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OpenCloudOS-Kernel
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KVM: MMU: move local TLB flush to mmu_set_spte 

Since the sync page path can collapse flushes.

Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
This commit is contained in:
Marcelo Tosatti 2008-09-23 13:18:31 -03:00 committed by Avi Kivity
parent 1e73f9dd88
commit a378b4e64c
1 changed files with 4 additions and 4 deletions
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8
arch/x86/kvm/mmu.c
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@ -1189,10 +1189,8 @@ static int set_spte(struct kvm_vcpu *vcpu, u64 *shadow_pte,
__func__, gfn);
ret = 1;
pte_access &= ~ACC_WRITE_MASK;
if (is_writeble_pte(spte)) {
if (is_writeble_pte(spte))
spte &= ~PT_WRITABLE_MASK;
kvm_x86_ops->tlb_flush(vcpu);
}
}
}
@ -1241,9 +1239,11 @@ static void mmu_set_spte(struct kvm_vcpu *vcpu, u64 *shadow_pte,
}
}
if (set_spte(vcpu, shadow_pte, pte_access, user_fault, write_fault,
dirty, largepage, gfn, pfn, speculative))
dirty, largepage, gfn, pfn, speculative)) {
if (write_fault)
*ptwrite = 1;
kvm_x86_ops->tlb_flush(vcpu);
}
pgprintk("%s: setting spte %llx\n", __func__, *shadow_pte);
pgprintk("instantiating %s PTE (%s) at %ld (%llx) addr %p\n",