linux-kernel - [PATCH v2 01/24] KVM: x86/mmu: Implement memslot deletion for TDX

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Message-ID: <20241112073426.21997-1-yan.y.zhao@intel.com>
Date: Tue, 12 Nov 2024 15:34:26 +0800
From: Yan Zhao <yan.y.zhao@...el.com>
To: pbonzini@...hat.com,
	seanjc@...gle.com,
	kvm@...r.kernel.org,
	dave.hansen@...ux.intel.com
Cc: rick.p.edgecombe@...el.com,
	kai.huang@...el.com,
	adrian.hunter@...el.com,
	reinette.chatre@...el.com,
	xiaoyao.li@...el.com,
	tony.lindgren@...el.com,
	binbin.wu@...ux.intel.com,
	dmatlack@...gle.com,
	isaku.yamahata@...el.com,
	isaku.yamahata@...il.com,
	nik.borisov@...e.com,
	linux-kernel@...r.kernel.org,
	x86@...nel.org
Subject: [PATCH v2 01/24] KVM: x86/mmu: Implement memslot deletion for TDX

From: Rick Edgecombe <rick.p.edgecombe@...el.com>

Update attr_filter field to zap both private and shared mappings for TDX
when memslot is deleted.

Signed-off-by: Rick Edgecombe <rick.p.edgecombe@...el.com>
Co-developed-by: Yan Zhao <yan.y.zhao@...el.com>
Signed-off-by: Yan Zhao <yan.y.zhao@...el.com>
---
TDX MMU part 2 v2:
 - Update commit msg.

TDX MMU part 2 v1:
 - Clarify TDX limits on zapping private memory (Sean)

Memslot quirk series:
 - New patch
---
 arch/x86/kvm/mmu/mmu.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/x86/kvm/mmu/mmu.c b/arch/x86/kvm/mmu/mmu.c
index 2e253a488949..68bb78a2306c 100644
--- a/arch/x86/kvm/mmu/mmu.c
+++ b/arch/x86/kvm/mmu/mmu.c
@@ -7126,6 +7126,7 @@ static void kvm_mmu_zap_memslot(struct kvm *kvm,
 		.start = slot->base_gfn,
 		.end = slot->base_gfn + slot->npages,
 		.may_block = true,
+		.attr_filter = KVM_FILTER_PRIVATE | KVM_FILTER_SHARED,
 	};
 	bool flush;
 
-- 
2.43.2