diff options
| author | Johannes Berg <johannes.berg@intel.com> | 2020-12-02 20:58:06 +0100 |
|---|---|---|
| committer | Richard Weinberger <richard@nod.at> | 2020-12-13 22:22:46 +0100 |
| commit | 92dcd3d31843fbe1a95d880dc912e1f6beac6632 (patch) | |
| tree | db1504515c3e6c742212573aaef535345de81655 /arch/um/include | |
| parent | 2701c1bd91dda815b8541aa8c23e1e548cdb6349 (diff) | |
um: Allow PM with suspend-to-idle
In order to be able to experiment with suspend in UML, add the
minimal work to be able to suspend (s2idle) an instance of UML,
and be able to wake it back up from that state with the USR1
signal sent to the main UML process.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Acked-By: Anton Ivanov <anton.ivanov@cambridgegreys.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
Diffstat (limited to 'arch/um/include')
| -rw-r--r-- | arch/um/include/shared/kern_util.h | 2 | ||||
| -rw-r--r-- | arch/um/include/shared/os.h | 1 |
2 files changed, 3 insertions, 0 deletions
diff --git a/arch/um/include/shared/kern_util.h b/arch/um/include/shared/kern_util.h index ccafb62e8cce..9c08e728a675 100644 --- a/arch/um/include/shared/kern_util.h +++ b/arch/um/include/shared/kern_util.h @@ -39,6 +39,8 @@ extern int is_syscall(unsigned long addr); extern void timer_handler(int sig, struct siginfo *unused_si, struct uml_pt_regs *regs); +extern void uml_pm_wake(void); + extern int start_uml(void); extern void paging_init(void); diff --git a/arch/um/include/shared/os.h b/arch/um/include/shared/os.h index 0f7fb8bad728..78250a05394a 100644 --- a/arch/um/include/shared/os.h +++ b/arch/um/include/shared/os.h @@ -241,6 +241,7 @@ extern int set_signals(int enable); extern int set_signals_trace(int enable); extern int os_is_signal_stack(void); extern void deliver_alarm(void); +extern void register_pm_wake_signal(void); /* util.c */ extern void stack_protections(unsigned long address); |