From: Feng Tang <feng.tang@intel.com>
To: Borislav Petkov <bp@alien8.de>
Cc: X86 ML <x86@kernel.org>, LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 2/2] tools/x86/kcpuid: Add AMD leaf 0x8000001E
Date: Tue, 16 Mar 2021 15:42:23 +0800 [thread overview]
Message-ID: <20210316074223.GC49151@shbuild999.sh.intel.com> (raw)
In-Reply-To: <20210315125901.30315-2-bp@alien8.de>
On Mon, Mar 15, 2021 at 01:59:01PM +0100, Borislav Petkov wrote:
> From: Borislav Petkov <bp@suse.de>
>
> Contains core IDs, node IDs and other topology info.
>
> Signed-off-by: Borislav Petkov <bp@suse.de>
Acked-by: Feng Tang <feng.tang@intel.com>
Also I'm wondering for some basic leaf and extended leaf which
may has different definition for different vendors, do we need
to seprate the csv to a general one and vendor specific ones.
Thanks,
Feng
> ---
> tools/arch/x86/kcpuid/cpuid.csv | 26 ++++++++++++++++++--------
> 1 file changed, 18 insertions(+), 8 deletions(-)
>
> diff --git a/tools/arch/x86/kcpuid/cpuid.csv b/tools/arch/x86/kcpuid/cpuid.csv
> index dd94c07421a8..4f1c4b0c29e9 100644
> --- a/tools/arch/x86/kcpuid/cpuid.csv
> +++ b/tools/arch/x86/kcpuid/cpuid.csv
> @@ -379,12 +379,22 @@
> 0x80000008, 0, EAX, 15:8, lnr_adr_bits, Linear Address Bits
> 0x80000007, 0, EBX, 9, wbnoinvd, WBNOINVD
>
> +# 0x8000001E
> +# EAX: Extended APIC ID
> +0x8000001E, 0, EAX, 31:0, extended_apic_id, Extended APIC ID
> +# EBX: Core Identifiers
> +0x8000001E, 0, EBX, 7:0, core_id, Identifies the logical core ID
> +0x8000001E, 0, EBX, 15:8, threads_per_core, The number of threads per core is threads_per_core + 1
> +# ECX: Node Identifiers
> +0x8000001E, 0, ECX, 7:0, node_id, Node ID
> +0x8000001E, 0, ECX, 10:8, nodes_per_processor, Nodes per processor { 0: 1 node, else reserved }
> +
> # 8000001F: AMD Secure Encryption
> -0x8000001F, 0, EAX, 0, sme, Secure Memory Encryption
> -0x8000001F, 0, EAX, 1, sev, Secure Encrypted Virtualization
> -0x8000001F, 0, EAX, 2, vmpgflush, VM Page Flush MSR
> -0x8000001F, 0, EAX, 3, seves, SEV Encrypted State
> -0x8000001F, 0, EBX, 5:0, c-bit, Page table bit number used to enable memory encryption
> -0x8000001F, 0, EBX, 11:6, mem_encrypt_physaddr_width, Reduction of physical address space in bits with SME enabled
> -0x8000001F, 0, ECX, 31:0, num_encrypted_guests, Maximum ASID value that may be used for an SEV-enabled guest
> -0x8000001F, 0, EDX, 31:0, minimum_sev_asid, Minimum ASID value that must be used for an SEV-enabled, SEV-ES-disabled guest
> +0x8000001F, 0, EAX, 0, sme, Secure Memory Encryption
> +0x8000001F, 0, EAX, 1, sev, Secure Encrypted Virtualization
> +0x8000001F, 0, EAX, 2, vmpgflush, VM Page Flush MSR
> +0x8000001F, 0, EAX, 3, seves, SEV Encrypted State
> +0x8000001F, 0, EBX, 5:0, c-bit, Page table bit number used to enable memory encryption
> +0x8000001F, 0, EBX, 11:6, mem_encrypt_physaddr_width, Reduction of physical address space in bits with SME enabled
> +0x8000001F, 0, ECX, 31:0, num_encrypted_guests, Maximum ASID value that may be used for an SEV-enabled guest
> +0x8000001F, 0, EDX, 31:0, minimum_sev_asid, Minimum ASID value that must be used for an SEV-enabled, SEV-ES-disabled guest
> --
> 2.29.2
next prev parent reply other threads:[~2021-03-16 7:43 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-15 12:59 [PATCH 1/2] tools/x86/kcpuid: Check last token too Borislav Petkov
2021-03-15 12:59 ` [PATCH 2/2] tools/x86/kcpuid: Add AMD leaf 0x8000001E Borislav Petkov
2021-03-16 7:42 ` Feng Tang [this message]
2021-03-16 14:28 ` Borislav Petkov
2021-03-16 17:04 ` Sean Christopherson
2021-03-17 0:30 ` Feng Tang
2021-03-18 10:38 ` [tip: x86/misc] " tip-bot2 for Borislav Petkov
2021-03-16 7:34 ` [PATCH 1/2] tools/x86/kcpuid: Check last token too Feng Tang
2021-03-18 10:38 ` [tip: x86/misc] " tip-bot2 for Borislav Petkov
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