Hi!
Just in case somebody else needs this. Below is a patch which allows building qemu-kvm-0.15 unter CentOS 5.6 with vanilla kernel 2.6.35.14 and (optionally) vde2 [1].
FYI: qemu-kvm-0.15 compiles fine on CentOS 6 with distro-kernel, no patches needed.
For CentOS 5.6, unpack 0.15 qemu-kvm tarball [2], apply the path below, configure and compile. Make sure to export the kernel include path before building, otherwise the kernel mman-common.h header won't be found: export CPATH=/lib/modules/2.6.35.14/build/include
The patch also adds some #error pragmas to make sure that KSM is used. This isn't a requirement to run, though.
If you'd like to use vde2 too, then additionally export the paths to the vde2 installation (here: /opt/vde2) before configure (if vde2 is not installed in /opt/vde2 then change your paths accordingly): export CCFLAGS="-I/opt/vde2/include" export LDFLAGS="-L/opt/vde2/lib" export LD_LIBRARY_PATH="/opt/vde2/lib${LD_LIBRARY_PATH:+:$LD_LIBRARY_PATH}"
With the above, ./configure --enable-vde works (for me).
I'm posting this here, rather than on a kvm list, because this is rather CentOS 5 specific, IMHO.
Anyways, if you reply to this, please be sure to add a CC: to my email address. While I am subscribed to this list, your email might get buried by the list traffic. Thanks.
Best regards, Walter
References: [1] http://vde.sourceforge.net/ [2] http://sourceforge.net/projects/kvm/files/qemu-kvm/0.15.0/qemu-kvm-0.15.0.ta...
PS: The g_strcmp0() function was ripped from the URL below, just happened to be on top of Google's search results. (c) therefore of authors "Sysadmin Ramblings". http://ramblings.narrabilis.com/patches/nautilus-dropbox-0.6.3-puias.patch
--- qemu-kvm-0.15.0/exec.c.orig 2011-08-19 11:36:04.000000000 +0200 +++ qemu-kvm-0.15.0/exec.c 2011-08-19 11:36:35.000000000 +0200 @@ -72,6 +72,15 @@ //#define DEBUG_IOPORT //#define DEBUG_SUBPAGE
+#include <asm-generic/mman-common.h> +#ifndef MADV_MERGEABLE +#error MADV_MERGEABLE +#endif + +#ifndef QEMU_MADV_MERGEABLE +#error QEMU_MADV_MERGEABLE +#endif + #if !defined(CONFIG_USER_ONLY) /* TB consistency checks only implemented for usermode emulation. */ #undef DEBUG_TB_CHECK --- qemu-kvm-0.15.0/qemu-common.h.orig 2011-08-19 11:34:22.000000000 +0200 +++ qemu-kvm-0.15.0/qemu-common.h 2011-08-19 11:17:18.000000000 +0200 @@ -33,6 +33,7 @@ #include <sys/time.h> #include <assert.h> #include <signal.h> +#include <asm-generic/mman-common.h>
#ifdef _WIN32 #include "qemu-os-win32.h" --- qemu-kvm-0.15.0/osdep.h.orig 2011-08-19 11:34:22.000000000 +0200 +++ qemu-kvm-0.15.0/osdep.h 2011-08-19 11:17:18.000000000 +0200 @@ -10,6 +10,11 @@
#include <sys/time.h>
+#include <asm-generic/mman-common.h> +#ifndef MADV_MERGEABLE +#error MADV_MERGEABLE undefined +#endif + #ifndef glue #define xglue(x, y) x ## y #define glue(x, y) xglue(x, y) @@ -95,6 +100,11 @@
#define QEMU_MADV_INVALID -1
+#include "config-host.h" +#ifndef CONFIG_MADVISE +#error CONFIG_MADVISE undefined +#endif + #if defined(CONFIG_MADVISE)
#define QEMU_MADV_WILLNEED MADV_WILLNEED @@ -102,11 +112,13 @@ #ifdef MADV_DONTFORK #define QEMU_MADV_DONTFORK MADV_DONTFORK #else +#error QEMU_MADV_DONTFORK undefined #define QEMU_MADV_DONTFORK QEMU_MADV_INVALID #endif #ifdef MADV_MERGEABLE #define QEMU_MADV_MERGEABLE MADV_MERGEABLE #else +#error MADV_MERGEABLE undefined #define QEMU_MADV_MERGEABLE QEMU_MADV_INVALID #endif --- qemu-kvm-0.15.0/qemu-ga.c.orig 2011-08-19 11:34:22.000000000 +0200 +++ qemu-kvm-0.15.0/qemu-ga.c 2011-08-19 11:17:18.000000000 +0200 @@ -33,6 +33,9 @@ #define QGA_BAUDRATE_DEFAULT B38400 /* for isa-serial channels */ #define QGA_TIMEOUT_DEFAULT 30*1000 /* ms */
+/* add g_strcmp0() here which isn't available in CentOS 5 glib library */ +int g_strcmp0(const char *str1, const char *str2); /* prototype */ + struct GAState { JSONMessageParser parser; GMainLoop *main_loop; @@ -134,6 +137,15 @@ s->logging_enabled = true; }
+/* add g_strcmp0() here which isn't available in CentOS 5 glib library */ +int g_strcmp0(const char *str1, const char *str2) +{ + if( str1 == NULL && str2 == NULL ) return 0; + if( str1 == NULL ) return -1; + if( str2 == NULL ) return 1; + return g_strcasecmp(str1, str2); +}; + static void ga_log(const gchar *domain, GLogLevelFlags level, const gchar *msg, gpointer opaque) {