[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [PATCH v3] xen: fix reboot/shutdown with running HVM guests
On 05/06/14 16:01, Roger Pau Monne wrote: > If there's a guest using VMX/SVM when the hypervisor shuts down, it > can lead to the following crash due to VMX/SVM functions being called > after hvm_cpu_down has been called. In order to prevent that, check in > {svm/vmx}_ctxt_switch_from that the cpu virtualization extensions are > still enabled. > > I feel that this is still trying to fix the problem from the wrong end. It is incorrect to be in a context switch at the point identified in the stack trace. How about having the hvm_cpu_down functions look at current, and optionally run sync_exec_state() ? ~Andrew _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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