From: Michael Ellerman <patch-notifications@ellerman.id.au>
To: nathanl@linux.ibm.com, linuxppc-dev@lists.ozlabs.org,
Haren Myneni <haren@linux.ibm.com>,
npiggin@gmail.com, mpe@ellerman.id.au
Subject: Re: [PATCH v4 0/3] powerpc/pseries/vas: VAS/NXGZIP support with LPM
Date: Sat, 12 Mar 2022 21:34:50 +1100 [thread overview]
Message-ID: <164708129066.830080.17334657683440823206.b4-ty@ellerman.id.au> (raw)
In-Reply-To: <aab2eda3cb5b209e07cf50760649834f1d93fede.camel@linux.ibm.com>
On Sun, 27 Feb 2022 23:46:01 -0800, Haren Myneni wrote:
> Virtual Accelerator Switchboard (VAS) is an engine stays on the
> chip. So all windows opened on a specific engine belongs to VAS
> the chip. The hypervisor expects the partition to close all
> active windows on the sources system and reopen them after
> migration on the destination machine.
>
> This patch series adds VAS support with the partition migration.
> When the migration initiates, the VAS migration handler will be
> invoked before pseries_suspend() to close all active windows and
> mark them in-active with VAS_WIN_MIGRATE_CLOSE status. Whereas
> this migration handler is called after migration to reopen all
> windows which has VAS_WIN_MIGRATE_CLOSE status and make them
> active again. The user space gets paste instruction failure
> when it sends requests on these in-active windows.
>
> [...]
Applied to powerpc/next.
[1/3] powerpc/pseries/vas: Define global hv_cop_caps struct
https://git.kernel.org/powerpc/c/278fe1cc2205a05bfd92c794be3d207372b17289
[2/3] powerpc/pseries/vas: Modify reconfig open/close functions for migration
https://git.kernel.org/powerpc/c/716d7a2e3764cb79061371767bff1a691adb4e7f
[3/3] powerpc/pseries/vas: Add VAS migration handler
https://git.kernel.org/powerpc/c/37e6764895ef7431f45ff603a548549d409993d2
cheers
prev parent reply other threads:[~2022-03-12 10:35 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-02-28 7:46 [PATCH v4 0/3] powerpc/pseries/vas: VAS/NXGZIP support with LPM Haren Myneni
2022-02-28 7:51 ` [PATCH v4 1/3] powerpc/pseries/vas: Define global hv_cop_caps struct Haren Myneni
2022-02-28 7:52 ` [PATCH v4 2/3] powerpc/pseries/vas: Modify reconfig open/close functions for migration Haren Myneni
2022-02-28 7:52 ` [PATCH v4 3/3] powerpc/pseries/vas: Add VAS migration handler Haren Myneni
2022-03-02 8:51 ` Haren Myneni
2022-03-12 10:34 ` Michael Ellerman [this message]
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