[PATCH] configure: Add --disable-kvm-options

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In Fedora, our qemu package is based on qemu-kvm, and we go to convoluted
lengths to provide a qemu-kvm binary with KVM on by default, but all
qemu-system-* with KVM off by default (using ./configure --disable-kvm)

For qemu-system*, what we really want is upstream qemu symantics of TCG
by default, but the opt in option for KVM. CONFIG_KVM_OPTIONS fits the
bill, so let's expose it through ./configure. This will also simplify
our packaging for non-x86 KVM.

Signed-off-by: Cole Robinson <crobinso@xxxxxxxxxx>
---
 configure | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/configure b/configure
index 6b66d34..8f4d9e3 100755
--- a/configure
+++ b/configure
@@ -189,6 +189,7 @@ guest_base=""
 uname_release=""
 mixemu="no"
 kvm_cap_device_assignment="yes"
+kvmoptions="yes"
 aix="no"
 blobs="yes"
 pkgversion=" ($(kvm_version))"
@@ -707,6 +708,8 @@ for opt do
   ;;
   --enable-kvm) kvm="yes"
   ;;
+  --disable-kvm-options) kvmoptions="no"
+  ;;
   --disable-tcg-interpreter) tcg_interpreter="no"
   ;;
   --enable-tcg-interpreter) tcg_interpreter="yes"
@@ -1071,6 +1074,8 @@ echo "  --enable-bluez           enable bluez stack connectivity"
 echo "  --disable-slirp          disable SLIRP userspace network connectivity"
 echo "  --disable-kvm            disable KVM acceleration support"
 echo "  --enable-kvm             enable KVM acceleration support"
+echo "  --disable-kvm-options    if KVM is enabled, default to KVM=off, and"
+echo "                           remove non-upstream cli options"
 echo "  --enable-tcg-interpreter enable TCG with bytecode interpreter (TCI)"
 echo "  --disable-kvm-device-assignment  disable KVM device assignment support"
 echo "  --enable-kvm-device-assignment   enable KVM device assignment support"
@@ -3101,6 +3106,7 @@ echo "Install blobs     $blobs"
 echo "KVM support       $kvm"
 echo "TCG interpreter   $tcg_interpreter"
 echo "KVM device assig. $kvm_cap_device_assignment"
+echo "KVM CLI options   $kvmoptions"
 echo "fdt support       $fdt"
 echo "preadv support    $preadv"
 echo "fdatasync         $fdatasync"
@@ -3818,7 +3824,10 @@ case "$target_arch2" in
       \( "$target_arch2" = "x86_64" -a "$cpu" = "i386"   \) -o \
       \( "$target_arch2" = "i386"   -a "$cpu" = "x86_64" \) \) ; then
       echo "CONFIG_KVM=y" >> $config_target_mak
-      echo "CONFIG_KVM_OPTIONS=y" >> $config_host_mak
+
+      if test "$kvmoptions" = "yes" ; then
+        echo "CONFIG_KVM_OPTIONS=y" >> $config_host_mak
+      fi
       if test "$vhost_net" = "yes" ; then
         echo "CONFIG_VHOST_NET=y" >> $config_target_mak
       fi
-- 
1.7.11.2

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