7515a820d6
Changes in 4.9.169 x86/power: Fix some ordering bugs in __restore_processor_context() x86/power/64: Use struct desc_ptr for the IDT in struct saved_context x86/power/32: Move SYSENTER MSR restoration to fix_processor_context() x86/power: Make restore_processor_context() sane powerpc/tm: Limit TM code inside PPC_TRANSACTIONAL_MEM kbuild: clang: choose GCC_TOOLCHAIN_DIR not on LD x86: vdso: Use $LD instead of $CC to link x86/vdso: Drop implicit common-page-size linker flag lib/string.c: implement a basic bcmp powerpc: Fix invalid use of register expressions powerpc/64s: Add barrier_nospec powerpc/64s: Add support for ori barrier_nospec patching powerpc: Avoid code patching freed init sections powerpc/64s: Patch barrier_nospec in modules powerpc/64s: Enable barrier_nospec based on firmware settings powerpc: Use barrier_nospec in copy_from_user() powerpc/64: Use barrier_nospec in syscall entry powerpc/64s: Enhance the information in cpu_show_spectre_v1() powerpc64s: Show ori31 availability in spectre_v1 sysfs file not v2 powerpc/64: Disable the speculation barrier from the command line powerpc/64: Make stf barrier PPC_BOOK3S_64 specific. powerpc/64: Add CONFIG_PPC_BARRIER_NOSPEC powerpc/64: Call setup_barrier_nospec() from setup_arch() powerpc/64: Make meltdown reporting Book3S 64 specific powerpc/fsl: Add barrier_nospec implementation for NXP PowerPC Book3E powerpc/fsl: Sanitize the syscall table for NXP PowerPC 32 bit platforms powerpc/asm: Add a patch_site macro & helpers for patching instructions powerpc/64s: Add new security feature flags for count cache flush powerpc/64s: Add support for software count cache flush powerpc/pseries: Query hypervisor for count cache flush settings powerpc/powernv: Query firmware for count cache flush settings powerpc/fsl: Add infrastructure to fixup branch predictor flush powerpc/fsl: Add macro to flush the branch predictor powerpc/fsl: Fix spectre_v2 mitigations reporting powerpc/fsl: Emulate SPRN_BUCSR register powerpc/fsl: Add nospectre_v2 command line argument powerpc/fsl: Flush the branch predictor at each kernel entry (64bit) powerpc/fsl: Flush the branch predictor at each kernel entry (32 bit) powerpc/fsl: Flush branch predictor when entering KVM powerpc/fsl: Enable runtime patching if nospectre_v2 boot arg is used powerpc/fsl: Update Spectre v2 reporting powerpc/fsl: Fixed warning: orphan section `__btb_flush_fixup' powerpc/fsl: Fix the flush of branch predictor. powerpc/security: Fix spectre_v2 reporting arm64: kaslr: Reserve size of ARM64_MEMSTART_ALIGN in linear region tty: mark Siemens R3964 line discipline as BROKEN tty: ldisc: add sysctl to prevent autoloading of ldiscs ipv6: Fix dangling pointer when ipv6 fragment ipv6: sit: reset ip header pointer in ipip6_rcv kcm: switch order of device registration to fix a crash net: rds: force to destroy connection if t_sock is NULL in rds_tcp_kill_sock(). openvswitch: fix flow actions reallocation qmi_wwan: add Olicard 600 sctp: initialize _pad of sockaddr_in before copying to user memory tcp: Ensure DCTCP reacts to losses vrf: check accept_source_route on the original netdevice bnxt_en: Reset device on RX buffer errors. bnxt_en: Improve RX consumer index validity check. net/mlx5e: Add a lock on tir list netns: provide pure entropy for net_hash_mix() net: ethtool: not call vzalloc for zero sized memory request ip6_tunnel: Match to ARPHRD_TUNNEL6 for dev type ALSA: seq: Fix OOB-reads from strlcpy parisc: Detect QEMU earlier in boot process include/linux/bitrev.h: fix constant bitrev ASoC: fsl_esai: fix channel swap issue when stream starts Btrfs: do not allow trimming when a fs is mounted with the nologreplay option block: do not leak memory in bio_copy_user_iov() genirq: Respect IRQCHIP_SKIP_SET_WAKE in irq_chip_set_wake_parent() virtio: Honour 'may_reduce_num' in vring_create_virtqueue ARM: dts: at91: Fix typo in ISC_D0 on PC9 arm64: futex: Fix FUTEX_WAKE_OP atomic ops with non-zero result value parisc: Use cr16 interval timers unconditionally on qemu xen: Prevent buffer overflow in privcmd ioctl sched/fair: Do not re-read ->h_load_next during hierarchical load calculation xtensa: fix return_address PCI: Add function 1 DMA alias quirk for Marvell 9170 SATA controller Linux 4.9.169 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
93 lines
2.8 KiB
C
93 lines
2.8 KiB
C
/* Kernel module help for powerpc.
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Copyright (C) 2001, 2003 Rusty Russell IBM Corporation.
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Copyright (C) 2008 Freescale Semiconductor, Inc.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <linux/elf.h>
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#include <linux/moduleloader.h>
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#include <linux/err.h>
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#include <linux/vmalloc.h>
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#include <linux/bug.h>
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#include <asm/module.h>
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#include <asm/uaccess.h>
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#include <asm/firmware.h>
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#include <linux/sort.h>
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#include <asm/setup.h>
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static LIST_HEAD(module_bug_list);
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static const Elf_Shdr *find_section(const Elf_Ehdr *hdr,
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const Elf_Shdr *sechdrs,
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const char *name)
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{
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char *secstrings;
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unsigned int i;
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secstrings = (char *)hdr + sechdrs[hdr->e_shstrndx].sh_offset;
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for (i = 1; i < hdr->e_shnum; i++)
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if (strcmp(secstrings+sechdrs[i].sh_name, name) == 0)
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return &sechdrs[i];
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return NULL;
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}
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int module_finalize(const Elf_Ehdr *hdr,
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const Elf_Shdr *sechdrs, struct module *me)
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{
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const Elf_Shdr *sect;
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int rc;
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rc = module_finalize_ftrace(me, sechdrs);
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if (rc)
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return rc;
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/* Apply feature fixups */
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sect = find_section(hdr, sechdrs, "__ftr_fixup");
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if (sect != NULL)
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do_feature_fixups(cur_cpu_spec->cpu_features,
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(void *)sect->sh_addr,
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(void *)sect->sh_addr + sect->sh_size);
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sect = find_section(hdr, sechdrs, "__mmu_ftr_fixup");
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if (sect != NULL)
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do_feature_fixups(cur_cpu_spec->mmu_features,
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(void *)sect->sh_addr,
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(void *)sect->sh_addr + sect->sh_size);
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#ifdef CONFIG_PPC64
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sect = find_section(hdr, sechdrs, "__fw_ftr_fixup");
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if (sect != NULL)
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do_feature_fixups(powerpc_firmware_features,
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(void *)sect->sh_addr,
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(void *)sect->sh_addr + sect->sh_size);
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#endif /* CONFIG_PPC64 */
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#ifdef CONFIG_PPC_BARRIER_NOSPEC
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sect = find_section(hdr, sechdrs, "__spec_barrier_fixup");
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if (sect != NULL)
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do_barrier_nospec_fixups_range(barrier_nospec_enabled,
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(void *)sect->sh_addr,
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(void *)sect->sh_addr + sect->sh_size);
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#endif /* CONFIG_PPC_BARRIER_NOSPEC */
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sect = find_section(hdr, sechdrs, "__lwsync_fixup");
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if (sect != NULL)
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do_lwsync_fixups(cur_cpu_spec->cpu_features,
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(void *)sect->sh_addr,
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(void *)sect->sh_addr + sect->sh_size);
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return 0;
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}
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