extern unsigned int rtas_data;
extern unsigned long long memory_limit;
+extern bool init_mem_is_free;
extern unsigned long klimit;
extern void *zalloc_maybe_bootmem(size_t size, gfp_t mask);
#ifdef CONFIG_PPC_DENORMALISATION
mfspr r10,SPRN_HSRR1
- mfspr r11,SPRN_HSRR0 /* save HSRR0 */
andis. r10,r10,(HSRR1_DENORM)@h /* denorm? */
- addi r11,r11,-4 /* HSRR0 is next instruction */
bne+ denorm_assist
#endif
*/
XVCPSGNDP32(32)
denorm_done:
+ mfspr r11,SPRN_HSRR0
+ subi r11,r11,4
mtspr SPRN_HSRR0,r11
mtcrf 0x80,r9
ld r9,PACA_EXGEN+EX_R9(r13)
pc = regs->nip - (instructions_to_print * 3 / 4 * sizeof(int));
+ /*
+ * Make sure the NIP points at userspace, not kernel text/data or
+ * elsewhere.
+ */
+ if (!__access_ok(pc, instructions_to_print * sizeof(int), USER_DS)) {
+ pr_info("%s[%d]: Bad NIP, not dumping instructions.\n",
+ current->comm, current->pid);
+ return;
+ }
+
pr_info("%s[%d]: code: ", current->comm, current->pid);
for (i = 0; i < instructions_to_print; i++) {
std r11, GPR11(r1) /* Temporary stash */
+ /*
+ * Move the saved user r1 to the kernel stack in case PACATMSCRATCH is
+ * clobbered by an exception once we turn on MSR_RI below.
+ */
+ ld r11, PACATMSCRATCH(r13)
+ std r11, GPR1(r1)
+
+ /*
+ * Store r13 away so we can free up the scratch SPR for the SLB fault
+ * handler (needed once we start accessing the thread_struct).
+ */
+ GET_SCRATCH0(r11)
+ std r11, GPR13(r1)
+
/* Reset MSR RI so we can take SLB faults again */
li r11, MSR_RI
mtmsrd r11, 1
SAVE_GPR(8, r7) /* user r8 */
SAVE_GPR(9, r7) /* user r9 */
SAVE_GPR(10, r7) /* user r10 */
- ld r3, PACATMSCRATCH(r13) /* user r1 */
+ ld r3, GPR1(r1) /* user r1 */
ld r4, GPR7(r1) /* user r7 */
ld r5, GPR11(r1) /* user r11 */
ld r6, GPR12(r1) /* user r12 */
- GET_SCRATCH0(8) /* user r13 */
+ ld r8, GPR13(r1) /* user r13 */
std r3, GPR1(r7)
std r4, GPR7(r7)
std r5, GPR11(r7)
addc r0, r8, r9
ld r10, 0(r4)
ld r11, 8(r4)
+#ifdef CONFIG_CPU_LITTLE_ENDIAN
+ rotldi r5, r5, 8
+#endif
adde r0, r0, r10
add r5, r5, r7
adde r0, r0, r11
return 0;
}
-int patch_instruction(unsigned int *addr, unsigned int instr)
+static int do_patch_instruction(unsigned int *addr, unsigned int instr)
{
int err;
unsigned int *patch_addr = NULL;
}
#else /* !CONFIG_STRICT_KERNEL_RWX */
-int patch_instruction(unsigned int *addr, unsigned int instr)
+static int do_patch_instruction(unsigned int *addr, unsigned int instr)
{
return raw_patch_instruction(addr, instr);
}
#endif /* CONFIG_STRICT_KERNEL_RWX */
+
+int patch_instruction(unsigned int *addr, unsigned int instr)
+{
+ /* Make sure we aren't patching a freed init section */
+ if (init_mem_is_free && init_section_contains(addr, 4)) {
+ pr_debug("Skipping init section patching addr: 0x%px\n", addr);
+ return 0;
+ }
+ return do_patch_instruction(addr, instr);
+}
NOKPROBE_SYMBOL(patch_instruction);
int patch_branch(unsigned int *addr, unsigned long target, int flags)
#endif
unsigned long long memory_limit;
+bool init_mem_is_free;
#ifdef CONFIG_HIGHMEM
pte_t *kmap_pte;
{
ppc_md.progress = ppc_printk_progress;
mark_initmem_nx();
+ init_mem_is_free = true;
free_initmem_default(POISON_FREE_INITMEM);
}
int new_nid;
/* Use associativity from first thread for all siblings */
- vphn_get_associativity(cpu, associativity);
+ if (vphn_get_associativity(cpu, associativity))
+ return cpu_to_node(cpu);
+
new_nid = associativity_to_nid(associativity);
if (new_nid < 0 || !node_possible(new_nid))
new_nid = first_online_node;
* Need to ensure that NODE_DATA is initialized for a node from
* available memory (see memblock_alloc_try_nid). If unable to
* init the node, then default to nearest node that has memory
- * installed.
+ * installed. Skip onlining a node if the subsystems are not
+ * yet initialized.
*/
- if (try_online_node(new_nid))
+ if (!topology_inited || try_online_node(new_nid))
new_nid = first_online_node;
#else
/*
static void reset_topology_timer(void)
{
- mod_timer(&topology_timer, jiffies + topology_timer_secs * HZ);
+ if (vphn_enabled)
+ mod_timer(&topology_timer, jiffies + topology_timer_secs * HZ);
}
#ifdef CONFIG_SMP
* Since any pkey can be used for data or execute, we will just treat
* all keys as equal and track them as one entity.
*/
- pkeys_total = be32_to_cpu(vals[0]);
+ pkeys_total = vals[0];
pkeys_devtree_defined = true;
}
level_shift = entries_shift + 3;
level_shift = max_t(unsigned int, level_shift, PAGE_SHIFT);
- if ((level_shift - 3) * levels + page_shift >= 60)
+ if ((level_shift - 3) * levels + page_shift >= 55)
return -EINVAL;
/* Allocate TCE table */
* but they are bigger and use more memory for the lookup table.
*/
-#include <linux/crc32poly.h>
#include "xz_private.h"
/*
# endif
#endif
+#ifndef CRC32_POLY_LE
+#define CRC32_POLY_LE 0xedb88320
+#endif
+
/*
* Allocate memory for LZMA2 decoder. xz_dec_lzma2_reset() must be used
* before calling xz_dec_lzma2_run().
TEST_GEN_PROGS := copy_first_unaligned alignment_handler
+top_srcdir = ../../../../..
include ../../lib.mk
$(TEST_GEN_PROGS): ../harness.c ../utils.c
CFLAGS += -O2
+top_srcdir = ../../../../..
include ../../lib.mk
$(TEST_GEN_PROGS): ../harness.c
$(TEST_PROGS): ../harness.c ../utils.c
+top_srcdir = ../../../../..
include ../../lib.mk
clean:
EXTRA_SOURCES := validate.c ../harness.c stubs.S
+top_srcdir = ../../../../..
include ../../lib.mk
$(OUTPUT)/copyuser_64_t%: copyuser_64.S $(EXTRA_SOURCES)
dscr_inherit_test dscr_inherit_exec_test dscr_sysfs_test \
dscr_sysfs_thread_test
+top_srcdir = ../../../../..
include ../../lib.mk
$(OUTPUT)/dscr_default_test: LDLIBS += -lpthread
# SPDX-License-Identifier: GPL-2.0
TEST_GEN_PROGS := fpu_syscall fpu_preempt fpu_signal vmx_syscall vmx_preempt vmx_signal vsx_preempt
+top_srcdir = ../../../../..
include ../../lib.mk
$(TEST_GEN_PROGS): ../harness.c
TEST_GEN_PROGS := hugetlb_vs_thp_test subpage_prot prot_sao segv_errors
TEST_GEN_FILES := tempfile
+top_srcdir = ../../../../..
include ../../lib.mk
$(TEST_GEN_PROGS): ../harness.c
TEST_GEN_PROGS := count_instructions l3_bank_test per_event_excludes
EXTRA_SOURCES := ../harness.c event.c lib.c ../utils.c
+top_srcdir = ../../../../..
include ../../lib.mk
all: $(TEST_GEN_PROGS) ebb
lost_exception_test no_handler_test \
cycles_with_mmcr2_test
+top_srcdir = ../../../../../..
include ../../../lib.mk
$(TEST_GEN_PROGS): ../../harness.c ../../utils.c ../event.c ../lib.c \
TEST_GEN_PROGS := load_unaligned_zeropad
+top_srcdir = ../../../../..
include ../../lib.mk
$(TEST_GEN_PROGS): ../harness.c
ptrace-tm-spd-vsx ptrace-tm-spr ptrace-hwbreak ptrace-pkey core-pkey \
perf-hwbreak ptrace-syscall
+top_srcdir = ../../../../..
include ../../lib.mk
all: $(TEST_PROGS)
CFLAGS += -maltivec
signal_tm: CFLAGS += -mhtm
+top_srcdir = ../../../../..
include ../../lib.mk
clean:
ASFLAGS = $(CFLAGS)
+top_srcdir = ../../../../..
include ../../lib.mk
$(TEST_GEN_PROGS): $(EXTRA_SOURCES)
EXTRA_CLEAN = $(OUTPUT)/*.o $(OUTPUT)/check-reversed.S
+top_srcdir = ../../../../..
include ../../lib.mk
$(OUTPUT)/switch_endian_test: $(OUTPUT)/check-reversed.S
CFLAGS += -I../../../../../usr/include
+top_srcdir = ../../../../..
include ../../lib.mk
$(TEST_GEN_PROGS): ../harness.c
tm-vmxcopy tm-fork tm-tar tm-tmspr tm-vmx-unavail tm-unavailable tm-trap \
$(SIGNAL_CONTEXT_CHK_TESTS) tm-sigreturn
+top_srcdir = ../../../../..
include ../../lib.mk
$(TEST_GEN_PROGS): ../harness.c ../utils.c
CFLAGS += -m64
+top_srcdir = ../../../../..
include ../../lib.mk
$(TEST_GEN_PROGS): ../harness.c
projects / linux-2.6-block.git / commitdiff