Displaying 2 results from an estimated 2 matches for "_vcpuf_initialised".
2006 Jan 25
0
changing max vcpus threshold while a domain is running
...running. The following comment in common/dom0_ops.c warns against this:
/*
* Can only create new VCPUs while the domain is not fully
* constructed
* (and hence not runnable). Xen needs auditing for races before
* removing this check.
*/
ret = -EINVAL;
if ( test_bit(_VCPUF_initialised, &d->vcpu[0]->vcpu_flags) )
goto maxvcpu_out;
Do you know which race condition is being avoided by this check for
_VCPUF_initialised? Could it be the for_each_vcpu macro only checks for
null and a vcpu structure could be alloc''d but not initialized, and then
used inside...
2007 Jan 11
6
[PATCH 4/8] HVM save restore: vcpu context support
...b/xen/arch/x86/domain.c Thu Jan 11 16:46:59 2007 +0800
@@ -573,6 +573,7 @@ int arch_set_info_guest(
else
{
hvm_load_cpu_guest_regs(v, &v->arch.guest_context.user_regs);
+ hvm_load_cpu_context(v, &v->arch.guest_context.hvmcpu_ctxt);
}
if ( test_bit(_VCPUF_initialised, &v->vcpu_flags) )
diff -r ee20d1905bde xen/arch/x86/domctl.c
--- a/xen/arch/x86/domctl.c Thu Jan 11 16:40:55 2007 +0800
+++ b/xen/arch/x86/domctl.c Thu Jan 11 16:49:34 2007 +0800
@@ -322,8 +322,10 @@ void arch_get_info_guest(struct vcpu *v,
if ( is_hvm_vcpu(v) )
{
- if (...