/* * intel_pt_insn_decoder.h: Intel Processor Trace support * Copyright (c) 2013-2014, Intel Corporation. * * This program is free software; you can redistribute it and/or modify it * under the terms and conditions of the GNU General Public License, * version 2, as published by the Free Software Foundation. * * This program is distributed in the hope it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * */ #ifndef INCLUDE__INTEL_PT_INSN_DECODER_H__ #define INCLUDE__INTEL_PT_INSN_DECODER_H__ #include #include #define INTEL_PT_INSN_DESC_MAX 32 #define INTEL_PT_INSN_BUF_SZ 16 enum intel_pt_insn_op { INTEL_PT_OP_OTHER, INTEL_PT_OP_CALL, INTEL_PT_OP_RET, INTEL_PT_OP_JCC, INTEL_PT_OP_JMP, INTEL_PT_OP_LOOP, INTEL_PT_OP_IRET, INTEL_PT_OP_INT, INTEL_PT_OP_SYSCALL, INTEL_PT_OP_SYSRET, }; enum intel_pt_insn_branch { INTEL_PT_BR_NO_BRANCH, INTEL_PT_BR_INDIRECT, INTEL_PT_BR_CONDITIONAL, INTEL_PT_BR_UNCONDITIONAL, }; struct intel_pt_insn { enum intel_pt_insn_op op; enum intel_pt_insn_branch branch; int length; int32_t rel; unsigned char buf[INTEL_PT_INSN_BUF_SZ]; }; int intel_pt_get_insn(const unsigned char *buf, size_t len, int x86_64, struct intel_pt_insn *intel_pt_insn); const char *intel_pt_insn_name(enum intel_pt_insn_op op); int intel_pt_insn_desc(const struct intel_pt_insn *intel_pt_insn, char *buf, size_t buf_len); int intel_pt_insn_type(enum intel_pt_insn_op op); #endif bc3b9b25'>refslogtreecommitdiff
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authorThomas Gleixner <tglx@linutronix.de>2017-01-31 09:37:34 +0100
committerThomas Gleixner <tglx@linutronix.de>2017-01-31 21:47:58 +0100
commit0becc0ae5b42828785b589f686725ff5bc3b9b25 (patch)
treebe6d0e1f37c38ed0a7dd5da2d4b1e93f0fb43101 /fs/xfs/libxfs/xfs_cksum.h
parent24c2503255d35c269b67162c397a1a1c1e02f6ce (diff)
x86/mce: Make timer handling more robust
Erik reported that on a preproduction hardware a CMCI storm triggers the BUG_ON in add_timer_on(). The reason is that the per CPU MCE timer is started by the CMCI logic before the MCE CPU hotplug callback starts the timer with add_timer_on(). So the timer is already queued which triggers the BUG. Using add_timer_on() is pretty pointless in this code because the timer is strictlty per CPU, initialized as pinned and all operations which arm the timer happen on the CPU to which the timer belongs. Simplify the whole machinery by using mod_timer() instead of add_timer_on() which avoids the problem because mod_timer() can handle already queued timers. Use __start_timer() everywhere so the earliest armed expiry time is preserved. Reported-by: Erik Veijola <erik.veijola@intel.com> Tested-by: Borislav Petkov <bp@alien8.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Borislav Petkov <bp@alien8.de> Cc: Tony Luck <tony.luck@intel.com> Link: http://lkml.kernel.org/r/alpine.DEB.2.20.1701310936080.3457@nanos Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'fs/xfs/libxfs/xfs_cksum.h')