| Message ID | 20220930140150.37463-7-imbrenda@linux.ibm.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | KVM: s390: pv: implement lazy destroy for reboot | expand |
On 9/30/22 16:01, Claudio Imbrenda wrote: > Add the module parameter "async_destroy", to allow the asynchronous > destroy mechanism to be switched off. This might be useful for > debugging purposes. > > The parameter is enabled by default since the feature is opt-in anyway. > > Signed-off-by: Claudio Imbrenda <imbrenda@linux.ibm.com> > Reviewed-by: Janosch Frank <frankja@linux.ibm.com> LGTM Reviewed-by: Steffen Eiden <seiden@linux.ibm.com> > --- > arch/s390/kvm/kvm-s390.c | 8 +++++++- > 1 file changed, 7 insertions(+), 1 deletion(-) > > diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c > index 7a3bd68efd85..33a53b389cf3 100644 > --- a/arch/s390/kvm/kvm-s390.c > +++ b/arch/s390/kvm/kvm-s390.c > @@ -209,7 +209,13 @@ unsigned int diag9c_forwarding_hz; > module_param(diag9c_forwarding_hz, uint, 0644); > MODULE_PARM_DESC(diag9c_forwarding_hz, "Maximum diag9c forwarding per second, 0 to turn off"); > > -static int async_destroy; > +/* > + * allow asynchronous deinit for protected guests; enable by default since > + * the feature is opt-in anyway > + */ > +static int async_destroy = 1; > +module_param(async_destroy, int, 0444); > +MODULE_PARM_DESC(async_destroy, "Asynchronous destroy for protected guests"); > > /* > * For now we handle at most 16 double words as this is what the s390 base
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c index 7a3bd68efd85..33a53b389cf3 100644 --- a/arch/s390/kvm/kvm-s390.c +++ b/arch/s390/kvm/kvm-s390.c @@ -209,7 +209,13 @@ unsigned int diag9c_forwarding_hz; module_param(diag9c_forwarding_hz, uint, 0644); MODULE_PARM_DESC(diag9c_forwarding_hz, "Maximum diag9c forwarding per second, 0 to turn off"); -static int async_destroy; +/* + * allow asynchronous deinit for protected guests; enable by default since + * the feature is opt-in anyway + */ +static int async_destroy = 1; +module_param(async_destroy, int, 0444); +MODULE_PARM_DESC(async_destroy, "Asynchronous destroy for protected guests"); /* * For now we handle at most 16 double words as this is what the s390 base