diff options
| -rw-r--r-- | arch/x86/hyperv/hv_init.c | 7 | ||||
| -rw-r--r-- | include/asm-generic/mshyperv.h | 2 |
2 files changed, 9 insertions, 0 deletions
diff --git a/arch/x86/hyperv/hv_init.c b/arch/x86/hyperv/hv_init.c index b2daf0ebdb19..7552fe196d83 100644 --- a/arch/x86/hyperv/hv_init.c +++ b/arch/x86/hyperv/hv_init.c @@ -7,6 +7,7 @@ * Author : K. Y. Srinivasan <kys@microsoft.com> */ +#include <linux/acpi.h> #include <linux/efi.h> #include <linux/types.h> #include <asm/apic.h> @@ -439,3 +440,9 @@ bool hv_is_hyperv_initialized(void) return hypercall_msr.enable; } EXPORT_SYMBOL_GPL(hv_is_hyperv_initialized); + +bool hv_is_hibernation_supported(void) +{ + return acpi_sleep_state_supported(ACPI_STATE_S4); +} +EXPORT_SYMBOL_GPL(hv_is_hibernation_supported); diff --git a/include/asm-generic/mshyperv.h b/include/asm-generic/mshyperv.h index 18d8e2d8210f..b3f1082cc435 100644 --- a/include/asm-generic/mshyperv.h +++ b/include/asm-generic/mshyperv.h @@ -166,10 +166,12 @@ static inline int cpumask_to_vpset(struct hv_vpset *vpset, void hyperv_report_panic(struct pt_regs *regs, long err); void hyperv_report_panic_msg(phys_addr_t pa, size_t size); bool hv_is_hyperv_initialized(void); +bool hv_is_hibernation_supported(void); void hyperv_cleanup(void); void hv_setup_sched_clock(void *sched_clock); #else /* CONFIG_HYPERV */ static inline bool hv_is_hyperv_initialized(void) { return false; } +static inline bool hv_is_hibernation_supported(void) { return false; } static inline void hyperv_cleanup(void) {} #endif /* CONFIG_HYPERV */ |