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From: Lai Jiangshan <jiangshanlai@gmail.com>
To: linux-kernel@vger.kernel.org
Cc: Paolo Bonzini <pbonzini@redhat.com>,
	Sean Christopherson <seanjc@google.com>,
	Lai Jiangshan <jiangshan.ljs@antgroup.com>,
	Thomas Gleixner <tglx@linutronix.de>,
	Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
	Dave Hansen <dave.hansen@linux.intel.com>,
	x86@kernel.org, "H. Peter Anvin" <hpa@zytor.com>,
	kvm@vger.kernel.org
Subject: [PATCH V3 09/14] kvm: x86/mmu: Use kvm_mmu_invalidate_addr() in kvm_mmu_invpcid_gva()
Date: Thu, 16 Feb 2023 23:41:15 +0800	[thread overview]
Message-ID: <20230216154115.710033-10-jiangshanlai@gmail.com> (raw)
In-Reply-To: <20230216154115.710033-1-jiangshanlai@gmail.com>

From: Lai Jiangshan <jiangshan.ljs@antgroup.com>

Use kvm_mmu_invalidate_addr() instead open calls to mmu->invlpg().

No functional change intended.

Signed-off-by: Lai Jiangshan <jiangshan.ljs@antgroup.com>
---
 arch/x86/kvm/mmu/mmu.c | 21 +++++++--------------
 1 file changed, 7 insertions(+), 14 deletions(-)

diff --git a/arch/x86/kvm/mmu/mmu.c b/arch/x86/kvm/mmu/mmu.c
index 9f261e444a32..c48f98fbd6ae 100644
--- a/arch/x86/kvm/mmu/mmu.c
+++ b/arch/x86/kvm/mmu/mmu.c
@@ -5814,27 +5814,20 @@ EXPORT_SYMBOL_GPL(kvm_mmu_invlpg);
 void kvm_mmu_invpcid_gva(struct kvm_vcpu *vcpu, gva_t gva, unsigned long pcid)
 {
 	struct kvm_mmu *mmu = vcpu->arch.mmu;
-	bool tlb_flush = false;
+	unsigned long roots = 0;
 	uint i;
 
-	if (pcid == kvm_get_active_pcid(vcpu)) {
-		if (mmu->invlpg)
-			mmu->invlpg(vcpu, gva, mmu->root.hpa);
-		tlb_flush = true;
-	}
+	if (pcid == kvm_get_active_pcid(vcpu))
+		roots |= KVM_MMU_ROOT_CURRENT;
 
 	for (i = 0; i < KVM_MMU_NUM_PREV_ROOTS; i++) {
 		if (VALID_PAGE(mmu->prev_roots[i].hpa) &&
-		    pcid == kvm_get_pcid(vcpu, mmu->prev_roots[i].pgd)) {
-			if (mmu->invlpg)
-				mmu->invlpg(vcpu, gva, mmu->prev_roots[i].hpa);
-			tlb_flush = true;
-		}
+		    pcid == kvm_get_pcid(vcpu, mmu->prev_roots[i].pgd))
+			roots |= KVM_MMU_ROOT_PREVIOUS(i);
 	}
 
-	if (tlb_flush)
-		static_call(kvm_x86_flush_tlb_gva)(vcpu, gva);
-
+	if (roots)
+		kvm_mmu_invalidate_addr(vcpu, mmu, gva, roots);
 	++vcpu->stat.invlpg;
 
 	/*
-- 
2.19.1.6.gb485710b


  parent reply	other threads:[~2023-02-16 15:41 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-02-16 15:41 [PATCH V3 00/14] kvm: x86/mmu: Share the same code to invalidate each vTLB entry Lai Jiangshan
2023-02-16 15:41 ` [PATCH V3 01/14] KVM: x86/mmu: Use 64-bit address to invalidate to fix a subtle bug Lai Jiangshan
2023-02-16 15:41 ` [PATCH V3 02/14] kvm: x86/mmu: Move the check in FNAME(sync_page) as kvm_sync_page_check() Lai Jiangshan
2023-02-16 15:41 ` [PATCH V3 03/14] kvm: x86/mmu: Check mmu->sync_page pointer in kvm_sync_page_check() Lai Jiangshan
2023-02-16 15:41 ` [PATCH V3 04/14] kvm: x86/mmu: Set mmu->sync_page as NULL for direct paging Lai Jiangshan
2023-02-16 15:41 ` [PATCH V3 05/14] kvm: x86/mmu: Move the code out of FNAME(sync_page)'s loop body into mmu.c Lai Jiangshan
2023-02-16 15:41 ` [PATCH V3 06/14] kvm: x86/mmu: Reduce the update to the spte in FNAME(sync_spte) Lai Jiangshan
2023-02-16 15:41 ` [PATCH V3 07/14] KVM: x86/mmu: Sanity check input to kvm_mmu_free_roots() Lai Jiangshan
2023-02-16 15:41 ` [PATCH V3 08/14] kvm: x86/mmu: Use KVM_MMU_ROOT_XXX for kvm_mmu_invalidate_addr() Lai Jiangshan
2023-02-16 15:41 ` Lai Jiangshan [this message]
2023-02-16 23:53 ` [PATCH V3 10/14] kvm: x86/mmu: Use kvm_mmu_invalidate_addr() in nested_ept_invalidate_addr() Lai Jiangshan
2023-02-16 23:53   ` [PATCH V3 11/14] kvm: x86/mmu: Allow the roots to be invalid in FNAME(invlpg) Lai Jiangshan
2023-02-16 23:53   ` [PATCH V3 12/14] kvm: x86/mmu: Remove FNAME(invlpg) and use FNAME(sync_spte) to update vTLB instead Lai Jiangshan
2023-02-16 23:53   ` [PATCH V3 13/14] kvm: x86/mmu: Remove @no_dirty_log from FNAME(prefetch_gpte) Lai Jiangshan
2023-02-16 23:53   ` [PATCH V3 14/14] kvm: x86/mmu: Skip calling mmu->sync_spte() when the spte is 0 Lai Jiangshan
2023-03-23 22:50 ` [PATCH V3 00/14] kvm: x86/mmu: Share the same code to invalidate each vTLB entry Sean Christopherson

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