#define KVM_PFN_ERR_FAULT (KVM_PFN_ERR_MASK)
#define KVM_PFN_ERR_HWPOISON (KVM_PFN_ERR_MASK + 1)
#define KVM_PFN_ERR_RO_FAULT (KVM_PFN_ERR_MASK + 2)
+#define KVM_PFN_ERR_SIGPENDING (KVM_PFN_ERR_MASK + 3)
/*
* error pfns indicate that the gfn is in slot but faild to
}
/*
+ * KVM_PFN_ERR_SIGPENDING indicates that fetching the PFN was interrupted
+ * by a pending signal. Note, the signal may or may not be fatal.
+ */
+static inline bool is_sigpending_pfn(kvm_pfn_t pfn)
+{
+ return pfn == KVM_PFN_ERR_SIGPENDING;
+}
+
+/*
* error_noslot pfns indicate that the gfn can not be
* translated to pfn - it is not in slot or failed to
* translate it to pfn.
npages = hva_to_pfn_slow(addr, async, write_fault, writable, &pfn);
if (npages == 1)
return pfn;
+ if (npages == -EINTR)
+ return KVM_PFN_ERR_SIGPENDING;
mmap_read_lock(current->mm);
if (npages == -EHWPOISON ||