From: lantianyu1986@gmail.com
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Cc: Lan Tianyu <Tianyu.Lan@microsoft.com>,
christoffer.dall@arm.com, marc.zyngier@arm.com,
linux@armlinux.org, catalin.marinas@arm.com, will.deacon@arm.com,
jhogan@kernel.org, ralf@linux-mips.org, paul.burton@mips.com,
paulus@ozlabs.org, benh@kernel.crashing.org, mpe@ellerman.id.au,
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sthemmin@microsoft.com, tglx@linutronix.de, mingo@redhat.com,
hpa@zytor.com, x86@kernel.org, pbonzini@redhat.com,
rkrcmar@redhat.com, linux-arm-kernel@lists.infradead.org,
kvmarm@lists.cs.columbia.edu, linux-kernel@vger.kernel.org,
linux-mips@linux-mips.org, kvm-ppc@vger.kernel.org,
linuxppc-dev@lists.ozlabs.org, devel@linuxdriverproject.org,
kvm@vger.kernel.org, michael.h.kelley@microsoft.com,
vkuznets@redhat.com
Subject: [PATCH V4 2/15] KVM/MMU: Add tlb flush with range helper function
Date: Sat, 13 Oct 2018 22:53:53 +0800 [thread overview]
Message-ID: <20181013145406.4911-3-Tianyu.Lan@microsoft.com> (raw)
In-Reply-To: <20181013145406.4911-1-Tianyu.Lan@microsoft.com>
From: Lan Tianyu <Tianyu.Lan@microsoft.com>
This patch is to add wrapper functions for tlb_remote_flush_with_range
callback.
Signed-off-by: Lan Tianyu <Tianyu.Lan@microsoft.com>
---
Change sicne V3:
Remove code of updating "tlbs_dirty"
Change since V2:
Fix comment in the kvm_flush_remote_tlbs_with_range()
---
arch/x86/kvm/mmu.c | 40 ++++++++++++++++++++++++++++++++++++++++
1 file changed, 40 insertions(+)
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index c73d9f650de7..ff656d85903a 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -264,6 +264,46 @@ static void mmu_spte_set(u64 *sptep, u64 spte);
static union kvm_mmu_page_role
kvm_mmu_calc_root_page_role(struct kvm_vcpu *vcpu);
+
+static inline bool kvm_available_flush_tlb_with_range(void)
+{
+ return kvm_x86_ops->tlb_remote_flush_with_range;
+}
+
+static void kvm_flush_remote_tlbs_with_range(struct kvm *kvm,
+ struct kvm_tlb_range *range)
+{
+ int ret = -ENOTSUPP;
+
+ if (range && kvm_x86_ops->tlb_remote_flush_with_range)
+ ret = kvm_x86_ops->tlb_remote_flush_with_range(kvm, range);
+
+ if (ret)
+ kvm_flush_remote_tlbs(kvm);
+}
+
+static void kvm_flush_remote_tlbs_with_list(struct kvm *kvm,
+ struct list_head *flush_list)
+{
+ struct kvm_tlb_range range;
+
+ range.flush_list = flush_list;
+
+ kvm_flush_remote_tlbs_with_range(kvm, &range);
+}
+
+static void kvm_flush_remote_tlbs_with_address(struct kvm *kvm,
+ u64 start_gfn, u64 pages)
+{
+ struct kvm_tlb_range range;
+
+ range.start_gfn = start_gfn;
+ range.pages = pages;
+ range.flush_list = NULL;
+
+ kvm_flush_remote_tlbs_with_range(kvm, &range);
+}
+
void kvm_mmu_set_mmio_spte_mask(u64 mmio_mask, u64 mmio_value)
{
BUG_ON((mmio_mask & mmio_value) != mmio_value);
--
2.14.4
next prev parent reply other threads:[~2018-10-13 14:54 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-13 14:53 [PATCH V4 00/15] x86/KVM/Hyper-v: Add HV ept tlb range flush hypercall support in KVM lantianyu1986
2018-10-13 14:53 ` [PATCH V4 1/15] KVM: Add tlb_remote_flush_with_range callback in kvm_x86_ops lantianyu1986
2018-10-13 14:53 ` lantianyu1986 [this message]
2018-10-14 7:26 ` [PATCH V4 2/15] KVM/MMU: Add tlb flush with range helper function Liran Alon
2018-10-14 8:16 ` Thomas Gleixner
2018-10-14 9:20 ` Liran Alon
2018-10-14 12:57 ` Tianyu Lan
2018-10-14 9:27 ` Russell King - ARM Linux
2018-10-14 9:35 ` Russell King - ARM Linux
2018-10-14 13:21 ` Tianyu Lan
2018-10-14 13:33 ` Russell King - ARM Linux
2018-10-15 12:02 ` Paolo Bonzini
2018-10-13 14:53 ` [PATCH V4 3/15] KVM: Replace old tlb flush function with new one to flush a specified range lantianyu1986
2018-10-13 14:53 ` [PATCH V4 4/15] KVM: Make kvm_set_spte_hva() return int lantianyu1986
2018-10-13 14:53 ` [PATCH V4 5/15] KVM/MMU: Move tlb flush in kvm_set_pte_rmapp() to kvm_mmu_notifier_change_pte() lantianyu1986
2018-10-13 14:53 ` [PATCH V4 6/15] KVM/MMU: Flush tlb directly in the kvm_set_pte_rmapp() lantianyu1986
2018-10-15 11:52 ` Paolo Bonzini
2018-10-13 14:53 ` [PATCH V4 7/15] KVM/MMU: Flush tlb directly in the kvm_zap_gfn_range() lantianyu1986
2018-10-15 10:04 ` Paolo Bonzini
2018-10-15 13:08 ` Tianyu Lan
2018-10-13 14:53 ` [PATCH V4 8/15] KVM/MMU: Flush tlb directly in kvm_mmu_zap_collapsible_spte() lantianyu1986
2018-10-13 14:54 ` [PATCH V4 9/15] KVM: Add flush_link and parent_pte in the struct kvm_mmu_page lantianyu1986
2018-10-15 10:12 ` Paolo Bonzini
2018-10-13 14:54 ` [PATCH V4 10/15] KVM: Add spte's point " lantianyu1986
2018-10-13 14:54 ` [PATCH V4 11/15] KVM/MMU: Replace tlb flush function with range list flush function lantianyu1986
2018-10-15 11:51 ` Paolo Bonzini
2018-10-13 14:54 ` [PATCH V4 12/15] x86/hyper-v: Add HvFlushGuestAddressList hypercall support lantianyu1986
2018-10-15 10:30 ` Paolo Bonzini
2018-10-13 14:54 ` [PATCH V4 13/15] x86/Hyper-v: Add trace in the hyperv_nested_flush_guest_mapping_range() lantianyu1986
2018-10-13 14:54 ` [PATCH V4 14/15] KVM/VMX: Change hv flush logic when ept tables are mismatched lantianyu1986
2018-10-15 11:15 ` Paolo Bonzini
2018-10-13 14:54 ` [PATCH V4 15/15] KVM/VMX: Add hv tlb range flush support lantianyu1986
2018-10-15 12:04 ` [PATCH V4 00/15] x86/KVM/Hyper-v: Add HV ept tlb range flush hypercall support in KVM Paolo Bonzini
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