From: Peter Zijlstra <peterz@infradead.org>
To: Dave Hansen <dave.hansen@intel.com>
Cc: "Luck, Tony" <tony.luck@intel.com>,
"Chatre, Reinette" <reinette.chatre@intel.com>,
"Chen, Yu C" <yu.c.chen@intel.com>,
"tglx@kernel.org" <tglx@kernel.org>,
"bp@alien8.de" <bp@alien8.de>,
"mingo@redhat.com" <mingo@redhat.com>,
"dave.hansen@linux.intel.com" <dave.hansen@linux.intel.com>,
"hpa@zytor.com" <hpa@zytor.com>,
"fenghuay@nvidia.com" <fenghuay@nvidia.com>,
"babu.moger@amd.com" <babu.moger@amd.com>,
"chen.yu@linux.dev" <chen.yu@linux.dev>,
"x86@kernel.org" <x86@kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v6 2/9] x86/resctrl: Require 64-bit x86 for resctrl support
Date: Fri, 21 Aug 2026 13:28:42 +0200 [thread overview]
Message-ID: <20260821112842.GD1837346@noisy.programming.kicks-ass.net> (raw)
In-Reply-To: <bd252483-fb0a-4818-bfaf-b9b6ebd187fe@intel.com>
On Thu, Aug 20, 2026 at 10:12:29AM -0700, Dave Hansen wrote:
> Honestly, the only people who complain about 32-bit support going away
> are folks who "test" it regularly. It's quite rare to see anyone
> actually "using" a 32-bit system.
I've for a long time advocated detecting LM during the 32bit boot and
simply aborting with a message: "Go run the x86_64 kernel!".
next prev parent reply other threads:[~2026-08-21 11:28 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-25 9:20 [PATCH v6 0/9] Introduce MMIO-based CMT access for Enhanced RDT Chen Yu
2026-07-25 9:22 ` [PATCH v6 1/9] x86/topology: Export topo_lookup_cpuid() for resctrl use Chen Yu
2026-08-19 22:55 ` Reinette Chatre
2026-08-22 4:16 ` Chen Yu
2026-07-25 9:22 ` [PATCH v6 2/9] x86/resctrl: Require 64-bit x86 for resctrl support Chen Yu
2026-08-19 22:55 ` Reinette Chatre
2026-08-20 15:20 ` Luck, Tony
2026-08-20 15:54 ` Reinette Chatre
2026-08-20 17:01 ` Luck, Tony
2026-08-20 17:12 ` Dave Hansen
2026-08-20 17:48 ` Reinette Chatre
2026-08-21 2:37 ` Borislav Petkov
2026-08-21 15:47 ` Reinette Chatre
2026-08-21 15:54 ` Borislav Petkov
2026-08-21 11:28 ` Peter Zijlstra [this message]
2026-08-21 15:52 ` Borislav Petkov
2026-08-21 16:58 ` Luck, Tony
2026-08-22 0:04 ` Borislav Petkov
2026-07-25 9:22 ` [PATCH v6 3/9] x86/resctrl: Parse ACPI ERDT table and save CACD cpumask for RMDD domains Chen Yu
2026-08-19 23:01 ` Reinette Chatre
2026-07-25 9:23 ` [PATCH v6 4/9] x86/resctrl: Attach ACPI ERDT information to L3 mon domain on CPU online Chen Yu
2026-08-19 23:04 ` Reinette Chatre
2026-07-25 9:23 ` [PATCH v6 5/9] x86/resctrl: Parse ACPI CMRC table Chen Yu
2026-08-19 23:06 ` Reinette Chatre
2026-07-25 9:23 ` [PATCH v6 6/9] x86/resctrl: Refactor the monitor read function Chen Yu
2026-08-19 23:07 ` Reinette Chatre
2026-07-25 9:23 ` [PATCH v6 7/9] fs/resctrl: Do not invoke smp_processor_id() in preemptible context Chen Yu
2026-08-19 23:08 ` Reinette Chatre
2026-07-25 9:23 ` [PATCH v6 8/9] x86/resctrl: Introduce erdt_cpu_has() and erdt_support() Chen Yu
2026-08-19 23:08 ` Reinette Chatre
2026-07-25 9:23 ` [PATCH v6 9/9] x86/resctrl: Add MMIO-based LLC occupancy monitoring support Chen Yu
2026-08-19 23:10 ` Reinette Chatre
2026-08-13 6:43 ` [PATCH v6 0/9] Introduce MMIO-based CMT access for Enhanced RDT Chen Yu
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