From: Paolo Bonzini <pbonzini@redhat.com>
To: Alex Williamson <alex.williamson@redhat.com>
Cc: "Sean Christopherson" <sean.j.christopherson@intel.com>,
"Radim Krčmář" <rkrcmar@redhat.com>,
kvm@vger.kernel.org, "Xiao Guangrong" <guangrong.xiao@gmail.com>
Subject: Re: [PATCH v2 11/27] KVM: x86/mmu: Zap only the relevant pages when removing a memslot
Date: Tue, 13 Aug 2019 23:15:38 +0200 [thread overview]
Message-ID: <f8119b68-bf75-9e01-e799-0c1cf965ba83@redhat.com> (raw)
In-Reply-To: <20190813151417.2cf979ca@x1.home>
On 13/08/19 23:14, Alex Williamson wrote:
>> Do we even need the call to slot_handle_all_level? The rmap update
>> should be done already by kvm_mmu_prepare_zap_page (via
>> kvm_mmu_page_unlink_children -> mmu_page_zap_pte -> drop_spte).
>>
>> Alex, can you replace it with just "flush = false;"?
> Replace the continue w/ flush = false? I'm not clear on this
> suggestion. Thanks,
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index 24843cf49579..382b3ee303e3 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -5664,7 +5668,7 @@ kvm_mmu_invalidate_zap_pages_in_memslot(struct kvm
if (list_empty(&kvm->arch.active_mmu_pages))
goto out_unlock;
- flush = slot_handle_all_level(kvm, slot, kvm_zap_rmapp, false);
+ flush = false;
for (i = 0; i < slot->npages; i++) {
gfn = slot->base_gfn + i;
next prev parent reply other threads:[~2019-08-13 21:15 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-05 20:54 [PATCH v2 00/27] KVM: x86/mmu: Remove fast invalidate mechanism Sean Christopherson
2019-02-05 20:54 ` [PATCH v2 01/27] KVM: Call kvm_arch_memslots_updated() before updating memslots Sean Christopherson
2019-02-06 9:12 ` Cornelia Huck
2019-02-12 12:36 ` [PATCH v2 00/27] KVM: x86/mmu: Remove fast invalidate mechanism Paolo Bonzini
[not found] ` <20190205210137.1377-11-sean.j.christopherson@intel.com>
2019-08-13 16:04 ` [PATCH v2 11/27] KVM: x86/mmu: Zap only the relevant pages when removing a memslot Alex Williamson
2019-08-13 17:04 ` Sean Christopherson
2019-08-13 17:57 ` Alex Williamson
2019-08-13 19:33 ` Alex Williamson
2019-08-13 20:19 ` Sean Christopherson
2019-08-13 20:37 ` Paolo Bonzini
2019-08-13 21:14 ` Alex Williamson
2019-08-13 21:15 ` Paolo Bonzini [this message]
2019-08-13 22:10 ` Alex Williamson
2019-08-15 14:46 ` Sean Christopherson
2019-08-15 15:23 ` Alex Williamson
2019-08-15 16:00 ` Sean Christopherson
2019-08-15 18:16 ` Alex Williamson
2019-08-15 19:25 ` Sean Christopherson
2019-08-15 20:11 ` Alex Williamson
2019-08-19 16:03 ` Paolo Bonzini
2019-08-20 20:03 ` Sean Christopherson
2019-08-20 20:42 ` Alex Williamson
2019-08-20 21:02 ` Sean Christopherson
2019-08-21 19:08 ` Alex Williamson
2019-08-21 19:35 ` Alex Williamson
2019-08-21 20:30 ` Sean Christopherson
2019-08-23 2:25 ` Sean Christopherson
2019-08-23 22:05 ` Alex Williamson
2019-08-21 20:10 ` Sean Christopherson
2019-08-26 7:36 ` Tian, Kevin
2019-08-26 14:56 ` Sean Christopherson
2020-06-26 17:32 ` Sean Christopherson
2022-10-20 18:31 ` Alexander Graf
2022-10-20 20:37 ` Sean Christopherson
2022-10-20 21:06 ` Alexander Graf
2022-10-21 19:40 ` Sean Christopherson
2022-10-24 6:12 ` Alexander Graf
2022-10-24 15:55 ` Sean Christopherson
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