...
 
Commits (435)
......@@ -33,6 +33,7 @@
*.lzo
*.patch
*.gcno
*.ll
modules.builtin
Module.symvers
*.dwo
......
......@@ -34,7 +34,9 @@ Currently, these files are in /proc/sys/fs:
- overflowgid
- pipe-user-pages-hard
- pipe-user-pages-soft
- protected_fifos
- protected_hardlinks
- protected_regular
- protected_symlinks
- suid_dumpable
- super-max
......@@ -182,6 +184,24 @@ applied.
==============================================================
protected_fifos:
The intent of this protection is to avoid unintentional writes to
an attacker-controlled FIFO, where a program expected to create a regular
file.
When set to "0", writing to FIFOs is unrestricted.
When set to "1" don't allow O_CREAT open on FIFOs that we don't own
in world writable sticky directories, unless they are owned by the
owner of the directory.
When set to "2" it also applies to group writable sticky directories.
This protection is based on the restrictions in Openwall.
==============================================================
protected_hardlinks:
A long-standing class of security issues is the hardlink-based
......@@ -202,6 +222,22 @@ This protection is based on the restrictions in Openwall and grsecurity.
==============================================================
protected_regular:
This protection is similar to protected_fifos, but it
avoids writes to an attacker-controlled regular file, where a program
expected to create one.
When set to "0", writing to regular files is unrestricted.
When set to "1" don't allow O_CREAT open on regular files that we
don't own in world writable sticky directories, unless they are
owned by the owner of the directory.
When set to "2" it also applies to group writable sticky directories.
==============================================================
protected_symlinks:
A long-standing class of security issues is the symlink-based
......
......@@ -6,31 +6,6 @@
# 3) Generate asm-offsets.h (may need bounds.h and timeconst.h)
# 4) Check for missing system calls
# Default sed regexp - multiline due to syntax constraints
define sed-y
"/^->/{s:->#\(.*\):/* \1 */:; \
s:^->\([^ ]*\) [\$$#]*\([-0-9]*\) \(.*\):#define \1 \2 /* \3 */:; \
s:^->\([^ ]*\) [\$$#]*\([^ ]*\) \(.*\):#define \1 \2 /* \3 */:; \
s:->::; p;}"
endef
# Use filechk to avoid rebuilds when a header changes, but the resulting file
# does not
define filechk_offsets
(set -e; \
echo "#ifndef $2"; \
echo "#define $2"; \
echo "/*"; \
echo " * DO NOT MODIFY."; \
echo " *"; \
echo " * This file was generated by Kbuild"; \
echo " */"; \
echo ""; \
sed -ne $(sed-y); \
echo ""; \
echo "#endif" )
endef
#####
# 1) Generate bounds.h
......
......@@ -10135,6 +10135,7 @@ F: arch/alpha/kernel/srm_env.c
STABLE BRANCH
M: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
M: Sasha Levin <sashal@kernel.org>
L: stable@vger.kernel.org
S: Supported
F: Documentation/stable_kernel_rules.txt
......
VERSION = 4
PATCHLEVEL = 4
SUBLEVEL = 162
SUBLEVEL = 166
EXTRAVERSION =
NAME = Blurry Fish Butt
......@@ -303,14 +303,9 @@ CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \
HOSTCC = gcc
HOSTCXX = g++
HOSTCFLAGS = -Wall -Wmissing-prototypes -Wstrict-prototypes -O2 -fomit-frame-pointer -std=gnu89
HOSTCFLAGS := -Wall -Wmissing-prototypes -Wstrict-prototypes -O2 -fomit-frame-pointer -std=gnu89
HOSTCXXFLAGS = -O2
ifeq ($(shell $(HOSTCC) -v 2>&1 | grep -c "clang version"), 1)
HOSTCFLAGS += -Wno-unused-value -Wno-unused-parameter \
-Wno-missing-field-initializers -fno-delete-null-pointer-checks
endif
# Decide whether to build built-in, modular, or both.
# Normally, just do built-in.
......@@ -612,6 +607,22 @@ endif # $(dot-config)
# Defaults to vmlinux, but the arch makefile usually adds further targets
all: vmlinux
ifeq ($(cc-name),clang)
ifneq ($(CROSS_COMPILE),)
CLANG_TARGET := --target=$(notdir $(CROSS_COMPILE:%-=%))
GCC_TOOLCHAIN_DIR := $(dir $(shell which $(LD)))
CLANG_PREFIX := --prefix=$(GCC_TOOLCHAIN_DIR)
GCC_TOOLCHAIN := $(realpath $(GCC_TOOLCHAIN_DIR)/..)
endif
ifneq ($(GCC_TOOLCHAIN),)
CLANG_GCC_TC := --gcc-toolchain=$(GCC_TOOLCHAIN)
endif
KBUILD_CFLAGS += $(CLANG_TARGET) $(CLANG_GCC_TC) $(CLANG_PREFIX)
KBUILD_AFLAGS += $(CLANG_TARGET) $(CLANG_GCC_TC) $(CLANG_PREFIX)
KBUILD_CFLAGS += $(call cc-option, -no-integrated-as)
KBUILD_AFLAGS += $(call cc-option, -no-integrated-as)
endif
# The arch Makefile can set ARCH_{CPP,A,C}FLAGS to override the default
# values of the respective KBUILD_* variables
ARCH_CPPFLAGS :=
......@@ -628,7 +639,7 @@ KBUILD_CFLAGS += $(call cc-disable-warning, int-in-bool-context)
KBUILD_CFLAGS += $(call cc-disable-warning, attribute-alias)
ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
KBUILD_CFLAGS += -Os
KBUILD_CFLAGS += $(call cc-option,-Oz,-Os)
else
ifdef CONFIG_PROFILE_ALL_BRANCHES
KBUILD_CFLAGS += -O2
......@@ -699,10 +710,9 @@ KBUILD_CFLAGS += $(stackp-flag)
ifeq ($(cc-name),clang)
KBUILD_CPPFLAGS += $(call cc-option,-Qunused-arguments,)
KBUILD_CPPFLAGS += $(call cc-option,-Wno-unknown-warning-option,)
KBUILD_CFLAGS += $(call cc-disable-warning, unused-variable)
KBUILD_CFLAGS += $(call cc-disable-warning, format-invalid-specifier)
KBUILD_CFLAGS += $(call cc-disable-warning, gnu)
KBUILD_CFLAGS += $(call cc-disable-warning, address-of-packed-member)
# Quiet clang warning: comparison of unsigned expression < 0 is always false
KBUILD_CFLAGS += $(call cc-disable-warning, tautological-compare)
# CLANG uses a _MergedGlobals as optimization, but this breaks modpost, as the
......@@ -713,11 +723,11 @@ KBUILD_CFLAGS += $(call cc-option, -fcatch-undefined-behavior)
else
# These warnings generated too much noise in a regular build.
# Use make W=1 to enable them (see scripts/Makefile.build)
# Use make W=1 to enable them (see scripts/Makefile.extrawarn)
KBUILD_CFLAGS += $(call cc-disable-warning, unused-but-set-variable)
KBUILD_CFLAGS += $(call cc-disable-warning, unused-const-variable)
endif
KBUILD_CFLAGS += $(call cc-disable-warning, unused-const-variable)
ifdef CONFIG_FRAME_POINTER
KBUILD_CFLAGS += -fno-omit-frame-pointer -fno-optimize-sibling-calls
else
......@@ -1297,6 +1307,8 @@ help:
@echo ' (default: $$(INSTALL_MOD_PATH)/lib/firmware)'
@echo ' dir/ - Build all files in dir and below'
@echo ' dir/file.[ois] - Build specified target only'
@echo ' dir/file.ll - Build the LLVM assembly file'
@echo ' (requires compiler support for LLVM assembly generation)'
@echo ' dir/file.lst - Build specified mixed source/assembly target only'
@echo ' (requires a recent binutils and recent build (System.map))'
@echo ' dir/file.ko - Build module including final link'
......@@ -1472,6 +1484,7 @@ clean: $(clean-dirs)
-o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \
-o -name '*.symtypes' -o -name 'modules.order' \
-o -name modules.builtin -o -name '.tmp_*.o.*' \
-o -name '*.ll' \
-o -name '*.gcno' \) -type f -print | xargs rm -f
# Generate tags for editors
......@@ -1575,6 +1588,8 @@ endif
$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
%.symtypes: %.c prepare scripts FORCE
$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
%.ll: %.c prepare scripts FORCE
$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
# Modules
/: prepare scripts FORCE
......
......@@ -72,9 +72,15 @@
})
#define user_termios_to_kernel_termios(k, u) \
copy_from_user(k, u, sizeof(struct termios))
copy_from_user(k, u, sizeof(struct termios2))
#define kernel_termios_to_user_termios(u, k) \
copy_to_user(u, k, sizeof(struct termios2))
#define user_termios_to_kernel_termios_1(k, u) \
copy_from_user(k, u, sizeof(struct termios))
#define kernel_termios_to_user_termios_1(u, k) \
copy_to_user(u, k, sizeof(struct termios))
#endif /* _ALPHA_TERMIOS_H */
......@@ -31,6 +31,11 @@
#define TCXONC _IO('t', 30)
#define TCFLSH _IO('t', 31)
#define TCGETS2 _IOR('T', 42, struct termios2)
#define TCSETS2 _IOW('T', 43, struct termios2)
#define TCSETSW2 _IOW('T', 44, struct termios2)
#define TCSETSF2 _IOW('T', 45, struct termios2)
#define TIOCSWINSZ _IOW('t', 103, struct winsize)
#define TIOCGWINSZ _IOR('t', 104, struct winsize)
#define TIOCSTART _IO('t', 110) /* start output, like ^Q */
......
......@@ -25,6 +25,19 @@ struct termios {
speed_t c_ospeed; /* output speed */
};
/* Alpha has identical termios and termios2 */
struct termios2 {
tcflag_t c_iflag; /* input mode flags */
tcflag_t c_oflag; /* output mode flags */
tcflag_t c_cflag; /* control mode flags */
tcflag_t c_lflag; /* local mode flags */
cc_t c_cc[NCCS]; /* control characters */
cc_t c_line; /* line discipline (== c_cc[19]) */
speed_t c_ispeed; /* input speed */
speed_t c_ospeed; /* output speed */
};
/* Alpha has matching termios and ktermios */
struct ktermios {
......@@ -147,6 +160,7 @@ struct ktermios {
#define B3000000 00034
#define B3500000 00035
#define B4000000 00036
#define BOTHER 00037
#define CSIZE 00001400
#define CS5 00000000
......@@ -164,6 +178,9 @@ struct ktermios {
#define CMSPAR 010000000000 /* mark or space (stick) parity */
#define CRTSCTS 020000000000 /* flow control */
#define CIBAUD 07600000
#define IBSHIFT 16
/* c_lflag bits */
#define ISIG 0x00000080
#define ICANON 0x00000100
......
......@@ -130,6 +130,17 @@
};
};
&cpu0 {
/* CPU rated to 1GHz, not 1.2GHz as per the default settings */
operating-points = <
/* kHz uV */
166666 850000
400000 900000
800000 1050000
1000000 1200000
>;
};
&esdhc1 {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_esdhc1>;
......
......@@ -577,7 +577,7 @@
};
sata0: sata@29000000 {
compatible = "generic-ahci";
compatible = "qcom,apq8064-ahci", "generic-ahci";
status = "disabled";
reg = <0x29000000 0x180>;
interrupts = <GIC_SPI 209 IRQ_TYPE_NONE>;
......@@ -599,6 +599,7 @@
phys = <&sata_phy0>;
phy-names = "sata-phy";
ports-implemented = <0x1>;
};
/* Temporary fixed regulator */
......
......@@ -461,7 +461,7 @@ void pci_ioremap_set_mem_type(int mem_type)
int pci_ioremap_io(unsigned int offset, phys_addr_t phys_addr)
{
BUG_ON(offset + SZ_64K > IO_SPACE_LIMIT);
BUG_ON(offset + SZ_64K - 1 > IO_SPACE_LIMIT);
return ioremap_page_range(PCI_IO_VIRT_BASE + offset,
PCI_IO_VIRT_BASE + offset + SZ_64K,
......
......@@ -10,7 +10,7 @@
#
# Copyright (C) 1995-2001 by Russell King
LDFLAGS_vmlinux :=-p --no-undefined -X
LDFLAGS_vmlinux :=--no-undefined -X
CPPFLAGS_vmlinux.lds = -DTEXT_OFFSET=$(TEXT_OFFSET)
OBJCOPYFLAGS :=-O binary -R .note -R .note.gnu.build-id -R .comment -S
GZFLAGS :=-9
......@@ -56,6 +56,10 @@ else
TEXT_OFFSET := 0x00080000
endif
ifeq ($(cc-name),clang)
KBUILD_CFLAGS += $(call cc-disable-warning, asm-operand-widths)
endif
# KASAN_SHADOW_OFFSET = VA_START + (1 << (VA_BITS - 3)) - (1 << 61)
# in 32-bit arithmetic
KASAN_SHADOW_OFFSET := $(shell printf "0x%08x00000000\n" $$(( \
......
......@@ -249,7 +249,7 @@
sysmgr: sysmgr@ffd12000 {
compatible = "altr,sys-mgr", "syscon";
reg = <0xffd12000 0x1000>;
reg = <0xffd12000 0x228>;
};
/* Local timer */
......
......@@ -82,7 +82,8 @@ ENTRY(sha1_ce_transform)
ldr dgb, [x0, #16]
/* load sha1_ce_state::finalize */
ldr w4, [x0, #:lo12:sha1_ce_offsetof_finalize]
ldr_l w4, sha1_ce_offsetof_finalize, x4
ldr w4, [x0, x4]
/* load input */
0: ld1 {v8.4s-v11.4s}, [x1], #64
......@@ -132,7 +133,8 @@ CPU_LE( rev32 v11.16b, v11.16b )
* the padding is handled by the C code in that case.
*/
cbz x4, 3f
ldr x4, [x0, #:lo12:sha1_ce_offsetof_count]
ldr_l w4, sha1_ce_offsetof_count, x4
ldr x4, [x0, x4]
movi v9.2d, #0
mov x8, #0x80000000
movi v10.2d, #0
......
......@@ -17,9 +17,6 @@
#include <linux/crypto.h>
#include <linux/module.h>
#define ASM_EXPORT(sym, val) \
asm(".globl " #sym "; .set " #sym ", %0" :: "I"(val));
MODULE_DESCRIPTION("SHA1 secure hash using ARMv8 Crypto Extensions");
MODULE_AUTHOR("Ard Biesheuvel <ard.biesheuvel@linaro.org>");
MODULE_LICENSE("GPL v2");
......@@ -32,6 +29,9 @@ struct sha1_ce_state {
asmlinkage void sha1_ce_transform(struct sha1_ce_state *sst, u8 const *src,
int blocks);
const u32 sha1_ce_offsetof_count = offsetof(struct sha1_ce_state, sst.count);
const u32 sha1_ce_offsetof_finalize = offsetof(struct sha1_ce_state, finalize);
static int sha1_ce_update(struct shash_desc *desc, const u8 *data,
unsigned int len)
{
......@@ -52,11 +52,6 @@ static int sha1_ce_finup(struct shash_desc *desc, const u8 *data,
struct sha1_ce_state *sctx = shash_desc_ctx(desc);
bool finalize = !sctx->sst.count && !(len % SHA1_BLOCK_SIZE);
ASM_EXPORT(sha1_ce_offsetof_count,
offsetof(struct sha1_ce_state, sst.count));
ASM_EXPORT(sha1_ce_offsetof_finalize,
offsetof(struct sha1_ce_state, finalize));
/*
* Allow the asm code to perform the finalization if there is no
* partial data and the input is a round multiple of the block size.
......
......@@ -88,7 +88,8 @@ ENTRY(sha2_ce_transform)
ld1 {dgav.4s, dgbv.4s}, [x0]
/* load sha256_ce_state::finalize */
ldr w4, [x0, #:lo12:sha256_ce_offsetof_finalize]
ldr_l w4, sha256_ce_offsetof_finalize, x4
ldr w4, [x0, x4]
/* load input */
0: ld1 {v16.4s-v19.4s}, [x1], #64
......@@ -136,7 +137,8 @@ CPU_LE( rev32 v19.16b, v19.16b )
* the padding is handled by the C code in that case.
*/
cbz x4, 3f
ldr x4, [x0, #:lo12:sha256_ce_offsetof_count]
ldr_l w4, sha256_ce_offsetof_count, x4
ldr x4, [x0, x4]
movi v17.2d, #0
mov x8, #0x80000000
movi v18.2d, #0
......
......@@ -17,9 +17,6 @@
#include <linux/crypto.h>
#include <linux/module.h>
#define ASM_EXPORT(sym, val) \
asm(".globl " #sym "; .set " #sym ", %0" :: "I"(val));
MODULE_DESCRIPTION("SHA-224/SHA-256 secure hash using ARMv8 Crypto Extensions");
MODULE_AUTHOR("Ard Biesheuvel <ard.biesheuvel@linaro.org>");
MODULE_LICENSE("GPL v2");
......@@ -32,6 +29,11 @@ struct sha256_ce_state {
asmlinkage void sha2_ce_transform(struct sha256_ce_state *sst, u8 const *src,
int blocks);
const u32 sha256_ce_offsetof_count = offsetof(struct sha256_ce_state,
sst.count);
const u32 sha256_ce_offsetof_finalize = offsetof(struct sha256_ce_state,
finalize);
static int sha256_ce_update(struct shash_desc *desc, const u8 *data,
unsigned int len)
{
......@@ -52,11 +54,6 @@ static int sha256_ce_finup(struct shash_desc *desc, const u8 *data,
struct sha256_ce_state *sctx = shash_desc_ctx(desc);
bool finalize = !sctx->sst.count && !(len % SHA256_BLOCK_SIZE);
ASM_EXPORT(sha256_ce_offsetof_count,
offsetof(struct sha256_ce_state, sst.count));
ASM_EXPORT(sha256_ce_offsetof_finalize,
offsetof(struct sha256_ce_state, finalize));
/*
* Allow the asm code to perform the finalization if there is no
* partial data and the input is a round multiple of the block size.
......
......@@ -84,6 +84,7 @@ static inline unsigned long __percpu_##op(void *ptr, \
: [val] "Ir" (val)); \
break; \
default: \
ret = 0; \
BUILD_BUG(); \
} \
\
......@@ -113,6 +114,7 @@ static inline unsigned long __percpu_read(void *ptr, int size)
ret = ACCESS_ONCE(*(u64 *)ptr);
break;
default:
ret = 0;
BUILD_BUG();
}
......@@ -182,6 +184,7 @@ static inline unsigned long __percpu_xchg(void *ptr, unsigned long val,
: [val] "r" (val));
break;
default:
ret = 0;
BUILD_BUG();
}
......
......@@ -107,26 +107,27 @@ int ptep_set_access_flags(struct vm_area_struct *vma,
/* only preserve the access flags and write permission */
pte_val(entry) &= PTE_AF | PTE_WRITE | PTE_DIRTY;
/*
* PTE_RDONLY is cleared by default in the asm below, so set it in
* back if necessary (read-only or clean PTE).
*/
/* set PTE_RDONLY if actual read-only or clean PTE */
if (!pte_write(entry) || !pte_sw_dirty(entry))
pte_val(entry) |= PTE_RDONLY;
/*
* Setting the flags must be done atomically to avoid racing with the
* hardware update of the access/dirty state.
* hardware update of the access/dirty state. The PTE_RDONLY bit must
* be set to the most permissive (lowest value) of *ptep and entry
* (calculated as: a & b == ~(~a | ~b)).
*/
pte_val(entry) ^= PTE_RDONLY;
asm volatile("// ptep_set_access_flags\n"
" prfm pstl1strm, %2\n"
"1: ldxr %0, %2\n"
" and %0, %0, %3 // clear PTE_RDONLY\n"
" eor %0, %0, %3 // negate PTE_RDONLY in *ptep\n"
" orr %0, %0, %4 // set flags\n"
" eor %0, %0, %3 // negate final PTE_RDONLY\n"
" stxr %w1, %0, %2\n"
" cbnz %w1, 1b\n"
: "=&r" (old_pteval), "=&r" (tmp), "+Q" (pte_val(*ptep))
: "L" (~PTE_RDONLY), "r" (pte_val(entry)));
: "L" (PTE_RDONLY), "r" (pte_val(entry)));
flush_tlb_fix_spurious_fault(vma, address);
return 1;
......
......@@ -50,32 +50,10 @@ CFLAGS_traps.o += -mfixed-range=f2-f5,f16-f31
# The gate DSO image is built using a special linker script.
include $(src)/Makefile.gate
# Calculate NR_IRQ = max(IA64_NATIVE_NR_IRQS, XEN_NR_IRQS, ...) based on config
define sed-y
"/^->/{s:^->\([^ ]*\) [\$$#]*\([^ ]*\) \(.*\):#define \1 \2 /* \3 */:; s:->::; p;}"
endef
quiet_cmd_nr_irqs = GEN $@
define cmd_nr_irqs
(set -e; \
echo "#ifndef __ASM_NR_IRQS_H__"; \
echo "#define __ASM_NR_IRQS_H__"; \
echo "/*"; \
echo " * DO NOT MODIFY."; \
echo " *"; \
echo " * This file was generated by Kbuild"; \
echo " *"; \
echo " */"; \
echo ""; \
sed -ne $(sed-y) $<; \
echo ""; \
echo "#endif" ) > $@
endef
# We use internal kbuild rules to avoid the "is up to date" message from make
arch/$(SRCARCH)/kernel/nr-irqs.s: arch/$(SRCARCH)/kernel/nr-irqs.c
$(Q)mkdir -p $(dir $@)
$(call if_changed_dep,cc_s_c)
include/generated/nr-irqs.h: arch/$(SRCARCH)/kernel/nr-irqs.s
$(Q)mkdir -p $(dir $@)
$(call cmd,nr_irqs)
include/generated/nr-irqs.h: arch/$(SRCARCH)/kernel/nr-irqs.s FORCE
$(call filechk,offsets,__ASM_NR_IRQS_H__)
......@@ -67,7 +67,7 @@ void (*cvmx_override_pko_queue_priority) (int pko_port,
void (*cvmx_override_ipd_port_setup) (int ipd_port);
/* Port count per interface */
static int interface_port_count[5];
static int interface_port_count[9];
/* Port last configured link info index by IPD/PKO port */
static cvmx_helper_link_info_t
......
......@@ -147,23 +147,12 @@
* Find irq with highest priority
*/
# open coded PTR_LA t1, cpu_mask_nr_tbl
#if (_MIPS_SZPTR == 32)
#if defined(CONFIG_32BIT) || defined(KBUILD_64BIT_SYM32)
# open coded la t1, cpu_mask_nr_tbl
lui t1, %hi(cpu_mask_nr_tbl)
addiu t1, %lo(cpu_mask_nr_tbl)
#endif
#if (_MIPS_SZPTR == 64)
# open coded dla t1, cpu_mask_nr_tbl
.set push
.set noat
lui t1, %highest(cpu_mask_nr_tbl)
lui AT, %hi(cpu_mask_nr_tbl)
daddiu t1, t1, %higher(cpu_mask_nr_tbl)
daddiu AT, AT, %lo(cpu_mask_nr_tbl)
dsll t1, 32
daddu t1, t1, AT
.set pop
#else
#error GCC `-msym32' option required for 64-bit DECstation builds
#endif
1: lw t2,(t1)
nop
......@@ -214,23 +203,12 @@
* Find irq with highest priority
*/
# open coded PTR_LA t1,asic_mask_nr_tbl
#if (_MIPS_SZPTR == 32)
#if defined(CONFIG_32BIT) || defined(KBUILD_64BIT_SYM32)
# open coded la t1, asic_mask_nr_tbl
lui t1, %hi(asic_mask_nr_tbl)
addiu t1, %lo(asic_mask_nr_tbl)
#endif
#if (_MIPS_SZPTR == 64)
# open coded dla t1, asic_mask_nr_tbl
.set push
.set noat
lui t1, %highest(asic_mask_nr_tbl)
lui AT, %hi(asic_mask_nr_tbl)
daddiu t1, t1, %higher(asic_mask_nr_tbl)
daddiu AT, AT, %lo(asic_mask_nr_tbl)
dsll t1, 32
daddu t1, t1, AT
.set pop
#else
#error GCC `-msym32' option required for 64-bit DECstation builds
#endif
2: lw t2,(t1)
nop
......
......@@ -66,6 +66,8 @@ extern int do_dsemulret(struct pt_regs *xcp);
extern int fpu_emulator_cop1Handler(struct pt_regs *xcp,
struct mips_fpu_struct *ctx, int has_fpu,
void *__user *fault_addr);
void force_fcr31_sig(unsigned long fcr31, void __user *fault_addr,
struct task_struct *tsk);
int process_fpemu_return(int sig, void __user *fault_addr,
unsigned long fcr31);
int mm_isBranchInstr(struct pt_regs *regs, struct mm_decoded_insn dec_insn,
......@@ -92,4 +94,15 @@ static inline void fpu_emulator_init_fpu(void)
set_fpr64(&t->thread.fpu.fpr[i], 0, SIGNALLING_NAN);
}
/*
* Mask the FCSR Cause bits according to the Enable bits, observing
* that Unimplemented is always enabled.
*/
static inline unsigned long mask_fcr31_x(unsigned long fcr31)
{
return fcr31 & (FPU_CSR_UNI_X |
((fcr31 & FPU_CSR_ALL_E) <<
(ffs(FPU_CSR_ALL_X) - ffs(FPU_CSR_ALL_E))));
}
#endif /* _ASM_FPU_EMULATOR_H */
......@@ -9,7 +9,7 @@
#define MIPS_CPU_IRQ_BASE 56
#define LOONGSON_UART_IRQ (MIPS_CPU_IRQ_BASE + 2) /* UART */
#define LOONGSON_HT1_IRQ (MIPS_CPU_IRQ_BASE + 3) /* HT1 */
#define LOONGSON_BRIDGE_IRQ (MIPS_CPU_IRQ_BASE + 3) /* CASCADE */
#define LOONGSON_TIMER_IRQ (MIPS_CPU_IRQ_BASE + 7) /* CPU Timer */
#define LOONGSON_HT1_CFG_BASE loongson_sysconf.ht_control_base
......
......@@ -75,6 +75,22 @@ do { if (cpu_has_rw_llb) { \
} \
} while (0)
/*
* Check FCSR for any unmasked exceptions pending set with `ptrace',
* clear them and send a signal.
*/
#define __sanitize_fcr31(next) \
do { \
unsigned long fcr31 = mask_fcr31_x(next->thread.fpu.fcr31); \
void __user *pc; \
\
if (unlikely(fcr31)) { \
pc = (void __user *)task_pt_regs(next)->cp0_epc; \
next->thread.fpu.fcr31 &= ~fcr31; \
force_fcr31_sig(fcr31, pc, next); \
} \
} while (0)
/*
* For newly created kernel threads switch_to() will return to
* ret_from_kernel_thread, newly created user threads to ret_from_fork.
......@@ -85,6 +101,8 @@ do { if (cpu_has_rw_llb) { \
do { \
__mips_mt_fpaff_switch_to(prev); \
lose_fpu_inatomic(1, prev); \
if (tsk_used_math(next)) \
__sanitize_fcr31(next); \
if (cpu_has_dsp) { \
__save_dsp(prev); \
__restore_dsp(next); \
......
......@@ -846,7 +846,7 @@ struct mm16_r3_format { /* Load from global pointer format */
struct mm16_r5_format { /* Load/store from stack pointer format */
__BITFIELD_FIELD(unsigned int opcode : 6,
__BITFIELD_FIELD(unsigned int rt : 5,
__BITFIELD_FIELD(signed int simmediate : 5,
__BITFIELD_FIELD(unsigned int imm : 5,
__BITFIELD_FIELD(unsigned int : 16, /* Ignored */
;))))
};
......
......@@ -34,6 +34,9 @@ static void crash_shutdown_secondary(void *passed_regs)
if (!cpu_online(cpu))
return;
/* We won't be sent IPIs any more. */
set_cpu_online(cpu, false);
local_irq_disable();
if (!cpumask_test_cpu(cpu, &cpus_in_crash))
crash_save_cpu(regs, cpu);
......
......@@ -95,6 +95,9 @@ machine_kexec(struct kimage *image)
*ptr = (unsigned long) phys_to_virt(*ptr);
}
/* Mark offline BEFORE disabling local irq. */
set_cpu_online(smp_processor_id(), false);
/*
* we do not want to be bothered.
*/
......
......@@ -900,7 +900,7 @@ static inline int mipsr2_find_op_func(struct pt_regs *regs, u32 inst,
* mipsr2_decoder: Decode and emulate a MIPS R2 instruction
* @regs: Process register set
* @inst: Instruction to decode and emulate
* @fcr31: Floating Point Control and Status Register returned
* @fcr31: Floating Point Control and Status Register Cause bits returned
*/
int mipsr2_decoder(struct pt_regs *regs, u32 inst, unsigned long *fcr31)
{
......@@ -1183,13 +1183,13 @@ fpu_emul:
err = fpu_emulator_cop1Handler(regs, &current->thread.fpu, 0,
&fault_addr);
*fcr31 = current->thread.fpu.fcr31;
/*
* We can't allow the emulated instruction to leave any of
* the cause bits set in $fcr31.
* We can't allow the emulated instruction to leave any
* enabled Cause bits set in $fcr31.
*/
current->thread.fpu.fcr31 &= ~FPU_CSR_ALL_X;
*fcr31 = res = mask_fcr31_x(current->thread.fpu.fcr31);
current->thread.fpu.fcr31 &= ~res;
/*
* this is a tricky issue - lose_fpu() uses LL/SC atomics
......
......@@ -207,7 +207,7 @@ static inline int is_ra_save_ins(union mips_instruction *ip, int *poff)
if (ip->mm16_r5_format.rt != 31)
return 0;
*poff = ip->mm16_r5_format.simmediate;
*poff = ip->mm16_r5_format.imm;
*poff = (*poff << 2) / sizeof(ulong);
return 1;
......@@ -341,6 +341,7 @@ static int get_frame_info(struct mips_frame_info *info)
bool is_mmips = IS_ENABLED(CONFIG_CPU_MICROMIPS);
union mips_instruction insn, *ip, *ip_end;
const unsigned int max_insns = 128;
unsigned int last_insn_size = 0;
unsigned int i;
info->pc_offset = -1;
......@@ -352,15 +353,19 @@ static int get_frame_info(struct mips_frame_info *info)
ip_end = (void *)ip + info->func_size;
for (i = 0; i < max_insns && ip < ip_end; i++, ip++) {
for (i = 0; i < max_insns && ip < ip_end; i++) {
ip = (void *)ip + last_insn_size;
if (is_mmips && mm_insn_16bit(ip->halfword[0])) {
insn.halfword[0] = 0;
insn.halfword[1] = ip->halfword[0];
last_insn_size = 2;
} else if (is_mmips) {
insn.halfword[0] = ip->halfword[1];
insn.halfword[1] = ip->halfword[0];
last_insn_size = 4;
} else {
insn.word = ip->word;
last_insn_size = 4;
}
if (is_jump_ins(&insn))
......@@ -382,8 +387,6 @@ static int get_frame_info(struct mips_frame_info *info)
tmp = (ip->halfword[0] >> 1);
info->frame_size = -(signed short)(tmp & 0xf);
}
ip = (void *) &ip->halfword[1];
ip--;
} else
#endif
info->frame_size = - ip->i_format.simmediate;
......
......@@ -79,16 +79,15 @@ void ptrace_disable(struct task_struct *child)
}
/*
* Poke at FCSR according to its mask. Don't set the cause bits as
* this is currently not handled correctly in FP context restoration
* and will cause an oops if a corresponding enable bit is set.
* Poke at FCSR according to its mask. Set the Cause bits even
* if a corresponding Enable bit is set. This will be noticed at
* the time the thread is switched to and SIGFPE thrown accordingly.
*/
static void ptrace_setfcr31(struct task_struct *child, u32 value)
{
u32 fcr31;
u32 mask;
value &= ~FPU_CSR_ALL_X;
fcr31 = child->thread.fpu.fcr31;
mask = boot_cpu_data.fpu_msk31;
child->thread.fpu.fcr31 = (value & ~mask) | (fcr31 & mask);
......
......@@ -706,23 +706,17 @@ asmlinkage void do_ov(struct pt_regs *regs)
exception_exit(prev_state);
}
int process_fpemu_return(int sig, void __user *fault_addr, unsigned long fcr31)
/*
* Send SIGFPE according to FCSR Cause bits, which must have already
* been masked against Enable bits. This is impotant as Inexact can
* happen together with Overflow or Underflow, and `ptrace' can set
* any bits.
*/
void force_fcr31_sig(unsigned long fcr31, void __user *fault_addr,
struct task_struct *tsk)
{
struct siginfo si = { 0 };
struct siginfo si = { .si_addr = fault_addr, .si_signo = SIGFPE };
switch (sig) {
case 0:
return 0;
case SIGFPE:
si.si_addr = fault_addr;
si.si_signo = sig;
/*
* Inexact can happen together with Overflow or Underflow.
* Respect the mask to deliver the correct exception.
*/
fcr31 &= (fcr31 & FPU_CSR_ALL_E) <<
(ffs(FPU_CSR_ALL_X) - ffs(FPU_CSR_ALL_E));
if (fcr31 & FPU_CSR_INV_X)
si.si_code = FPE_FLTINV;
else if (fcr31 & FPU_CSR_DIV_X)
......@@ -735,7 +729,19 @@ int process_fpemu_return(int sig, void __user *fault_addr, unsigned long fcr31)
si.si_code = FPE_FLTRES;
else
si.si_code = __SI_FAULT;
force_sig_info(sig, &si, current);
force_sig_info(SIGFPE, &si, tsk);
}
int process_fpemu_return(int sig, void __user *fault_addr, unsigned long fcr31)
{
struct siginfo si = { 0 };
switch (sig) {
case 0:
return 0;
case SIGFPE:
force_fcr31_sig(fcr31, fault_addr, current);
return 1;
case SIGBUS:
......@@ -798,13 +804,13 @@ static int simulate_fp(struct pt_regs *regs, unsigned int opcode,
/* Run the emulator */
sig = fpu_emulator_cop1Handler(regs, &current->thread.fpu, 1,
&fault_addr);
fcr31 = current->thread.fpu.fcr31;
/*
* We can't allow the emulated instruction to leave any of
* the cause bits set in $fcr31.
* We can't allow the emulated instruction to leave any
* enabled Cause bits set in $fcr31.
*/
current->thread.fpu.fcr31 &= ~FPU_CSR_ALL_X;
fcr31 = mask_fcr31_x(current->thread.fpu.fcr31);
current->thread.fpu.fcr31 &= ~fcr31;
/* Restore the hardware register state */
own_fpu(1);
......@@ -830,7 +836,7 @@ asmlinkage void do_fpe(struct pt_regs *regs, unsigned long fcr31)
goto out;
/* Clear FCSR.Cause before enabling interrupts */
write_32bit_cp1_register(CP1_STATUS, fcr31 & ~FPU_CSR_ALL_X);
write_32bit_cp1_register(CP1_STATUS, fcr31 & ~mask_fcr31_x(fcr31));
local_irq_enable();
die_if_kernel("FP exception in kernel code", regs);
......@@ -852,13 +858,13 @@ asmlinkage void do_fpe(struct pt_regs *regs, unsigned long fcr31)
/* Run the emulator */
sig = fpu_emulator_cop1Handler(regs, &current->thread.fpu, 1,
&fault_addr);
fcr31 = current->thread.fpu.fcr31;
/*
* We can't allow the emulated instruction to leave any of
* the cause bits set in $fcr31.
* We can't allow the emulated instruction to leave any
* enabled Cause bits set in $fcr31.
*/
current->thread.fpu.fcr31 &= ~FPU_CSR_ALL_X;
fcr31 = mask_fcr31_x(current->thread.fpu.fcr31);
current->thread.fpu.fcr31 &= ~fcr31;
/* Restore the hardware register state */
own_fpu(1); /* Using the FPU again. */
......@@ -1431,13 +1437,13 @@ asmlinkage void do_cpu(struct pt_regs *regs)
sig = fpu_emulator_cop1Handler(regs, &current->thread.fpu, 0,
&fault_addr);
fcr31 = current->thread.fpu.fcr31;
/*
* We can't allow the emulated instruction to leave
* any of the cause bits set in $fcr31.
* any enabled Cause bits set in $fcr31.
*/
current->thread.fpu.fcr31 &= ~FPU_CSR_ALL_X;
fcr31 = mask_fcr31_x(current->thread.fpu.fcr31);
current->thread.fpu.fcr31 &= ~fcr31;
/* Send a signal if required. */
if (!process_fpemu_return(sig, fault_addr, fcr31) && !err)
......
......@@ -42,51 +42,8 @@ void mach_irq_dispatch(unsigned int pending)
}
}
static struct irqaction cascade_irqaction = {
.handler = no_action,
.flags = IRQF_NO_SUSPEND,
.name = "cascade",
};
static inline void mask_loongson_irq(struct irq_data *d)
{
clear_c0_status(0x100 << (d->irq - MIPS_CPU_IRQ_BASE));
irq_disable_hazard();
/* Workaround: UART IRQ may deliver to any core */
if (d->irq == LOONGSON_UART_IRQ) {
int cpu = smp_processor_id();
int node_id = cpu_logical_map(cpu) / loongson_sysconf.cores_per_node;
int core_id = cpu_logical_map(cpu) % loongson_sysconf.cores_per_node;
u64 intenclr_addr = smp_group[node_id] |
(u64)(&LOONGSON_INT_ROUTER_INTENCLR);
u64 introuter_lpc_addr = smp_group[node_id] |
(u64)(&LOONGSON_INT_ROUTER_LPC);
*(volatile u32 *)intenclr_addr = 1 << 10;
*(volatile u8 *)introuter_lpc_addr = 0x10 + (1<<core_id);
}
}
static inline void unmask_loongson_irq(struct irq_data *d)
{
/* Workaround: UART IRQ may deliver to any core */
if (d->irq == LOONGSON_UART_IRQ) {
int cpu = smp_processor_id();
int node_id = cpu_logical_map(cpu) / loongson_sysconf.cores_per_node;
int core_id = cpu_logical_map(cpu) % loongson_sysconf.cores_per_node;
u64 intenset_addr = smp_group[node_id] |
(u64)(&LOONGSON_INT_ROUTER_INTENSET);
u64 introuter_lpc_addr = smp_group[node_id] |
(u64)(&LOONGSON_INT_ROUTER_LPC);
*(volatile u32 *)intenset_addr = 1 << 10;
*(volatile u8 *)introuter_lpc_addr = 0x10 + (1<<core_id);
}
set_c0_status(0x100 << (d->irq - MIPS_CPU_IRQ_BASE));
irq_enable_hazard();
}
static inline void mask_loongson_irq(struct irq_data *d) { }
static inline void unmask_loongson_irq(struct irq_data *d) { }
/* For MIPS IRQs which shared by all cores */
static struct irq_chip loongson_irq_chip = {
......@@ -124,12 +81,11 @@ void __init mach_init_irq(void)
mips_cpu_irq_init();
init_i8259_irqs();
irq_set_chip_and_handler(LOONGSON_UART_IRQ,
&loongson_irq_chip, handle_level_irq);
/* setup HT1 irq */
setup_irq(LOONGSON_HT1_IRQ, &cascade_irqaction);
&loongson_irq_chip, handle_percpu_irq);
irq_set_chip_and_handler(LOONGSON_BRIDGE_IRQ,
&loongson_irq_chip, handle_percpu_irq);
set_c0_status(STATUSF_IP2 | STATUSF_IP6);
set_c0_status(STATUSF_IP2 | STATUSF_IP3 | STATUSF_IP6);
}
#ifdef CONFIG_HOTPLUG_CPU
......
......@@ -185,7 +185,7 @@
bv,n 0(%r3)
nop
.word 0 /* checksum (will be patched) */
.word PA(os_hpmc) /* address of handler */
.word 0 /* address of handler */
.word 0 /* length of handler */
.endm
......
......@@ -829,7 +829,8 @@ void __init initialize_ivt(const void *iva)
for (i = 0; i < 8; i++)
*ivap++ = 0;
/* Compute Checksum for HPMC handler */
/* Setup IVA and compute checksum for HPMC handler */
ivap[6] = (u32)__pa(os_hpmc);
length = os_hpmc_size;
ivap[7] = length;
......
......@@ -491,12 +491,8 @@ static void __init map_pages(unsigned long start_vaddr,
pte = pte_mkhuge(pte);
}
if (address >= end_paddr) {
if (force)
if (address >= end_paddr)
break;
else
pte_val(pte) = 0;
}
set_pte(pg_table, pte);
......
......@@ -47,8 +47,10 @@ p_end: .long _end
p_pstack: .long _platform_stack_top
#endif
.weak _zimage_start
.globl _zimage_start
/* Clang appears to require the .weak directive to be after the symbol
* is defined. See https://bugs.llvm.org/show_bug.cgi?id=38921 */
.weak _zimage_start
_zimage_start:
.globl _zimage_start_lib
_zimage_start_lib:
......
......@@ -392,7 +392,14 @@ extern struct bus_type mpic_subsys;
#define MPIC_REGSET_TSI108 MPIC_REGSET(1) /* Tsi108/109 PIC */
/* Get the version of primary MPIC */
#ifdef CONFIG_MPIC
extern u32 fsl_mpic_primary_get_version(void);
#else
static inline u32 fsl_mpic_primary_get_version(void)
{
return 0;
}
#endif
/* Allocate the controller structure and setup the linux irq descs
* for the range if interrupts passed in. No HW initialization is
......
......@@ -5,8 +5,6 @@
#undef TRACE_SYSTEM
#define TRACE_SYSTEM kvm
#define TRACE_INCLUDE_PATH .
#define TRACE_INCLUDE_FILE trace
/*
* Tracepoint for guest mode entry.
......@@ -119,4 +117,10 @@ TRACE_EVENT(kvm_check_requests,
#endif /* _TRACE_KVM_H */
/* This part must be outside protection */
#undef TRACE_INCLUDE_PATH
#undef TRACE_INCLUDE_FILE
#define TRACE_INCLUDE_PATH .
#define TRACE_INCLUDE_FILE trace
#include <trace/define_trace.h>
......@@ -5,8 +5,6 @@
#undef TRACE_SYSTEM
#define TRACE_SYSTEM kvm_booke
#define TRACE_INCLUDE_PATH .
#define TRACE_INCLUDE_FILE trace_booke
#define kvm_trace_symbol_exit \