Hello Boris, On 9/21/2022 2:17 PM, Borislav Petkov wrote: > On Wed, Sep 21, 2022 at 12:06:38PM +0530, K Prateek Nayak wrote: >> diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c >> index 16a1663d02d4..18850aa2b79b 100644 >> --- a/drivers/acpi/processor_idle.c >> +++ b/drivers/acpi/processor_idle.c >> @@ -528,8 +528,11 @@ static int acpi_idle_bm_check(void) >> static void wait_for_freeze(void) >> { >> #ifdef CONFIG_X86 >> - /* No delay is needed if we are in guest */ >> - if (boot_cpu_has(X86_FEATURE_HYPERVISOR)) >> + /* >> + * No delay is needed if we are in guest or on a processor >> + * based on the Zen microarchitecture. >> + */ >> + if (boot_cpu_has(X86_FEATURE_HYPERVISOR) || boot_cpu_has(X86_FEATURE_ZEN)) > > s/boot_cpu_has/cpu_feature_enabled/g I was not aware of cpu_feature_enabled() and it makes perfect sense to use it here. Thank you for bringing it to my notice. I'll make this change in v2. > > while at it. > -- Thanks and Regards, Prateek