Kuppuswamy Sathyanarayanan 59bd54a84d x86/tdx: Detect running as a TDX guest in early boot ... In preparation of extending cc_platform_has() API to support TDX guest, use CPUID instruction to detect support for TDX guests in the early boot code (via tdx_early_init()). Since copy_bootdata() is the first user of cc_platform_has() API, detect the TDX guest status before it. Define a synthetic feature flag (X86_FEATURE_TDX_GUEST) and set this bit in a valid TDX guest platform. Signed-off-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com> Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com> Reviewed-by: Andi Kleen <ak@linux.intel.com> Reviewed-by: Tony Luck <tony.luck@intel.com> Reviewed-by: Dave Hansen <dave.hansen@linux.intel.com> Reviewed-by: Borislav Petkov <bp@suse.de> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lkml.kernel.org/r/20220405232939.73860-2-kirill.shutemov@linux.intel.com		2022-04-07 08:27:50 -07:00
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tdx	x86/tdx: Detect running as a TDX guest in early boot	2022-04-07 08:27:50 -07:00
core.c	x86/coco: Add API to handle encryption mask	2022-02-23 19:14:29 +01:00
Makefile	x86/tdx: Detect running as a TDX guest in early boot	2022-04-07 08:27:50 -07:00