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{
  "commit": "3d9683cf3bfb6d4e4605a153958dfca7e18b52f2",
  "tree": "41da7cef48d4c0fa9c0d42854d1d74c6090c8875",
  "parents": [
    "4d66623cfba0949b2f0d669bd2ae732124c99ded"
  ],
  "author": {
    "name": "Masahiro Yamada",
    "email": "yamada.masahiro@socionext.com",
    "time": "Mon Mar 18 18:08:12 2019 +0900"
  },
  "committer": {
    "name": "Paolo Bonzini",
    "email": "pbonzini@redhat.com",
    "time": "Thu Mar 28 17:27:42 2019 +0100"
  },
  "message": "KVM: export \u003clinux/kvm_para.h\u003e and \u003casm/kvm_para.h\u003e iif KVM is supported\n\nI do not see any consistency about headers_install of \u003clinux/kvm_para.h\u003e\nand \u003casm/kvm_para.h\u003e.\n\nAccording to my analysis of Linux 5.1-rc1, there are 3 groups:\n\n [1] Both \u003clinux/kvm_para.h\u003e and \u003casm/kvm_para.h\u003e are exported\n\n    alpha, arm, hexagon, mips, powerpc, s390, sparc, x86\n\n [2] \u003casm/kvm_para.h\u003e is exported, but \u003clinux/kvm_para.h\u003e is not\n\n    arc, arm64, c6x, h8300, ia64, m68k, microblaze, nios2, openrisc,\n    parisc, sh, unicore32, xtensa\n\n [3] Neither \u003clinux/kvm_para.h\u003e nor \u003casm/kvm_para.h\u003e is exported\n\n    csky, nds32, riscv\n\nThis does not match to the actual KVM support. At least, [2] is\nhalf-baked.\n\nNor do arch maintainers look like they care about this. For example,\ncommit 0add53713b1c (\"microblaze: Add missing kvm_para.h to Kbuild\")\nexported \u003casm/kvm_para.h\u003e to user-space in order to fix an in-kernel\nbuild error.\n\nWe have two ways to make this consistent:\n\n [A] export both \u003clinux/kvm_para.h\u003e and \u003casm/kvm_para.h\u003e for all\n     architectures, irrespective of the KVM support\n\n [B] Match the header export of \u003clinux/kvm_para.h\u003e and \u003casm/kvm_para.h\u003e\n     to the KVM support\n\nMy first attempt was [A] because the code looks cleaner, but Paolo\nsuggested [B].\n\nSo, this commit goes with [B].\n\nFor most architectures, \u003casm/kvm_para.h\u003e was moved to the kernel-space.\nI changed include/uapi/linux/Kbuild so that it checks generated\nasm/kvm_para.h as well as check-in ones.\n\nAfter this commit, there will be two groups:\n\n [1] Both \u003clinux/kvm_para.h\u003e and \u003casm/kvm_para.h\u003e are exported\n\n    arm, arm64, mips, powerpc, s390, x86\n\n [2] Neither \u003clinux/kvm_para.h\u003e nor \u003casm/kvm_para.h\u003e is exported\n\n    alpha, arc, c6x, csky, h8300, hexagon, ia64, m68k, microblaze,\n    nds32, nios2, openrisc, parisc, riscv, sh, sparc, unicore32, xtensa\n\nSigned-off-by: Masahiro Yamada \u003cyamada.masahiro@socionext.com\u003e\nAcked-by: Cornelia Huck \u003ccohuck@redhat.com\u003e\nSigned-off-by: Paolo Bonzini \u003cpbonzini@redhat.com\u003e\n",
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