)]}'
{
  "log": [
    {
      "commit": "98bcef56cadb4da138e2c1a2a0790f372382b236",
      "tree": "a33c72c26d6075e3bab1c27791ccbabac7ebd0af",
      "parents": [
        "eaeb16883bd6aa2d6b6b61b825c0d2b0dc793f60"
      ],
      "author": {
        "name": "mark gross",
        "email": "mgross@linux.intel.com",
        "time": "Sat Feb 23 15:23:35 2008 -0800"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@woody.linux-foundation.org",
        "time": "Sat Feb 23 17:12:14 2008 -0800"
      },
      "message": "copyright owner and author clean up for intel iommu and related files\n\nThe following is a clean up and correction of the copyright holding\nentities for the files associated with the intel iommu code.\n\nSigned-off-by: \u003cmgross@linux.intel.com\u003e\nCc: Greg KH \u003cgreg@kroah.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "f661197e0a95ec7305e1e790d95b72a74a1c4a0f",
      "tree": "a6916d877a3d9db9bc658758bd347d4f436f6d59",
      "parents": [
        "b1ed88b47f5e18c6efb8041275c16eeead5377df"
      ],
      "author": {
        "name": "David Miller",
        "email": "davem@davemloft.net",
        "time": "Wed Feb 06 01:36:23 2008 -0800"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@woody.linux-foundation.org",
        "time": "Wed Feb 06 10:41:01 2008 -0800"
      },
      "message": "Genericizing iova.[ch]\n\nI would like to potentially move the sparc64 IOMMU code over to using\nthe nice new drivers/pci/iova.[ch] code for free area management..\n\nIn order to do that we have to detach the IOMMU page size assumptions\nwhich only really need to exist in the intel-iommu.[ch] code.\n\nThis patch attempts to implement that.\n\n[akpm@linux-foundation.org: build fix]\nSigned-off-by: David S. Miller \u003cdavem@davemloft.net\u003e\nAcked-by: Anil S Keshavamurthy \u003canil.s.keshavamurthy@intel.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "093f87d279669c74e84530e925e4735c9aae8898",
      "tree": "b388fed2eaedde4ad103d706666c84e5799dbe04",
      "parents": [
        "652c538eb5bc3fa04bc5f27db9014f0168aefe97"
      ],
      "author": {
        "name": "Fenghua Yu",
        "email": "fenghua.yu@intel.com",
        "time": "Wed Nov 21 15:07:14 2007 -0800"
      },
      "committer": {
        "name": "Greg Kroah-Hartman",
        "email": "gregkh@suse.de",
        "time": "Fri Feb 01 15:04:21 2008 -0800"
      },
      "message": "PCI: More Sanity checks for DMAR\n\nAdd and changes a few sanity checks in dmar.c.\n\n1.  The haw field in ACPI DMAR table in VT-d spec doesn\u0027t describe the\n   range of haw.  But since DMA page size is 4KB in DMA remapping, haw\n   should be at least 4KB.  The current VT-d code in dmar.c returns failure\n   when haw\u003d\u003d0.  This sanity check is not accurate and execution can pass\n   when haw is less than one page size 4KB.  This patch changes the haw\n   sanity check to validate if haw is less than 4KB.\n\n2. Add dmar_rmrr_units verification.\n\n3. Add parse_dmar_table() verification.\n\n[akpm@linux-foundation.org: coding-style fixes]\n\nSigned-off-by: Fenghua Yu \u003cfenghua.yu@intel.com\u003e\nAcked-by: mark gross \u003cmgross@linux.intel.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Greg Kroah-Hartman \u003cgregkh@suse.de\u003e\n\n"
    },
    {
      "commit": "10e5247f40f3bf7508a0ed2848c9cae37bddf4bc",
      "tree": "adca606f00ebcbdbdc5c474f012105d7e59152f6",
      "parents": [
        "89910cccb8fec0c1140d33a743e72a712efd4f05"
      ],
      "author": {
        "name": "Keshavamurthy, Anil S",
        "email": "anil.s.keshavamurthy@intel.com",
        "time": "Sun Oct 21 16:41:41 2007 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@woody.linux-foundation.org",
        "time": "Mon Oct 22 08:13:18 2007 -0700"
      },
      "message": "Intel IOMMU: DMAR detection and parsing logic\n\nThis patch supports the upcomming Intel IOMMU hardware a.k.a.  Intel(R)\nVirtualization Technology for Directed I/O Architecture and the hardware spec\nfor the same can be found here\nhttp://www.intel.com/technology/virtualization/index.htm\n\nFAQ! (questions from akpm, answers from ak)\n\n\u003e So...  what\u0027s all this code for?\n\u003e\n\u003e I assume that the intent here is to speed things up under Xen, etc?\n\nYes in some cases, but not this code.  That would be the Xen version of this\ncode that could potentially assign whole devices to guests.  I expect this to\nbe only useful in some special cases though because most hardware is not\nvirtualizable and you typically want an own instance for each guest.\n\nOk at some point KVM might implement this too; i likely would use this code\nfor this.\n\n\u003e Do we\n\u003e have any benchmark results to help us to decide whether a merge would be\n\u003e justified?\n\nThe main advantage for doing it in the normal kernel is not performance, but\nmore safety.  Broken devices won\u0027t be able to corrupt memory by doing random\nDMA.\n\nUnfortunately that doesn\u0027t work for graphics yet, for that need user space\ninterfaces for the X server are needed.\n\nThere are some potential performance benefits too:\n\n- When you have a device that cannot address the complete address range an\n  IOMMU can remap its memory instead of bounce buffering.  Remapping is likely\n  cheaper than copying.\n\n- The IOMMU can merge sg lists into a single virtual block.  This could\n  potentially speed up SG IO when the device is slow walking SG lists.  [I\n  long ago benchmarked 5% on some block benchmark with an old MPT Fusion; but\n  it probably depends a lot on the HBA]\n\nAnd you get better driver debugging because unexpected memory accesses from\nthe devices will cause a trappable event.\n\n\u003e\n\u003e Does it slow anything down?\n\nIt adds more overhead to each IO so yes.\n\nThis patch:\n\nAdd support for early detection and parsing of DMAR\u0027s (DMA Remapping) reported\nto OS via ACPI tables.\n\nDMA remapping(DMAR) devices support enables independent address translations\nfor Direct Memory Access(DMA) from Devices.  These DMA remapping devices are\nreported via ACPI tables and includes pci device scope covered by these DMA\nremapping device.\n\nFor detailed info on the specification of \"Intel(R) Virtualization Technology\nfor Directed I/O Architecture\" please see\nhttp://www.intel.com/technology/virtualization/index.htm\n\nSigned-off-by: Anil S Keshavamurthy \u003canil.s.keshavamurthy@intel.com\u003e\nCc: Andi Kleen \u003cak@suse.de\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Muli Ben-Yehuda \u003cmuli@il.ibm.com\u003e\nCc: \"Siddha, Suresh B\" \u003csuresh.b.siddha@intel.com\u003e\nCc: Arjan van de Ven \u003carjan@infradead.org\u003e\nCc: Ashok Raj \u003cashok.raj@intel.com\u003e\nCc: \"David S. Miller\" \u003cdavem@davemloft.net\u003e\nCc: Christoph Lameter \u003cclameter@sgi.com\u003e\nCc: Greg KH \u003cgreg@kroah.com\u003e\nCc: Len Brown \u003clenb@kernel.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    }
  ]
}