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" Vim syntax file
" Language: Berkeley Packet Filter
" Maintainer: Daniel Borkmann
" Latest Revision: 08/16/2011
"
" In order to make syntax highlighting for BPFs work in vim, copy this file
" to ~/.vim/syntax/ and activate it in vim by entering:
"
"    :set syntax=bpf
"
" If you want to automatically load the BPF syntax highlighting for *.bpf 
" files create the ~/.vim/filetype.vim with the following content:
"
"    my filetype file
"    if exists("did_load_filetypes")
"      finish
"    endif
"
"    augroup filetypedetect
"      au! BufRead,BufNewFile *.bpf  setfiletype bpf
"    augroup END
"

if exists("b:current_syntax")
  finish
endif

syn keyword bpfTodo contained TODO FIXME XXX NOTE
syn keyword bpfKeywords ldb ldh ld ldi ldx ldxi ldxb st stx jmp ja jeq jneq jne skipwhite
syn keyword bpfKeywords jlt jle jgt jge jset add sub mul div mod neg and or xor skipwhite
syn keyword bpfKeywords lsh rsh ret tax txa skipwhite

syn match bpfLabel /[a-zA-Z0-9_]\+/
syn match bpfSpChar /[:,#\[\]\(\)+*&]\?/ contains=bpfNumber,bpfLabel
syn match bpfNumber /\(0[xX]\x\+\|\d\+\)/
syn match bpfComment ";.*$" contains=bpfTodo

hi def link bpfTodo Todo
hi def link bpfComment Comment
hi def link bpfKeywords Keyword
hi def link bpfLabel Type
hi def link bpfNumber Number
hi def link bpfSpChar Special

let b:current_syntax = "bpf"
ap the first physical page into the EFI pagetables
Commit: 129766708 ("x86/efi: Only map RAM into EFI page tables if in mixed-mode") stopped creating 1:1 mappings for all RAM, when running in native 64-bit mode. It turns out though that there are 64-bit EFI implementations in the wild (this particular problem has been reported on a Lenovo Yoga 710-11IKB), which still make use of the first physical page for their own private use, even though they explicitly mark it EFI_CONVENTIONAL_MEMORY in the memory map. In case there is no mapping for this particular frame in the EFI pagetables, as soon as firmware tries to make use of it, a triple fault occurs and the system reboots (in case of the Yoga 710-11IKB this is very early during bootup). Fix that by always mapping the first page of physical memory into the EFI pagetables. We're free to hand this page to the BIOS, as trim_bios_range() will reserve the first page and isolate it away from memory allocators anyway. Note that just reverting 129766708 alone is not enough on v4.9-rc1+ to fix the regression on affected hardware, as this commit: ab72a27da ("x86/efi: Consolidate region mapping logic") later made the first physical frame not to be mapped anyway. Reported-by: Hanka Pavlikova <hanka@ucw.cz> Signed-off-by: Jiri Kosina <jkosina@suse.cz> Signed-off-by: Matt Fleming <matt@codeblueprint.co.uk> Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Borislav Petkov <bp@suse.de> Cc: Laura Abbott <labbott@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Vojtech Pavlik <vojtech@ucw.cz> Cc: Waiman Long <waiman.long@hpe.com> Cc: linux-efi@vger.kernel.org Cc: stable@kernel.org # v4.8+ Fixes: 129766708 ("x86/efi: Only map RAM into EFI page tables if in mixed-mode") Link: http://lkml.kernel.org/r/20170127222552.22336-1-matt@codeblueprint.co.uk [ Tidied up the changelog and the comment. ] Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'tools/perf/util/drv_configs.c')