meson, configure: move Xen detection to meson
This is quite a complicated check. I moved all the test programs to
a single file in scripts/, picking the right program with #if and a -D
flag in meson.build's cc.links() invocation.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
diff --git a/scripts/xen-detect.c b/scripts/xen-detect.c
new file mode 100644
index 0000000..85e8206
--- /dev/null
+++ b/scripts/xen-detect.c
@@ -0,0 +1,203 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
+/* Test programs for various Xen versions that QEMU supports. */
+#if CONFIG_XEN_CTRL_INTERFACE_VERSION == 41100
+ #undef XC_WANT_COMPAT_DEVICEMODEL_API
+ #define __XEN_TOOLS__
+ #include <xendevicemodel.h>
+ #include <xenforeignmemory.h>
+ int main(void) {
+ xendevicemodel_handle *xd;
+ xenforeignmemory_handle *xfmem;
+
+ xd = xendevicemodel_open(0, 0);
+ xendevicemodel_pin_memory_cacheattr(xd, 0, 0, 0, 0);
+
+ xfmem = xenforeignmemory_open(0, 0);
+ xenforeignmemory_map_resource(xfmem, 0, 0, 0, 0, 0, NULL, 0, 0);
+
+ return 0;
+ }
+
+#elif CONFIG_XEN_CTRL_INTERFACE_VERSION == 41000
+ #undef XC_WANT_COMPAT_MAP_FOREIGN_API
+ #include <xenforeignmemory.h>
+ #include <xentoolcore.h>
+ int main(void) {
+ xenforeignmemory_handle *xfmem;
+
+ xfmem = xenforeignmemory_open(0, 0);
+ xenforeignmemory_map2(xfmem, 0, 0, 0, 0, 0, 0, 0);
+ xentoolcore_restrict_all(0);
+
+ return 0;
+ }
+
+#elif CONFIG_XEN_CTRL_INTERFACE_VERSION == 40900
+ #undef XC_WANT_COMPAT_DEVICEMODEL_API
+ #define __XEN_TOOLS__
+ #include <xendevicemodel.h>
+ int main(void) {
+ xendevicemodel_handle *xd;
+
+ xd = xendevicemodel_open(0, 0);
+ xendevicemodel_close(xd);
+
+ return 0;
+ }
+
+#elif CONFIG_XEN_CTRL_INTERFACE_VERSION == 40800
+ /*
+ * If we have stable libs the we don't want the libxc compat
+ * layers, regardless of what CFLAGS we may have been given.
+ *
+ * Also, check if xengnttab_grant_copy_segment_t is defined and
+ * grant copy operation is implemented.
+ */
+ #undef XC_WANT_COMPAT_EVTCHN_API
+ #undef XC_WANT_COMPAT_GNTTAB_API
+ #undef XC_WANT_COMPAT_MAP_FOREIGN_API
+ #include <xenctrl.h>
+ #include <xenstore.h>
+ #include <xenevtchn.h>
+ #include <xengnttab.h>
+ #include <xenforeignmemory.h>
+ #include <stdint.h>
+ #include <xen/hvm/hvm_info_table.h>
+ #if !defined(HVM_MAX_VCPUS)
+ # error HVM_MAX_VCPUS not defined
+ #endif
+ int main(void) {
+ xc_interface *xc = NULL;
+ xenforeignmemory_handle *xfmem;
+ xenevtchn_handle *xe;
+ xengnttab_handle *xg;
+ xengnttab_grant_copy_segment_t* seg = NULL;
+
+ xs_daemon_open();
+
+ xc = xc_interface_open(0, 0, 0);
+ xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
+ xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
+ xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
+ xc_hvm_create_ioreq_server(xc, 0, HVM_IOREQSRV_BUFIOREQ_ATOMIC, NULL);
+
+ xfmem = xenforeignmemory_open(0, 0);
+ xenforeignmemory_map(xfmem, 0, 0, 0, 0, 0);
+
+ xe = xenevtchn_open(0, 0);
+ xenevtchn_fd(xe);
+
+ xg = xengnttab_open(0, 0);
+ xengnttab_grant_copy(xg, 0, seg);
+
+ return 0;
+ }
+
+#elif CONFIG_XEN_CTRL_INTERFACE_VERSION == 40701
+ /*
+ * If we have stable libs the we don't want the libxc compat
+ * layers, regardless of what CFLAGS we may have been given.
+ */
+ #undef XC_WANT_COMPAT_EVTCHN_API
+ #undef XC_WANT_COMPAT_GNTTAB_API
+ #undef XC_WANT_COMPAT_MAP_FOREIGN_API
+ #include <xenctrl.h>
+ #include <xenstore.h>
+ #include <xenevtchn.h>
+ #include <xengnttab.h>
+ #include <xenforeignmemory.h>
+ #include <stdint.h>
+ #include <xen/hvm/hvm_info_table.h>
+ #if !defined(HVM_MAX_VCPUS)
+ # error HVM_MAX_VCPUS not defined
+ #endif
+ int main(void) {
+ xc_interface *xc = NULL;
+ xenforeignmemory_handle *xfmem;
+ xenevtchn_handle *xe;
+ xengnttab_handle *xg;
+
+ xs_daemon_open();
+
+ xc = xc_interface_open(0, 0, 0);
+ xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
+ xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
+ xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
+ xc_hvm_create_ioreq_server(xc, 0, HVM_IOREQSRV_BUFIOREQ_ATOMIC, NULL);
+
+ xfmem = xenforeignmemory_open(0, 0);
+ xenforeignmemory_map(xfmem, 0, 0, 0, 0, 0);
+
+ xe = xenevtchn_open(0, 0);
+ xenevtchn_fd(xe);
+
+ xg = xengnttab_open(0, 0);
+ xengnttab_map_grant_ref(xg, 0, 0, 0);
+
+ return 0;
+ }
+
+#elif CONFIG_XEN_CTRL_INTERFACE_VERSION == 40600
+ #include <xenctrl.h>
+ #include <xenstore.h>
+ #include <stdint.h>
+ #include <xen/hvm/hvm_info_table.h>
+ #if !defined(HVM_MAX_VCPUS)
+ # error HVM_MAX_VCPUS not defined
+ #endif
+ int main(void) {
+ xc_interface *xc;
+ xs_daemon_open();
+ xc = xc_interface_open(0, 0, 0);
+ xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
+ xc_gnttab_open(NULL, 0);
+ xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
+ xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
+ xc_hvm_create_ioreq_server(xc, 0, HVM_IOREQSRV_BUFIOREQ_ATOMIC, NULL);
+ xc_reserved_device_memory_map(xc, 0, 0, 0, 0, NULL, 0);
+ return 0;
+ }
+
+#elif CONFIG_XEN_CTRL_INTERFACE_VERSION == 40500
+ #include <xenctrl.h>
+ #include <xenstore.h>
+ #include <stdint.h>
+ #include <xen/hvm/hvm_info_table.h>
+ #if !defined(HVM_MAX_VCPUS)
+ # error HVM_MAX_VCPUS not defined
+ #endif
+ int main(void) {
+ xc_interface *xc;
+ xs_daemon_open();
+ xc = xc_interface_open(0, 0, 0);
+ xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
+ xc_gnttab_open(NULL, 0);
+ xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
+ xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
+ xc_hvm_create_ioreq_server(xc, 0, 0, NULL);
+ return 0;
+ }
+
+#elif CONFIG_XEN_CTRL_INTERFACE_VERSION == 40200
+ #include <xenctrl.h>
+ #include <xenstore.h>
+ #include <stdint.h>
+ #include <xen/hvm/hvm_info_table.h>
+ #if !defined(HVM_MAX_VCPUS)
+ # error HVM_MAX_VCPUS not defined
+ #endif
+ int main(void) {
+ xc_interface *xc;
+ xs_daemon_open();
+ xc = xc_interface_open(0, 0, 0);
+ xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
+ xc_gnttab_open(NULL, 0);
+ xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
+ xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
+ return 0;
+ }
+
+#else
+#error invalid CONFIG_XEN_CTRL_INTERFACE_VERSION
+#endif
