From: Thomas Gleixner <tglx@linutronix.de>
To: Borislav Petkov <bp@alien8.de>
Cc: LKML <linux-kernel@vger.kernel.org>,
x86@kernel.org, Tom Lendacky <thomas.lendacky@amd.com>,
Andrew Cooper <andrew.cooper3@citrix.com>,
Arjan van de Ven <arjan@linux.intel.com>,
Huang Rui <ray.huang@amd.com>, Juergen Gross <jgross@suse.com>,
Dimitri Sivanich <dimitri.sivanich@hpe.com>,
Sohil Mehta <sohil.mehta@intel.com>,
K Prateek Nayak <kprateek.nayak@amd.com>,
Kan Liang <kan.liang@linux.intel.com>,
Zhang Rui <rui.zhang@intel.com>,
"Paul E. McKenney" <paulmck@kernel.org>,
Feng Tang <feng.tang@intel.com>,
Andy Shevchenko <andy@infradead.org>,
Michael Kelley <mhklinux@outlook.com>,
"Peter Zijlstra (Intel)" <peterz@infradead.org>,
Wang Wendy <wendy.wang@intel.com>
Subject: Re: [patch V6 01/19] x86/cpu: Provide cpuid_read() et al.
Date: Wed, 14 Feb 2024 00:32:05 +0100 [thread overview]
Message-ID: <87v86seya2.ffs@tglx> (raw)
In-Reply-To: <20240213213650.GEZcvg8uvjPXTVhmHv@fat_crate.local>
On Tue, Feb 13 2024 at 22:36, Borislav Petkov wrote:
> On Tue, Feb 13, 2024 at 10:04:00PM +0100, Thomas Gleixner wrote:
>> +static inline void __cpuid_read(unsigned int leaf, unsigned int subleaf, u32 *regs)
>> +{
>> + regs[CPUID_EAX] = leaf;
>> + regs[CPUID_ECX] = subleaf;
>> + __cpuid(regs, regs + 1, regs + 2, regs + 3);
>
> Yeah,
>
> __cpuid(regs, regs + CPUID_EBX, regs + CPUID_ECX, regs + CPUID_EDX);
>
> explains what those numbers are.
Oops. Sorry, I missed that part of your previous reply and just
responded to the u32 *regs part. I'll send an update tomorrow.
Thanks,
tglx
next prev parent reply other threads:[~2024-02-13 23:32 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-02-13 21:03 [patch V6 00/19] x86/cpu: Rework topology evaluation Thomas Gleixner
2024-02-13 21:04 ` [patch V6 01/19] x86/cpu: Provide cpuid_read() et al Thomas Gleixner
2024-02-13 21:36 ` Borislav Petkov
2024-02-13 23:32 ` Thomas Gleixner [this message]
2024-02-14 20:29 ` [patch V6a " Thomas Gleixner
2024-02-15 8:49 ` Andy Shevchenko
2024-02-15 15:07 ` Thomas Gleixner
2024-02-16 15:17 ` [tip: x86/apic] " tip-bot2 for Thomas Gleixner
2024-02-13 21:04 ` [patch V6 02/19] x86/cpu: Provide cpu_init/parse_topology() Thomas Gleixner
2024-02-16 15:17 ` [tip: x86/apic] " tip-bot2 for Thomas Gleixner
2024-02-13 21:04 ` [patch V6 03/19] x86/cpu: Add legacy topology parser Thomas Gleixner
2024-02-16 15:17 ` [tip: x86/apic] " tip-bot2 for Thomas Gleixner
2024-02-13 21:04 ` [patch V6 04/19] x86/cpu: Use common topology code for Centaur and Zhaoxin Thomas Gleixner
2024-02-16 15:17 ` [tip: x86/apic] " tip-bot2 for Thomas Gleixner
2024-02-13 21:04 ` [patch V6 05/19] x86/cpu: Move __max_die_per_package to common.c Thomas Gleixner
2024-02-16 15:17 ` [tip: x86/apic] " tip-bot2 for Thomas Gleixner
2024-02-13 21:04 ` [patch V6 06/19] x86/cpu: Provide a sane leaf 0xb/0x1f parser Thomas Gleixner
2024-02-16 15:17 ` [tip: x86/apic] " tip-bot2 for Thomas Gleixner
2024-02-13 21:04 ` [patch V6 07/19] x86/cpu: Use common topology code for Intel Thomas Gleixner
2024-02-16 15:17 ` [tip: x86/apic] " tip-bot2 for Thomas Gleixner
2024-02-13 21:04 ` [patch V6 08/19] x86/cpu/amd: Provide a separate accessor for Node ID Thomas Gleixner
2024-02-16 15:17 ` [tip: x86/apic] " tip-bot2 for Thomas Gleixner
2024-02-13 21:04 ` [patch V6 09/19] x86/cpu: Provide an AMD/HYGON specific topology parser Thomas Gleixner
2024-02-16 15:17 ` [tip: x86/apic] " tip-bot2 for Thomas Gleixner
2024-02-13 21:04 ` [patch V6 10/19] x86/smpboot: Teach it about topo.amd_node_id Thomas Gleixner
2024-02-16 15:17 ` [tip: x86/apic] " tip-bot2 for Thomas Gleixner
2024-02-13 21:04 ` [patch V6 11/19] x86/cpu: Use common topology code for AMD Thomas Gleixner
2024-02-16 15:17 ` [tip: x86/apic] " tip-bot2 for Thomas Gleixner
2024-02-13 21:04 ` [patch V6 12/19] x86/cpu: Use common topology code for HYGON Thomas Gleixner
2024-02-16 15:17 ` [tip: x86/apic] " tip-bot2 for Thomas Gleixner
2024-02-13 21:04 ` [patch V6 13/19] x86/mm/numa: Use core domain size on AMD Thomas Gleixner
2024-02-16 15:17 ` [tip: x86/apic] " tip-bot2 for Thomas Gleixner
2024-02-13 21:04 ` [patch V6 14/19] x86/cpu: Make topology_amd_node_id() use the actual node info Thomas Gleixner
2024-02-16 15:17 ` [tip: x86/apic] " tip-bot2 for Thomas Gleixner
2024-02-13 21:04 ` [patch V6 15/19] x86/cpu: Remove topology.c Thomas Gleixner
2024-02-16 15:17 ` [tip: x86/apic] " tip-bot2 for Thomas Gleixner
2024-02-13 21:04 ` [patch V6 16/19] x86/cpu: Remove x86_coreid_bits Thomas Gleixner
2024-02-16 15:17 ` [tip: x86/apic] " tip-bot2 for Thomas Gleixner
2024-02-13 21:04 ` [patch V6 17/19] x86/apic: Remove unused phys_pkg_id() callback Thomas Gleixner
2024-02-16 15:17 ` [tip: x86/apic] " tip-bot2 for Thomas Gleixner
2024-02-13 21:04 ` [patch V6 18/19] x86/xen/smp_pv: Remove cpudata fiddling Thomas Gleixner
2024-02-16 15:17 ` [tip: x86/apic] " tip-bot2 for Thomas Gleixner
2024-02-13 21:04 ` [patch V6 19/19] x86/apic/uv: Remove the private leaf 0xb parser Thomas Gleixner
2024-02-16 15:17 ` [tip: x86/apic] " tip-bot2 for Thomas Gleixner
2024-02-15 16:24 ` [patch V6 00/19] x86/cpu: Rework topology evaluation K Prateek Nayak
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