Kernel KVM virtualization development
 help / color / mirror / Atom feed
From: Yosry Ahmed <yosry@kernel.org>
To: Sean Christopherson <seanjc@google.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>,
	Jim Mattson <jmattson@google.com>,
	Maxim Levitsky <mlevitsk@redhat.com>,
	Vitaly Kuznetsov <vkuznets@redhat.com>,
	Tom Lendacky <thomas.lendacky@amd.com>,
	kvm@vger.kernel.org, linux-kernel@vger.kernel.org,
	Yosry Ahmed <yosry@kernel.org>
Subject: [RFC PATCH v2 11/25] KVM: x86: hyper-v: Rename kvm_hv_vcpu_purge_flush_tlb()
Date: Tue, 16 Jun 2026 00:41:40 +0000	[thread overview]
Message-ID: <20260616004155.1435766-12-yosry@kernel.org> (raw)
In-Reply-To: <20260616004155.1435766-1-yosry@kernel.org>

Rename kvm_hv_vcpu_purge_flush_tlb() to kvm_hv_purge_tlb_flush_fifo() to
clarify that it purges the TLB flush FIFO, not purge *and* flush the
TLB.

No functional change intended.

Suggested-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Yosry Ahmed <yosry@kernel.org>
---
 arch/x86/kvm/hyperv.h  | 4 ++--
 arch/x86/kvm/svm/svm.c | 2 +-
 arch/x86/kvm/x86.c     | 2 +-
 3 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/x86/kvm/hyperv.h b/arch/x86/kvm/hyperv.h
index 65e89ed653497..a5c52e4b24b2a 100644
--- a/arch/x86/kvm/hyperv.h
+++ b/arch/x86/kvm/hyperv.h
@@ -204,7 +204,7 @@ static inline struct kvm_vcpu_hv_tlb_flush_fifo *kvm_hv_get_tlb_flush_fifo(struc
 	return &hv_vcpu->tlb_flush_fifo[i];
 }
 
-static inline void kvm_hv_vcpu_purge_flush_tlb(struct kvm_vcpu *vcpu)
+static inline void kvm_hv_purge_tlb_flush_fifo(struct kvm_vcpu *vcpu)
 {
 	struct kvm_vcpu_hv_tlb_flush_fifo *tlb_flush_fifo;
 
@@ -286,7 +286,7 @@ static inline int kvm_hv_hypercall(struct kvm_vcpu *vcpu)
 {
 	return HV_STATUS_ACCESS_DENIED;
 }
-static inline void kvm_hv_vcpu_purge_flush_tlb(struct kvm_vcpu *vcpu) {}
+static inline void kvm_hv_purge_tlb_flush_fifo(struct kvm_vcpu *vcpu) {}
 static inline bool kvm_hv_synic_has_vector(struct kvm_vcpu *vcpu, int vector)
 {
 	return false;
diff --git a/arch/x86/kvm/svm/svm.c b/arch/x86/kvm/svm/svm.c
index fae5cb7102010..dac3d0098bb77 100644
--- a/arch/x86/kvm/svm/svm.c
+++ b/arch/x86/kvm/svm/svm.c
@@ -4173,7 +4173,7 @@ static void svm_flush_tlb_asid(struct kvm_vcpu *vcpu)
 	 * A TLB flush for the current ASID flushes both "host" and "guest" TLB
 	 * entries, and thus is a superset of Hyper-V's fine grained flushing.
 	 */
-	kvm_hv_vcpu_purge_flush_tlb(vcpu);
+	kvm_hv_purge_tlb_flush_fifo(vcpu);
 
 	/*
 	 * Flush only the current ASID even if the TLB flush was invoked via
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index cf122b8c32103..e67cdca8cc48f 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -3690,7 +3690,7 @@ static void kvm_vcpu_flush_tlb_guest(struct kvm_vcpu *vcpu)
 	 * Flushing all "guest" TLB is always a superset of Hyper-V's fine
 	 * grained flushing.
 	 */
-	kvm_hv_vcpu_purge_flush_tlb(vcpu);
+	kvm_hv_purge_tlb_flush_fifo(vcpu);
 }
 
 
-- 
2.54.0.1136.gdb2ca164c4-goog


  parent reply	other threads:[~2026-06-16  0:42 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-06-16  0:41 [RFC PATCH v2 00/25] Optimize nSVM TLB flushes Yosry Ahmed
2026-06-16  0:41 ` [RFC PATCH v2 01/25] KVM: nSVM: Flush the TLB after forcefully leaving nested Yosry Ahmed
2026-06-16  0:41 ` [RFC PATCH v2 02/25] KVM: SVM: Passthrough the number of supported ASIDs Yosry Ahmed
2026-06-16  0:41 ` [RFC PATCH v2 03/25] KVM: VMX: Generalize VPID allocation to be vendor-neutral Yosry Ahmed
2026-06-16  0:41 ` [RFC PATCH v2 04/25] KVM: x86/mmu: Support specifying a minimum TLB tag Yosry Ahmed
2026-06-16  0:41 ` [RFC PATCH v2 05/25] KVM: SVM: Add helpers to set/clear ASID flush in VMCB Yosry Ahmed
2026-06-16  0:41 ` [RFC PATCH v2 06/25] KVM: SVM: Fallback to flush everything if FLUSHBYASID is not available Yosry Ahmed
2026-06-16  0:41 ` [RFC PATCH v2 07/25] KVM: SVM: Duplicate pre-run ASID check for SEV and non-SEV guests Yosry Ahmed
2026-06-16  0:41 ` [RFC PATCH v2 08/25] KVM: SEV: Stop using per-vCPU ASID for SEV VMs Yosry Ahmed
2026-06-16  1:06   ` sashiko-bot
2026-06-16  0:41 ` [RFC PATCH v2 09/25] KVM: SVM: Use a static ASID per vCPU Yosry Ahmed
2026-06-16  1:08   ` sashiko-bot
2026-06-16  0:41 ` [RFC PATCH v2 10/25] KVM: nSVM: Add a placeholder ASID for L2 Yosry Ahmed
2026-06-16  0:41 ` Yosry Ahmed [this message]
2026-06-16  0:41 ` [RFC PATCH v2 12/25] KVM: x86: hyper-v: Allow puring all TLB flush FIFOs Yosry Ahmed
2026-06-16  0:41 ` [RFC PATCH v2 13/25] KVM: nSVM: Flush both L1 and L2 ASIDs on KVM_REQ_TLB_FLUSH Yosry Ahmed
2026-06-16  1:05   ` sashiko-bot
2026-06-16  0:41 ` [RFC PATCH v2 14/25] KVM: nSVM: Move svm_switch_vmcb() to nested.c Yosry Ahmed
2026-06-16  0:41 ` [RFC PATCH v2 15/25] KVM: nSVM: Call nested_svm_transition_tlb_flush() on every VMCB switch Yosry Ahmed
2026-06-16  0:41 ` [RFC PATCH v2 16/25] KVM: nSVM: Split nested_svm_transition_tlb_flush() into entry/exit fns Yosry Ahmed
2026-06-16  0:41 ` [RFC PATCH v2 17/25] KVM: nSVM: Service local TLB flushes before nested transitions Yosry Ahmed
2026-06-16  1:20   ` sashiko-bot
2026-06-16  0:41 ` [RFC PATCH v2 18/25] KVM: nSVM: Handle nested TLB flush requests through TLB_CONTROL Yosry Ahmed
2026-06-16  0:41 ` [RFC PATCH v2 19/25] KVM: nSVM: Flush the TLB if L1 changes L2's ASID in vmcb12 Yosry Ahmed
2026-06-16  0:41 ` [RFC PATCH v2 20/25] KVM: nSVM: Do not reset TLB_CONTROL in vmcb02 on nested VM-Enter Yosry Ahmed
2026-06-16  0:41 ` [RFC PATCH v2 21/25] KVM: x86/mmu: rename __kvm_mmu_invalidate_addr() Yosry Ahmed
2026-06-16  0:41 ` [RFC PATCH v2 22/25] KVM: x86/mmu: Refactor kvm_mmu_invlpg() to allow skipping the gva flush Yosry Ahmed
2026-06-16  0:41 ` [RFC PATCH v2 23/25] KVM: nSVM: Flush L2's ASID when emulating INVLPGA Yosry Ahmed
2026-06-16  0:41 ` [RFC PATCH v2 24/25] KVM: nSVM: Use different ASIDs for L1 and L2 Yosry Ahmed
2026-06-16  1:30   ` sashiko-bot
2026-06-16  0:41 ` [RFC PATCH v2 25/25] DO NOT MERGE: Add nested_tlb_force_flush Yosry Ahmed
2026-06-16  1:21   ` sashiko-bot

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20260616004155.1435766-12-yosry@kernel.org \
    --to=yosry@kernel.org \
    --cc=jmattson@google.com \
    --cc=kvm@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=mlevitsk@redhat.com \
    --cc=pbonzini@redhat.com \
    --cc=seanjc@google.com \
    --cc=thomas.lendacky@amd.com \
    --cc=vkuznets@redhat.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox