linux-kernel - [PATCH v4 6/8] KVM: selftests: Force GUEST

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Message-ID: <20241114234104.128532-7-pratikrajesh.sampat@amd.com>
Date: Thu, 14 Nov 2024 17:41:02 -0600
From: "Pratik R. Sampat" <pratikrajesh.sampat@....com>
To: <kvm@...r.kernel.org>
CC: <seanjc@...gle.com>, <pbonzini@...hat.com>, <pgonda@...gle.com>,
	<thomas.lendacky@....com>, <michael.roth@....com>, <shuah@...nel.org>,
	<linux-kselftest@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	<sos-linux-ext-patches@...lman-svr.amd.com>, <pratikrajesh.sampat@....com>
Subject: [PATCH v4 6/8] KVM: selftests: Force GUEST_MEMFD flag for SNP VM type

Force the SEV-SNP VM type to set the KVM_MEM_GUEST_MEMFD flag for the
creation of private memslots.

Signed-off-by: Pratik R. Sampat <pratikrajesh.sampat@....com>
---
 tools/testing/selftests/kvm/lib/kvm_util.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/tools/testing/selftests/kvm/lib/kvm_util.c b/tools/testing/selftests/kvm/lib/kvm_util.c
index 480e3a40d197..26179fb2f0e7 100644
--- a/tools/testing/selftests/kvm/lib/kvm_util.c
+++ b/tools/testing/selftests/kvm/lib/kvm_util.c
@@ -413,14 +413,17 @@ struct kvm_vm *__vm_create(struct vm_shape shape, uint32_t nr_runnable_vcpus,
 						 nr_extra_pages);
 	struct userspace_mem_region *slot0;
 	struct kvm_vm *vm;
-	int i;
+	int i, flags = 0;
 
 	pr_debug("%s: mode='%s' type='%d', pages='%ld'\n", __func__,
 		 vm_guest_mode_string(shape.mode), shape.type, nr_pages);
 
 	vm = ____vm_create(shape);
 
-	vm_userspace_mem_region_add(vm, VM_MEM_SRC_ANONYMOUS, 0, 0, nr_pages, 0);
+	if (shape.type == KVM_X86_SNP_VM)
+		flags |=  KVM_MEM_GUEST_MEMFD;
+
+	vm_userspace_mem_region_add(vm, VM_MEM_SRC_ANONYMOUS, 0, 0, nr_pages, flags);
 	for (i = 0; i < NR_MEM_REGIONS; i++)
 		vm->memslots[i] = 0;
 
-- 
2.43.0