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Kuppuswamy Sathyanarayanan
59bd54a84d
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 <[email protected]> Signed-off-by: Kirill A. Shutemov <[email protected]> Signed-off-by: Dave Hansen <[email protected]> Reviewed-by: Andi Kleen <[email protected]> Reviewed-by: Tony Luck <[email protected]> Reviewed-by: Dave Hansen <[email protected]> Reviewed-by: Borislav Petkov <[email protected]> Reviewed-by: Thomas Gleixner <[email protected]> Link: https://lkml.kernel.org/r/[email protected]
4 lines
51 B
Makefile
4 lines
51 B
Makefile
# SPDX-License-Identifier: GPL-2.0
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obj-y += tdx.o
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