---

yaml --- r: 231970 b: refs/heads/master c: 12fed00 h: refs/heads/master v: v3
git-mirror · Jan 19, 2011 · fe56d66 · fe56d66
1 parent 831dce0
commit fe56d66
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diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: e55fdbd7414a3ee991d7081a256153f61ea98b9f
+refs/heads/master: 12fed00de963433128b5366a21a55808fab2f756
diff --git a/trunk/Documentation/lguest/lguest.c b/trunk/Documentation/lguest/lguest.c
@@ -39,9 +39,6 @@
 #include <limits.h>
 #include <stddef.h>
 #include <signal.h>
-#include <pwd.h>
-#include <grp.h>
-
 #include <linux/virtio_config.h>
 #include <linux/virtio_net.h>
 #include <linux/virtio_blk.h>
@@ -301,27 +298,20 @@ static void *map_zeroed_pages(unsigned int num)
 
 	/*
 	 * We use a private mapping (ie. if we write to the page, it will be
-	 * copied). We allocate an extra two pages PROT_NONE to act as guard
-	 * pages against read/write attempts that exceed allocated space.
+	 * copied).
 	 */
-	addr = mmap(NULL, getpagesize() * (num+2),
-		    PROT_NONE, MAP_PRIVATE, fd, 0);
-
+	addr = mmap(NULL, getpagesize() * num,
+		    PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE, fd, 0);
 	if (addr == MAP_FAILED)
 		err(1, "Mmapping %u pages of /dev/zero", num);
 
-	if (mprotect(addr + getpagesize(), getpagesize() * num,
-		     PROT_READ|PROT_WRITE) == -1)
-		err(1, "mprotect rw %u pages failed", num);
-
 	/*
 	 * One neat mmap feature is that you can close the fd, and it
 	 * stays mapped.
 	 */
 	close(fd);
 
-	/* Return address after PROT_NONE page */
-	return addr + getpagesize();
+	return addr;
 }
 
 /* Get some more pages for a device. */
@@ -353,7 +343,7 @@ static void map_at(int fd, void *addr, unsigned long offset, unsigned long len)
 	 * done to it.  This allows us to share untouched memory between
 	 * Guests.
 	 */
-	if (mmap(addr, len, PROT_READ|PROT_WRITE,
+	if (mmap(addr, len, PROT_READ|PROT_WRITE|PROT_EXEC,
 		 MAP_FIXED|MAP_PRIVATE, fd, offset) != MAP_FAILED)
 		return;
 
@@ -583,10 +573,10 @@ static void *_check_pointer(unsigned long addr, unsigned int size,
 			    unsigned int line)
 {
 	/*
-	 * Check if the requested address and size exceeds the allocated memory,
-	 * or addr + size wraps around.
+	 * We have to separately check addr and addr+size, because size could
+	 * be huge and addr + size might wrap around.
 	 */
-	if ((addr + size) > guest_limit || (addr + size) < addr)
+	if (addr >= guest_limit || addr + size >= guest_limit)
 		errx(1, "%s:%i: Invalid address %#lx", __FILE__, line, addr);
 	/*
 	 * We return a pointer for the caller's convenience, now we know it's
@@ -1882,8 +1872,6 @@ static struct option opts[] = {
 	{ "block", 1, NULL, 'b' },
 	{ "rng", 0, NULL, 'r' },
 	{ "initrd", 1, NULL, 'i' },
-	{ "username", 1, NULL, 'u' },
-	{ "chroot", 1, NULL, 'c' },
 	{ NULL },
 };
 static void usage(void)
@@ -1906,12 +1894,6 @@ int main(int argc, char *argv[])
 	/* If they specify an initrd file to load. */
 	const char *initrd_name = NULL;
 
-	/* Password structure for initgroups/setres[gu]id */
-	struct passwd *user_details = NULL;
-
-	/* Directory to chroot to */
-	char *chroot_path = NULL;
-
 	/* Save the args: we "reboot" by execing ourselves again. */
 	main_args = argv;
 
@@ -1968,14 +1950,6 @@ int main(int argc, char *argv[])
 		case 'i':
 			initrd_name = optarg;
 			break;
-		case 'u':
-			user_details = getpwnam(optarg);
-			if (!user_details)
-				err(1, "getpwnam failed, incorrect username?");
-			break;
-		case 'c':
-			chroot_path = optarg;
-			break;
 		default:
 			warnx("Unknown argument %s", argv[optind]);
 			usage();
@@ -2047,37 +2021,6 @@ int main(int argc, char *argv[])
 	/* If we exit via err(), this kills all the threads, restores tty. */
 	atexit(cleanup_devices);
 
-	/* If requested, chroot to a directory */
-	if (chroot_path) {
-		if (chroot(chroot_path) != 0)
-			err(1, "chroot(\"%s\") failed", chroot_path);
-
-		if (chdir("/") != 0)
-			err(1, "chdir(\"/\") failed");
-
-		verbose("chroot done\n");
-	}
-
-	/* If requested, drop privileges */
-	if (user_details) {
-		uid_t u;
-		gid_t g;
-
-		u = user_details->pw_uid;
-		g = user_details->pw_gid;
-
-		if (initgroups(user_details->pw_name, g) != 0)
-			err(1, "initgroups failed");
-
-		if (setresgid(g, g, g) != 0)
-			err(1, "setresgid failed");
-
-		if (setresuid(u, u, u) != 0)
-			err(1, "setresuid failed");
-
-		verbose("Dropping privileges completed\n");
-	}
-
 	/* Finally, run the Guest.  This doesn't return. */
 	run_guest();
 }

diff --git a/trunk/Documentation/lguest/lguest.txt b/trunk/Documentation/lguest/lguest.txt
@@ -117,11 +117,6 @@ Running Lguest:
 
   for general information on how to get bridging to work.
 
-- Random number generation. Using the --rng option will provide a
-  /dev/hwrng in the guest that will read from the host's /dev/random.
-  Use this option in conjunction with rng-tools (see ../hw_random.txt)
-  to provide entropy to the guest kernel's /dev/random.
-
 There is a helpful mailing list at http://ozlabs.org/mailman/listinfo/lguest
 
 Good luck!

diff --git a/trunk/arch/arm/mach-msm/board-qsd8x50.c b/trunk/arch/arm/mach-msm/board-qsd8x50.c
@@ -43,7 +43,7 @@ static const unsigned        qsd8x50_surf_smc91x_gpio __initdata = 156;
  * at run-time: they vary from board to board, and the true
  * configuration won't be known until boot.
  */
-static struct resource smc91x_resources[] = {
+static struct resource smc91x_resources[] __initdata = {
 	[0] = {
 		.flags = IORESOURCE_MEM,
 	},
@@ -52,7 +52,7 @@ static struct resource smc91x_resources[] = {
 	},
 };
 
-static struct platform_device smc91x_device = {
+static struct platform_device smc91x_device __initdata = {
 	.name           = "smc91x",
 	.id             = 0,
 	.num_resources  = ARRAY_SIZE(smc91x_resources),

diff --git a/trunk/arch/x86/include/asm/numa_32.h b/trunk/arch/x86/include/asm/numa_32.h
@@ -1,8 +1,6 @@
 #ifndef _ASM_X86_NUMA_32_H
 #define _ASM_X86_NUMA_32_H
 
-extern int numa_off;
-
 extern int pxm_to_nid(int pxm);
 extern void numa_remove_cpu(int cpu);
 

diff --git a/trunk/arch/x86/include/asm/numa_64.h b/trunk/arch/x86/include/asm/numa_64.h
@@ -40,7 +40,6 @@ extern void __cpuinit numa_remove_cpu(int cpu);
 #ifdef CONFIG_NUMA_EMU
 #define FAKE_NODE_MIN_SIZE	((u64)32 << 20)
 #define FAKE_NODE_MIN_HASH_MASK	(~(FAKE_NODE_MIN_SIZE - 1UL))
-void numa_emu_cmdline(char *);
 #endif /* CONFIG_NUMA_EMU */
 #else
 static inline void init_cpu_to_node(void)		{ }

diff --git a/trunk/arch/x86/kernel/vmlinux.lds.S b/trunk/arch/x86/kernel/vmlinux.lds.S
@@ -34,11 +34,9 @@ OUTPUT_FORMAT(CONFIG_OUTPUT_FORMAT, CONFIG_OUTPUT_FORMAT, CONFIG_OUTPUT_FORMAT)
 #ifdef CONFIG_X86_32
 OUTPUT_ARCH(i386)
 ENTRY(phys_startup_32)
-jiffies = jiffies_64;
 #else
 OUTPUT_ARCH(i386:x86-64)
 ENTRY(phys_startup_64)
-jiffies_64 = jiffies;
 #endif
 
 #if defined(CONFIG_X86_64) && defined(CONFIG_DEBUG_RODATA)
@@ -142,6 +140,15 @@ SECTIONS
 		CACHELINE_ALIGNED_DATA(L1_CACHE_BYTES)
 
 		DATA_DATA
+		/*
+		 * Workaround a binutils (2.20.51.0.12 to 2.21.51.0.3) bug.
+		 * This makes jiffies relocatable in such binutils
+		 */
+#ifdef CONFIG_X86_32
+		jiffies = jiffies_64;
+#else
+		jiffies_64 = jiffies;
+#endif
 		CONSTRUCTORS
 
 		/* rarely changed data like cpu maps */

diff --git a/trunk/arch/x86/lguest/Kconfig b/trunk/arch/x86/lguest/Kconfig
@@ -2,7 +2,6 @@ config LGUEST_GUEST
 	bool "Lguest guest support"
 	select PARAVIRT
 	depends on X86_32
-	select VIRTUALIZATION
 	select VIRTIO
 	select VIRTIO_RING
 	select VIRTIO_CONSOLE

diff --git a/trunk/arch/x86/lguest/boot.c b/trunk/arch/x86/lguest/boot.c
@@ -824,7 +824,7 @@ static void __init lguest_init_IRQ(void)
 
 	for (i = FIRST_EXTERNAL_VECTOR; i < NR_VECTORS; i++) {
 		/* Some systems map "vectors" to interrupts weirdly.  Not us! */
-		__this_cpu_write(vector_irq[i], i - FIRST_EXTERNAL_VECTOR);
+		__get_cpu_var(vector_irq)[i] = i - FIRST_EXTERNAL_VECTOR;
 		if (i != SYSCALL_VECTOR)
 			set_intr_gate(i, interrupt[i - FIRST_EXTERNAL_VECTOR]);
 	}

diff --git a/trunk/arch/x86/mm/numa.c b/trunk/arch/x86/mm/numa.c
@@ -2,28 +2,6 @@
 #include <linux/topology.h>
 #include <linux/module.h>
 #include <linux/bootmem.h>
-#include <asm/numa.h>
-#include <asm/acpi.h>
-
-int __initdata numa_off;
-
-static __init int numa_setup(char *opt)
-{
-	if (!opt)
-		return -EINVAL;
-	if (!strncmp(opt, "off", 3))
-		numa_off = 1;
-#ifdef CONFIG_NUMA_EMU
-	if (!strncmp(opt, "fake=", 5))
-		numa_emu_cmdline(opt + 5);
-#endif
-#ifdef CONFIG_ACPI_NUMA
-	if (!strncmp(opt, "noacpi", 6))
-		acpi_numa = -1;
-#endif
-	return 0;
-}
-early_param("numa", numa_setup);
 
 /*
  * Which logical CPUs are on which nodes

diff --git a/trunk/arch/x86/mm/numa_64.c b/trunk/arch/x86/mm/numa_64.c
@@ -30,6 +30,7 @@ s16 apicid_to_node[MAX_LOCAL_APIC] __cpuinitdata = {
 	[0 ... MAX_LOCAL_APIC-1] = NUMA_NO_NODE
 };
 
+int numa_off __initdata;
 static unsigned long __initdata nodemap_addr;
 static unsigned long __initdata nodemap_size;
 
@@ -262,11 +263,6 @@ static struct bootnode nodes[MAX_NUMNODES] __initdata;
 static struct bootnode physnodes[MAX_NUMNODES] __cpuinitdata;
 static char *cmdline __initdata;
 
-void __init numa_emu_cmdline(char *str)
-{
-	cmdline = str;
-}
-
 static int __init setup_physnodes(unsigned long start, unsigned long end,
 					int acpi, int amd)
 {
@@ -674,6 +670,24 @@ unsigned long __init numa_free_all_bootmem(void)
 	return pages;
 }
 
+static __init int numa_setup(char *opt)
+{
+	if (!opt)
+		return -EINVAL;
+	if (!strncmp(opt, "off", 3))
+		numa_off = 1;
+#ifdef CONFIG_NUMA_EMU
+	if (!strncmp(opt, "fake=", 5))
+		cmdline = opt + 5;
+#endif
+#ifdef CONFIG_ACPI_NUMA
+	if (!strncmp(opt, "noacpi", 6))
+		acpi_numa = -1;
+#endif
+	return 0;
+}
+early_param("numa", numa_setup);
+
 #ifdef CONFIG_NUMA
 
 static __init int find_near_online_node(int node)

diff --git a/trunk/arch/x86/mm/srat_32.c b/trunk/arch/x86/mm/srat_32.c
@@ -59,6 +59,7 @@ static struct node_memory_chunk_s __initdata node_memory_chunk[MAXCHUNKS];
 static int __initdata num_memory_chunks; /* total number of memory chunks */
 static u8 __initdata apicid_to_pxm[MAX_APICID];
 
+int numa_off __initdata;
 int acpi_numa __initdata;
 
 static __init void bad_srat(void)

diff --git a/trunk/drivers/acpi/acpica/accommon.h b/trunk/drivers/acpi/acpica/accommon.h
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2011, Intel Corp.
+ * Copyright (C) 2000 - 2010, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without

diff --git a/trunk/drivers/acpi/acpica/acconfig.h b/trunk/drivers/acpi/acpica/acconfig.h
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2011, Intel Corp.
+ * Copyright (C) 2000 - 2010, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without

diff --git a/trunk/drivers/acpi/acpica/acdebug.h b/trunk/drivers/acpi/acpica/acdebug.h
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2011, Intel Corp.
+ * Copyright (C) 2000 - 2010, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without

diff --git a/trunk/drivers/acpi/acpica/acdispat.h b/trunk/drivers/acpi/acpica/acdispat.h
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2011, Intel Corp.
+ * Copyright (C) 2000 - 2010, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without

diff --git a/trunk/drivers/acpi/acpica/acevents.h b/trunk/drivers/acpi/acpica/acevents.h
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2011, Intel Corp.
+ * Copyright (C) 2000 - 2010, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without

diff --git a/trunk/drivers/acpi/acpica/acglobal.h b/trunk/drivers/acpi/acpica/acglobal.h
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2011, Intel Corp.
+ * Copyright (C) 2000 - 2010, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without

diff --git a/trunk/drivers/acpi/acpica/achware.h b/trunk/drivers/acpi/acpica/achware.h
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2011, Intel Corp.
+ * Copyright (C) 2000 - 2010, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without

diff --git a/trunk/drivers/acpi/acpica/acinterp.h b/trunk/drivers/acpi/acpica/acinterp.h
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2011, Intel Corp.
+ * Copyright (C) 2000 - 2010, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without

diff --git a/trunk/drivers/acpi/acpica/aclocal.h b/trunk/drivers/acpi/acpica/aclocal.h
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2011, Intel Corp.
+ * Copyright (C) 2000 - 2010, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without