diff options
| author | Zhang Xiantao | 2007-11-18 13:29:43 +0100 |
|---|---|---|
| committer | Avi Kivity | 2008-01-30 16:53:05 +0100 |
| commit | 5bb064dcdeb7ab341e2f8a3e2fc34faa63b1662c (patch) | |
| tree | abb976bd8e6f79fca02aeadad31269f281f71c16 /drivers/kvm/kvm_main.c | |
| parent | KVM: Make unloading of FPU state when putting vcpu arch-independent (diff) | |
| download | kernel-qcow2-linux-5bb064dcdeb7ab341e2f8a3e2fc34faa63b1662c.tar.gz kernel-qcow2-linux-5bb064dcdeb7ab341e2f8a3e2fc34faa63b1662c.tar.xz kernel-qcow2-linux-5bb064dcdeb7ab341e2f8a3e2fc34faa63b1662c.zip | |
KVM: Portability: Move kvm_vcpu_ioctl_get_dirty_log to arch-specific file
Meanwhile keep the interface in common, and leave as more logic in common
as possible.
Signed-off-by: Zhang Xiantao <xiantao.zhang@intel.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
Diffstat (limited to 'drivers/kvm/kvm_main.c')
| -rw-r--r-- | drivers/kvm/kvm_main.c | 19 |
1 files changed, 4 insertions, 15 deletions
diff --git a/drivers/kvm/kvm_main.c b/drivers/kvm/kvm_main.c index b0b6ff2a8cbe..5f11e6b09458 100644 --- a/drivers/kvm/kvm_main.c +++ b/drivers/kvm/kvm_main.c @@ -389,19 +389,14 @@ int kvm_vm_ioctl_set_memory_region(struct kvm *kvm, return kvm_set_memory_region(kvm, mem, user_alloc); } -/* - * Get (and clear) the dirty memory log for a memory slot. - */ -static int kvm_vm_ioctl_get_dirty_log(struct kvm *kvm, - struct kvm_dirty_log *log) +int kvm_get_dirty_log(struct kvm *kvm, + struct kvm_dirty_log *log, int *is_dirty) { struct kvm_memory_slot *memslot; int r, i; int n; unsigned long any = 0; - mutex_lock(&kvm->lock); - r = -EINVAL; if (log->slot >= KVM_MEMORY_SLOTS) goto out; @@ -420,17 +415,11 @@ static int kvm_vm_ioctl_get_dirty_log(struct kvm *kvm, if (copy_to_user(log->dirty_bitmap, memslot->dirty_bitmap, n)) goto out; - /* If nothing is dirty, don't bother messing with page tables. */ - if (any) { - kvm_mmu_slot_remove_write_access(kvm, log->slot); - kvm_flush_remote_tlbs(kvm); - memset(memslot->dirty_bitmap, 0, n); - } + if (any) + *is_dirty = 1; r = 0; - out: - mutex_unlock(&kvm->lock); return r; } |