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xen,configure: detect Xen 4.2 

Xen 4.2 is the first to support xc_hvm_inject_msi: use it to determine
if we are running on it.

Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Acked-by: Anthony PERARD <anthony.perard@citrix.com>
This commit is contained in:
Stefano Stabellini 2012-04-17 17:04:18 +00:00
parent 158fd3ce98
commit 8688e0652d
1 changed files with 25 additions and 0 deletions
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25
configure vendored
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@ -1391,6 +1391,31 @@ EOF
#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;
}
EOF
compile_prog "" "$xen_libs"
) ; then
xen_ctrl_version=420
xen=yes
elif (
cat > $TMPC <<EOF
#include <xenctrl.h>
#include <xs.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();