Re: [PATCH v2 3/4] x86/PV: avoid double stack reset during schedule tail handling

2020-12-15 Thread Wei Liu
On Tue, Dec 15, 2020 at 05:12:36PM +0100, Jan Beulich wrote: > Invoking check_wakeup_from_wait() from assembly allows the new > continue_pv_domain() to replace the prior continue_nonidle_domain() as > the tail hook, eliminating an extra reset_stack_and_jump(). > > Signed-off-by: Jan Beulich >

[PATCH v2 3/4] x86/PV: avoid double stack reset during schedule tail handling

2020-12-15 Thread Jan Beulich
Invoking check_wakeup_from_wait() from assembly allows the new continue_pv_domain() to replace the prior continue_nonidle_domain() as the tail hook, eliminating an extra reset_stack_and_jump(). Signed-off-by: Jan Beulich Reviewed-by: Juergen Gross --- a/xen/arch/x86/pv/domain.c +++