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From: "Oliver O'Halloran" <oohall@gmail.com>
To: Michael Ellerman <mpe@ellerman.id.au>
Cc: Vaibhav Jain <vaibhav@linux.ibm.com>,
	Laurent Dufour <ldufour@linux.vnet.ibm.com>,
	linuxppc-dev <linuxppc-dev@lists.ozlabs.org>,
	"Aneesh Kumar K . V" <aneesh.kumar@linux.ibm.com>,
	David Gibson <david@gibson.dropbear.id.au>
Subject: Re: [PATCH v3 1/3] powerpc/pseries: Update SCM hcall op-codes in hvcall.h
Date: Fri, 28 Jun 2019 14:36:19 +1000	[thread overview]
Message-ID: <CAOSf1CHS98Y9gwEUTkAmzjnWSW=yz89DWdXUnr1QijrvMTWvkQ@mail.gmail.com> (raw)
In-Reply-To: <87h88as7iy.fsf@concordia.ellerman.id.au>

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.

> 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.

Oliver

  reply	other threads:[~2019-06-28  4:38 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 [this message]
2019-06-29 11:30       ` Michael Ellerman
2019-06-29 16:09         ` Vaibhav Jain
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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