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-rw-r--r--target/i386/kvm/tdx.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/target/i386/kvm/tdx.c b/target/i386/kvm/tdx.c
index accaefb401..344e560b4b 100644
--- a/target/i386/kvm/tdx.c
+++ b/target/i386/kvm/tdx.c
@@ -384,6 +384,15 @@ static int tdx_kvm_init(ConfidentialGuestSupport *cgs, Error **errp)
         return -EOPNOTSUPP;
     }
 
+    /*
+     * Set kvm_readonly_mem_allowed to false, because TDX only supports readonly
+     * memory for shared memory but not for private memory. Besides, whether a
+     * memslot is private or shared is not determined by QEMU.
+     *
+     * Thus, just mark readonly memory not supported for simplicity.
+     */
+    kvm_readonly_mem_allowed = false;
+
     qemu_add_machine_init_done_notifier(&tdx_machine_done_notify);
 
     tdx_guest = tdx;