[PATCH v6 03/60] i386/tdx: Implement tdx_kvm_type() for TDX

Xiaoyao Li
2024-11-05T06:36:34Z

TDX VM requires VM type to be KVM_X86_TDX_VM. Implement tdx_kvm_type()
as X86ConfidentialGuestClass->kvm_type.

Signed-off-by: Xiaoyao Li <xiaoyao.li@intel.com>
---
Changes in v6:
- new added patch;
---
target/i386/kvm/kvm.c | 1 +
target/i386/kvm/tdx.c | 12 ++++++++++++
2 files changed, 13 insertions(+)

diff --git a/target/i386/kvm/kvm.c b/target/i386/kvm/kvm.c
index 8e17942c3ba1..ed2e89946c44 100644
--- a/target/i386/kvm/kvm.c
+++ b/target/i386/kvm/kvm.c
@@ -194,6 +194,7 @@ static const char *vm_type_name[] = {
[KVM_X86_SEV_VM] = "SEV",
[KVM_X86_SEV_ES_VM] = "SEV-ES",
[KVM_X86_SNP_VM] = "SEV-SNP",
+ [KVM_X86_TDX_VM] = "TDX",
};

bool kvm_is_vm_type_supported(int type)
diff --git a/target/i386/kvm/tdx.c b/target/i386/kvm/tdx.c
index 166f53d2b9e3..bf8947549a96 100644
--- a/target/i386/kvm/tdx.c
+++ b/target/i386/kvm/tdx.c
@@ -14,8 +14,17 @@
#include "qemu/osdep.h"
#include "qom/object_interfaces.h"

+#include "kvm_i386.h"
#include "tdx.h"

+static int tdx_kvm_type(X86ConfidentialGuest *cg)
+{
+ /* Do the object check */
+ TDX_GUEST(cg);
+
+ return KVM_X86_TDX_VM;
+}
+
/* tdx guest */
OBJECT_DEFINE_TYPE_WITH_INTERFACES(TdxGuest,
tdx_guest,
@@ -42,4 +51,7 @@ static void tdx_guest_finalize(Object *obj)

static void tdx_guest_class_init(ObjectClass *oc, void *data)
{
+ X86ConfidentialGuestClass *x86_klass = X86_CONFIDENTIAL_GUEST_CLASS(oc);
+
+ x86_klass->kvm_type = tdx_kvm_type;
}
--
2.34.1