On 10/14/2011 02:54 AM, Lai Jiangshan wrote: > From: Kenji Kaneshige <kaneshige.kenji@xxxxxxxxxxxxxx> > > Currently, NMI interrupt is blindly sent to all the vCPUs when NMI > button event happens. This doesn't properly emulate real hardware on > which NMI button event triggers LINT1. Because of this, NMI is sent to > the processor even when LINT1 is maskied in LVT. For example, this > causes the problem that kdump initiated by NMI sometimes doesn't work > on KVM, because kdump assumes NMI is masked on CPUs other than CPU0. > > With this patch, KVM_NMI ioctl is handled as follows. > > - When in-kernel irqchip is enabled, KVM_NMI ioctl is handled as a > request of triggering LINT1 on the processor. LINT1 is emulated in > in-kernel irqchip. > > - When in-kernel irqchip is disabled, KVM_NMI ioctl is handled as a > request of injecting NMI to the processor. This assumes LINT1 is > already emulated in userland. > > (laijs) Add KVM_NMI API document > > Signed-off-by: Kenji Kaneshige <kaneshige.kenji@xxxxxxxxxxxxxx> > Tested-by: Lai Jiangshan <laijs@xxxxxxxxxxxxxx> > Patch looks good, but please add your own sign-off (it needs to be added even if you just forward the patch, and even more if you modify it). -- error compiling committee.c: too many arguments to function -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
