Re: [PATCH v11 0/2] x86: vmclear vmcss on all cpus when doing kdump if necessary

2012-12-06 Thread Gleb Natapov
On Thu, Dec 06, 2012 at 11:36:48PM +0800, Zhang Yanfei wrote: > Currently, kdump just makes all the logical processors leave VMX operation by > executing VMXOFF instruction, so any VMCSs active on the logical processors > may > be corrupted. But, sometimes, we need the VMCSs to debug guest images

[PATCH v11 0/2] x86: vmclear vmcss on all cpus when doing kdump if necessary

2012-12-06 Thread Zhang Yanfei
Currently, kdump just makes all the logical processors leave VMX operation by executing VMXOFF instruction, so any VMCSs active on the logical processors may be corrupted. But, sometimes, we need the VMCSs to debug guest images contained in the host vmcore. To prevent the corruption, we should

[PATCH v11 0/2] x86: vmclear vmcss on all cpus when doing kdump if necessary

2012-12-06 Thread Zhang Yanfei
Currently, kdump just makes all the logical processors leave VMX operation by executing VMXOFF instruction, so any VMCSs active on the logical processors may be corrupted. But, sometimes, we need the VMCSs to debug guest images contained in the host vmcore. To prevent the corruption, we should

Re: [PATCH v11 0/2] x86: vmclear vmcss on all cpus when doing kdump if necessary

2012-12-06 Thread Gleb Natapov
On Thu, Dec 06, 2012 at 11:36:48PM +0800, Zhang Yanfei wrote: Currently, kdump just makes all the logical processors leave VMX operation by executing VMXOFF instruction, so any VMCSs active on the logical processors may be corrupted. But, sometimes, we need the VMCSs to debug guest images