linux-kernel - [PATCH v7 25/30] KVM: selftests: KVM: selftests: Expose new vm_vaddr_alloc

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Message-ID: <20250613191359.35078-26-sagis@google.com>
Date: Fri, 13 Jun 2025 12:13:52 -0700
From: Sagi Shahar <sagis@...gle.com>
To: linux-kselftest@...r.kernel.org, Paolo Bonzini <pbonzini@...hat.com>, 
	Shuah Khan <shuah@...nel.org>, Sean Christopherson <seanjc@...gle.com>, 
	Ackerley Tng <ackerleytng@...gle.com>, Ryan Afranji <afranji@...gle.com>, 
	Andrew Jones <ajones@...tanamicro.com>, Isaku Yamahata <isaku.yamahata@...el.com>, 
	Erdem Aktas <erdemaktas@...gle.com>, Rick Edgecombe <rick.p.edgecombe@...el.com>, 
	Sagi Shahar <sagis@...gle.com>, Roger Wang <runanwang@...gle.com>, 
	Binbin Wu <binbin.wu@...ux.intel.com>, Oliver Upton <oliver.upton@...ux.dev>, 
	"Pratik R. Sampat" <pratikrajesh.sampat@....com>, Reinette Chatre <reinette.chatre@...el.com>
Cc: linux-kernel@...r.kernel.org, kvm@...r.kernel.org
Subject: [PATCH v7 25/30] KVM: selftests: KVM: selftests: Expose new vm_vaddr_alloc_private()

From: Ackerley Tng <ackerleytng@...gle.com>

vm_vaddr_alloc_private allow specifying both the virtual and physical
addresses for the allocation.

Signed-off-by: Ackerley Tng <ackerleytng@...gle.com>
Signed-off-by: Sagi Shahar <sagis@...gle.com>
---
 tools/testing/selftests/kvm/include/kvm_util.h | 3 +++
 tools/testing/selftests/kvm/lib/kvm_util.c     | 7 +++++++
 2 files changed, 10 insertions(+)

diff --git a/tools/testing/selftests/kvm/include/kvm_util.h b/tools/testing/selftests/kvm/include/kvm_util.h
index 2e444c172261..add0b91ebce0 100644
--- a/tools/testing/selftests/kvm/include/kvm_util.h
+++ b/tools/testing/selftests/kvm/include/kvm_util.h
@@ -652,6 +652,9 @@ vm_vaddr_t __vm_vaddr_alloc(struct kvm_vm *vm, size_t sz, vm_vaddr_t vaddr_min,
 vm_vaddr_t vm_vaddr_alloc_shared(struct kvm_vm *vm, size_t sz,
 				 vm_vaddr_t vaddr_min,
 				 enum kvm_mem_region_type type);
+vm_vaddr_t vm_vaddr_alloc_private(struct kvm_vm *vm, size_t sz,
+				  vm_vaddr_t vaddr_min, vm_paddr_t paddr_min,
+				  enum kvm_mem_region_type type);
 vm_vaddr_t vm_vaddr_identity_alloc(struct kvm_vm *vm, size_t sz,
 				   vm_vaddr_t vaddr_min,
 				   enum kvm_mem_region_type type);
diff --git a/tools/testing/selftests/kvm/lib/kvm_util.c b/tools/testing/selftests/kvm/lib/kvm_util.c
index 14edb1de5434..2b442639ee2d 100644
--- a/tools/testing/selftests/kvm/lib/kvm_util.c
+++ b/tools/testing/selftests/kvm/lib/kvm_util.c
@@ -1503,6 +1503,13 @@ vm_vaddr_t vm_vaddr_alloc_shared(struct kvm_vm *vm, size_t sz,
 	return ____vm_vaddr_alloc(vm, sz, vaddr_min, KVM_UTIL_MIN_PFN * vm->page_size, type, false);
 }
 
+vm_vaddr_t vm_vaddr_alloc_private(struct kvm_vm *vm, size_t sz,
+				  vm_vaddr_t vaddr_min, vm_paddr_t paddr_min,
+				  enum kvm_mem_region_type type)
+{
+	return ____vm_vaddr_alloc(vm, sz, vaddr_min, paddr_min, type, true);
+}
+
 /*
  * Allocate memory in @vm of size @sz beginning with the desired virtual address
  * of @vaddr_min and backed by physical address equal to returned virtual
-- 
2.50.0.rc2.692.g299adb8693-goog