On 24.06.24 г. 14:41 ч., Kirill A. Shutemov wrote:
<snip>
--- a/arch/x86/include/asm/shared/tdx.h
+++ b/arch/x86/include/asm/shared/tdx.h
@@ -19,9 +19,17 @@
#define TDG_VM_RD 7
#define TDG_VM_WR 8
-/* TDCS fields. To be used by TDG.VM.WR and TDG.VM.RD module calls */
+/* TDX TD-Scope Metadata. To be used by TDG.VM.WR and TDG.VM.RD */
+#define TDCS_CONFIG_FLAGS 0x1110000300000016
+#define TDCS_TD_CTLS 0x1110000300000017
#define TDCS_NOTIFY_ENABLES 0x9100000000000010
+/* TDCS_CONFIG_FLAGS bits */
+#define TDCS_CONFIG_FLEXIBLE_PENDING_VE BIT_ULL(1)
So where is this bit documented, because in td_scope_metadata.json
CONFIG_FLAGS' individual bits aren't documented. All other TDX docs
refer to the ABI .json file.
Landing code for undocumented bits unfortunately precludes any quality
review on behalf of independent parties.
+
+/* TDCS_TD_CTLS bits */
+#define TD_CTLS_PENDING_VE_DISABLE BIT_ULL(0)
In contrast the TD_CTLS bits are documented in the same .json file.
+
/* TDX hypercall Leaf IDs */
#define TDVMCALL_MAP_GPA 0x10001
#define TDVMCALL_GET_QUOTE 0x10002
