linux-kernel - Re: [PATCH hyperv-next 0/2] arch/x86, x86/hyperv: Few fixes for the AP startup

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Message-ID: <7e9dc568-c685-4530-b2b8-669a58adc3fc@linux.microsoft.com>
Date: Thu, 8 May 2025 12:43:00 -0700
From: Roman Kisel <romank@...ux.microsoft.com>
To: Wei Liu <wei.liu@...nel.org>
Cc: ardb@...nel.org, bp@...en8.de, brgerst@...il.com,
 dave.hansen@...ux.intel.com, decui@...rosoft.com, dimitri.sivanich@....com,
 gautham.shenoy@....com, haiyangz@...rosoft.com, hpa@...or.com,
 imran.f.khan@...cle.com, jacob.jun.pan@...ux.intel.com, jpoimboe@...nel.org,
 justin.ernst@....com, kprateek.nayak@....com, kyle.meyer@....com,
 kys@...rosoft.com, lenb@...nel.org, mhklinux@...look.com, mingo@...hat.com,
 nikunj@....com, papaluri@....com, patryk.wlazlyn@...ux.intel.com,
 peterz@...radead.org, rafael@...nel.org, russ.anderson@....com,
 sohil.mehta@...el.com, steve.wahl@....com, tglx@...utronix.de,
 thomas.lendacky@....com, tiala@...rosoft.com, yuehaibing@...wei.com,
 linux-acpi@...r.kernel.org, linux-hyperv@...r.kernel.org,
 linux-kernel@...r.kernel.org, x86@...nel.org, apais@...rosoft.com,
 benhill@...rosoft.com, bperkins@...rosoft.com, sunilmut@...rosoft.com
Subject: Re: [PATCH hyperv-next 0/2] arch/x86, x86/hyperv: Few fixes for the
 AP startup



On 5/8/2025 11:39 AM, Wei Liu wrote:
> On Wed, May 07, 2025 at 11:22:24AM -0700, Roman Kisel wrote:
>> This patchset combines two patches that depend on each other and were not applying
>> cleanly:
>>    1. Fix APIC ID and VP index confusion in hv_snp_boot_ap():
>>      https://lore.kernel.org/linux-hyperv/20250430204720.108962-1-romank@linux.microsoft.com/
>>    2. Provide the CPU number in the wakeup AP callback:
>>      https://lore.kernel.org/linux-hyperv/20250430204720.108962-1-romank@linux.microsoft.com/
>>
>> I rebased the patches on top of the latest hyperv-next tree and updated the second patch
>> that broke the linux-next build. That fix that, I made one non-functional change:
>> updated the signature of numachip_wakeup_secondary() to match the parameter list of
>> wakeup_secondary_cpu().
>>
>> Roman Kisel (2):
>>    x86/hyperv: Fix APIC ID and VP index confusion in hv_snp_boot_ap()
>>    arch/x86: Provide the CPU number in the wakeup AP callback
> 
> I queue these up.
> 
> Just so you know I'm experimenting a new setup. These have been applied
> to hyperv-next-staging. It will take some time for them to propagate to
> hyperv-next.

Thank you very much! That's exciting news about the new staging setup!!

> 
> Thanks,
> Wei.
> 
>>
>>   arch/x86/coco/sev/core.c             | 13 ++-----
>>   arch/x86/hyperv/hv_init.c            | 33 +++++++++++++++++
>>   arch/x86/hyperv/hv_vtl.c             | 54 ++++------------------------
>>   arch/x86/hyperv/ivm.c                | 11 ++++--
>>   arch/x86/include/asm/apic.h          |  8 ++---
>>   arch/x86/include/asm/mshyperv.h      |  7 ++--
>>   arch/x86/kernel/acpi/madt_wakeup.c   |  2 +-
>>   arch/x86/kernel/apic/apic_noop.c     |  8 ++++-
>>   arch/x86/kernel/apic/apic_numachip.c |  2 +-
>>   arch/x86/kernel/apic/x2apic_uv_x.c   |  2 +-
>>   arch/x86/kernel/smpboot.c            | 10 +++---
>>   include/hyperv/hvgdk_mini.h          |  2 +-
>>   12 files changed, 76 insertions(+), 76 deletions(-)
>>
>>
>> base-commit: 9b0844d87b1407681b78130429f798beb366f43f
>> -- 
>> 2.43.0
>>

-- 
Thank you,
Roman