diff options
| -rw-r--r-- | arch/x86/hyperv/hv_init.c | 8 | ||||
| -rw-r--r-- | arch/x86/include/asm/mshyperv.h | 1 |
2 files changed, 9 insertions, 0 deletions
diff --git a/arch/x86/hyperv/hv_init.c b/arch/x86/hyperv/hv_init.c index 2db3972c0e0f..b2daf0ebdb19 100644 --- a/arch/x86/hyperv/hv_init.c +++ b/arch/x86/hyperv/hv_init.c @@ -45,6 +45,14 @@ void *hv_alloc_hyperv_page(void) } EXPORT_SYMBOL_GPL(hv_alloc_hyperv_page); +void *hv_alloc_hyperv_zeroed_page(void) +{ + BUILD_BUG_ON(PAGE_SIZE != HV_HYP_PAGE_SIZE); + + return (void *)__get_free_page(GFP_KERNEL | __GFP_ZERO); +} +EXPORT_SYMBOL_GPL(hv_alloc_hyperv_zeroed_page); + void hv_free_hyperv_page(unsigned long addr) { free_page(addr); diff --git a/arch/x86/include/asm/mshyperv.h b/arch/x86/include/asm/mshyperv.h index f4138aeb4280..6b79515abb82 100644 --- a/arch/x86/include/asm/mshyperv.h +++ b/arch/x86/include/asm/mshyperv.h @@ -219,6 +219,7 @@ static inline struct hv_vp_assist_page *hv_get_vp_assist_page(unsigned int cpu) void __init hyperv_init(void); void hyperv_setup_mmu_ops(void); void *hv_alloc_hyperv_page(void); +void *hv_alloc_hyperv_zeroed_page(void); void hv_free_hyperv_page(unsigned long addr); void hyperv_reenlightenment_intr(struct pt_regs *regs); void set_hv_tscchange_cb(void (*cb)(void)); |