From: Vaibhav Jain <vaibhav@linux.ibm.com>
To: Michael Ellerman <mpe@ellerman.id.au>,
"Oliver O'Halloran" <oohall@gmail.com>
Cc: "Aneesh Kumar K . V" <aneesh.kumar@linux.ibm.com>,
Laurent Dufour <ldufour@linux.vnet.ibm.com>,
linuxppc-dev <linuxppc-dev@lists.ozlabs.org>,
David Gibson <david@gibson.dropbear.id.au>
Subject: Re: [PATCH v3 1/3] powerpc/pseries: Update SCM hcall op-codes in hvcall.h
Date: Sat, 29 Jun 2019 21:39:18 +0530 [thread overview]
Message-ID: <87ef3cs79t.fsf@vajain21.in.ibm.com> (raw)
In-Reply-To: <87a7e0k4rf.fsf@concordia.ellerman.id.au>
Thanks for reviewing this patch Mpe.
Michael Ellerman <mpe@ellerman.id.au> writes:
> "Oliver O'Halloran" <oohall@gmail.com> writes:
>> On Fri, Jun 28, 2019 at 1:39 PM Michael Ellerman <mpe@ellerman.id.au> wrote:
>>>
>>> Vaibhav Jain <vaibhav@linux.ibm.com> writes:
>>> > *snip*
>>>
>>> How can we be changing the meaning of HCALL numbers without breaking all
>>> existing usages?
>>
>> The changed one being changed here were never used by linux or
>> implemented by either hypervisor.
>
> OK. Please say so in the change log so that it's clear it's not a
> behaviour change.
I have respinned this patchset to v4 updating this patch's
description mentioning the hcall opcodes that are removed.
>
>>> Where are these hypervisor calls documented?
>>
>> In an internal spec from one the phyp guys. I have been complaining
>> about it not being open (or merged into PAPR at the very least), but
>> it doesn't look like there's been any movement there.
>
> Please send a patch for Documentation/powerpc/ describing the API for
> the hypercalls we're using.
Sure will send a separate patch documenting this.
> cheers
>
--
Vaibhav Jain <vaibhav@linux.ibm.com>
Linux Technology Center, IBM India Pvt. Ltd.
next prev parent reply other threads:[~2019-06-29 16:14 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-26 14:04 [PATCH v3 0/3] powerpc/papr_scm: Workaround for failure of drc bind after kexec Vaibhav Jain
2019-06-26 14:04 ` [PATCH v3 1/3] powerpc/pseries: Update SCM hcall op-codes in hvcall.h Vaibhav Jain
2019-06-26 16:53 ` Aneesh Kumar K.V
2019-06-27 1:10 ` Oliver O'Halloran
2019-06-28 3:39 ` Michael Ellerman
2019-06-28 4:36 ` Oliver O'Halloran
2019-06-29 11:30 ` Michael Ellerman
2019-06-29 16:09 ` Vaibhav Jain [this message]
2019-06-26 14:04 ` [PATCH v3 2/3] powerpc/papr_scm: Update drc_pmem_unbind() to use H_SCM_UNBIND_ALL Vaibhav Jain
2019-06-26 15:41 ` Aneesh Kumar K.V
2019-06-27 14:40 ` Vaibhav Jain
2019-06-26 14:04 ` [PATCH v3 3/3] powerpc/papr_scm: Force a scm-unbind if initial scm-bind fails Vaibhav Jain
2019-06-26 16:58 ` Aneesh Kumar K.V
2019-06-27 1:41 ` Oliver O'Halloran
2019-06-27 2:56 ` Aneesh Kumar K.V
2019-06-27 3:39 ` Oliver O'Halloran
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