diff options
Diffstat (limited to 'include/linux/kvm_host.h')
| -rw-r--r-- | include/linux/kvm_host.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h index d44a2d6..45aaeb3 100644 --- a/include/linux/kvm_host.h +++ b/include/linux/kvm_host.h @@ -198,6 +198,17 @@ int kvm_setup_async_pf(struct kvm_vcpu *vcpu, gva_t gva, unsigned long hva, int kvm_async_pf_wakeup_all(struct kvm_vcpu *vcpu); #endif +/* + * Carry out a gup that requires IO. Allow the mm to relinquish the mmap + * semaphore if the filemap/swap has to wait on a page lock. pagep == NULL + * controls whether we retry the gup one more time to completion in that case. + * Typically this is called after a FAULT_FLAG_RETRY_NOWAIT in the main tdp + * handler. + */ +int kvm_get_user_page_io(struct task_struct *tsk, struct mm_struct *mm, + unsigned long addr, bool write_fault, + struct page **pagep); + enum { OUTSIDE_GUEST_MODE, IN_GUEST_MODE, |
