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authorXiao Guangrong <xiaoguangrong@cn.fujitsu.com>2010-08-22 19:11:43 +0800
committerAvi Kivity <avi@redhat.com>2010-10-24 10:51:26 +0200
commit48987781eb1d1e8ded41f55cd5806615fda92c6e (patch)
treefa6db806ffec34588fbcaa434c33afac51f661e6 /include/linux/kvm_host.h
parent887c08ac191efb103e33e589aacbc2ce1a3f131e (diff)
downloadop-kernel-dev-48987781eb1d1e8ded41f55cd5806615fda92c6e.zip
op-kernel-dev-48987781eb1d1e8ded41f55cd5806615fda92c6e.tar.gz
KVM: MMU: introduce gfn_to_page_many_atomic() function
Introduce this function to get consecutive gfn's pages, it can reduce gup's overload, used by later patch Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Diffstat (limited to 'include/linux/kvm_host.h')
-rw-r--r--include/linux/kvm_host.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index 307d0e2..b837ec8 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -289,6 +289,9 @@ void kvm_arch_commit_memory_region(struct kvm *kvm,
void kvm_disable_largepages(void);
void kvm_arch_flush_shadow(struct kvm *kvm);
+int gfn_to_page_many_atomic(struct kvm *kvm, gfn_t gfn, struct page **pages,
+ int nr_pages);
+
struct page *gfn_to_page(struct kvm *kvm, gfn_t gfn);
unsigned long gfn_to_hva(struct kvm *kvm, gfn_t gfn);
void kvm_release_page_clean(struct page *page);
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