[POC PATCH 4/6] KVM: selftests: Allow specifying CoCo-privateness while mapping a page

[Ackerley Tng <ackerleytng@google.com>]

Signed-off-by: Ackerley Tng <ackerleytng@google.com>
---
 tools/testing/selftests/kvm/include/x86/processor.h |  2 ++
 tools/testing/selftests/kvm/lib/x86/processor.c     | 13 ++++++++++---
 2 files changed, 12 insertions(+), 3 deletions(-)

diff --git a/tools/testing/selftests/kvm/include/x86/processor.h b/tools/testing/selftests/kvm/include/x86/processor.h
index 77f576ee7789d..683f21452db58 100644
--- a/tools/testing/selftests/kvm/include/x86/processor.h
+++ b/tools/testing/selftests/kvm/include/x86/processor.h
@@ -1507,6 +1507,8 @@ enum pg_level {
 void tdp_mmu_init(struct kvm_vm *vm, int pgtable_levels,
 		  struct pte_masks *pte_masks);
 
+void ___virt_pg_map(struct kvm_vm *vm, struct kvm_mmu *mmu, gva_t gva,
+		    gpa_t gpa,  int level, bool private);
 void __virt_pg_map(struct kvm_vm *vm, struct kvm_mmu *mmu, gva_t gva,
 		   gpa_t gpa,  int level);
 void virt_map_level(struct kvm_vm *vm, gva_t gva, gpa_t gpa,
diff --git a/tools/testing/selftests/kvm/lib/x86/processor.c b/tools/testing/selftests/kvm/lib/x86/processor.c
index b51467d70f6e7..02781194f51a2 100644
--- a/tools/testing/selftests/kvm/lib/x86/processor.c
+++ b/tools/testing/selftests/kvm/lib/x86/processor.c
@@ -256,8 +256,8 @@ static u64 *virt_create_upper_pte(struct kvm_vm *vm,
 	return pte;
 }
 
-void __virt_pg_map(struct kvm_vm *vm, struct kvm_mmu *mmu, gva_t gva,
-		   gpa_t gpa, int level)
+void ___virt_pg_map(struct kvm_vm *vm, struct kvm_mmu *mmu, gva_t gva,
+		    gpa_t gpa, int level, bool private)
 {
 	const u64 pg_size = PG_LEVEL_SIZE(level);
 	u64 *pte = &mmu->pgd;
@@ -309,12 +309,19 @@ void __virt_pg_map(struct kvm_vm *vm, struct kvm_mmu *mmu, gva_t gva,
 	 * Neither SEV nor TDX supports shared page tables, so only the final
 	 * leaf PTE needs manually set the C/S-bit.
 	 */
-	if (vm_is_gpa_protected(vm, gpa))
+	if (private)
 		*pte |= PTE_C_BIT_MASK(mmu);
 	else
 		*pte |= PTE_S_BIT_MASK(mmu);
 }
 
+void __virt_pg_map(struct kvm_vm *vm, struct kvm_mmu *mmu, gva_t gva,
+		   gpa_t gpa, int level)
+{
+	___virt_pg_map(vm, mmu, gva, gpa, level,
+		       vm_is_gpa_protected(vm, gpa));
+}
+
 void virt_arch_pg_map(struct kvm_vm *vm, gva_t gva, gpa_t gpa)
 {
 	__virt_pg_map(vm, &vm->mmu, gva, gpa, PG_LEVEL_4K);
-- 
2.54.0.545.g6539524ca2-goog