To support TDX attestation, the TDX guest user interface driver must use the __tdx module_call() function in the driver to allow the user to obtain the TDREPORT. So export the __tdx_module_call() and move the TDX Module IDs to asm/tdx.h. This is a preparatory patch for adding attestation support. Reviewed-by: Mika Westerberg <mika.westerberg@xxxxxxxxxxxxxxx> Signed-off-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@xxxxxxxxxxxxxxx> --- Changes since v13: * None arch/x86/coco/tdx/tdcall.S | 2 ++ arch/x86/coco/tdx/tdx.c | 5 ----- arch/x86/include/asm/tdx.h | 5 +++++ 3 files changed, 7 insertions(+), 5 deletions(-) diff --git a/arch/x86/coco/tdx/tdcall.S b/arch/x86/coco/tdx/tdcall.S index f9eb1134f22d..47a1534946c8 100644 --- a/arch/x86/coco/tdx/tdcall.S +++ b/arch/x86/coco/tdx/tdcall.S @@ -3,6 +3,7 @@ #include <asm/asm.h> #include <asm/frame.h> #include <asm/unwind_hints.h> +#include <asm/export.h> #include <linux/linkage.h> #include <linux/bits.h> @@ -75,6 +76,7 @@ SYM_FUNC_START(__tdx_module_call) FRAME_END RET SYM_FUNC_END(__tdx_module_call) +EXPORT_SYMBOL_GPL(__tdx_module_call); /* * __tdx_hypercall() - Make hypercalls to a TDX VMM using TDVMCALL leaf diff --git a/arch/x86/coco/tdx/tdx.c b/arch/x86/coco/tdx/tdx.c index 928dcf7a20d9..2dcc6021aa43 100644 --- a/arch/x86/coco/tdx/tdx.c +++ b/arch/x86/coco/tdx/tdx.c @@ -12,11 +12,6 @@ #include <asm/insn-eval.h> #include <asm/pgtable.h> -/* TDX module Call Leaf IDs */ -#define TDX_GET_INFO 1 -#define TDX_GET_VEINFO 3 -#define TDX_ACCEPT_PAGE 6 - /* TDX hypercall Leaf IDs */ #define TDVMCALL_MAP_GPA 0x10001 diff --git a/arch/x86/include/asm/tdx.h b/arch/x86/include/asm/tdx.h index 020c81a7c729..34c00d8a5263 100644 --- a/arch/x86/include/asm/tdx.h +++ b/arch/x86/include/asm/tdx.h @@ -18,6 +18,11 @@ #define TDX_SW_ERROR (TDX_ERROR | GENMASK_ULL(47, 40)) #define TDX_SEAMCALL_VMFAILINVALID (TDX_SW_ERROR | _UL(0xFFFF0000)) +/* TDX module Call Leaf IDs */ +#define TDX_GET_INFO 1 +#define TDX_GET_VEINFO 3 +#define TDX_ACCEPT_PAGE 6 + #ifndef __ASSEMBLY__ /* -- 2.34.1
