From: Dave Hansen <dave.hansen@intel.com>
To: Dexuan Cui <decui@microsoft.com>,
KY Srinivasan <kys@microsoft.com>,
Haiyang Zhang <haiyangz@microsoft.com>,
"wei.liu@kernel.org" <wei.liu@kernel.org>,
"tglx@linutronix.de" <tglx@linutronix.de>,
"mingo@redhat.com" <mingo@redhat.com>,
"bp@alien8.de" <bp@alien8.de>,
"dave.hansen@linux.intel.com" <dave.hansen@linux.intel.com>,
"x86@kernel.org" <x86@kernel.org>,
"hpa@zytor.com" <hpa@zytor.com>,
"luto@kernel.org" <luto@kernel.org>,
"peterz@infradead.org" <peterz@infradead.org>,
"stefan.bader@canonical.com" <stefan.bader@canonical.com>,
Tim Gardner <tim.gardner@canonical.com>,
"roxana.nicolescu@canonical.com" <roxana.nicolescu@canonical.com>,
"cascardo@canonical.com" <cascardo@canonical.com>,
"Michael Kelley (LINUX)" <mikelley@microsoft.com>,
"jgross@suse.com" <jgross@suse.com>,
"sathyanarayanan.kuppuswamy@linux.intel.com"
<sathyanarayanan.kuppuswamy@linux.intel.com>,
"kirill.shutemov@linux.intel.com"
<kirill.shutemov@linux.intel.com>,
"sashal@kernel.org" <sashal@kernel.org>,
"matija.glavinic-pecotic.ext@nokia.com"
<matija.glavinic-pecotic.ext@nokia.com>,
"linux-hyperv@vger.kernel.org" <linux-hyperv@vger.kernel.org>
Cc: "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] x86/mm: Print the encryption features correctly when a paravisor is present
Date: Fri, 20 Oct 2023 11:39:32 -0700 [thread overview]
Message-ID: <5245c0df-130c-443d-896b-01887875382b@intel.com> (raw)
In-Reply-To: <SA1PR21MB13352433C4D72AE19F1FF56EBFDBA@SA1PR21MB1335.namprd21.prod.outlook.com>
On 10/19/23 23:01, Dexuan Cui wrote:
> This patch only modifies x86 related files. I think it's unlikely to see
> a third hardware Coco implementation for x86 in the foreseeable feature (?)
OK, then what good is this patch in the first place? If you are right,
then this would give equivalent information:
cat /proc/cpuinfo | grep -q Intel && echo 'TDX'
cat /proc/cpuinfo | grep -q AMD && echo 'SEV'
No kernel patching needed, right?
next prev parent reply other threads:[~2023-10-20 18:39 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-10-19 6:20 [PATCH] x86/mm: Print the encryption features correctly when a paravisor is present Dexuan Cui
2023-10-19 15:54 ` Dave Hansen
2023-10-20 6:01 ` Dexuan Cui
2023-10-20 18:39 ` Dave Hansen [this message]
2023-10-20 20:00 ` Dexuan Cui
2023-10-20 20:13 ` Dave Hansen
2023-10-20 20:20 ` Dexuan Cui
2023-10-20 20:21 ` Borislav Petkov
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