From: David Woodhouse <dwmw2@infradead.org>
To: Borislav Petkov <bp@alien8.de>,
Tom Lendacky <thomas.lendacky@amd.com>,
"usama.arif@bytedance.com" <usama.arif@bytedance.com>
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Subject: Re: [EXTERNAL][PATCH v16 8/8] x86/smpboot: Allow parallel bringup for SEV-ES
Date: Thu, 23 Mar 2023 22:30:52 +0000 [thread overview]
Message-ID: <74a1725bfafe3d80fda5cbccc7578eb04001c404.camel@infradead.org> (raw)
In-Reply-To: <5D59D19F-8085-4638-96A2-4DCE00D2217E@alien8.de>
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On Thu, 2023-03-23 at 23:13 +0100, Borislav Petkov wrote:
> On March 23, 2023 7:28:38 PM GMT+01:00, Tom Lendacky
> <thomas.lendacky@amd.com> wrote:
> >
> > I agree. But once it's there, someone somewhere in the future may
> > look and go, oh, I can call this. So I think it either needs a nice
> > comment above it about how it is currently used/called and what to
> > do if it needs to be called from someplace other than head_64.S or
> > the MSR needs to be saved/restored.
>
> Or it could be __init and get discarded when the system is up.
Not if we have CPU hotplug. Or system suspend.
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prev parent reply other threads:[~2023-03-23 22:31 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-21 19:40 [PATCH v16 0/8] Parallel CPU bringup for x86_64 Usama Arif
2023-03-21 19:40 ` [PATCH v16 1/8] cpu/hotplug: Move idle_thread_get() to <linux/smpboot.h> Usama Arif
2023-03-21 19:40 ` [PATCH v16 2/8] cpu/hotplug: Reset task stack state in _cpu_up() Usama Arif
2023-03-22 11:06 ` Mark Rutland
2023-03-21 19:40 ` [PATCH v16 3/8] cpu/hotplug: Add dynamic parallel bringup states before CPUHP_BRINGUP_CPU Usama Arif
2023-03-23 22:36 ` Thomas Gleixner
2023-03-23 22:49 ` David Woodhouse
2023-03-23 23:48 ` Thomas Gleixner
2023-03-24 0:06 ` David Woodhouse
2023-03-23 23:05 ` Thomas Gleixner
2023-03-23 23:12 ` David Woodhouse
2023-03-24 1:16 ` Thomas Gleixner
2023-03-24 9:31 ` David Woodhouse
2023-03-24 13:57 ` Thomas Gleixner
2023-03-24 15:33 ` David Woodhouse
2023-03-24 14:07 ` Thomas Gleixner
2023-03-24 9:46 ` Thomas Gleixner
2023-03-24 10:00 ` David Woodhouse
2023-03-27 18:48 ` David Woodhouse
2023-03-21 19:40 ` [PATCH v16 4/8] x86/smpboot: Split up native_cpu_up into separate phases and document them Usama Arif
2023-03-21 19:40 ` [PATCH v16 5/8] x86/smpboot: Support parallel startup of secondary CPUs Usama Arif
2023-03-21 19:40 ` [PATCH v16 6/8] x86/smpboot: Send INIT/SIPI/SIPI to secondary CPUs in parallel Usama Arif
2023-03-21 19:40 ` [PATCH v16 7/8] x86/smpboot: Serialize topology updates for secondary bringup Usama Arif
2023-03-21 19:40 ` [PATCH v16 8/8] x86/smpboot: Allow parallel bringup for SEV-ES Usama Arif
2023-03-22 22:47 ` Borislav Petkov
2023-03-23 8:32 ` David Woodhouse
2023-03-23 8:51 ` Borislav Petkov
2023-03-23 9:04 ` David Woodhouse
2023-03-23 14:23 ` Brian Gerst
2023-03-27 17:47 ` Borislav Petkov
2023-03-27 18:14 ` David Woodhouse
2023-03-27 19:14 ` Tom Lendacky
2023-03-27 19:32 ` Borislav Petkov
2023-03-23 13:16 ` Tom Lendacky
[not found] ` <751f572f940220775054dc09324b20b929d7d66d.camel@amazon.co.uk>
2023-03-23 18:28 ` Tom Lendacky
2023-03-23 22:13 ` Borislav Petkov
2023-03-23 22:30 ` David Woodhouse [this message]
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