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. Signed-off-by: Claudio Imbrenda <imbrenda@xxxxxxxxxxxxx> Reviewed-by: Janosch Frank <frankja@xxxxxxxxxxxxx> --- arch/s390/kvm/kvm-s390.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c index 76ad6408cb2c..49e27b5d7c3a 100644 --- a/arch/s390/kvm/kvm-s390.c +++ b/arch/s390/kvm/kvm-s390.c @@ -206,6 +206,11 @@ 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"); +/* allow asynchronous deinit for protected guests, enable by default */ +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 * kernel handles and stores in the prefix page. If we ever need to go beyond -- 2.36.1
