From: Paul Menzel <pmenzel@molgen.mpg.de>
To: Tor Vic <torvic9@mailbox.org>
Cc: Usama Arif <usama.arif@bytedance.com>,
dwmw2@infradead.org, tglx@linutronix.de, kim.phillips@amd.com,
brgerst@gmail.com, piotrgorski@cachyos.org,
oleksandr@natalenko.name, arjan@linux.intel.com,
mingo@redhat.com, bp@alien8.de, dave.hansen@linux.intel.com,
hpa@zytor.com, x86@kernel.org, pbonzini@redhat.com,
paulmck@kernel.org, linux-kernel@vger.kernel.org,
kvm@vger.kernel.org, rcu@vger.kernel.org, mimoja@mimoja.de,
hewenliang4@huawei.com, thomas.lendacky@amd.com,
seanjc@google.com, fam.zheng@bytedance.com,
punit.agrawal@bytedance.com, simon.evans@bytedance.com,
liangma@liangbit.com
Subject: Re: [PATCH v14 00/12] Parallel CPU bringup for x86_64
Date: Fri, 10 Mar 2023 21:18:12 +0100 [thread overview]
Message-ID: <18ec6bf2-c19a-5fcf-3d6b-4106e2372af1@molgen.mpg.de> (raw)
In-Reply-To: <16d9f738-18fd-a929-e711-f2a1e757e33f@mailbox.org>
Dear Tor,
Am 10.03.23 um 20:20 schrieb Tor Vic:
> On 08.03.23 17:13, Usama Arif wrote:
>> The main code change over v13 is to enable parallel bringup for SEV-ES
>> guests.
[…]
>> .../admin-guide/kernel-parameters.txt | 3 +
>> arch/x86/include/asm/cpu.h | 1 +
>> arch/x86/include/asm/processor.h | 6 +-
>> arch/x86/include/asm/realmode.h | 4 +-
>> arch/x86/include/asm/sev-common.h | 3 +
>> arch/x86/include/asm/sev.h | 5 +
>> arch/x86/include/asm/smp.h | 18 +-
>> arch/x86/include/asm/topology.h | 2 -
>> arch/x86/kernel/acpi/sleep.c | 30 +-
>> arch/x86/kernel/apic/apic.c | 2 +-
>> arch/x86/kernel/apic/x2apic_cluster.c | 126 +++---
>> arch/x86/kernel/asm-offsets.c | 1 +
>> arch/x86/kernel/cpu/common.c | 6 +-
>> arch/x86/kernel/cpu/topology.c | 2 +-
>> arch/x86/kernel/head_64.S | 162 ++++++--
>> arch/x86/kernel/smpboot.c | 366 +++++++++++++-----
>> arch/x86/realmode/init.c | 3 +
>> arch/x86/realmode/rm/trampoline_64.S | 27 +-
>> arch/x86/xen/smp_pv.c | 4 +-
>> arch/x86/xen/xen-head.S | 2 +-
>> include/linux/cpuhotplug.h | 2 +
>> include/linux/smpboot.h | 7 +
>> kernel/cpu.c | 31 +-
>> kernel/smpboot.h | 2 -
>> 24 files changed, 614 insertions(+), 201 deletions(-)
>>
>
> On Linux 6.2, Zen2 and Skylake, no issues or boot problems:
>
> Tested-by: Tor Vic <torvic9@mailbox.org>
Thank you for testing this. It’d be great if you shared the exact timing
numbers too. (Just to be sure, did you also test ACPI S3 suspend/resume?)
Kind regards,
Paul
next prev parent reply other threads:[~2023-03-10 20:19 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-08 17:13 [PATCH v14 00/12] Parallel CPU bringup for x86_64 Usama Arif
2023-03-08 17:13 ` [PATCH v14 01/12] x86/apic/x2apic: Allow CPU cluster_mask to be populated in parallel Usama Arif
2023-03-08 17:13 ` [PATCH v14 02/12] cpu/hotplug: Move idle_thread_get() to <linux/smpboot.h> Usama Arif
2023-03-08 17:13 ` [PATCH v14 03/12] cpu/hotplug: Add dynamic parallel bringup states before CPUHP_BRINGUP_CPU Usama Arif
2023-03-08 17:13 ` [PATCH v14 04/12] x86/smpboot: Reference count on smpboot_setup_warm_reset_vector() Usama Arif
2023-03-08 17:13 ` [PATCH v14 05/12] x86/smpboot: Split up native_cpu_up into separate phases and document them Usama Arif
2023-03-11 9:19 ` Thomas Gleixner
2023-03-11 10:21 ` David Woodhouse
2023-03-08 17:13 ` [PATCH v14 06/12] x86/smpboot: Remove initial_stack on 64-bit Usama Arif
2023-03-08 17:13 ` [PATCH v14 07/12] x86/smpboot: Remove early_gdt_descr " Usama Arif
2023-03-08 17:13 ` [PATCH v14 08/12] x86/smpboot: Remove initial_gs Usama Arif
2023-03-08 17:13 ` [PATCH v14 09/12] x86/smpboot: Support parallel startup of secondary CPUs Usama Arif
2023-03-13 22:21 ` Brian Gerst
2023-03-08 17:13 ` [PATCH v14 10/12] x86/smpboot: Send INIT/SIPI/SIPI to secondary CPUs in parallel Usama Arif
2023-03-11 8:54 ` Thomas Gleixner
2023-03-11 9:55 ` David Woodhouse
2023-03-11 14:14 ` Thomas Gleixner
2023-03-11 14:25 ` David Woodhouse
2023-03-11 10:17 ` David Woodhouse
2023-03-08 17:13 ` [PATCH v14 11/12] x86/smpboot: Serialize topology updates for secondary bringup Usama Arif
2023-03-08 17:13 ` [PATCH v14 12/12] x86/smpboot: Allow parallel bringup for SEV-ES Usama Arif
2023-03-10 19:20 ` [PATCH v14 00/12] Parallel CPU bringup for x86_64 Tor Vic
2023-03-10 20:18 ` Paul Menzel [this message]
2023-03-11 19:23 ` Tor Vic
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