[PATCH v4 16/22] KVM: expose next_segment()
From: eric.auger@redhat.com (Eric Auger)
Date: 2017-03-27 09:31:06
Also in:
kvm, kvmarm
Subsystem:
kernel virtual machine (kvm), the rest · Maintainers:
Paolo Bonzini, Linus Torvalds
Expose next_segment() as we would like to reuse this routine in ARM vgic-its code. Signed-off-by: Eric Auger <eric.auger@redhat.com> --- include/linux/kvm_host.h | 8 ++++++++ virt/kvm/kvm_main.c | 8 -------- 2 files changed, 8 insertions(+), 8 deletions(-)
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index 2c14ad9..b4b5d82 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h@@ -92,6 +92,14 @@ static inline bool is_noslot_pfn(kvm_pfn_t pfn) return pfn == KVM_PFN_NOSLOT; } +static inline int next_segment(unsigned long len, int offset) +{ + if (len > PAGE_SIZE - offset) + return PAGE_SIZE - offset; + else + return len; +} + /* * architectures with KVM_HVA_ERR_BAD other than PAGE_OFFSET (e.g. s390) * provide own defines and kvm_is_error_hva
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index a17d787..b825e86 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c@@ -1738,14 +1738,6 @@ void kvm_get_pfn(kvm_pfn_t pfn) } EXPORT_SYMBOL_GPL(kvm_get_pfn); -static int next_segment(unsigned long len, int offset) -{ - if (len > PAGE_SIZE - offset) - return PAGE_SIZE - offset; - else - return len; -} - static int __kvm_read_guest_page(struct kvm_memory_slot *slot, gfn_t gfn, void *data, int offset, int len) {
--
2.5.5