---

yaml --- r: 104463 b: refs/heads/master c: acee709 h: refs/heads/master i: 104461: eedb7d2 104459: 0ac0bff 104455: 58efd34 104447: 36ecbd6 v: v3
git-mirror · Jul 21, 2008 · 5a8c9e1 · 5a8c9e1
1 parent 22671dd
commit 5a8c9e1
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Showing 110 changed files with 1,876 additions and 1,130 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: e66d90fb4abd0a27ee96f57a32fb561221c4d6ae
+refs/heads/master: acee709cab689ec7703770e8b8cb5cc3a4abcb31
diff --git a/trunk/Documentation/kernel-parameters.txt b/trunk/Documentation/kernel-parameters.txt
@@ -1206,7 +1206,7 @@ and is between 256 and 4096 characters. It is defined in the file
 			         or
 			         memmap=0x10000$0x18690000
 
-	memtest=	[KNL,X86_64] Enable memtest
+	memtest=	[KNL,X86] Enable memtest
 			Format: <integer>
 			range: 0,4 : pattern number
 			default : 0 <disable>
@@ -2158,6 +2158,10 @@ and is between 256 and 4096 characters. It is defined in the file
 			Note that genuine overcurrent events won't be
 			reported either.
 
+	unknown_nmi_panic
+			[X86-32,X86-64]
+			Set unknown_nmi_panic=1 early on boot.
+
 	usbcore.autosuspend=
 			[USB] The autosuspend time delay (in seconds) used
 			for newly-detected USB devices (default 2).  This

diff --git a/trunk/arch/x86/Kconfig b/trunk/arch/x86/Kconfig
@@ -447,7 +447,6 @@ config PARAVIRT_DEBUG
 
 config MEMTEST
 	bool "Memtest"
-	depends on X86_64
 	help
 	  This option adds a kernel parameter 'memtest', which allows memtest
 	  to be set.

diff --git a/trunk/arch/x86/Kconfig.cpu b/trunk/arch/x86/Kconfig.cpu
@@ -362,10 +362,6 @@ config X86_ALIGNMENT_16
 	def_bool y
 	depends on MWINCHIP3D || MWINCHIP2 || MWINCHIPC6 || MCYRIXIII || X86_ELAN || MK6 || M586MMX || M586TSC || M586 || M486 || MVIAC3_2 || MGEODEGX1
 
-config X86_GOOD_APIC
-	def_bool y
-	depends on MK7 || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || M586MMX || MK8 || MEFFICEON || MCORE2 || MVIAC7 || X86_64
-
 config X86_INTEL_USERCOPY
 	def_bool y
 	depends on MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M586MMX || X86_GENERIC || MK8 || MK7 || MEFFICEON || MCORE2

diff --git a/trunk/arch/x86/Kconfig.debug b/trunk/arch/x86/Kconfig.debug
@@ -5,13 +5,15 @@ config TRACE_IRQFLAGS_SUPPORT
 
 source "lib/Kconfig.debug"
 
-config NONPROMISC_DEVMEM
+config STRICT_DEVMEM
 	bool "Filter access to /dev/mem"
 	help
-	  If this option is left off, you allow userspace access to all
+	  If this option is left on, you allow userspace (root) access to all
 	  of memory, including kernel and userspace memory. Accidental
 	  access to this is obviously disastrous, but specific access can
-	  be used by people debugging the kernel.
+	  be used by people debugging the kernel. Note that with PAT support
+	  enabled, even in this case there are restrictions on /dev/mem
+	  use due to the cache aliasing requirements.
 
 	  If this option is switched on, the /dev/mem file only allows
 	  userspace access to PCI space and the BIOS code and data regions.
@@ -287,7 +289,6 @@ config CPA_DEBUG
 
 config OPTIMIZE_INLINING
 	bool "Allow gcc to uninline functions marked 'inline'"
-	depends on BROKEN
 	help
 	  This option determines if the kernel forces gcc to inline the functions
 	  developers have marked 'inline'. Doing so takes away freedom from gcc to
@@ -298,5 +299,7 @@ config OPTIMIZE_INLINING
 	  become the default in the future, until then this option is there to
 	  test gcc for this.
 
+	  If unsure, say N.
+
 endmenu
 
diff --git a/trunk/arch/x86/boot/edd.c b/trunk/arch/x86/boot/edd.c
@@ -167,9 +167,8 @@ void query_edd(void)
 		 * Scan the BIOS-supported hard disks and query EDD
 		 * information...
 		 */
-		get_edd_info(devno, &ei);
-
-		if (boot_params.eddbuf_entries < EDDMAXNR) {
+		if (!get_edd_info(devno, &ei)
+		    && boot_params.eddbuf_entries < EDDMAXNR) {
 			memcpy(edp, &ei, sizeof ei);
 			edp++;
 			boot_params.eddbuf_entries++;

diff --git a/trunk/arch/x86/boot/pm.c b/trunk/arch/x86/boot/pm.c
@@ -98,12 +98,6 @@ static void reset_coprocessor(void)
 /*
  * Set up the GDT
  */
-#define GDT_ENTRY(flags, base, limit)		\
-	(((u64)(base & 0xff000000) << 32) |	\
-	 ((u64)flags << 40) |			\
-	 ((u64)(limit & 0x00ff0000) << 32) |	\
-	 ((u64)(base & 0x00ffffff) << 16) |	\
-	 ((u64)(limit & 0x0000ffff)))
 
 struct gdt_ptr {
 	u16 len;

diff --git a/trunk/arch/x86/configs/i386_defconfig b/trunk/arch/x86/configs/i386_defconfig
@@ -2047,7 +2047,7 @@ CONFIG_PROVIDE_OHCI1394_DMA_INIT=y
 # CONFIG_SAMPLES is not set
 # CONFIG_KGDB is not set
 CONFIG_HAVE_ARCH_KGDB=y
-# CONFIG_NONPROMISC_DEVMEM is not set
+# CONFIG_STRICT_DEVMEM is not set
 CONFIG_EARLY_PRINTK=y
 CONFIG_DEBUG_STACKOVERFLOW=y
 CONFIG_DEBUG_STACK_USAGE=y

diff --git a/trunk/arch/x86/configs/x86_64_defconfig b/trunk/arch/x86/configs/x86_64_defconfig
@@ -2012,7 +2012,7 @@ CONFIG_PROVIDE_OHCI1394_DMA_INIT=y
 # CONFIG_SAMPLES is not set
 # CONFIG_KGDB is not set
 CONFIG_HAVE_ARCH_KGDB=y
-# CONFIG_NONPROMISC_DEVMEM is not set
+# CONFIG_STRICT_DEVMEM is not set
 CONFIG_EARLY_PRINTK=y
 CONFIG_DEBUG_STACKOVERFLOW=y
 CONFIG_DEBUG_STACK_USAGE=y

diff --git a/trunk/arch/x86/ia32/ia32_signal.c b/trunk/arch/x86/ia32/ia32_signal.c
@@ -36,6 +36,11 @@
 
 #define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
 
+#define FIX_EFLAGS	(X86_EFLAGS_AC | X86_EFLAGS_OF | \
+			 X86_EFLAGS_DF | X86_EFLAGS_TF | X86_EFLAGS_SF | \
+			 X86_EFLAGS_ZF | X86_EFLAGS_AF | X86_EFLAGS_PF | \
+			 X86_EFLAGS_CF)
+
 asmlinkage int do_signal(struct pt_regs *regs, sigset_t *oldset);
 void signal_fault(struct pt_regs *regs, void __user *frame, char *where);
 
@@ -248,7 +253,7 @@ static int ia32_restore_sigcontext(struct pt_regs *regs,
 	regs->ss |= 3;
 
 	err |= __get_user(tmpflags, &sc->flags);
-	regs->flags = (regs->flags & ~0x40DD5) | (tmpflags & 0x40DD5);
+	regs->flags = (regs->flags & ~FIX_EFLAGS) | (tmpflags & FIX_EFLAGS);
 	/* disable syscall checks */
 	regs->orig_ax = -1;
 
@@ -515,7 +520,6 @@ int ia32_setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
 			compat_sigset_t *set, struct pt_regs *regs)
 {
 	struct rt_sigframe __user *frame;
-	struct exec_domain *ed = current_thread_info()->exec_domain;
 	void __user *restorer;
 	int err = 0;
 
@@ -538,8 +542,7 @@ int ia32_setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
 	if (!access_ok(VERIFY_WRITE, frame, sizeof(*frame)))
 		goto give_sigsegv;
 
-	err |= __put_user((ed && ed->signal_invmap && sig < 32
-			   ? ed->signal_invmap[sig] : sig), &frame->sig);
+	err |= __put_user(sig, &frame->sig);
 	err |= __put_user(ptr_to_compat(&frame->info), &frame->pinfo);
 	err |= __put_user(ptr_to_compat(&frame->uc), &frame->puc);
 	err |= copy_siginfo_to_user32(&frame->info, info);

diff --git a/trunk/arch/x86/ia32/ia32entry.S b/trunk/arch/x86/ia32/ia32entry.S
@@ -37,6 +37,11 @@
 	movq	%rax,R8(%rsp)
 	.endm
 
+	/*
+	 * Reload arg registers from stack in case ptrace changed them.
+	 * We don't reload %eax because syscall_trace_enter() returned
+	 * the value it wants us to use in the table lookup.
+	 */
 	.macro LOAD_ARGS32 offset
 	movl \offset(%rsp),%r11d
 	movl \offset+8(%rsp),%r10d
@@ -46,7 +51,6 @@
 	movl \offset+48(%rsp),%edx
 	movl \offset+56(%rsp),%esi
 	movl \offset+64(%rsp),%edi
-	movl \offset+72(%rsp),%eax
 	.endm
 
 	.macro CFI_STARTPROC32 simple
@@ -137,13 +141,12 @@ ENTRY(ia32_sysenter_target)
  	.previous	
 	GET_THREAD_INFO(%r10)
 	orl    $TS_COMPAT,TI_status(%r10)
-	testl  $(_TIF_SYSCALL_TRACE|_TIF_SYSCALL_AUDIT|_TIF_SECCOMP), \
-		 TI_flags(%r10)
+	testl  $_TIF_WORK_SYSCALL_ENTRY,TI_flags(%r10)
 	CFI_REMEMBER_STATE
 	jnz  sysenter_tracesys
-sysenter_do_call:	
 	cmpl	$(IA32_NR_syscalls-1),%eax
 	ja	ia32_badsys
+sysenter_do_call:
 	IA32_ARG_FIXUP 1
 	call	*ia32_sys_call_table(,%rax,8)
 	movq	%rax,RAX-ARGOFFSET(%rsp)
@@ -242,8 +245,7 @@ ENTRY(ia32_cstar_target)
 	.previous	
 	GET_THREAD_INFO(%r10)
 	orl   $TS_COMPAT,TI_status(%r10)
-	testl $(_TIF_SYSCALL_TRACE|_TIF_SYSCALL_AUDIT|_TIF_SECCOMP), \
-		TI_flags(%r10)
+	testl $_TIF_WORK_SYSCALL_ENTRY,TI_flags(%r10)
 	CFI_REMEMBER_STATE
 	jnz   cstar_tracesys
 cstar_do_call:	
@@ -337,8 +339,7 @@ ENTRY(ia32_syscall)
 	SAVE_ARGS 0,0,1
 	GET_THREAD_INFO(%r10)
 	orl   $TS_COMPAT,TI_status(%r10)
-	testl $(_TIF_SYSCALL_TRACE|_TIF_SYSCALL_AUDIT|_TIF_SECCOMP), \
-		TI_flags(%r10)
+	testl $_TIF_WORK_SYSCALL_ENTRY,TI_flags(%r10)
 	jnz ia32_tracesys
 ia32_do_syscall:	
 	cmpl $(IA32_NR_syscalls-1),%eax

diff --git a/trunk/arch/x86/kernel/Makefile b/trunk/arch/x86/kernel/Makefile
@@ -102,6 +102,7 @@ obj-$(CONFIG_OLPC)		+= olpc.o
 # 64 bit specific files
 ifeq ($(CONFIG_X86_64),y)
         obj-y				+= genapic_64.o genapic_flat_64.o genx2apic_uv_x.o tlb_uv.o
+	obj-y				+= bios_uv.o
         obj-$(CONFIG_X86_PM_TIMER)	+= pmtimer_64.o
         obj-$(CONFIG_AUDIT)		+= audit_64.o
 

diff --git a/trunk/arch/x86/kernel/acpi/sleep.c b/trunk/arch/x86/kernel/acpi/sleep.c
@@ -9,6 +9,7 @@
 #include <linux/bootmem.h>
 #include <linux/dmi.h>
 #include <linux/cpumask.h>
+#include <asm/segment.h>
 
 #include "realmode/wakeup.h"
 #include "sleep.h"
@@ -23,15 +24,6 @@ static unsigned long acpi_realmode;
 static char temp_stack[10240];
 #endif
 
-/* XXX: this macro should move to asm-x86/segment.h and be shared with the
-   boot code... */
-#define GDT_ENTRY(flags, base, limit)		\
-	(((u64)(base & 0xff000000) << 32) |	\
-	 ((u64)flags << 40) |			\
-	 ((u64)(limit & 0x00ff0000) << 32) |	\
-	 ((u64)(base & 0x00ffffff) << 16) |	\
-	 ((u64)(limit & 0x0000ffff)))
-
 /**
  * acpi_save_state_mem - save kernel state
  *