On Tue, Nov 30, 2010 at 05:37:36PM +0800, Xiao Guangrong wrote: > Retry #PF for softmmu only when the current vcpu has the same root shadow page > as the time when #PF occurs. it means they have same paging environment > > Signed-off-by: Xiao Guangrong <[email protected]> > --- > arch/x86/include/asm/kvm_host.h | 5 +++++ > arch/x86/kvm/mmu.c | 33 ++++++++++++++++++++++++++++++++- > arch/x86/kvm/paging_tmpl.h | 34 +++++++++++++++++++++++----------- > arch/x86/kvm/x86.c | 13 ++++++++++++- > virt/kvm/async_pf.c | 1 + > 5 files changed, 73 insertions(+), 13 deletions(-) > > diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h > index 209da89..5acbcab 100644 > --- a/arch/x86/include/asm/kvm_host.h > +++ b/arch/x86/include/asm/kvm_host.h > @@ -191,6 +191,7 @@ union kvm_mmu_page_role { > struct kvm_mmu_page { > struct list_head link; > struct hlist_node hash_link; > + struct kref apfs_counter; > > /* > * The following two entries are used to key the shadow page in the > @@ -602,6 +603,7 @@ struct kvm_x86_ops { > struct kvm_arch_async_pf { > u32 token; > gfn_t gfn; > + struct kvm_mmu_page *root_sp; > bool direct_map; > };
Can't you just compare cr3 value? Its harmless to instantiate an spte for an unused translation. -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
