Re: [RFC PATCH 1/5] x86/cpufeatures: Add SNP Secure TSC

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On Mon, Sep 02, 2024 at 09:46:57AM +0530, Nikunj A. Dadhania wrote:
> Ok, do we need to add an entry to tools/arch/x86/kcpuid/cpuid.csv ?

Already there:

# Leaf 8000001FH
# AMD encrypted memory capabilities enumeration (SME/SEV)

0x8000001f,         0,  eax,       0,    sme                    , Secure Memory Encryption supported
0x8000001f,         0,  eax,       1,    sev                    , Secure Encrypted Virtualization supported
0x8000001f,         0,  eax,       2,    vm_page_flush          , VM Page Flush MSR (0xc001011e) available
0x8000001f,         0,  eax,       3,    sev_es                 , SEV Encrypted State supported
0x8000001f,         0,  eax,       4,    sev_nested_paging      , SEV secure nested paging supported
0x8000001f,         0,  eax,       5,    vm_permission_levels   , VMPL supported
0x8000001f,         0,  eax,       6,    rpmquery               , RPMQUERY instruction supported
0x8000001f,         0,  eax,       7,    vmpl_sss               , VMPL supervisor shadwo stack supported
0x8000001f,         0,  eax,       8,    secure_tsc             , Secure TSC supported
^^^^

but in general if it is not there, most definitely.

This list should contain *all* CPUID definitions.

Thx.

-- 
Regards/Gruss,
    Boris.

https://people.kernel.org/tglx/notes-about-netiquette




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