)]}' { "log": [ { "commit": "b3266bd6ff52efb9e57c7fbfff4c8f7363dfaab3", "tree": "66f16447ee345e21372fe0fe35b987b16c8061c0", "parents": [ "433de739bbc22a5b2c87602116566ce27e3b4cab" ], "author": { "name": "Jarkko Sakkinen", "email": "jarkko.sakkinen@intel.com", "time": "Tue May 08 21:22:25 2012 +0300" }, "committer": { "name": "H. Peter Anvin", "email": "hpa@linux.intel.com", "time": "Tue May 08 11:41:48 2012 -0700" }, "message": "x86, realmode: realmode.bin infrastructure\n\nCreate realmode.bin and realmode.relocs files. Piggy\npack them into relocatable object that will be included\ninto .init.data section of the main kernel image.\n\nThe first file includes binary image of the real-mode code.\nThe latter file includes all relocations. The layout of the\nbinary image is specified in realmode.lds.S. The makefile\ngenerates pa_ prefixed symbols for each exported global.\nThese are used in 32-bit code and in realmode header to\ndefine symbols that need to be relocated.\n\nSigned-off-by: Jarkko Sakkinen \u003cjarkko.sakkinen@intel.com\u003e\nLink: http://lkml.kernel.org/r/1336501366-28617-3-git-send-email-jarkko.sakkinen@intel.com\nOriginally-by: H. Peter Anvin \u003chpa@linux.intel.com\u003e\nSigned-off-by: H. Peter Anvin \u003chpa@linux.intel.com\u003e\n" }, { "commit": "0a14842f5a3c0e88a1e59fac5c3025db39721f74", "tree": "4d0832c4c9ced2503e2d899eb56952f87511d4ab", "parents": [ "b678027cb77b079bc8e5b94172995d173bdb494b" ], "author": { "name": "Eric Dumazet", "email": "eric.dumazet@gmail.com", "time": "Wed Apr 20 09:27:32 2011 +0000" }, "committer": { "name": "David S. Miller", "email": "davem@davemloft.net", "time": "Wed Apr 27 23:05:08 2011 -0700" }, "message": "net: filter: Just In Time compiler for x86-64\n\nIn order to speedup packet filtering, here is an implementation of a\nJIT compiler for x86_64\n\nIt is disabled by default, and must be enabled by the admin.\n\necho 1 \u003e/proc/sys/net/core/bpf_jit_enable\n\nIt uses module_alloc() and module_free() to get memory in the 2GB text\nkernel range since we call helpers functions from the generated code.\n\nEAX : BPF A accumulator\nEBX : BPF X accumulator\nRDI : pointer to skb (first argument given to JIT function)\nRBP : frame pointer (even if CONFIG_FRAME_POINTER\u003dn)\nr9d : skb-\u003elen - skb-\u003edata_len (headlen)\nr8 : skb-\u003edata\n\nTo get a trace of generated code, use :\n\necho 2 \u003e/proc/sys/net/core/bpf_jit_enable\n\nExample of generated code :\n\n# tcpdump -p -n -s 0 -i eth1 host 192.168.20.0/24\n\nflen\u003d18 proglen\u003d147 pass\u003d3 image\u003dffffffffa00b5000\nJIT code: ffffffffa00b5000: 55 48 89 e5 48 83 ec 60 48 89 5d f8 44 8b 4f 60\nJIT code: ffffffffa00b5010: 44 2b 4f 64 4c 8b 87 b8 00 00 00 be 0c 00 00 00\nJIT code: ffffffffa00b5020: e8 24 7b f7 e0 3d 00 08 00 00 75 28 be 1a 00 00\nJIT code: ffffffffa00b5030: 00 e8 fe 7a f7 e0 24 00 3d 00 14 a8 c0 74 49 be\nJIT code: ffffffffa00b5040: 1e 00 00 00 e8 eb 7a f7 e0 24 00 3d 00 14 a8 c0\nJIT code: ffffffffa00b5050: 74 36 eb 3b 3d 06 08 00 00 74 07 3d 35 80 00 00\nJIT code: ffffffffa00b5060: 75 2d be 1c 00 00 00 e8 c8 7a f7 e0 24 00 3d 00\nJIT code: ffffffffa00b5070: 14 a8 c0 74 13 be 26 00 00 00 e8 b5 7a f7 e0 24\nJIT code: ffffffffa00b5080: 00 3d 00 14 a8 c0 75 07 b8 ff ff 00 00 eb 02 31\nJIT code: ffffffffa00b5090: c0 c9 c3\n\nBPF program is 144 bytes long, so native program is almost same size ;)\n\n(000) ldh [12]\n(001) jeq #0x800 jt 2 jf 8\n(002) ld [26]\n(003) and #0xffffff00\n(004) jeq #0xc0a81400 jt 16 jf 5\n(005) ld [30]\n(006) and #0xffffff00\n(007) jeq #0xc0a81400 jt 16 jf 17\n(008) jeq #0x806 jt 10 jf 9\n(009) jeq #0x8035 jt 10 jf 17\n(010) ld [28]\n(011) and #0xffffff00\n(012) jeq #0xc0a81400 jt 16 jf 13\n(013) ld [38]\n(014) and #0xffffff00\n(015) jeq #0xc0a81400 jt 16 jf 17\n(016) ret #65535\n(017) ret #0\n\nSigned-off-by: Eric Dumazet \u003ceric.dumazet@gmail.com\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@infradead.org\u003e\nCc: Ben Hutchings \u003cbhutchings@solarflare.com\u003e\nCc: Hagen Paul Pfeifer \u003chagen@jauu.net\u003e\nSigned-off-by: David S. Miller \u003cdavem@davemloft.net\u003e\n" }, { "commit": "3adbb7f4a32dd34993ebe3829c69694f0c5fc85b", "tree": "6305cb00a8dc16fb9e9239df8070d4d05dde05ba", "parents": [ "12ba8d1e9262ce81a695795410bd9ee5c9407ba1" ], "author": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Sat Oct 16 10:11:22 2010 +0200" }, "committer": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Wed Oct 27 14:30:01 2010 +0200" }, "message": "x86: Add platform directory\n\nx86 has finally arrived in the embedded nightmare and will rapidly\ngrow SoC platform support in various flavours. So we need a place for\nthe platform support files. That also allows us to clean up the\ndumpground which arch/x86/kernel has become over time.\n\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\n" }, { "commit": "d1f0ae5e2e45e74cff4c3bdefb0fc77608cdfeec", "tree": "09993cf52b9095aefe2627a37d4a31d78e658b54", "parents": [ "3ee8da87ba6151ec91b2b8bbd27633bb248ea0d5" ], "author": { "name": "Sam Ravnborg", "email": "sam@ravnborg.org", "time": "Wed Apr 15 21:34:55 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Apr 16 18:09:02 2009 +0200" }, "message": "x86: standardize Kbuild rules\n\nIntroducing this Kbuild file allow us to:\n\n make arch/x86/\n\nAnd thus building all the core part of x86.\n\nSigned-off-by: Sam Ravnborg \u003csam@ravnborg.org\u003e\nCc: Jaswinder Singh Rajput \u003cjaswinder@kernel.org\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" } ] }