Rusty Russell 39214915f5 KVM: kvm_vm_ioctl_get_dirty_log restore "nothing dirty" optimization ... kvm_vm_ioctl_get_dirty_log scans bitmap to see it it's all zero, but doesn't use that information. Avi says: Looks like it was used to guard kvm_mmu_slot_remove_write_access(); optimizing the case where the guest just leaves the screen alone (which it usually does, especially in benchmarks). I'd rather reinstate that optimization. See 90cb0529dd where the damage was done. It's pretty simple: if the bitmap is all zero, we don't need to do anything to clean it. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Avi Kivity <avi@qumranet.com>		2007-10-13 10:18:21 +02:00
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Kconfig	KVM: Use the scheduler preemption notifiers to make kvm preemptible	2007-10-13 10:18:20 +02:00
kvm_main.c	KVM: kvm_vm_ioctl_get_dirty_log restore "nothing dirty" optimization	2007-10-13 10:18:21 +02:00
kvm_svm.h	KVM: Dynamically allocate vcpus	2007-10-13 10:18:20 +02:00
kvm.h	KVM: Use alignment properties of vcpu to simplify FPU ops	2007-10-13 10:18:21 +02:00
Makefile	[PATCH] kvm: userspace interface	2006-12-10 09:57:22 -08:00
mmu.c	KVM: Convert vm lock to a mutex	2007-10-13 10:18:20 +02:00
paging_tmpl.h	KVM: Move gfn_to_page out of kmap/unmap pairs	2007-10-13 10:18:19 +02:00
segment_descriptor.h	[PATCH] kvm: userspace interface	2006-12-10 09:57:22 -08:00
svm.c	KVM: Use alignment properties of vcpu to simplify FPU ops	2007-10-13 10:18:21 +02:00
svm.h	KVM: SVM: Reliably detect if SVM was disabled by BIOS	2007-07-16 12:05:49 +03:00
vmx.c	KVM: Use kmem cache for allocating vcpus	2007-10-13 10:18:21 +02:00
vmx.h	KVM: VMX: Import some constants of vmcs from IA32 SDM	2007-10-13 10:18:19 +02:00
x86_emulate.c	KVM: Change the emulator_{read,write,cmpxchg}_* functions to take a vcpu	2007-10-13 10:18:21 +02:00
x86_emulate.h	KVM: Change the emulator_{read,write,cmpxchg}_* functions to take a vcpu	2007-10-13 10:18:21 +02:00