KVM: selftests: nSVM: Update 'struct vmcb_control_area' definition

There's a copy of 'struct vmcb_control_area' definition in KVM selftests,
update it to allow testing of the newly introduced features.
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Message-Id: <20220203104620.277031-6-vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

tools/testing/selftests/kvm/include/x86_64/svm.h

@@ -99,7 +99,14 @@ struct __attribute__ ((__packed__)) vmcb_control_area {
 	u8 reserved_6[8];	/* Offset 0xe8 */
 	u64 avic_logical_id;	/* Offset 0xf0 */
 	u64 avic_physical_id;	/* Offset 0xf8 */
-	u8 reserved_7[768];
+	u8 reserved_7[8];
+	u64 vmsa_pa;		/* Used for an SEV-ES guest */
+	u8 reserved_8[720];
+	/*
+	 * Offset 0x3e0, 32 bytes reserved
+	 * for use by hypervisor/software.
+	 */
+	u8 reserved_sw[32];
 };