[RFC PATCH v4 17/24] Add iommufd configure option

[Zhenzhong Duan <zhenzhong.duan@intel.com>]

This adds "--enable-iommufd/--disable-iommufd" to enable or disable
iommufd support, enabled by default.

Signed-off-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
---
 meson.build                   | 6 ++++++
 meson_options.txt             | 2 ++
 scripts/meson-buildoptions.sh | 3 +++
 3 files changed, 11 insertions(+)

diff --git a/meson.build b/meson.build
index 5fcdb37a71..941f02ae8d 100644
--- a/meson.build
+++ b/meson.build
@@ -574,6 +574,10 @@ have_tpm = get_option('tpm') \
   .require(targetos != 'windows', error_message: 'TPM emulation only available on POSIX systems') \
   .allowed()
 
+have_iommufd = get_option('iommufd') \
+  .require(targetos == 'linux', error_message: 'iommufd is supported only on Linux') \
+  .allowed()
+
 # vhost
 have_vhost_user = get_option('vhost_user') \
   .disable_auto_if(targetos != 'linux') \
@@ -2129,6 +2133,7 @@ endif
 config_host_data.set('CONFIG_SNAPPY', snappy.found())
 config_host_data.set('CONFIG_TPM', have_tpm)
 config_host_data.set('CONFIG_TSAN', get_option('tsan'))
+config_host_data.set('CONFIG_IOMMUFD', have_iommufd)
 config_host_data.set('CONFIG_USB_LIBUSB', libusb.found())
 config_host_data.set('CONFIG_VDE', vde.found())
 config_host_data.set('CONFIG_VHOST_NET', have_vhost_net)
@@ -4051,6 +4056,7 @@ summary_info += {'vhost-user-crypto support': have_vhost_user_crypto}
 summary_info += {'vhost-user-blk server support': have_vhost_user_blk_server}
 summary_info += {'vhost-vdpa support': have_vhost_vdpa}
 summary_info += {'build guest agent': have_ga}
+summary_info += {'iommufd support': have_iommufd}
 summary(summary_info, bool_yn: true, section: 'Configurable features')
 
 # Compilation information
diff --git a/meson_options.txt b/meson_options.txt
index bbb5c7e886..43b79bdbf7 100644
--- a/meson_options.txt
+++ b/meson_options.txt
@@ -105,6 +105,8 @@ option('dbus_display', type: 'feature', value: 'auto',
        description: '-display dbus support')
 option('tpm', type : 'feature', value : 'auto',
        description: 'TPM support')
+option('iommufd', type : 'feature', value : 'auto',
+       description: 'iommufd support')
 
 # Do not enable it by default even for Mingw32, because it doesn't
 # work on Wine.
diff --git a/scripts/meson-buildoptions.sh b/scripts/meson-buildoptions.sh
index 7dd5709ef4..780b8f483a 100644
--- a/scripts/meson-buildoptions.sh
+++ b/scripts/meson-buildoptions.sh
@@ -113,6 +113,7 @@ meson_options_help() {
   printf "%s\n" '  hax             HAX acceleration support'
   printf "%s\n" '  hvf             HVF acceleration support'
   printf "%s\n" '  iconv           Font glyph conversion support'
+  printf "%s\n" '  iommufd         iommufd support'
   printf "%s\n" '  jack            JACK sound support'
   printf "%s\n" '  keyring         Linux keyring support'
   printf "%s\n" '  kvm             KVM acceleration support'
@@ -325,6 +326,8 @@ _meson_option_parse() {
     --enable-install-blobs) printf "%s" -Dinstall_blobs=true ;;
     --disable-install-blobs) printf "%s" -Dinstall_blobs=false ;;
     --interp-prefix=*) quote_sh "-Dinterp_prefix=$2" ;;
+    --enable-iommufd) printf "%s" -Diommufd=enabled ;;
+    --disable-iommufd) printf "%s" -Diommufd=disabled ;;
     --enable-jack) printf "%s" -Djack=enabled ;;
     --disable-jack) printf "%s" -Djack=disabled ;;
     --enable-keyring) printf "%s" -Dkeyring=enabled ;;
-- 
2.34.1