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Support Xen 4.0 sysctl version 7

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xen-unstable c/s 20762 bumped XEN_SYSCTL_INTERFACE_VERSION to 7.  The
interface change does not affect libvirt, other than xenHypervisorInit()
failing since version 7 is not tried.

The attached patch accommodates the upcoming Xen 4.0 release by checking
for XEN_SYSCTL_INTERFACE_VERSION 7.  If found, it sets
XEN_DOMCTL_INTERFACE_VERSION to 6, which is also new to Xen 4.0.
This commit is contained in:
Jim Fehlig 2010-01-27 10:56:18 -07:00
parent 6f4ca18d83
commit 3bd3d6b0bf
1 changed files with 7 additions and 5 deletions
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12
src/xen/xen_hypervisor.c
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@ -2100,12 +2100,14 @@ xenHypervisorInit(void)
DEBUG0("Using hypervisor call v2, sys ver6 dom ver5\n");
goto done;
}
/* Xen 4.0 */
}
/* Xen 4.0 */
sys_interface_version = 7; /* XEN_SYSCTL_INTERFACE_VERSION */
if (virXen_getdomaininfo(fd, 0, &info) == 1) {
dom_interface_version = 6; /* XEN_DOMCTL_INTERFACE_VERSION */
if (virXen_getvcpusinfo(fd, 0, 0, ipt, NULL, 0) == 0){
DEBUG0("Using hypervisor call v2, sys ver6 dom ver6\n");
goto done;
}
DEBUG0("Using hypervisor call v2, sys ver7 dom ver6\n");
goto done;
}
hypervisor_version = 1;