[PATCH v2 0/2] introduce --with-system-qemu-traditional

[PATCH v2 0/2] introduce --with-system-qemu-traditional

[Stefano Stabellini]

Hi all,

This patch series introduces a new configure command line option to
provide an externally built qemu-dm binary and stop xen-unstable from
trying to clone and build qemu-xen-traditional.


Changes in v2:

- update INSTALL file
- retain disable-qemu-traditional configure option



Stefano Stabellini (2):
      Introduce configure option  --with-system-qemu-traditional
      Update configure scripts by calling autogen

 INSTALL                |    3 +++
 tools/config.h.in      |    3 +++
 tools/configure        |   29 +++++++++++++++++++++++++++++
 tools/configure.ac     |   16 ++++++++++++++++
 tools/libxl/libxl_dm.c |   11 ++++++++++-
 5 files changed, 61 insertions(+), 1 deletion(-)


Cheers,

Stefano

[PATCH v2 1/2] Introduce configure option --with-system-qemu-traditional

[Stefano Stabellini]

Introduce a configure option to disable the in-tree qemu-traditional
build and use an externally provided qemu-dm binary. The option is very
similar to the existing --with-system-qemu-xen.

Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
---
 INSTALL                |    3 +++
 tools/configure.ac     |   16 ++++++++++++++++
 tools/libxl/libxl_dm.c |   11 ++++++++++-
 3 files changed, 29 insertions(+), 1 deletion(-)

diff --git a/INSTALL b/INSTALL
index a0f2e7b..3c7c56f 100644
--- a/INSTALL
+++ b/INSTALL
@@ -107,6 +107,9 @@ qemu-traditional.
   --enable-qemu-traditional
   --enable-rombios
 
+Use the given qemu-traditional binary instead of compiling a private copy.
+  --with-system-qemu-traditional=PATH
+
 The libxl toolstack uses the upstream qemu per default. A private copy
 will be built. If desired this private copy can be configured with
 additional options passed to its configure script.
diff --git a/tools/configure.ac b/tools/configure.ac
index d31c2f3..9bad253 100644
--- a/tools/configure.ac
+++ b/tools/configure.ac
@@ -169,6 +169,22 @@ AC_DEFINE([HAVE_ROMBIOS], [1], [ROMBIOS enabled])
 ])
 AC_SUBST(rombios)
 
+AC_ARG_WITH([system-qemu-traditional],
+    AS_HELP_STRING([--with-system-qemu-traditional@<:@=PATH@:>@],
+       [Use system supplied qemu-traditional PATH or qemu-dm
+       (taken from $PATH) as qemu-traditional device model instead of
+       building and installing our own version]),[
+    case $withval in
+    yes) qemu_traditional=n; qemu_traditional_path=qemu-dm ;;
+    no)  qemu_traditional=y; qemu_traditional_path= ;;
+    *)   qemu_traditional=n; qemu_traditional_path=$withval ;;
+    esac
+],[])
+AS_IF([test "x$qemu_traditional" = "xn"], [
+    AC_DEFINE_UNQUOTED([QEMU_TRADITIONAL_PATH], ["$qemu_traditional_path"], [Qemu Traditional Xen path])
+])
+AC_SUBST(qemu_traditional_path)
+
 AC_ARG_WITH([system-qemu],
     AS_HELP_STRING([--with-system-qemu@<:@=PATH@:>@],
        [Use system supplied qemu PATH or qemu (taken from $PATH) as qemu-xen
diff --git a/tools/libxl/libxl_dm.c b/tools/libxl/libxl_dm.c
index 30c1578..7a2ebbe 100644
--- a/tools/libxl/libxl_dm.c
+++ b/tools/libxl/libxl_dm.c
@@ -43,6 +43,15 @@ static const char *qemu_xen_path(libxl__gc *gc)
 #endif
 }
 
+static const char *qemu_traditional_path(libxl__gc *gc)
+{
+#ifdef QEMU_TRADITIONAL_PATH
+    return QEMU_TRADITIONAL_PATH;
+#else
+    return libxl__abs_path(gc, "qemu-dm", libxl__private_bindir_path());
+#endif
+}
+
 static int libxl__create_qemu_logfile(libxl__gc *gc, char *name)
 {
     char *logfile;
@@ -74,7 +83,7 @@ const char *libxl__domain_device_model(libxl__gc *gc,
     } else {
         switch (info->device_model_version) {
         case LIBXL_DEVICE_MODEL_VERSION_QEMU_XEN_TRADITIONAL:
-            dm = libxl__abs_path(gc, "qemu-dm", libxl__private_bindir_path());
+            dm = qemu_traditional_path(gc);
             break;
         case LIBXL_DEVICE_MODEL_VERSION_QEMU_XEN:
             dm = qemu_xen_path(gc);
-- 
1.7.10.4

[PATCH v2 2/2] Update configure scripts by calling autogen

[Stefano Stabellini]

I run ./autogen.sh and committed the result.

Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
---
 tools/config.h.in |    3 +++
 tools/configure   |   29 +++++++++++++++++++++++++++++
 2 files changed, 32 insertions(+)

diff --git a/tools/config.h.in b/tools/config.h.in
index 2a0ae48..b556961 100644
--- a/tools/config.h.in
+++ b/tools/config.h.in
@@ -93,6 +93,9 @@
 /* Define to the version of this package. */
 #undef PACKAGE_VERSION
 
+/* Qemu Traditional Xen path */
+#undef QEMU_TRADITIONAL_PATH
+
 /* Qemu Xen path */
 #undef QEMU_XEN_PATH
 
diff --git a/tools/configure b/tools/configure
index a752acd..f691479 100755
--- a/tools/configure
+++ b/tools/configure
@@ -699,6 +699,7 @@ EXTRA_QEMUU_CONFIGURE_ARGS
 ovmf_path
 seabios_path
 qemu_xen
+qemu_traditional_path
 rombios
 qemu_traditional
 blktap2
@@ -797,6 +798,7 @@ with_linux_backend_modules
 enable_blktap2
 enable_qemu_traditional
 enable_rombios
+with_system_qemu_traditional
 with_system_qemu
 with_system_seabios
 with_system_ovmf
@@ -1489,6 +1491,10 @@ Optional Packages:
   --with-linux-backend-modules="mod1 mod2"
                           List of Linux backend module or modalias names to be
                           autoloaded on startup.
+  --with-system-qemu-traditional[=PATH]
+                          Use system supplied qemu-traditional PATH or qemu-dm
+                          (taken from $PATH) as qemu-traditional device model
+                          instead of building and installing our own version
   --with-system-qemu[=PATH]
                           Use system supplied qemu PATH or qemu (taken from
                           $PATH) as qemu-xen device model instead of building
@@ -4127,6 +4133,29 @@ fi
 
 
 
+# Check whether --with-system-qemu-traditional was given.
+if test "${with_system_qemu_traditional+set}" = set; then :
+  withval=$with_system_qemu_traditional;
+    case $withval in
+    yes) qemu_traditional=n; qemu_traditional_path=qemu-dm ;;
+    no)  qemu_traditional=y; qemu_traditional_path= ;;
+    *)   qemu_traditional=n; qemu_traditional_path=$withval ;;
+    esac
+
+fi
+
+if test "x$qemu_traditional" = "xn"; then :
+
+
+cat >>confdefs.h <<_ACEOF
+#define QEMU_TRADITIONAL_PATH "$qemu_traditional_path"
+_ACEOF
+
+
+fi
+
+
+
 # Check whether --with-system-qemu was given.
 if test "${with_system_qemu+set}" = set; then :
   withval=$with_system_qemu;
-- 
1.7.10.4

Re: [PATCH v2 1/2] Introduce configure option --with-system-qemu-traditional

[Wei Liu]

On Thu, Apr 16, 2015 at 12:24:58PM +0100, Stefano Stabellini wrote:
> Introduce a configure option to disable the in-tree qemu-traditional
> build and use an externally provided qemu-dm binary. The option is very
> similar to the existing --with-system-qemu-xen.
                          ^^^^^
                          --with-system-qemu

> 
> Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
> ---
>  INSTALL                |    3 +++
>  tools/configure.ac     |   16 ++++++++++++++++
>  tools/libxl/libxl_dm.c |   11 ++++++++++-
>  3 files changed, 29 insertions(+), 1 deletion(-)
> 
> diff --git a/INSTALL b/INSTALL
> index a0f2e7b..3c7c56f 100644
> --- a/INSTALL
> +++ b/INSTALL
> @@ -107,6 +107,9 @@ qemu-traditional.
>    --enable-qemu-traditional
>    --enable-rombios
>  
> +Use the given qemu-traditional binary instead of compiling a private copy.
> +  --with-system-qemu-traditional=PATH
> +
>  The libxl toolstack uses the upstream qemu per default. A private copy
>  will be built. If desired this private copy can be configured with
>  additional options passed to its configure script.
> diff --git a/tools/configure.ac b/tools/configure.ac
> index d31c2f3..9bad253 100644
> --- a/tools/configure.ac
> +++ b/tools/configure.ac
> @@ -169,6 +169,22 @@ AC_DEFINE([HAVE_ROMBIOS], [1], [ROMBIOS enabled])
>  ])
>  AC_SUBST(rombios)
>  
> +AC_ARG_WITH([system-qemu-traditional],
> +    AS_HELP_STRING([--with-system-qemu-traditional@<:@=PATH@:>@],
> +       [Use system supplied qemu-traditional PATH or qemu-dm
> +       (taken from $PATH) as qemu-traditional device model instead of
> +       building and installing our own version]),[
> +    case $withval in
> +    yes) qemu_traditional=n; qemu_traditional_path=qemu-dm ;;
> +    no)  qemu_traditional=y; qemu_traditional_path= ;;
> +    *)   qemu_traditional=n; qemu_traditional_path=$withval ;;
> +    esac
> +],[])

Shouldn't this have something similar to qemu_xen case -- test
architecture to determine whether to build it or not.

And how does this option interact with --enable-qemu-traditional?

Wei.

Re: [PATCH v2 2/2] Update configure scripts by calling autogen

[Wei Liu]

On Thu, Apr 16, 2015 at 12:24:59PM +0100, Stefano Stabellini wrote:
> I run ./autogen.sh and committed the result.
> 

This patch needs to be squashed into previous to keep the tree
bisectable.

Wei.

Re: [PATCH v2 2/2] Update configure scripts by calling autogen

[Ian Campbell]

On Mon, 2015-05-04 at 12:19 +0100, Wei Liu wrote:
> On Thu, Apr 16, 2015 at 12:24:59PM +0100, Stefano Stabellini wrote:
> > I run ./autogen.sh and committed the result.
> > 
> 
> This patch needs to be squashed into previous to keep the tree
> bisectable.

I assumed the intention was for the committer to apply the previous
patch and run autogen and then skip this patch.

Ian.

Re: [PATCH v2 1/2] Introduce configure option --with-system-qemu-traditional

[Ian Campbell]

On Thu, 2015-04-16 at 12:24 +0100, Stefano Stabellini wrote:
> Introduce a configure option to disable the in-tree qemu-traditional
> build and use an externally provided qemu-dm binary. The option is very
> similar to the existing --with-system-qemu-xen.

This overlaps a bit with the existing --with(out)-qemu-traditional.

Rather than having two similarish options I think it would be better to
allow the existing option to accept "yes", "no" or a path which is to be
used (and implies yes).

Ian.