Add configuration option --vmm to specify the virtual machine manager.
Valid choices are 'qemu' and 'kvmtool', the default being 'qemu'. This
option is only available for the arm and arm64 architectures and does
nothing for now.

Signed-off-by: Alexandru Elisei <[email protected]>
---
 configure | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/configure b/configure
index 44708b026422..0786e1604dba 100755
--- a/configure
+++ b/configure
@@ -16,6 +16,7 @@ endian=""
 pretty_print_stacks=yes
 environ_default=yes
 u32_long=
+vmm="qemu"
 
 usage() {
     cat <<-EOF
@@ -24,6 +25,8 @@ usage() {
        Options include:
            --arch=ARCH            architecture to compile for ($arch)
            --processor=PROCESSOR  processor to compile for ($arch)
+           --vmm=VMM              virtual machine monitor to compile for (qemu
+                                  or kvmtool, default is qemu) (arm/arm64 only)
            --cross-prefix=PREFIX  cross compiler prefix
            --cc=CC                c compiler to use ($cc)
            --cxx=CXX              c++ compiler to use ($cxx)
@@ -56,6 +59,9 @@ while [[ "$1" = -* ]]; do
         --processor)
            processor="$arg"
            ;;
+       --vmm)
+           vmm="$arg"
+           ;;
        --cross-prefix)
            cross_prefix="$arg"
            ;;
@@ -108,6 +114,10 @@ if [ "$arch" = "i386" ] || [ "$arch" = "x86_64" ]; then
     testdir=x86
 elif [ "$arch" = "arm" ] || [ "$arch" = "arm64" ]; then
     testdir=arm
+    if [ "$vmm" != "qemu" ] && [ "$vmm" != "kvmtool" ]; then
+        echo '--vmm must be one of "qemu" or "kvmtool"!'
+        usage
+    fi
 elif [ "$arch" = "ppc64" ]; then
     testdir=powerpc
     firmware="$testdir/boot_rom.bin"
-- 
2.17.0

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