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From: Fred Griffoul <griffoul@gmail.com>
To: Sean Christopherson <seanjc@google.com>,
	Paolo Bonzini <pbonzini@redhat.com>
Cc: Mushahid Hussain <hmushi@amazon.co.uk>,
	James Houghton <jthoughton@google.com>,
	nh-open-source@amazon.com, kvm@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: [RFC PATCH 4/5] KVM: selftests: Declare __tdp_map() in the x86 processor header
Date: Wed,  4 Nov 2026 00:53:30 +0000	[thread overview]
Message-ID: <20261104005331.50600-5-griffoul@gmail.com> (raw)
In-Reply-To: <20261104005331.50600-1-griffoul@gmail.com>

From: Fred Griffoul <fgriffo@amazon.co.uk>

Tests can only map L2 memory with 4 KiB or 1 GiB pages in the TDP page
tables L1 uses for L2, because only tdp_map() and tdp_identity_map_1g()
are declared. Declare __tdp_map(), which takes the page size, so that
tests can also use 2 MiB pages.

Signed-off-by: Fred Griffoul <fgriffo@amazon.co.uk>
---
 tools/testing/selftests/kvm/include/x86/processor.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/testing/selftests/kvm/include/x86/processor.h b/tools/testing/selftests/kvm/include/x86/processor.h
index 5898a277a2e0..66293e448ab2 100644
--- a/tools/testing/selftests/kvm/include/x86/processor.h
+++ b/tools/testing/selftests/kvm/include/x86/processor.h
@@ -1613,6 +1613,7 @@ void virt_map_level(struct kvm_vm *vm, gva_t gva, gpa_t gpa,
 
 void vm_enable_tdp(struct kvm_vm *vm);
 bool kvm_cpu_has_tdp(void);
+void __tdp_map(struct kvm_vm *vm, gpa_t l2_gpa, gpa_t gpa, u64 size, int level);
 void tdp_map(struct kvm_vm *vm, gpa_t l2_gpa, gpa_t gpa, u64 size);
 void tdp_identity_map_default_memslots(struct kvm_vm *vm);
 void tdp_identity_map_1g(struct kvm_vm *vm,  u64 addr, u64 size);
-- 
2.47.3


  parent reply	other threads:[~2026-11-04  0:53 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-11-04  0:53 [RFC PATCH 0/5] KVM: x86/mmu: Allocate memslot rmaps on demand Fred Griffoul
2026-11-04  0:53 ` [RFC PATCH 1/5] KVM: x86/mmu: Walk memslot rmaps by index Fred Griffoul
2026-11-04  0:53 ` [RFC PATCH 2/5] KVM: x86: Count rmaps per level in a debugfs helper Fred Griffoul
2026-11-04  0:53 ` [RFC PATCH 3/5] KVM: x86/mmu: Allocate memslot rmaps in on-demand chunks Fred Griffoul
2026-11-04  0:53 ` Fred Griffoul [this message]
2026-11-04  0:53 ` [RFC PATCH 5/5] KVM: selftests: Test dirty logging of sparse nested mappings Fred Griffoul

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