From: Tianyu Lan <Tianyu.Lan@microsoft.com>
To: unlisted-recipients:; (no To-header on input)
Cc: Tianyu Lan <Tianyu.Lan@microsoft.com>,
KY Srinivasan <kys@microsoft.com>,
Haiyang Zhang <haiyangz@microsoft.com>,
Stephen Hemminger <sthemmin@microsoft.com>,
"tglx@linutronix.de" <tglx@linutronix.de>,
"mingo@redhat.com" <mingo@redhat.com>,
"hpa@zytor.com" <hpa@zytor.com>,
"x86@kernel.org" <x86@kernel.org>,
"pbonzini@redhat.com" <pbonzini@redhat.com>,
"rkrcmar@redhat.com" <rkrcmar@redhat.com>,
"devel@linuxdriverproject.org" <devel@linuxdriverproject.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"kvm@vger.kernel.org" <kvm@vger.kernel.org>,
"Michael Kelley (EOSG)" <Michael.H.Kelley@microsoft.com>,
vkuznets <vkuznets@redhat.com>,
Jork Loeser <Jork.Loeser@microsoft.com>
Subject: [PATCH V2 1/13] KVM: Add tlb_remote_flush_with_range callback in kvm_x86_ops
Date: Tue, 18 Sep 2018 03:18:17 +0000 [thread overview]
Message-ID: <20180918031754.113013-2-Tianyu.Lan@microsoft.com> (raw)
In-Reply-To: <20180918031754.113013-1-Tianyu.Lan@microsoft.com>
Add flush range call back in the kvm_x86_ops and platform can use it
to register its associated function. The parameter "kvm_tlb_range"
accepts a single range and flush list which contains a list of ranges.
Signed-off-by: Lan Tianyu <Tianyu.Lan@microsoft.com>
---
Change since v1:
Change "end_gfn" to "pages" to aviod confusion as to whether
"end_gfn" is inclusive or exlusive.
---
arch/x86/include/asm/kvm_host.h | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index 8e90488c3d56..a6b77978502e 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -402,6 +402,12 @@ struct kvm_mmu {
u64 pdptrs[4]; /* pae */
};
+struct kvm_tlb_range {
+ u64 start_gfn;
+ u64 pages;
+ struct list_head *flush_list;
+};
+
enum pmc_type {
KVM_PMC_GP = 0,
KVM_PMC_FIXED,
@@ -991,6 +997,8 @@ struct kvm_x86_ops {
void (*tlb_flush)(struct kvm_vcpu *vcpu, bool invalidate_gpa);
int (*tlb_remote_flush)(struct kvm *kvm);
+ int (*tlb_remote_flush_with_range)(struct kvm *kvm,
+ struct kvm_tlb_range *range);
/*
* Flush any TLB entries associated with the given GVA.
--
2.14.4
next prev parent reply other threads:[~2018-09-18 3:18 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-09-18 3:18 [PATCH V2 00/13] x86/KVM/Hyper-v: Add HV ept tlb range flush hypercall support in KVM Tianyu Lan
2018-09-18 3:18 ` Tianyu Lan [this message]
2018-09-18 3:18 ` [PATCH V2 2/13] KVM/MMU: Add tlb flush with range helper function Tianyu Lan
2018-09-19 16:07 ` Michael Kelley (EOSG)
2018-09-18 3:18 ` [PATCH V2 3/13] KVM: Replace old tlb flush function with new one to flush a specified range Tianyu Lan
2018-09-18 3:18 ` [PATCH V2 4/13] KVM/MMU: Flush tlb directly in the kvm_handle_hva_range() Tianyu Lan
2018-09-19 16:08 ` Michael Kelley (EOSG)
2018-09-20 14:30 ` Tianyu Lan
2018-09-20 19:05 ` Michael Kelley (EOSG)
2018-09-18 3:18 ` [PATCH V2 5/13] KVM/MMU: Flush tlb directly in the kvm_zap_gfn_range() Tianyu Lan
2018-09-18 3:18 ` [PATCH V2 6/13] KVM/MMU: Flush tlb directly in kvm_mmu_zap_collapsible_spte() Tianyu Lan
2018-09-18 3:18 ` [PATCH V2 7/13] KVM: Add flush_link and parent_pte in the struct kvm_mmu_page Tianyu Lan
2018-09-18 3:19 ` [PATCH V2 8/13] KVM: Add spte's point " Tianyu Lan
2018-09-18 3:19 ` [PATCH V2 9/13] KVM/MMU: Replace tlb flush function with range list flush function Tianyu Lan
2018-09-18 3:19 ` [PATCH V2 10/13] x86/hyper-v: Add HvFlushGuestAddressList hypercall support Tianyu Lan
2018-09-19 17:00 ` Michael Kelley (EOSG)
2018-09-18 3:19 ` [PATCH V2 11/13] x86/Hyper-v: Add trace in the hyperv_nested_flush_guest_mapping_range() Tianyu Lan
2018-09-18 3:19 ` [PATCH V2 12/13] KVM/VMX: Change hv flush logic when ept tables are mismatched Tianyu Lan
2018-09-18 3:19 ` [PATCH V2 13/13] KVM/VMX: Add hv tlb range flush support Tianyu Lan
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