode)
 		return 0;
 
+	ret = cpuhp_setup_state(CPUHP_X2APIC_PREPARE, "X2APIC_PREPARE",
+				x2apic_prepare_cpu, x2apic_dead_cpu);
+	if (ret < 0) {
+		pr_err("Failed to register X2APIC_PREPARE\n");
+		return 0;
+	}
 	cpumask_set_cpu(cpu, per_cpu(cpus_in_cluster, cpu));
-	cpuhp_setup_state(CPUHP_X2APIC_PREPARE, "X2APIC_PREPARE",
-			  x2apic_prepare_cpu, x2apic_dead_cpu);
 	return 1;
 }
 
diff --git a/arch/x86/kernel/apic/x2apic_uv_x.c b/arch/x86/kernel/apic/x2apic_uv_x.c
index 09b59adaea3f..cb0673c1e940 100644
--- a/arch/x86/kernel/apic/x2apic_uv_x.c
+++ b/arch/x86/kernel/apic/x2apic_uv_x.c
@@ -223,6 +223,11 @@ static int __init uv_acpi_madt_oem_check(char *oem_id, char *oem_table_id)
 	if (strncmp(oem_id, "SGI", 3) != 0)
 		return 0;
 
+	if (numa_off) {
+		pr_err("UV: NUMA is off, disabling UV support\n");
+		return 0;
+	}
+
 	/* Setup early hub type field in uv_hub_info for Node 0 */
 	uv_cpu_info->p_uv_hub_info = &uv_hub_info_node0;
 
@@ -325,7 +330,7 @@ static __init void build_uv_gr_table(void)
 	struct uv_gam_range_entry *gre = uv_gre_table;
 	struct uv_gam_range_s *grt;
 	unsigned long last_limit = 0, ram_limit = 0;
-	int bytes, i, sid, lsid = -1;
+	int bytes, i, sid, lsid = -1, indx = 0, lindx = -1;
 
 	if (!gre)
 		return;
@@ -356,11 +361,12 @@ static __init void build_uv_gr_table(void)
 		}
 		sid = gre->sockid - _min_socket;
 		if (lsid < sid) {		/* new range */
-			grt = &_gr_table[sid];
-			grt->base = lsid;
+			grt = &_gr_table[indx];
+			grt->base = lindx;
 			grt->nasid = gre->nasid;
 			grt->limit = last_limit = gre->limit;
 			lsid = sid;
+			lindx = indx++;
 			continue;
 		}
 		if (lsid == sid && !ram_limit) {	/* update range */
@@ -371,7 +377,7 @@ static __init void build_uv_gr_table(void)
 		}
 		if (!ram_limit) {		/* non-contiguous ram range */
 			grt++;
-			grt->base = sid - 1;
+			grt->base = lindx;
 			grt->nasid = gre->nasid;
 			grt->limit = last_limit = gre->limit;
 			continue;
@@ -1155,19 +1161,18 @@ static void __init decode_gam_rng_tbl(unsigned long ptr)
 	for (; gre->type != UV_GAM_RANGE_TYPE_UNUSED; gre++) {
 		if (!index) {
 			pr_info("UV: GAM Range Table...\n");
-			pr_info("UV:  # %20s %14s %5s %4s %5s %3s %2s %3s\n",
+			pr_info("UV:  # %20s %14s %5s %4s %5s %3s %2s\n",
 				"Range", "", "Size", "Type", "NASID",
-				"SID", "PN", "PXM");
+				"SID", "PN");
 		}
 		pr_info(
-		"UV: %2d: 0x%014lx-0x%014lx %5luG %3d   %04x  %02x %02x %3d\n",
+		"UV: %2d: 0x%014lx-0x%014lx %5luG %3d   %04x  %02x %02x\n",
 			index++,
 			(unsigned long)lgre << UV_GAM_RANGE_SHFT,
 			(unsigned long)gre->limit << UV_GAM_RANGE_SHFT,
 			((unsigned long)(gre->limit - lgre)) >>
 				(30 - UV_GAM_RANGE_SHFT), /* 64M -> 1G */
-			gre->type, gre->nasid, gre->sockid,
-			gre->pnode, gre->pxm);
+			gre->type, gre->nasid, gre->sockid, gre->pnode);
 
 		lgre = gre->limit;
 		if (sock_min > gre->sockid)
@@ -1286,7 +1291,7 @@ static void __init build_socket_tables(void)
 		_pnode_to_socket[i] = SOCK_EMPTY;
 
 	/* fill in pnode/node/addr conversion list values */
-	pr_info("UV: GAM Building socket/pnode/pxm conversion tables\n");
+	pr_info("UV: GAM Building socket/pnode conversion tables\n");
 	for (; gre->type != UV_GAM_RANGE_TYPE_UNUSED; gre++) {
 		if (gre->type == UV_GAM_RANGE_TYPE_HOLE)
 			continue;
@@ -1294,20 +1299,18 @@ static void __init build_socket_tables(void)
 		if (_socket_to_pnode[i] != SOCK_EMPTY)
 			continue;	/* duplicate */
 		_socket_to_pnode[i] = gre->pnode;
-		_socket_to_node[i] = gre->pxm;
 
 		i = gre->pnode - minpnode;
 		_pnode_to_socket[i] = gre->sockid;
 
 		pr_info(
-		"UV: sid:%02x type:%d nasid:%04x pn:%02x pxm:%2d pn2s:%2x\n",
+		"UV: sid:%02x type:%d nasid:%04x pn:%02x pn2s:%2x\n",
 			gre->sockid, gre->type, gre->nasid,
 			_socket_to_pnode[gre->sockid - minsock],
-			_socket_to_node[gre->sockid - minsock],
 			_pnode_to_socket[gre->pnode - minpnode]);
 	}
 
-	/* check socket -> node values */
+	/* Set socket -> node values */
 	lnid = -1;
 	for_each_present_cpu(cpu) {
 		int nid = cpu_to_node(cpu);
@@ -1318,14 +1321,9 @@ static void __init build_socket_tables(void)
 		lnid = nid;
 		apicid = per_cpu(x86_cpu_to_apicid, cpu);
 		sockid = apicid >> uv_cpuid.socketid_shift;
-		i = sockid - minsock;
-
-		if (nid != _socket_to_node[i]) {
-			pr_warn(
-			"UV: %02x: type:%d socket:%02x PXM:%02x != node:%2d\n",
-				i, sockid, gre->type, _socket_to_node[i], nid);
-			_socket_to_node[i] = nid;
-		}
+		_socket_to_node[sockid - minsock] = nid;
+		pr_info("UV: sid:%02x: apicid:%04x node:%2d\n",
+			sockid, apicid, nid);
 	}
 
 	/* Setup physical blade to pnode translation from GAM Range Table */
diff --git a/arch/x86/kernel/fpu/xstate.c b/arch/x86/kernel/fpu/xstate.c
index 680049aa4593..01567aa87503 100644
--- a/arch/x86/kernel/fpu/xstate.c
+++ b/arch/x86/kernel/fpu/xstate.c
@@ -866,105 +866,17 @@ const void *get_xsave_field_ptr(int xsave_state)
 	return get_xsave_addr(&fpu->state.xsave, xsave_state);
 }
 
-
-/*
- * Set xfeatures (aka XSTATE_BV) bit for a feature that we want
- * to take out of its "init state".  This will ensure that an
- * XRSTOR actually restores the state.
- */
-static void fpu__xfeature_set_non_init(struct xregs_state *xsave,
-		int xstate_feature_mask)
-{
-	xsave->header.xfeatures |= xstate_feature_mask;
-}
-
-/*
- * This function is safe to call whether the FPU is in use or not.
- *
- * Note that this only works on the current task.
- *
- * Inputs:
- *	@xsave_state: state which is defined in xsave.h (e.g. XFEATURE_MASK_FP,
- *	XFEATURE_MASK_SSE, etc...)
- *	@xsave_state_ptr: a pointer to a copy of the state that you would
- *	like written in to the current task's FPU xsave state.  This pointer
- *	must not be located in the current tasks's xsave area.
- * Output:
- *	address of the state in the xsave area or NULL if the state
- *	is not present or is in its 'init state'.
- */
-static void fpu__xfeature_set_state(int xstate_feature_mask,
-		void *xstate_feature_src, size_t len)
-{
-	struct xregs_state *xsave = &current->thread.fpu.state.xsave;
-	struct fpu *fpu = &current->thread.fpu;
-	void *dst;
-
-	if (!boot_cpu_has(X86_FEATURE_XSAVE)) {
-		WARN_ONCE(1, "%s() attempted with no xsave support", __func__);
-		return;
-	}
-
-	/*
-	 * Tell the FPU code that we need the FPU state to be in
-	 * 'fpu' (not in the registers), and that we need it to
-	 * be stable while we write to it.
-	 */
-	fpu__current_fpstate_write_begin();
-
-	/*
-	 * This method *WILL* *NOT* work for compact-format
-	 * buffers.  If the 'xstate_feature_mask' is unset in
-	 * xcomp_bv then we may need to move other feature state
-	 * "up" in the buffer.
-	 */
-	if (xsave->header.xcomp_bv & xstate_feature_mask) {
-		WARN_ON_ONCE(1);
-		goto out;
-	}
-
-	/* find the location in the xsave buffer of the desired state */
-	dst = __raw_xsave_addr(&fpu->state.xsave, xstate_feature_mask);
-
-	/*
-	 * Make sure that the pointer being passed in did not
-	 * come from the xsave buffer itself.
-	 */
-	WARN_ONCE(xstate_feature_src == dst, "set from xsave buffer itself");
-
-	/* put the caller-provided data in the location */
-	memcpy(dst, xstate_feature_src, len);
-
-	/*
-	 * Mark the xfeature so that the CPU knows there is state
-	 * in the buffer now.
-	 */
-	fpu__xfeature_set_non_init(xsave, xstate_feature_mask);
-out:
-	/*
-	 * We are done writing to the 'fpu'.  Reenable preeption
-	 * and (possibly) move the fpstate back in to the fpregs.
-	 */
-	fpu__current_fpstate_write_end();
-}
-
 #define NR_VALID_PKRU_BITS (CONFIG_NR_PROTECTION_KEYS * 2)
 #define PKRU_VALID_MASK (NR_VALID_PKRU_BITS - 1)
 
 /*
- * This will go out and modify the XSAVE buffer so that PKRU is
- * set to a particular state for access to 'pkey'.
- *
- * PKRU state does affect kernel access to user memory.  We do
- * not modfiy PKRU *itself* here, only the XSAVE state that will
- * be restored in to PKRU when we return back to userspace.
+ * This will go out and modify PKRU register to set the access
+ * rights for @pkey to @init_val.
  */
 int arch_set_user_pkey_access(struct task_struct *tsk, int pkey,
 		unsigned long init_val)
 {
-	struct xregs_state *xsave = &tsk->thread.fpu.state.xsave;
-	struct pkru_state *old_pkru_state;
-	struct pkru_state new_pkru_state;
+	u32 old_pkru;
 	int pkey_shift = (pkey * PKRU_BITS_PER_PKEY);
 	u32 new_pkru_bits = 0;
 
@@ -974,6 +886,15 @@ int arch_set_user_pkey_access(struct task_struct *tsk, int pkey,
 	 */
 	if (!boot_cpu_has(X86_FEATURE_OSPKE))
 		return -EINVAL;
+	/*
+	 * For most XSAVE components, this would be an arduous task:
+	 * brining fpstate up to date with fpregs, updating fpstate,
+	 * then re-populating fpregs.  But, for components that are
+	 * never lazily managed, we can just access the fpregs
+	 * directly.  PKRU is never managed lazily, so we can just
+	 * manipulate it directly.  Make sure it stays that way.
+	 */
+	WARN_ON_ONCE(!use_eager_fpu());
 
 	/* Set the bits we need in PKRU:  */
 	if (init_val & PKEY_DISABLE_ACCESS)
@@ -984,37 +905,12 @@ int arch_set_user_pkey_access(struct task_struct *tsk, int pkey,
 	/* Shift the bits in to the correct place in PKRU for pkey: */
 	new_pkru_bits <<= pkey_shift;
 
-	/* Locate old copy of the state in the xsave buffer: */
-	old_pkru_state = get_xsave_addr(xsave, XFEATURE_MASK_PKRU);
-
-	/*
-	 * When state is not in the buffer, it is in the init
-	 * state, set it manually.  Otherwise, copy out the old
-	 * state.
-	 */
-	if (!old_pkru_state)
-		new_pkru_state.pkru = 0;
-	else
-		new_pkru_state.pkru = old_pkru_state->pkru;
-
-	/* Mask off any old bits in place: */
-	new_pkru_state.pkru &= ~((PKRU_AD_BIT|PKRU_WD_BIT) << pkey_shift);
-
-	/* Set the newly-requested bits: */
-	new_pkru_state.pkru |= new_pkru_bits;
-
-	/*
-	 * We could theoretically live without zeroing pkru.pad.
-	 * The current XSAVE feature state definition says that
-	 * only bytes 0->3 are used.  But we do not want to
-	 * chance leaking kernel stack out to userspace in case a
-	 * memcpy() of the whole xsave buffer was done.
-	 *
-	 * They're in the same cacheline anyway.
-	 */
-	new_pkru_state.pad = 0;
+	/* Get old PKRU and mask off any old bits in place: */
+	old_pkru = read_pkru();
+	old_pkru &= ~((PKRU_AD_BIT|PKRU_WD_BIT) << pkey_shift);
 
-	fpu__xfeature_set_state(XFEATURE_MASK_PKRU, &new_pkru_state, sizeof(new_pkru_state));
+	/* Write old part along with new part: */
+	write_pkru(old_pkru | new_pkru_bits);
 
 	return 0;
 }
diff --git a/arch/x86/kernel/head32.c b/arch/x86/kernel/head32.c
index 2dda0bc4576e..f16c55bfc090 100644
--- a/arch/x86/kernel/head32.c
+++ b/arch/x86/kernel/head32.c
@@ -25,8 +25,6 @@ static void __init i386_default_early_setup(void)
 	/* Initialize 32bit specific setup functions */
 	x86_init.resources.reserve_resources = i386_reserve_resources;
 	x86_init.mpparse.setup_ioapic_ids = setup_ioapic_ids_from_mpc;
-
-	reserve_bios_regions();
 }
 
 asmlinkage __visible void __init i386_start_kernel(void)
diff --git a/arch/x86/kernel/head64.c b/arch/x86/kernel/head64.c
index 99d48e7d2974..54a2372f5dbb 100644
--- a/arch/x86/kernel/head64.c
+++ b/arch/x86/kernel/head64.c
@@ -183,7 +183,6 @@ void __init x86_64_start_reservations(char *real_mode_data)
 		copy_bootdata(__va(real_mode_data));
 
 	x86_early_init_platform_quirks();
-	reserve_bios_regions();
 
 	switch (boot_params.hdr.hardware_subarch) {
 	case X86_SUBARCH_INTEL_MID:
diff --git a/arch/x86/kernel/irq.c b/arch/x86/kernel/irq.c
index 61521dc19c10..9f669fdd2010 100644
--- a/arch/x86/kernel/irq.c
+++ b/arch/x86/kernel/irq.c
@@ -102,8 +102,7 @@ int arch_show_interrupts(struct seq_file *p, int prec)
 	seq_puts(p, "  Rescheduling interrupts\n");
 	seq_printf(p, "%*s: ", prec, "CAL");
 	for_each_online_cpu(j)
-		seq_printf(p, "%10u ", irq_stats(j)->irq_call_count -
-					irq_stats(j)->irq_tlb_count);
+		seq_printf(p, "%10u ", irq_stats(j)->irq_call_count);
 	seq_puts(p, "  Function call interrupts\n");
 	seq_printf(p, "%*s: ", prec, "TLB");
 	for_each_online_cpu(j)
diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index 991b77986d57..0fa60f5f5a16 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -936,8 +936,6 @@ void __init setup_arch(char **cmdline_p)
 
 	x86_init.oem.arch_setup();
 
-	kernel_randomize_memory();
-
 	iomem_resource.end = (1ULL << boot_cpu_data.x86_phys_bits) - 1;
 	setup_memory_map();
 	parse_setup_data();
@@ -1055,6 +1053,12 @@ void __init setup_arch(char **cmdline_p)
 
 	max_possible_pfn = max_pfn;
 
+	/*
+	 * Define random base addresses for memory sections after max_pfn is
+	 * defined and before each memory section base is used.
+	 */
+	kernel_randomize_memory();
+
 #ifdef CONFIG_X86_32
 	/* max_low_pfn get updated here */
 	find_low_pfn_range();
@@ -1097,6 +1101,8 @@ void __init setup_arch(char **cmdline_p)
 		efi_find_mirror();
 	}
 
+	reserve_bios_regions();
+
 	/*
 	 * The EFI specification says that boot service code won't be called
 	 * after ExitBootServices(). This is, in fact, a lie.
@@ -1125,7 +1131,15 @@ void __init setup_arch(char **cmdline_p)
 
 	early_trap_pf_init();
 
-	setup_real_mode();
+	/*
+	 * Update mmu_cr4_features (and, indirectly, trampoline_cr4_features)
+	 * with the current CR4 value.  This may not be necessary, but
+	 * auditing all the early-boot CR4 manipulation would be needed to
+	 * rule it out.
+	 */
+	if (boot_cpu_data.cpuid_level >= 0)
+		/* A CPU has %cr4 if and only if it has CPUID. */
+		mmu_cr4_features = __read_cr4();
 
 	memblock_set_current_limit(get_max_mapped());
 
@@ -1174,13 +1188,6 @@ void __init setup_arch(char **cmdline_p)
 
 	kasan_init();
 
-	if (boot_cpu_data.cpuid_level >= 0) {
-		/* A CPU has %cr4 if and only if it has CPUID */
-		mmu_cr4_features = __read_cr4();
-		if (trampoline_cr4_features)
-			*trampoline_cr4_features = mmu_cr4_features;
-	}
-
 #ifdef CONFIG_X86_32
 	/* sync back kernel address range */
 	clone_pgd_range(initial_page_table + KERNEL_PGD_BOUNDARY,
diff --git a/arch/x86/lib/kaslr.c b/arch/x86/lib/kaslr.c
index f7dfeda83e5c..121f59c6ee54 100644
--- a/arch/x86/lib/kaslr.c
+++ b/arch/x86/lib/kaslr.c
@@ -19,7 +19,7 @@
 #include <asm/cpufeature.h>
 #include <asm/setup.h>
 
-#define debug_putstr(v) early_printk(v)
+#define debug_putstr(v) early_printk("%s", v)
 #define has_cpuflag(f) boot_cpu_has(f)
 #define get_boot_seed() kaslr_offset()
 #endif
diff --git a/arch/x86/mm/init.c b/arch/x86/mm/init.c
index 620928903be3..d28a2d741f9e 100644
--- a/arch/x86/mm/init.c
+++ b/arch/x86/mm/init.c
@@ -122,8 +122,18 @@ __ref void *alloc_low_pages(unsigned int num)
 	return __va(pfn << PAGE_SHIFT);
 }
 
-/* need 3 4k for initial PMD_SIZE,  3 4k for 0-ISA_END_ADDRESS */
-#define INIT_PGT_BUF_SIZE	(6 * PAGE_SIZE)
+/*
+ * By default need 3 4k for initial PMD_SIZE,  3 4k for 0-ISA_END_ADDRESS.
+ * With KASLR memory randomization, depending on the machine e820 memory
+ * and the PUD alignment. We may need twice more pages when KASLR memory
+ * randomization is enabled.
+ */
+#ifndef CONFIG_RANDOMIZE_MEMORY
+#define INIT_PGD_PAGE_COUNT      6
+#else
+#define INIT_PGD_PAGE_COUNT      12
+#endif
+#define INIT_PGT_BUF_SIZE	(INIT_PGD_PAGE_COUNT * PAGE_SIZE)
 RESERVE_BRK(early_pgt_alloc, INIT_PGT_BUF_SIZE);
 void  __init early_alloc_pgt_buf(void)
 {
diff --git a/arch/x86/mm/kaslr.c b/arch/x86/mm/kaslr.c
index 26dccd6c0df1..ec8654f117d8 100644
--- a/arch/x86/mm/kaslr.c
+++ b/arch/x86/mm/kaslr.c
@@ -97,7 +97,7 @@ void __init kernel_randomize_memory(void)
 	 * add padding if needed (especially for memory hotplug support).
 	 */
 	BUG_ON(kaslr_regions[0].base != &page_offset_base);
-	memory_tb = ((max_pfn << PAGE_SHIFT) >> TB_SHIFT) +
+	memory_tb = DIV_ROUND_UP(max_pfn << PAGE_SHIFT, 1UL << TB_SHIFT) +
 		CONFIG_RANDOMIZE_MEMORY_PHYSICAL_PADDING;
 
 	/* Adapt phyiscal memory region size based on available memory */
diff --git a/arch/x86/platform/efi/quirks.c b/arch/x86/platform/efi/quirks.c
index 4480c06cade7..89d1146f5a6f 100644
--- a/arch/x86/platform/efi/quirks.c
+++ b/arch/x86/platform/efi/quirks.c
@@ -254,6 +254,7 @@ void __init efi_free_boot_services(void)
 	for_each_efi_memory_desc(md) {
 		unsigned long long start = md->phys_addr;
 		unsigned long long size = md->num_pages << EFI_PAGE_SHIFT;
+		size_t rm_size;
 
 		if (md->type != EFI_BOOT_SERVICES_CODE &&
 		    md->type != EFI_BOOT_SERVICES_DATA)
@@ -263,6 +264,26 @@ void __init efi_free_boot_services(void)
 		if (md->attribute & EFI_MEMORY_RUNTIME)
 			continue;
 
+		/*
+		 * Nasty quirk: if all sub-1MB memory is used for boot
+		 * services, we can get here without having allocated the
+		 * real mode trampoline.  It's too late to hand boot services
+		 * memory back to the memblock allocator, so instead
+		 * try to manually allocate the trampoline if needed.
+		 *
+		 * I've seen this on a Dell XPS 13 9350 with firmware
+		 * 1.4.4 with SGX enabled booting Linux via Fedora 24's
+		 * grub2-efi on a hard disk.  (And no, I don't know why
+		 * this happened, but Linux should still try to boot rather
+		 * panicing early.)
+		 */
+		rm_size = real_mode_size_needed();
+		if (rm_size && (start + rm_size) < (1<<20) && size >= rm_size) {
+			set_real_mode_mem(start, rm_size);
+			start += rm_size;
+			size -= rm_size;
+		}
+
 		free_bootmem_late(start, size);
 	}
 
diff --git a/arch/x86/platform/uv/bios_uv.c b/arch/x86/platform/uv/bios_uv.c
index 66b2166ea4a1..4e9fd1378aec 100644
--- a/arch/x86/platform/uv/bios_uv.c
+++ b/arch/x86/platform/uv/bios_uv.c
@@ -199,12 +199,14 @@ void uv_bios_init(void)
 		return;
 	}
 
+	/* Starting with UV4 the UV systab size is variable */
 	if (uv_systab->revision >= UV_SYSTAB_VERSION_UV4) {
+		int size = uv_systab->size;
+
 		iounmap(uv_systab);
-		uv_systab = ioremap(efi.uv_systab, uv_systab->size);
+		uv_systab = ioremap(efi.uv_systab, size);
 		if (!uv_systab) {
-			pr_err("UV: UVsystab: ioremap(%d) failed!\n",
-				uv_systab->size);
+			pr_err("UV: UVsystab: ioremap(%d) failed!\n", size);
 			return;
 		}
 	}
diff --git a/arch/x86/realmode/init.c b/arch/x86/realmode/init.c
index 705e3fffb4a1..5db706f14111 100644
--- a/arch/x86/realmode/init.c
+++ b/arch/x86/realmode/init.c
@@ -1,9 +1,11 @@
 #include <linux/io.h>
+#include <linux/slab.h>
 #include <linux/memblock.h>
 
 #include <asm/cacheflush.h>
 #include <asm/pgtable.h>
 #include <asm/realmode.h>
+#include <asm/tlbflush.h>
 
 struct real_mode_header *real_mode_header;
 u32 *trampoline_cr4_features;
@@ -11,25 +13,37 @@ u32 *trampoline_cr4_features;
 /* Hold the pgd entry used on booting additional CPUs */
 pgd_t trampoline_pgd_entry;
 
+void __init set_real_mode_mem(phys_addr_t mem, size_t size)
+{
+	void *base = __va(mem);
+
+	real_mode_header = (struct real_mode_header *) base;
+	printk(KERN_DEBUG "Base memory trampoline at [%p] %llx size %zu\n",
+	       base, (unsigned long long)mem, size);
+}
+
 void __init reserve_real_mode(void)
 {
 	phys_addr_t mem;
-	unsigned char *base;
-	size_t size = PAGE_ALIGN(real_mode_blob_end - real_mode_blob);
+	size_t size = real_mode_size_needed();
+
+	if (!size)
+		return;
+
+	WARN_ON(slab_is_available());
 
 	/* Has to be under 1M so we can execute real-mode AP code. */
 	mem = memblock_find_in_range(0, 1<<20, size, PAGE_SIZE);
-	if (!mem)
-		panic("Cannot allocate trampoline\n");
+	if (!mem) {
+		pr_info("No sub-1M memory is available for the trampoline\n");
+		return;
+	}
 
-	base = __va(mem);
 	memblock_reserve(mem, size);
-	real_mode_header = (struct real_mode_header *) base;
-	printk(KERN_DEBUG "Base memory trampoline at [%p] %llx size %zu\n",
-	       base, (unsigned long long)mem, size);
+	set_real_mode_mem(mem, size);
 }
 
-void __init setup_real_mode(void)
+static void __init setup_real_mode(void)
 {
 	u16 real_mode_seg;
 	const u32 *rel;
@@ -84,7 +98,7 @@ void __init setup_real_mode(void)
 
 	trampoline_header->start = (u64) secondary_startup_64;
 	trampoline_cr4_features = &trampoline_header->cr4;
-	*trampoline_cr4_features = __read_cr4();
+	*trampoline_cr4_features = mmu_cr4_features;
 
 	trampoline_pgd = (u64 *) __va(real_mode_header->trampoline_pgd);
 	trampoline_pgd[0] = trampoline_pgd_entry.pgd;
@@ -100,7 +114,7 @@ void __init setup_real_mode(void)
  * need to mark it executable at do_pre_smp_initcalls() at least,
  * thus run it as a early_initcall().
  */
-static int __init set_real_mode_permissions(void)
+static void __init set_real_mode_permissions(void)
 {
 	unsigned char *base = (unsigned char *) real_mode_header;
 	size_t size = PAGE_ALIGN(real_mode_blob_end - real_mode_blob);
@@ -119,7 +133,16 @@ static int __init set_real_mode_permissions(void)
 	set_memory_nx((unsigned long) base, size >> PAGE_SHIFT);
 	set_memory_ro((unsigned long) base, ro_size >> PAGE_SHIFT);
 	set_memory_x((unsigned long) text_start, text_size >> PAGE_SHIFT);
+}
+
+static int __init init_real_mode(void)
+{
+	if (!real_mode_header)
+		panic("Real mode trampoline was not allocated");
+
+	setup_real_mode();
+	set_real_mode_permissions();
 
 	return 0;
 }
-early_initcall(set_real_mode_permissions);
+early_initcall(init_real_mode);

             reply index

Thread overview: 505+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-08-12 19:46 Ingo Molnar [this message]
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2019-06-29  9:14 Ingo Molnar
2019-06-29 11:45 ` pr-tracker-bot
2019-06-02 17:44 Ingo Molnar
2019-06-02 18:15 ` pr-tracker-bot
2019-05-16 16:26 Ingo Molnar
2019-05-16 18:20 ` pr-tracker-bot
2019-04-27 14:42 Ingo Molnar
2019-04-27 18:45 ` pr-tracker-bot
2019-04-20  7:38 Ingo Molnar
2019-04-20 19:25 ` pr-tracker-bot
2019-04-12 13:10 Ingo Molnar
2019-04-13  4:05 ` pr-tracker-bot
2019-02-17 10:19 Ingo Molnar
2019-02-17 16:50 ` pr-tracker-bot
2019-02-10  9:13 Ingo Molnar
2019-02-10 18:30 ` pr-tracker-bot
2019-01-11  7:14 Ingo Molnar
2019-01-11 18:00 ` pr-tracker-bot
2018-12-21 12:25 Ingo Molnar
2018-12-21 19:30 ` pr-tracker-bot
2018-12-09 22:06 Ingo Molnar
2018-12-09 23:45 ` pr-tracker-bot
2018-11-30  6:29 Ingo Molnar
2018-11-30 21:00 ` pr-tracker-bot
2018-11-03 23:09 Ingo Molnar
2018-11-04  1:27 ` Linus Torvalds
2018-10-20  8:54 Ingo Molnar
2018-10-20 13:28 ` Greg Kroah-Hartman
2018-10-11  9:14 Ingo Molnar
2018-10-11 12:32 ` Greg Kroah-Hartman
2018-10-05  9:53 Ingo Molnar
2018-10-05 23:06 ` Greg Kroah-Hartman
2018-09-15 13:24 Ingo Molnar
2018-07-30 17:59 Ingo Molnar
2018-06-30  8:49 Ingo Molnar
2018-06-30 19:01 ` Linus Torvalds
2018-07-02 18:47   ` Andy Lutomirski
2018-07-02 18:53     ` Linus Torvalds
2018-07-03  7:56       ` Ingo Molnar
2018-03-31 10:36 Ingo Molnar
2018-02-15  0:45 Ingo Molnar
2018-01-17 15:41 Ingo Molnar
2018-01-17 20:35 ` Linus Torvalds
2018-01-18  0:24   ` Ingo Molnar
2018-01-18  0:29     ` Andrew Morton
2018-01-12 13:56 Ingo Molnar
2017-12-15 15:43 Ingo Molnar
2017-12-15 15:50 ` Andy Lutomirski
2017-12-15 16:07   ` Ingo Molnar
2017-12-17  3:25     ` Andy Lutomirski
2017-12-17  8:32       ` Ingo Molnar
2017-12-17 11:41       ` Thomas Gleixner
2017-12-17 15:15         ` Borislav Petkov
2017-12-06 22:36 Ingo Molnar
2017-11-26 12:48 Ingo Molnar
2017-11-05 14:46 Ingo Molnar
2017-10-27 19:24 Ingo Molnar
2017-10-14 16:16 Ingo Molnar
2017-09-24 11:28 Ingo Molnar
2017-09-13 17:54 Ingo Molnar
2017-09-12 15:38 Ingo Molnar
2017-08-26  7:26 Ingo Molnar
2017-07-21 10:26 Ingo Molnar
2017-06-10  9:03 Ingo Molnar
2017-06-02  6:54 Ingo Molnar
2017-05-12  7:39 Ingo Molnar
2017-03-07 20:40 Ingo Molnar
2017-02-28  8:08 Ingo Molnar
2017-02-11 18:18 Ingo Molnar
2017-02-02 21:04 Ingo Molnar
2017-01-15 10:06 Ingo Molnar
2016-12-23 22:57 Ingo Molnar
2016-12-07 18:53 Ingo Molnar
2016-11-22 15:41 Ingo Molnar
2016-11-14  8:03 Ingo Molnar
2016-10-28  8:41 Ingo Molnar
2016-10-22 11:16 Ingo Molnar
2016-10-18 11:22 Ingo Molnar
2016-09-13 18:20 Ingo Molnar
2016-08-18 20:49 Ingo Molnar
2016-08-06  6:13 Ingo Molnar
2016-07-13 12:54 Ingo Molnar
2016-07-08 14:00 Ingo Molnar
2016-06-10 14:43 Ingo Molnar
2016-05-25 22:00 Ingo Molnar
2016-05-10 12:01 Ingo Molnar
2016-05-06 19:20 Ingo Molnar
2016-04-28 18:00 Ingo Molnar
2016-04-23 11:38 Ingo Molnar
2016-04-14 14:13 Ingo Molnar
2016-03-24  8:01 Ingo Molnar
2016-03-12 19:06 Ingo Molnar
2016-02-20 11:30 Ingo Molnar
2016-01-14 10:16 Ingo Molnar
2016-01-08 12:57 Ingo Molnar
2015-10-23 11:45 Ingo Molnar
2015-10-03 10:24 Ingo Molnar
2015-10-03 10:57 ` Ingo Molnar
2015-10-03 19:40   ` Thomas Gleixner
2015-09-17  8:28 Ingo Molnar
2015-08-22 12:21 Ingo Molnar
2015-08-14  7:15 Ingo Molnar
2015-08-14 18:25 ` Linus Torvalds
2015-08-14 18:46   ` Andy Lutomirski
2015-08-14 18:57     ` Linus Torvalds
2015-08-14 19:06       ` Linus Torvalds
2015-08-14 19:18         ` Andy Lutomirski
2015-08-14 19:37           ` Linus Torvalds
2015-08-14 19:14       ` Andy Lutomirski
2015-08-17  8:01   ` Ingo Molnar
2015-08-17 10:59     ` Denys Vlasenko
2015-08-17 16:57       ` Linus Torvalds
2015-08-18  7:57         ` Ingo Molnar
2015-08-17 16:47     ` Linus Torvalds
2015-08-17 16:58       ` H. Peter Anvin
2015-08-17 17:17         ` Linus Torvalds
2015-08-17 22:17           ` H. Peter Anvin
2015-08-19  5:59             ` Ingo Molnar
2015-08-19  6:15               ` Ingo Molnar
2015-08-19  6:50               ` Ingo Molnar
2015-08-19 10:00                 ` H. Peter Anvin
2015-08-19 22:33                   ` Linus Torvalds
2015-08-20  6:54                     ` H. Peter Anvin
2015-08-19 21:53                 ` H. Peter Anvin
2015-08-21 10:17                 ` Denys Vlasenko
2015-08-17 23:47           ` Bryan O'Donoghue
2015-08-17 21:03     ` H. Peter Anvin
2015-08-17 23:59     ` Andy Lutomirski
2015-08-18  0:01       ` H. Peter Anvin
2015-08-18  0:06       ` H. Peter Anvin
2015-08-18  0:19         ` Andy Lutomirski
2015-08-18  5:56           ` H. Peter Anvin
2015-08-18  5:59           ` H. Peter Anvin
2015-08-18  7:55       ` Ingo Molnar
2015-08-01  8:44 Ingo Molnar
2015-07-18  3:18 Ingo Molnar
2015-07-20  7:20 ` Heiko Carstens
2015-07-04 11:29 Ingo Molnar
2015-06-05  8:40 Ingo Molnar
2015-05-27 12:54 Ingo Molnar
2015-05-06 12:58 Ingo Molnar
2015-05-06 18:14 ` Linus Torvalds
2015-04-18 15:26 Ingo Molnar
2015-04-03 13:16 Ingo Molnar
2015-03-17 16:54 Ingo Molnar
2015-03-05 17:02 Ingo Molnar
2015-03-01 17:14 Ingo Molnar
2015-02-20 13:47 Ingo Molnar
2015-01-11  8:51 Ingo Molnar
2014-12-14 19:46 Ingo Molnar
2014-11-20  8:02 Ingo Molnar
2014-11-16  9:07 Ingo Molnar
2014-11-17  7:42 ` Markus Trippelsdorf
2014-11-17  8:27   ` Markus Trippelsdorf
2014-11-17 13:58     ` Ingo Molnar
2014-11-17 21:02       ` Kees Cook
2014-11-17 21:05         ` Markus Trippelsdorf
2014-11-17 21:21         ` Markus Trippelsdorf
2014-11-17 23:09           ` Kees Cook
2014-10-31 11:26 Ingo Molnar
2014-09-27  6:02 Ingo Molnar
2014-09-19 10:40 Ingo Molnar
2014-09-23  5:22 ` Linus Torvalds
2014-09-23  5:35   ` Ingo Molnar
2014-09-23  5:37     ` Ingo Molnar
2014-09-23  5:44       ` H. Peter Anvin
2014-09-23  5:59         ` Linus Torvalds
2014-09-23  6:07           ` Linus Torvalds
2014-09-23  6:56           ` Matt Fleming
     [not found]             ` <CA+55aFz+2tf7zEGjVmkVuncZssiDdVRKJ=OUfgnDFf2TYN-KvA@mail.gmail.com>
2014-09-23  7:35               ` Matt Fleming
2014-09-23 12:18             ` Josh Boyer
2014-09-23  5:58       ` Ingo Molnar
2014-09-23  7:20         ` Matt Fleming
2014-09-23  8:18           ` Ard Biesheuvel
2014-09-23 13:18             ` Matt Fleming
2014-09-23 13:59               ` Leif Lindholm
2014-09-23 14:25               ` Maarten Lankhorst
2014-09-23 14:37                 ` Matt Fleming
2014-09-23 16:01                   ` Linus Torvalds
2014-09-24  7:26                   ` Ingo Molnar
2014-09-24 11:42                     ` Matt Fleming
2014-09-24 13:08                       ` Ingo Molnar
2014-09-24 13:18                         ` Matt Fleming
2014-09-24 13:18                           ` Ingo Molnar
2014-09-23 16:05               ` Linus Torvalds
2014-09-23 16:11                 ` Matt Fleming
2014-09-23 16:17                   ` Josh Boyer
2014-09-23 17:21                     ` Josh Boyer
2014-09-23 20:43                       ` Matt Fleming
2014-08-24 20:28 Ingo Molnar
2014-04-16 13:21 Ingo Molnar
2013-11-13 20:47 Ingo Molnar
2013-10-18 19:11 Ingo Molnar
2013-10-12 17:15 Ingo Molnar
2013-10-12 18:05 ` Linus Torvalds
2013-10-12 18:18   ` H. Peter Anvin
2013-10-12 18:49     ` Ingo Molnar
2013-10-15  7:15       ` Ingo Molnar
2013-10-15 10:57         ` Borislav Petkov
2013-10-12 19:28   ` Matthew Garrett
2013-10-12 19:41     ` Linus Torvalds
2013-10-12 20:35       ` H. Peter Anvin
2013-10-04  7:57 Ingo Molnar
2013-09-25 18:16 Ingo Molnar
2013-09-18 16:24 Ingo Molnar
2013-09-05 11:03 Ingo Molnar
2013-08-19 11:23 Ingo Molnar
2013-04-14 15:55 Ingo Molnar
2013-02-26 12:10 Ingo Molnar
2013-02-04 18:31 Ingo Molnar
2012-10-26 14:52 Ingo Molnar
2012-09-21 19:15 Ingo Molnar
2012-08-23 10:54 Ingo Molnar
2012-08-20  9:21 Ingo Molnar
2012-08-21  8:00 ` Ingo Molnar
2012-08-03 16:51 Ingo Molnar
2012-06-29 15:33 Ingo Molnar
2012-06-15 18:53 Ingo Molnar
2012-06-08 14:46 Ingo Molnar
2012-05-17  8:24 Ingo Molnar
2012-04-27  6:57 Ingo Molnar
2012-04-03 22:45 Ingo Molnar
2012-04-03 23:47 ` Konrad Rzeszutek Wilk
2012-04-04  6:56   ` Ingo Molnar
2012-04-04 13:03     ` Konrad Rzeszutek Wilk
2012-02-27 10:32 Ingo Molnar
2012-02-02 10:10 Ingo Molnar
2012-01-26 20:15 Ingo Molnar
2012-01-15 13:40 Ingo Molnar
2011-12-13 23:00 Ingo Molnar
2011-12-05 19:18 Ingo Molnar
2011-07-07 18:24 Ingo Molnar
2011-06-19  9:09 Ingo Molnar
2011-06-13  9:49 Ingo Molnar
2011-06-07 18:44 Ingo Molnar
2011-05-31 16:30 Ingo Molnar
2011-05-31 16:35 ` Joe Perches
2011-05-31 18:16   ` Borislav Petkov
2011-05-31 19:04     ` Ingo Molnar
2011-05-31 19:51       ` Borislav Petkov
2011-05-31 21:35     ` Linus Torvalds
2011-06-01  6:00       ` Ingo Molnar
2011-06-01  6:08         ` Joe Perches
2011-06-01  6:18         ` Borislav Petkov
2011-06-01  6:24         ` Ingo Molnar
2011-05-23 10:19 Ingo Molnar
2011-05-17 21:43 Ingo Molnar
2011-05-03 11:44 Ingo Molnar
2011-04-29 18:02 Ingo Molnar
2011-04-21 16:06 Ingo Molnar
2011-04-16 10:11 Ingo Molnar
2011-04-07 17:36 Ingo Molnar
2011-04-02 10:52 Ingo Molnar
2011-03-25 13:35 Ingo Molnar
2011-03-22 10:20 Ingo Molnar
2011-03-18 13:54 Ingo Molnar
2011-03-16 16:21 Ingo Molnar
2011-03-10  8:10 Ingo Molnar
2011-02-28 17:37 Ingo Molnar
2011-02-25 19:58 Ingo Molnar
2011-02-15 16:36 Ingo Molnar
2011-02-06 11:18 Ingo Molnar
2011-01-27 17:28 Ingo Molnar
2011-01-24 13:01 Ingo Molnar
2011-01-19 19:01 Ingo Molnar
2011-01-18 19:05 Ingo Molnar
2011-01-15 15:17 Ingo Molnar
2010-12-19 15:30 Ingo Molnar
2010-11-26 13:27 Ingo Molnar
2010-11-11 11:03 Ingo Molnar
2010-10-27 16:05 Ingo Molnar
2010-10-27 16:07 ` Ingo Molnar
2010-09-26  8:50 Ingo Molnar
2010-09-08 13:08 Ingo Molnar
2010-06-02 11:49 Ingo Molnar
2010-03-30 12:30 Ingo Molnar
2010-03-26 15:43 Ingo Molnar
2010-03-29 15:47 ` Linus Torvalds
2010-03-29 16:47   ` Ingo Molnar
2010-03-13 16:39 Ingo Molnar
2010-01-31 17:19 Ingo Molnar
2010-01-16 17:03 Ingo Molnar
2010-01-16 20:34 ` Linus Torvalds
2010-01-16 20:53   ` Cyrill Gorcunov
2010-01-16 21:16     ` Ian Campbell
2010-01-16 22:12       ` Cyrill Gorcunov
2010-01-17  0:50       ` H. Peter Anvin
2010-01-16 21:06   ` H. Peter Anvin
2010-01-16 21:09     ` H. Peter Anvin
2010-01-17  0:18   ` Brian Gerst
2010-01-17  6:00     ` Ian Campbell
2009-12-31 12:03 Ingo Molnar
2009-12-31 12:56 ` Borislav Petkov
2009-12-18 18:56 Ingo Molnar
2009-12-15 20:36 Ingo Molnar
2009-12-14 19:06 Ingo Molnar
2009-12-10 19:42 Ingo Molnar
2009-11-10 17:40 Ingo Molnar
2009-11-04 15:48 Ingo Molnar
2009-11-01 15:24 Ingo Molnar
2009-10-23 14:40 Ingo Molnar
2009-10-15 10:55 Ingo Molnar
2009-10-13 18:15 Ingo Molnar
2009-10-08 18:57 Ingo Molnar
2009-10-02 12:36 Ingo Molnar
2009-09-26 12:21 Ingo Molnar
2009-09-21 12:59 Ingo Molnar
2009-08-28 10:40 Ingo Molnar
2009-08-25 18:00 Ingo Molnar
2009-08-17 21:37 Ingo Molnar
2009-08-13 18:49 Ingo Molnar
2009-08-09 16:01 Ingo Molnar
2009-08-04 18:55 Ingo Molnar
2009-06-26 19:07 Ingo Molnar
2009-06-12 10:47 Ingo Molnar
2009-05-18 14:38 Ingo Molnar
2009-05-08 18:46 Ingo Molnar
2009-05-05  9:26 Ingo Molnar
2009-04-26 17:18 Ingo Molnar
2009-04-17  1:32 Ingo Molnar
2009-04-13 17:36 Ingo Molnar
2009-04-09 15:47 Ingo Molnar
2009-04-03 22:46 Ingo Molnar
2009-03-06 18:36 [git pull] " Ingo Molnar
2009-03-03 20:59 Ingo Molnar
2009-03-02  8:47 Ingo Molnar
2009-02-27 16:28 Ingo Molnar
2009-02-21 17:08 Ingo Molnar
2009-02-20 14:18 Ingo Molnar
2009-02-19 17:10 Ingo Molnar
2009-02-21  2:13 ` Linus Torvalds
2009-02-21  6:56   ` H. Peter Anvin
2009-02-21  8:32   ` Ingo Molnar
2009-02-21  8:39     ` Ingo Molnar
2009-02-21  8:42       ` H. Peter Anvin
2009-02-21  9:18     ` Sam Ravnborg
2009-02-21  9:46       ` Ingo Molnar
2009-02-17 16:36 Ingo Molnar
2009-02-11 14:31 Ingo Molnar
2009-02-04 19:22 Ingo Molnar
2009-01-30 23:00 Ingo Molnar
2009-01-26 17:17 Ingo Molnar
2009-01-26 19:05 ` Andrew Morton
2009-01-26 19:20   ` Ingo Molnar
2009-01-26 19:40     ` Andrew Morton
2009-01-26 19:59       ` Ingo Molnar
2009-01-26 20:14         ` Andrew Morton
2009-01-26 20:28           ` Ingo Molnar
2009-01-19 23:23 Ingo Molnar
2009-01-12 18:28 Ingo Molnar
2009-01-11 14:39 Ingo Molnar
2009-01-11 16:45 ` Torsten Kaiser
2009-01-11 18:18   ` Ingo Molnar
2009-01-12 18:17   ` Pallipadi, Venkatesh
2009-01-12 19:01     ` Torsten Kaiser
2009-01-12 19:19       ` Pallipadi, Venkatesh
2009-01-12 19:29         ` Pallipadi, Venkatesh
2009-01-12 19:47           ` Linus Torvalds
2009-01-12 19:54             ` Pallipadi, Venkatesh
2009-01-12 20:38               ` Ingo Molnar
2009-01-12 20:52             ` Ingo Molnar
2009-01-12 21:03               ` Harvey Harrison
2009-01-12 21:12                 ` Ingo Molnar
2009-01-12 21:55               ` Torsten Kaiser
2009-01-12 22:03                 ` Ingo Molnar
2009-01-12 20:05           ` Torsten Kaiser
2009-01-12 20:40             ` Ingo Molnar
2009-01-12 21:50               ` Torsten Kaiser
2009-01-12 22:13                 ` Ingo Molnar
2009-01-13 19:20                   ` Torsten Kaiser
2009-01-12 22:16                 ` Ingo Molnar
2009-01-02 21:48 Ingo Molnar
2008-12-20 13:43 Ingo Molnar
2008-12-20 19:16 ` Linus Torvalds
2008-12-20 19:31   ` Ingo Molnar
2008-12-20 22:11     ` Linus Torvalds
2008-12-20 20:58   ` Joerg Roedel
2008-12-08 18:26 Ingo Molnar
2008-12-04 19:46 Ingo Molnar
2008-11-29 19:31 Ingo Molnar
2008-11-20 11:22 Ingo Molnar
2008-11-18 20:35 Ingo Molnar
2008-11-06 21:29 Ingo Molnar
2008-11-01 17:06 Ingo Molnar
2008-10-30 23:34 Ingo Molnar
2008-10-28 10:49 Ingo Molnar
2008-10-23 19:33 Ingo Molnar
2008-10-17 17:27 Ingo Molnar
2008-10-15 16:32 Ingo Molnar
2008-10-01 18:05 Ingo Molnar
2008-09-27 21:02 Ingo Molnar
2008-09-23 19:34 Ingo Molnar
2008-09-17  9:58 Ingo Molnar
2008-09-09 19:03 H. Peter Anvin
2008-09-08 19:32 H. Peter Anvin
2008-09-08 20:34 ` David Sanders
2008-09-08 21:20   ` H. Peter Anvin
2008-09-08 21:22     ` H. Peter Anvin
2008-09-08 21:43   ` H. Peter Anvin
2008-09-08 22:16     ` David Sanders
2008-09-09  6:05       ` Ingo Molnar
2008-09-09  7:19         ` Ingo Molnar
2008-09-09 19:18 ` David Sanders
2008-09-09 19:56   ` Linus Torvalds
2008-09-09 20:37     ` David Sanders
2008-09-09 20:45       ` Linus Torvalds
2008-09-09 20:46         ` Linus Torvalds
2008-09-09 20:49           ` Ingo Molnar
2008-09-09 20:53           ` David Sanders
2008-09-08 17:52 H. Peter Anvin
2008-09-08 18:04 ` Linus Torvalds
2008-09-08 18:17   ` Linus Torvalds
2008-09-08 22:42     ` Andi Kleen
2008-09-08 18:22   ` H. Peter Anvin
2008-09-08 18:46     ` Arjan van de Ven
2008-09-08 18:51       ` H. Peter Anvin
2008-09-08 19:02         ` Ingo Molnar
2008-09-08 19:30           ` Linus Torvalds
2008-09-08 19:55             ` Arjan van de Ven
2008-09-08 20:14               ` H. Peter Anvin
2008-09-08 23:17             ` Krzysztof Halasa
2008-09-08 18:42               ` Arjan van de Ven
2008-09-09 10:24               ` Andi Kleen
2008-09-09 14:54                 ` Linus Torvalds
2008-09-09 17:01                 ` H. Peter Anvin
2008-09-09 17:17                 ` Mark Lord
2008-09-09 17:19                   ` H. Peter Anvin
2008-09-09 17:48                   ` Mark Lord
2008-09-09 18:40                   ` Andi Kleen
2008-09-09 16:05             ` Adrian Bunk
2008-09-09 16:15               ` Linus Torvalds
2008-09-08 20:25           ` Valdis.Kletnieks
2008-09-09  7:27             ` Ingo Molnar
2008-09-08 22:43       ` Andi Kleen
2008-09-09 16:57   ` Adrian Bunk
2008-09-09 17:03     ` H. Peter Anvin
2008-09-09 17:43       ` Adrian Bunk
2008-09-09 18:12         ` H. Peter Anvin
2008-09-06 19:01 Ingo Molnar
2008-09-05 18:51 Ingo Molnar
2008-08-28 11:41 Ingo Molnar
2008-08-25 17:50 Ingo Molnar
2008-08-22 12:23 Ingo Molnar
2008-08-18 18:36 Ingo Molnar
2008-07-31 21:42 Ingo Molnar
2008-07-29 15:53 Ingo Molnar
2008-07-26 19:15 Ingo Molnar
2008-07-24 15:12 Ingo Molnar
2008-07-24 19:36 ` Linus Torvalds
2008-07-24 20:38   ` H. Peter Anvin
2008-07-22 14:03 Ingo Molnar
2008-07-22 14:35 ` Johannes Weiner
2008-07-22 15:08   ` Jeremy Fitzhardinge
2008-07-22 15:23     ` Johannes Weiner
2008-07-17 17:32 Ingo Molnar
2008-07-15 15:01 Ingo Molnar
2008-07-15 15:13 ` Ingo Molnar
2008-07-15 16:03   ` Linus Torvalds
2008-07-05 19:29 Ingo Molnar
2008-07-04 16:48 Ingo Molnar
2008-06-30 15:30 Ingo Molnar
2008-06-19 15:13 Ingo Molnar
2008-06-19 21:29 ` Simon Holm Thøgersen
2008-06-19 23:34   ` Suresh Siddha
2008-06-12 19:51 Ingo Molnar
2008-05-13 19:27 Ingo Molnar
2008-05-13 19:40 ` Adrian Bunk
2008-05-13 20:02   ` Adrian Bunk
2008-05-13 20:38   ` Adrian Bunk
2008-05-13 21:01   ` H. Peter Anvin
2008-05-13 20:20 ` Linus Torvalds
2008-05-04 19:35 Ingo Molnar
2008-05-05 15:12 ` Adrian Bunk
2008-05-05 15:29   ` Andres Salomon
2008-05-06 12:49     ` Thomas Gleixner
2008-05-07 15:41       ` Andres Salomon
2008-05-07 19:08         ` Thomas Gleixner
2008-05-07 19:48           ` Andres Salomon
2008-05-07 20:07             ` Andrew Morton
2008-05-09 10:28         ` Ingo Molnar
2008-04-30 21:24 Ingo Molnar
2008-04-24 21:37 Ingo Molnar
2008-04-07 19:38 Ingo Molnar
2008-03-27 20:03 Ingo Molnar
2008-03-27 20:31 ` Linus Torvalds
2008-03-27 20:48   ` Harvey Harrison
2008-03-27 20:55     ` Ingo Molnar
2008-03-27 21:01       ` Ingo Molnar
2008-03-27 21:08         ` Harvey Harrison
2008-03-27 20:50   ` Ingo Molnar
2008-03-27 21:24     ` Ingo Molnar
2008-03-26 21:41 Ingo Molnar
2008-03-21 16:20 Ingo Molnar
2008-03-11 16:12 Ingo Molnar
2008-03-07 15:50 Ingo Molnar
2008-03-04 16:59 Ingo Molnar
2008-03-03 13:18 Ingo Molnar
2008-01-01 17:21 Ingo Molnar
2007-12-21  0:46 Ingo Molnar
2007-12-19 23:04 Ingo Molnar
2007-12-04 16:41 Ingo Molnar
2007-12-02 19:12 Ingo Molnar
2007-12-03 16:23 ` Linus Torvalds
2007-12-03 16:38   ` Ingo Molnar

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