From: lantianyu1986@gmail.com
To: unlisted-recipients:; (no To-header on input)
Cc: Lan Tianyu <Tianyu.Lan@microsoft.com>,
pbonzini@redhat.com, rkrcmar@redhat.com, tglx@linutronix.de,
mingo@redhat.com, bp@alien8.de, hpa@zytor.com, x86@kernel.org,
kvm@vger.kernel.org, linux-kernel@vger.kernel.org,
michael.h.kelley@microsoft.com, kys@microsoft.com,
vkuznets@redhat.com, linux@armlinux.org.uk
Subject: [PATCH 11/11] KVM/MMU: Flush tlb in the kvm_age_rmapp()
Date: Fri, 4 Jan 2019 16:54:05 +0800 [thread overview]
Message-ID: <20190104085405.40356-12-Tianyu.Lan@microsoft.com> (raw)
In-Reply-To: <20190104085405.40356-1-Tianyu.Lan@microsoft.com>
From: Lan Tianyu <Tianyu.Lan@microsoft.com>
This patch is to flush tlb in the kvm_age_rmapp() when tlb range flush
is available and flush request is true.
Signed-off-by: Lan Tianyu <Tianyu.Lan@microsoft.com>
---
arch/x86/kvm/mmu.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index a5728f51bf7d..bc402a72956a 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -1958,10 +1958,17 @@ static int kvm_age_rmapp(struct kvm *kvm, struct kvm_rmap_head *rmap_head,
u64 *sptep;
struct rmap_iterator uninitialized_var(iter);
int young = 0;
+ bool flush = (bool)data;
for_each_rmap_spte(rmap_head, &iter, sptep)
young |= mmu_spte_age(sptep);
+ if (young && flush) {
+ kvm_flush_remote_tlbs_with_address(kvm, gfn,
+ KVM_PAGES_PER_HPAGE(level));
+ young = 0;
+ }
+
trace_kvm_age_page(gfn, level, slot, young);
return young;
}
--
2.14.4
next prev parent reply other threads:[~2019-01-04 8:55 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-04 8:53 [PATCH 00/11] X86/KVM/Hyper-V: Add HV ept tlb range list flush support in KVM lantianyu1986
2019-01-04 8:53 ` [PATCH 1/11] X86/Hyper-V: Add parameter offset for hyperv_fill_flush_guest_mapping_list() lantianyu1986
2019-01-04 8:53 ` [PATCH 2/11] KVM/VMX: Fill range list in kvm_fill_hv_flush_list_func() lantianyu1986
2019-01-04 8:53 ` [PATCH 3/11] KVM: Add spte's point in the struct kvm_mmu_page lantianyu1986
2019-01-07 16:34 ` Paolo Bonzini
2019-01-04 8:53 ` [PATCH 4/11] KVM/MMU: Introduce tlb flush with range list lantianyu1986
2019-01-07 16:39 ` Paolo Bonzini
2019-01-04 8:53 ` [PATCH 5/11] KVM/MMU: Flush tlb directly in the kvm_mmu_slot_gfn_write_protect() lantianyu1986
2019-01-04 8:54 ` [PATCH 6/11] KVM/MMU: Flush tlb with range list in sync_page() lantianyu1986
[not found] ` <20190104163035.GC11288@linux.intel.com>
2019-01-07 5:13 ` Tianyu Lan
2019-01-07 16:07 ` Paolo Bonzini
2019-01-04 8:54 ` [PATCH 7/11] KVM: Remove redundant check in the kvm_get_dirty_log_protect() lantianyu1986
[not found] ` <20190104155036.GA11288@linux.intel.com>
2019-01-04 21:27 ` Sean Christopherson
2019-01-07 16:20 ` Paolo Bonzini
2019-01-04 8:54 ` [PATCH 8/11] KVM: Make kvm_arch_mmu_enable_log_dirty_pt_masked() return value lantianyu1986
2019-01-04 8:54 ` [PATCH 9/11] KVM/MMU: Flush tlb in the kvm_mmu_write_protect_pt_masked() lantianyu1986
2019-01-07 16:26 ` Paolo Bonzini
2019-01-10 9:06 ` Tianyu Lan
2019-01-04 8:54 ` [PATCH 10/11] KVM: Add flush parameter for kvm_age_hva() lantianyu1986
2019-01-04 8:54 ` lantianyu1986 [this message]
[not found] ` <20190104161235.GB11288@linux.intel.com>
2019-01-07 3:42 ` [PATCH 11/11] KVM/MMU: Flush tlb in the kvm_age_rmapp() Tianyu Lan
2019-01-07 16:31 ` Paolo Bonzini
2019-01-08 3:42 ` Tianyu Lan
2019-01-08 11:52 ` Paolo Bonzini
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