提交 6a49f85c 编写于 作者: X Xiao Guangrong 提交者: Paolo Bonzini

KVM: MMU: introduce kvm_zap_rmapp

Split kvm_unmap_rmapp and introduce kvm_zap_rmapp which will be used in the
later patch
Signed-off-by: NXiao Guangrong <guangrong.xiao@linux.intel.com>
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
上级 d77aa73c
......@@ -1349,24 +1349,28 @@ static bool rmap_write_protect(struct kvm *kvm, u64 gfn)
return write_protected;
}
static int kvm_unmap_rmapp(struct kvm *kvm, unsigned long *rmapp,
struct kvm_memory_slot *slot, gfn_t gfn, int level,
unsigned long data)
static bool kvm_zap_rmapp(struct kvm *kvm, unsigned long *rmapp)
{
u64 *sptep;
struct rmap_iterator iter;
int need_tlb_flush = 0;
bool flush = false;
while ((sptep = rmap_get_first(*rmapp, &iter))) {
BUG_ON(!(*sptep & PT_PRESENT_MASK));
rmap_printk("kvm_rmap_unmap_hva: spte %p %llx gfn %llx (%d)\n",
sptep, *sptep, gfn, level);
rmap_printk("%s: spte %p %llx.\n", __func__, sptep, *sptep);
drop_spte(kvm, sptep);
need_tlb_flush = 1;
flush = true;
}
return need_tlb_flush;
return flush;
}
static int kvm_unmap_rmapp(struct kvm *kvm, unsigned long *rmapp,
struct kvm_memory_slot *slot, gfn_t gfn, int level,
unsigned long data)
{
return kvm_zap_rmapp(kvm, rmapp);
}
static int kvm_set_pte_rmapp(struct kvm *kvm, unsigned long *rmapp,
......
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