From: Mario Limonciello <mario.limonciello@amd.com>
To: Borislav Petkov <bp@alien8.de>, Bjorn Helgaas <bhelgaas@google.com>
Cc: Yazen Ghannam <yazen.ghannam@amd.com>,
linux-edac@vger.kernel.org, linux-kernel@vger.kernel.org,
tony.luck@intel.com, x86@kernel.org, avadhut.naik@amd.com,
john.allen@amd.com, bhelgaas@google.com,
Shyam-sundar.S-k@amd.com, richard.gong@amd.com,
jdelvare@suse.com, linux@roeck-us.net, clemens@ladisch.de,
hdegoede@redhat.com, ilpo.jarvinen@linux.intel.com,
linux-pci@vger.kernel.org, linux-hwmon@vger.kernel.org,
platform-driver-x86@vger.kernel.org,
naveenkrishna.chatradhi@amd.com, carlos.bilbao.osdev@gmail.com
Subject: Re: [PATCH 16/16] x86/amd_smn: Add support for debugfs access to SMN registers
Date: Tue, 5 Nov 2024 13:56:23 -0600 [thread overview]
Message-ID: <9137b724-d342-4f35-b554-0e56ef37b2d9@amd.com> (raw)
In-Reply-To: <20241105195329.GHZyp3uVMKHAF3BEmV@fat_crate.local>
On 11/5/2024 13:53, Borislav Petkov wrote:
> On Tue, Nov 05, 2024 at 01:46:46PM -0600, Mario Limonciello wrote:
>> Why the worry about it being in debugfs by default?
>
> I want people to *actively* and *explicitly* do something before they can
> brick their systems.
>
OK got it. Considering that I think after this series lands we need to
re-open the conversation about PCI config space access to userspace;
particularly on regions that have been marked as exclusions.
By that grounds a taint is definitely not enough for that either.
next prev parent reply other threads:[~2024-11-05 19:56 UTC|newest]
Thread overview: 65+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-10-23 17:21 [PATCH 00/16] AMD NB and SMN rework Yazen Ghannam
2024-10-23 17:21 ` [PATCH 01/16] x86/mce/amd: Remove shared threshold bank plumbing Yazen Ghannam
2024-10-23 17:21 ` [PATCH 02/16] x86/amd_nb: Restrict init function to AMD-based systems Yazen Ghannam
2024-10-31 8:09 ` Zhuo, Qiuxu
2024-10-31 10:36 ` Borislav Petkov
2024-10-31 11:50 ` Zhuo, Qiuxu
2024-10-31 13:11 ` Borislav Petkov
2024-10-23 17:21 ` [PATCH 03/16] x86/amd_nb: Clean up early_is_amd_nb() Yazen Ghannam
2024-10-25 15:58 ` Borislav Petkov
2024-10-29 14:39 ` Yazen Ghannam
2024-10-29 15:08 ` Borislav Petkov
2024-10-29 16:15 ` Luck, Tony
2024-10-30 14:21 ` Yazen Ghannam
2024-10-31 0:53 ` Sohil Mehta
2024-10-31 10:34 ` [PATCH] x86/cpufeature: Document cpu_feature_enabled() as the default to use Borislav Petkov
2024-10-31 18:26 ` Sohil Mehta
2024-10-31 19:15 ` Borislav Petkov
2024-11-05 19:59 ` Dave Hansen
2024-10-31 10:24 ` [PATCH 03/16] x86/amd_nb: Clean up early_is_amd_nb() Borislav Petkov
2024-10-23 17:21 ` [PATCH 04/16] x86: Start moving AMD Node functionality out of AMD_NB Yazen Ghannam
2024-10-23 17:21 ` [PATCH 05/16] x86/amd_nb: Simplify function 4 search Yazen Ghannam
2024-10-31 11:15 ` Borislav Petkov
2024-10-23 17:21 ` [PATCH 06/16] x86/amd_nb: Simplify root device search Yazen Ghannam
2024-10-31 7:52 ` Zhuo, Qiuxu
2024-10-31 10:08 ` Ilpo Järvinen
2024-10-31 13:10 ` Zhuo, Qiuxu
2024-10-31 15:34 ` Yazen Ghannam
2024-10-31 15:42 ` Ilpo Järvinen
2024-10-31 15:45 ` Yazen Ghannam
2024-10-31 11:20 ` Borislav Petkov
2024-10-31 15:29 ` Yazen Ghannam
2024-10-23 17:21 ` [PATCH 07/16] x86/amd_nb: Use topology info to get AMD node count Yazen Ghannam
2024-10-23 17:21 ` [PATCH 08/16] x86/amd_nb: Simplify function 3 search Yazen Ghannam
2024-10-23 17:21 ` [PATCH 09/16] x86/amd_nb, x86/amd_node: Simplify amd_pci_dev_to_node_id() Yazen Ghannam
2024-11-04 14:23 ` Borislav Petkov
2024-11-05 14:54 ` Yazen Ghannam
2024-10-23 17:21 ` [PATCH 10/16] x86/amd_nb: Move SMN access code to a new amd_smn driver Yazen Ghannam
2024-11-04 14:29 ` Borislav Petkov
2024-11-05 14:58 ` Yazen Ghannam
2024-11-05 19:42 ` Borislav Petkov
2024-10-23 17:21 ` [PATCH 11/16] x86/amd_smn: Fixup __amd_smn_rw() Yazen Ghannam
2024-11-04 14:32 ` Borislav Petkov
2024-11-05 14:59 ` Yazen Ghannam
2024-10-23 17:21 ` [PATCH 12/16] x86/amd_smn: Remove dependency on AMD_NB Yazen Ghannam
2024-10-23 17:21 ` [PATCH 13/16] x86/amd_smn: Use defines for register offsets Yazen Ghannam
2024-10-23 17:21 ` [PATCH 14/16] x86/amd_smn, platform/x86/amd/hsmp: Have HSMP use SMN Yazen Ghannam
2024-10-24 13:23 ` Ilpo Järvinen
2024-10-24 16:06 ` Yazen Ghannam
2024-10-25 13:39 ` Ilpo Järvinen
2024-10-23 17:21 ` [PATCH 15/16] x86/amd_smn: Add SMN offsets to exclusive region access Yazen Ghannam
2024-10-23 17:21 ` [PATCH 16/16] x86/amd_smn: Add support for debugfs access to SMN registers Yazen Ghannam
2024-11-05 19:21 ` Borislav Petkov
2024-11-05 19:46 ` Mario Limonciello
2024-11-05 19:53 ` Borislav Petkov
2024-11-05 19:56 ` Mario Limonciello [this message]
2024-11-05 19:59 ` Borislav Petkov
2024-11-05 20:53 ` Mario Limonciello
2024-10-23 17:59 ` [PATCH 00/16] AMD NB and SMN rework Bjorn Helgaas
2024-10-24 16:01 ` Yazen Ghannam
2024-10-24 17:46 ` Bjorn Helgaas
2024-10-24 20:08 ` Mario Limonciello
2024-10-24 21:06 ` Bjorn Helgaas
2024-10-24 21:20 ` Mario Limonciello
2024-10-24 21:47 ` Bjorn Helgaas
2024-10-31 16:22 ` Yazen Ghannam
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