#ifndef __GENELF_H__ #define __GENELF_H__ /* genelf.c */ int jit_write_elf(int fd, uint64_t code_addr, const char *sym, const void *code, int csize, void *debug, int nr_debug_entries, void *unwinding, uint64_t unwinding_header_size, uint64_t unwinding_size); #ifdef HAVE_DWARF_SUPPORT /* genelf_debug.c */ int jit_add_debug_info(Elf *e, uint64_t code_addr, void *debug, int nr_debug_entries); #endif #if defined(__arm__) #define GEN_ELF_ARCH EM_ARM #define GEN_ELF_CLASS ELFCLASS32 #elif defined(__aarch64__) #define GEN_ELF_ARCH EM_AARCH64 #define GEN_ELF_CLASS ELFCLASS64 #elif defined(__x86_64__) #define GEN_ELF_ARCH EM_X86_64 #define GEN_ELF_CLASS ELFCLASS64 #elif defined(__i386__) #define GEN_ELF_ARCH EM_386 #define GEN_ELF_CLASS ELFCLASS32 #elif defined(__powerpc64__) #define GEN_ELF_ARCH EM_PPC64 #define GEN_ELF_CLASS ELFCLASS64 #elif defined(__powerpc__) #define GEN_ELF_ARCH EM_PPC #define GEN_ELF_CLASS ELFCLASS32 #else #error "unsupported architecture" #endif #if __BYTE_ORDER == __BIG_ENDIAN #define GEN_ELF_ENDIAN ELFDATA2MSB #else #define GEN_ELF_ENDIAN ELFDATA2LSB #endif #if GEN_ELF_CLASS == ELFCLASS64 #define elf_newehdr elf64_newehdr #define elf_getshdr elf64_getshdr #define Elf_Ehdr Elf64_Ehdr #define Elf_Shdr Elf64_Shdr #define Elf_Sym Elf64_Sym #define ELF_ST_TYPE(a) ELF64_ST_TYPE(a) #define ELF_ST_BIND(a) ELF64_ST_BIND(a) #define ELF_ST_VIS(a) ELF64_ST_VISIBILITY(a) #else #define elf_newehdr elf32_newehdr #define elf_getshdr elf32_getshdr #define Elf_Ehdr Elf32_Ehdr #define Elf_Shdr Elf32_Shdr #define Elf_Sym Elf32_Sym #define ELF_ST_TYPE(a) ELF32_ST_TYPE(a) #define ELF_ST_BIND(a) ELF32_ST_BIND(a) #define ELF_ST_VIS(a) ELF32_ST_VISIBILITY(a) #endif /* The .text section is directly after the ELF header */ #define GEN_ELF_TEXT_OFFSET sizeof(Elf_Ehdr) #endif .h?id=0becc0ae5b42828785b589f686725ff5bc3b9b25'>treecommitdiff
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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 /include/trace/events/kvm.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 'include/trace/events/kvm.h')