debian/patches-0.12.1/enable-ksm.diff

   1 From: Izik Eidus <ieidus@redhat.com>
   2 Date: Thu, 8 Oct 2009 14:39:39 +0000 (+0200)
   3 Subject: ksm support
   4 X-Git-Url: http://git.kernel.org/?p=virt%2Fkvm%2Fqemu-kvm.git;a=commitdiff_plain;h=ccb167e9d7d460a7cd09fdabd848efd3606dd27e
   5
   6 ksm support
   7
   8 patch is slighly modified by <support@proxmox.com> for old libc
   9
  10 Call MADV_MERGEABLE on guest memory allocations.  MADV_MERGABLE will be
  11 available starting in Linux 2.6.32.  This system call registers a region of
  12 virtual address space with Linux as a candidate for transparent memory
  13 sharing.
  14
  15 Patchworks-ID: 35447
  16 Signed-off-by: Izik Eidus <ieidus@redhat.com>
  17 Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
  18 ---
  19
  20 Index: qemu-kvm/exec.c
  21 ===================================================================
  22 --- qemu-kvm.orig/exec.c        2009-12-21 10:37:57.000000000 +0100
  23 +++ qemu-kvm/exec.c     2009-12-21 11:22:34.000000000 +0100
  24 @@ -48,6 +48,9 @@
  25  #include <qemu.h>
  26  #endif
  27
  28 +/* our libc does not define it */
  29 +#define MADV_MERGEABLE   12
  30 +
  31  //#define DEBUG_TB_INVALIDATE
  32  //#define DEBUG_FLUSH
  33  //#define DEBUG_TLB