Re: [PATCH v8 02/16] x86/virt/tdx: Detect TDX during kernel boot

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On 12/8/22 22:52, Kai Huang wrote:
> +++ b/arch/x86/virt/vmx/tdx/tdx.h
> @@ -0,0 +1,15 @@
> +/* SPDX-License-Identifier: GPL-2.0 */
> +#ifndef _X86_VIRT_TDX_H
> +#define _X86_VIRT_TDX_H
> +
> +/*
> + * This file contains both macros and data structures defined by the TDX
> + * architecture and Linux defined software data structures and functions.
> + * The two should not be mixed together for better readability.  The
> + * architectural definitions come first.
> + */
> +
> +/* MSR to report KeyID partitioning between MKTME and TDX */
> +#define MSR_IA32_MKTME_KEYID_PARTITIONING	0x00000087

The *VAST* majority of MSR definitions are in msr-index.h.

Why is this one different from the norm?




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