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-rw-r--r--arch/arc/include/asm/ptrace.h2
-rw-r--r--arch/arc/include/asm/syscall.h5
-rw-r--r--arch/arc/kernel/entry.S4
-rw-r--r--arch/arc/lib/strchr-700.S10
-rw-r--r--arch/arm/boot/dts/at91sam9n12ek.dts4
-rw-r--r--arch/arm/boot/dts/at91sam9x5.dtsi2
-rw-r--r--arch/arm/mach-davinci/board-dm355-leopard.c1
-rw-r--r--arch/arm/mach-davinci/board-dm644x-evm.c1
-rw-r--r--arch/arm/mach-davinci/board-dm646x-evm.c1
-rw-r--r--arch/arm/mach-davinci/board-neuros-osd2.c1
-rw-r--r--arch/arm/mm/Kconfig9
-rw-r--r--arch/arm64/kernel/perf_event.c10
-rw-r--r--arch/s390/kvm/kvm-s390.c21
-rw-r--r--arch/x86/include/asm/bootparam_utils.h4
-rw-r--r--arch/x86/kernel/sys_x86_64.c2
-rw-r--r--arch/x86/mm/mmap.c8
-rw-r--r--arch/x86/xen/setup.c22
-rw-r--r--arch/x86/xen/smp.c11
18 files changed, 91 insertions, 27 deletions
diff --git a/arch/arc/include/asm/ptrace.h b/arch/arc/include/asm/ptrace.h
index 6179de7e07c..2046a89a57c 100644
--- a/arch/arc/include/asm/ptrace.h
+++ b/arch/arc/include/asm/ptrace.h
@@ -52,12 +52,14 @@ struct pt_regs {
/*to distinguish bet excp, syscall, irq */
union {
+ struct {
#ifdef CONFIG_CPU_BIG_ENDIAN
/* so that assembly code is same for LE/BE */
unsigned long orig_r8:16, event:16;
#else
unsigned long event:16, orig_r8:16;
#endif
+ };
long orig_r8_word;
};
};
diff --git a/arch/arc/include/asm/syscall.h b/arch/arc/include/asm/syscall.h
index 33ab3048e9b..29de0980430 100644
--- a/arch/arc/include/asm/syscall.h
+++ b/arch/arc/include/asm/syscall.h
@@ -18,7 +18,7 @@ static inline long
syscall_get_nr(struct task_struct *task, struct pt_regs *regs)
{
if (user_mode(regs) && in_syscall(regs))
- return regs->orig_r8;
+ return regs->r8;
else
return -1;
}
@@ -26,8 +26,7 @@ syscall_get_nr(struct task_struct *task, struct pt_regs *regs)
static inline void
syscall_rollback(struct task_struct *task, struct pt_regs *regs)
{
- /* XXX: I can't fathom how pt_regs->r8 will be clobbered ? */
- regs->r8 = regs->orig_r8;
+ regs->r0 = regs->orig_r0;
}
static inline long
diff --git a/arch/arc/kernel/entry.S b/arch/arc/kernel/entry.S
index 0c6d664d4a8..6dbe359c760 100644
--- a/arch/arc/kernel/entry.S
+++ b/arch/arc/kernel/entry.S
@@ -498,7 +498,7 @@ tracesys_exit:
trap_with_param:
; stop_pc info by gdb needs this info
- stw orig_r8_IS_BRKPT, [sp, PT_orig_r8]
+ st orig_r8_IS_BRKPT, [sp, PT_orig_r8]
mov r0, r12
lr r1, [efa]
@@ -723,7 +723,7 @@ not_exception:
; things to what they were, before returning from L2 context
;----------------------------------------------------------------
- ldw r9, [sp, PT_orig_r8] ; get orig_r8 to make sure it is
+ ld r9, [sp, PT_orig_r8] ; get orig_r8 to make sure it is
brne r9, orig_r8_IS_IRQ2, 149f ; infact a L2 ISR ret path
ld r9, [sp, PT_status32] ; get statu32_l2 (saved in pt_regs)
diff --git a/arch/arc/lib/strchr-700.S b/arch/arc/lib/strchr-700.S
index 99c10475d47..9c548c7cf00 100644
--- a/arch/arc/lib/strchr-700.S
+++ b/arch/arc/lib/strchr-700.S
@@ -39,9 +39,18 @@ ARC_ENTRY strchr
ld.a r2,[r0,4]
sub r12,r6,r7
bic r12,r12,r6
+#ifdef __LITTLE_ENDIAN__
and r7,r12,r4
breq r7,0,.Loop ; For speed, we want this branch to be unaligned.
b .Lfound_char ; Likewise this one.
+#else
+ and r12,r12,r4
+ breq r12,0,.Loop ; For speed, we want this branch to be unaligned.
+ lsr_s r12,r12,7
+ bic r2,r7,r6
+ b.d .Lfound_char_b
+ and_s r2,r2,r12
+#endif
; /* We require this code address to be unaligned for speed... */
.Laligned:
ld_s r2,[r0]
@@ -95,6 +104,7 @@ ARC_ENTRY strchr
lsr r7,r7,7
bic r2,r7,r6
+.Lfound_char_b:
norm r2,r2
sub_s r0,r0,4
asr_s r2,r2,3
diff --git a/arch/arm/boot/dts/at91sam9n12ek.dts b/arch/arm/boot/dts/at91sam9n12ek.dts
index d30e48bd1e9..28ba7989387 100644
--- a/arch/arm/boot/dts/at91sam9n12ek.dts
+++ b/arch/arm/boot/dts/at91sam9n12ek.dts
@@ -14,11 +14,11 @@
compatible = "atmel,at91sam9n12ek", "atmel,at91sam9n12", "atmel,at91sam9";
chosen {
- bootargs = "mem=128M console=ttyS0,115200 root=/dev/mtdblock1 rw rootfstype=jffs2";
+ bootargs = "console=ttyS0,115200 root=/dev/mtdblock1 rw rootfstype=jffs2";
};
memory {
- reg = <0x20000000 0x10000000>;
+ reg = <0x20000000 0x8000000>;
};
clocks {
diff --git a/arch/arm/boot/dts/at91sam9x5.dtsi b/arch/arm/boot/dts/at91sam9x5.dtsi
index 1145ac330fb..b5833d1f7cf 100644
--- a/arch/arm/boot/dts/at91sam9x5.dtsi
+++ b/arch/arm/boot/dts/at91sam9x5.dtsi
@@ -643,7 +643,7 @@
};
rtc@fffffeb0 {
- compatible = "atmel,at91rm9200-rtc";
+ compatible = "atmel,at91sam9x5-rtc";
reg = <0xfffffeb0 0x40>;
interrupts = <1 4 7>;
status = "disabled";
diff --git a/arch/arm/mach-davinci/board-dm355-leopard.c b/arch/arm/mach-davinci/board-dm355-leopard.c
index dff4ddc5ef8..139e42da25f 100644
--- a/arch/arm/mach-davinci/board-dm355-leopard.c
+++ b/arch/arm/mach-davinci/board-dm355-leopard.c
@@ -75,6 +75,7 @@ static struct davinci_nand_pdata davinci_nand_data = {
.parts = davinci_nand_partitions,
.nr_parts = ARRAY_SIZE(davinci_nand_partitions),
.ecc_mode = NAND_ECC_HW_SYNDROME,
+ .ecc_bits = 4,
.bbt_options = NAND_BBT_USE_FLASH,
};
diff --git a/arch/arm/mach-davinci/board-dm644x-evm.c b/arch/arm/mach-davinci/board-dm644x-evm.c
index a33686a6fbb..fa4bfaf952d 100644
--- a/arch/arm/mach-davinci/board-dm644x-evm.c
+++ b/arch/arm/mach-davinci/board-dm644x-evm.c
@@ -153,6 +153,7 @@ static struct davinci_nand_pdata davinci_evm_nandflash_data = {
.parts = davinci_evm_nandflash_partition,
.nr_parts = ARRAY_SIZE(davinci_evm_nandflash_partition),
.ecc_mode = NAND_ECC_HW,
+ .ecc_bits = 1,
.bbt_options = NAND_BBT_USE_FLASH,
.timing = &davinci_evm_nandflash_timing,
};
diff --git a/arch/arm/mach-davinci/board-dm646x-evm.c b/arch/arm/mach-davinci/board-dm646x-evm.c
index fbb8e5ab1dc..0c005e876ca 100644
--- a/arch/arm/mach-davinci/board-dm646x-evm.c
+++ b/arch/arm/mach-davinci/board-dm646x-evm.c
@@ -90,6 +90,7 @@ static struct davinci_nand_pdata davinci_nand_data = {
.parts = davinci_nand_partitions,
.nr_parts = ARRAY_SIZE(davinci_nand_partitions),
.ecc_mode = NAND_ECC_HW,
+ .ecc_bits = 1,
.options = 0,
};
diff --git a/arch/arm/mach-davinci/board-neuros-osd2.c b/arch/arm/mach-davinci/board-neuros-osd2.c
index 2bc112adf56..808233b60e3 100644
--- a/arch/arm/mach-davinci/board-neuros-osd2.c
+++ b/arch/arm/mach-davinci/board-neuros-osd2.c
@@ -88,6 +88,7 @@ static struct davinci_nand_pdata davinci_ntosd2_nandflash_data = {
.parts = davinci_ntosd2_nandflash_partition,
.nr_parts = ARRAY_SIZE(davinci_ntosd2_nandflash_partition),
.ecc_mode = NAND_ECC_HW,
+ .ecc_bits = 1,
.bbt_options = NAND_BBT_USE_FLASH,
};
diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig
index 2950082a531..08c9fe917d1 100644
--- a/arch/arm/mm/Kconfig
+++ b/arch/arm/mm/Kconfig
@@ -789,15 +789,18 @@ config KUSER_HELPERS
the CPU type fitted to the system. This permits binaries to be
run on ARMv4 through to ARMv7 without modification.
+ See Documentation/arm/kernel_user_helpers.txt for details.
+
However, the fixed address nature of these helpers can be used
by ROP (return orientated programming) authors when creating
exploits.
If all of the binaries and libraries which run on your platform
are built specifically for your platform, and make no use of
- these helpers, then you can turn this option off. However,
- when such an binary or library is run, it will receive a SIGILL
- signal, which will terminate the program.
+ these helpers, then you can turn this option off to hinder
+ such exploits. However, in that case, if a binary or library
+ relying on those helpers is run, it will receive a SIGILL signal,
+ which will terminate the program.
Say N here only if you are absolutely certain that you do not
need these helpers; otherwise, the safe option is to say Y.
diff --git a/arch/arm64/kernel/perf_event.c b/arch/arm64/kernel/perf_event.c
index 9ba33c40cdf..12e6ccb8869 100644
--- a/arch/arm64/kernel/perf_event.c
+++ b/arch/arm64/kernel/perf_event.c
@@ -107,7 +107,12 @@ armpmu_map_cache_event(const unsigned (*cache_map)
static int
armpmu_map_event(const unsigned (*event_map)[PERF_COUNT_HW_MAX], u64 config)
{
- int mapping = (*event_map)[config];
+ int mapping;
+
+ if (config >= PERF_COUNT_HW_MAX)
+ return -EINVAL;
+
+ mapping = (*event_map)[config];
return mapping == HW_OP_UNSUPPORTED ? -ENOENT : mapping;
}
@@ -317,6 +322,9 @@ validate_event(struct pmu_hw_events *hw_events,
struct hw_perf_event fake_event = event->hw;
struct pmu *leader_pmu = event->group_leader->pmu;
+ if (is_software_event(event))
+ return 1;
+
if (event->pmu != leader_pmu || event->state <= PERF_EVENT_STATE_OFF)
return 1;
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c
index c1c7c683fa2..698fb826e14 100644
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -622,14 +622,25 @@ static int __vcpu_run(struct kvm_vcpu *vcpu)
kvm_s390_deliver_pending_interrupts(vcpu);
vcpu->arch.sie_block->icptcode = 0;
- preempt_disable();
- kvm_guest_enter();
- preempt_enable();
VCPU_EVENT(vcpu, 6, "entering sie flags %x",
atomic_read(&vcpu->arch.sie_block->cpuflags));
trace_kvm_s390_sie_enter(vcpu,
atomic_read(&vcpu->arch.sie_block->cpuflags));
+
+ /*
+ * As PF_VCPU will be used in fault handler, between guest_enter
+ * and guest_exit should be no uaccess.
+ */
+ preempt_disable();
+ kvm_guest_enter();
+ preempt_enable();
rc = sie64a(vcpu->arch.sie_block, vcpu->run->s.regs.gprs);
+ kvm_guest_exit();
+
+ VCPU_EVENT(vcpu, 6, "exit sie icptcode %d",
+ vcpu->arch.sie_block->icptcode);
+ trace_kvm_s390_sie_exit(vcpu, vcpu->arch.sie_block->icptcode);
+
if (rc) {
if (kvm_is_ucontrol(vcpu->kvm)) {
rc = SIE_INTERCEPT_UCONTROL;
@@ -639,10 +650,6 @@ static int __vcpu_run(struct kvm_vcpu *vcpu)
rc = kvm_s390_inject_program_int(vcpu, PGM_ADDRESSING);
}
}
- VCPU_EVENT(vcpu, 6, "exit sie icptcode %d",
- vcpu->arch.sie_block->icptcode);
- trace_kvm_s390_sie_exit(vcpu, vcpu->arch.sie_block->icptcode);
- kvm_guest_exit();
memcpy(&vcpu->run->s.regs.gprs[14], &vcpu->arch.sie_block->gg14, 16);
return rc;
diff --git a/arch/x86/include/asm/bootparam_utils.h b/arch/x86/include/asm/bootparam_utils.h
index 653668d140f..4a8cb8d7cbd 100644
--- a/arch/x86/include/asm/bootparam_utils.h
+++ b/arch/x86/include/asm/bootparam_utils.h
@@ -35,9 +35,9 @@ static void sanitize_boot_params(struct boot_params *boot_params)
*/
if (boot_params->sentinel) {
/* fields in boot_params are left uninitialized, clear them */
- memset(&boot_params->olpc_ofw_header, 0,
+ memset(&boot_params->ext_ramdisk_image, 0,
(char *)&boot_params->efi_info -
- (char *)&boot_params->olpc_ofw_header);
+ (char *)&boot_params->ext_ramdisk_image);
memset(&boot_params->kbd_status, 0,
(char *)&boot_params->hdr -
(char *)&boot_params->kbd_status);
diff --git a/arch/x86/kernel/sys_x86_64.c b/arch/x86/kernel/sys_x86_64.c
index 48f8375e4c6..30277e27431 100644
--- a/arch/x86/kernel/sys_x86_64.c
+++ b/arch/x86/kernel/sys_x86_64.c
@@ -101,7 +101,7 @@ static void find_start_end(unsigned long flags, unsigned long *begin,
*begin = new_begin;
}
} else {
- *begin = mmap_legacy_base();
+ *begin = current->mm->mmap_legacy_base;
*end = TASK_SIZE;
}
}
diff --git a/arch/x86/mm/mmap.c b/arch/x86/mm/mmap.c
index c1af32385ab..5c1ae28825c 100644
--- a/arch/x86/mm/mmap.c
+++ b/arch/x86/mm/mmap.c
@@ -98,7 +98,7 @@ static unsigned long mmap_base(void)
* Bottom-up (legacy) layout on X86_32 did not support randomization, X86_64
* does, but not when emulating X86_32
*/
-unsigned long mmap_legacy_base(void)
+static unsigned long mmap_legacy_base(void)
{
if (mmap_is_ia32())
return TASK_UNMAPPED_BASE;
@@ -112,12 +112,14 @@ unsigned long mmap_legacy_base(void)
*/
void arch_pick_mmap_layout(struct mm_struct *mm)
{
+ mm->mmap_legacy_base = mmap_legacy_base();
+ mm->mmap_base = mmap_base();
+
if (mmap_is_legacy()) {
- mm->mmap_base = mmap_legacy_base();
+ mm->mmap_base = mm->mmap_legacy_base;
mm->get_unmapped_area = arch_get_unmapped_area;
mm->unmap_area = arch_unmap_area;
} else {
- mm->mmap_base = mmap_base();
mm->get_unmapped_area = arch_get_unmapped_area_topdown;
mm->unmap_area = arch_unmap_area_topdown;
}
diff --git a/arch/x86/xen/setup.c b/arch/x86/xen/setup.c
index 94eac5c85cd..0a9fb7a0b45 100644
--- a/arch/x86/xen/setup.c
+++ b/arch/x86/xen/setup.c
@@ -313,6 +313,17 @@ static void xen_align_and_add_e820_region(u64 start, u64 size, int type)
e820_add_region(start, end - start, type);
}
+void xen_ignore_unusable(struct e820entry *list, size_t map_size)
+{
+ struct e820entry *entry;
+ unsigned int i;
+
+ for (i = 0, entry = list; i < map_size; i++, entry++) {
+ if (entry->type == E820_UNUSABLE)
+ entry->type = E820_RAM;
+ }
+}
+
/**
* machine_specific_memory_setup - Hook for machine specific memory setup.
**/
@@ -353,6 +364,17 @@ char * __init xen_memory_setup(void)
}
BUG_ON(rc);
+ /*
+ * Xen won't allow a 1:1 mapping to be created to UNUSABLE
+ * regions, so if we're using the machine memory map leave the
+ * region as RAM as it is in the pseudo-physical map.
+ *
+ * UNUSABLE regions in domUs are not handled and will need
+ * a patch in the future.
+ */
+ if (xen_initial_domain())
+ xen_ignore_unusable(map, memmap.nr_entries);
+
/* Make sure the Xen-supplied memory map is well-ordered. */
sanitize_e820_map(map, memmap.nr_entries, &memmap.nr_entries);
diff --git a/arch/x86/xen/smp.c b/arch/x86/xen/smp.c
index d99cae8147d..a1e58e19d0c 100644
--- a/arch/x86/xen/smp.c
+++ b/arch/x86/xen/smp.c
@@ -667,8 +667,15 @@ static void __init xen_hvm_smp_prepare_cpus(unsigned int max_cpus)
static int __cpuinit xen_hvm_cpu_up(unsigned int cpu, struct task_struct *tidle)
{
int rc;
- rc = native_cpu_up(cpu, tidle);
- WARN_ON (xen_smp_intr_init(cpu));
+ /*
+ * xen_smp_intr_init() needs to run before native_cpu_up()
+ * so that IPI vectors are set up on the booting CPU before
+ * it is marked online in native_cpu_up().
+ */
+ rc = xen_smp_intr_init(cpu);
+ WARN_ON(rc);
+ if (!rc)
+ rc = native_cpu_up(cpu, tidle);
return rc;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-18 17:24:27 +0000