From: Michael Ellerman <mpe@ellerman.id.au>
To: Vaibhav Jain <vaibhav@linux.ibm.com>, linuxppc-dev@lists.ozlabs.org
Cc: Vaibhav Jain <vaibhav@linux.ibm.com>,
Laurent Dufour <ldufour@linux.vnet.ibm.com>,
Oliver O'Halloran <oohall@gmail.com>,
"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 13:39:17 +1000 [thread overview]
Message-ID: <87h88as7iy.fsf@concordia.ellerman.id.au> (raw)
In-Reply-To: <20190626140404.27448-2-vaibhav@linux.ibm.com>
Vaibhav Jain <vaibhav@linux.ibm.com> writes:
> Update the hvcalls.h to include op-codes for new hcalls introduce to
> manage SCM memory. Also update existing hcall definitions to reflect
> current papr specification for SCM.
>
> Signed-off-by: Vaibhav Jain <vaibhav@linux.ibm.com>
> ---
> Change-log:
>
> v3:
> * Added updated opcode for H_SCM_HEALTH [Oliver]
>
> v2:
> * None new patch in this series.
> ---
> arch/powerpc/include/asm/hvcall.h | 11 ++++++++---
> 1 file changed, 8 insertions(+), 3 deletions(-)
>
> diff --git a/arch/powerpc/include/asm/hvcall.h b/arch/powerpc/include/asm/hvcall.h
> index 463c63a9fcf1..11112023e327 100644
> --- a/arch/powerpc/include/asm/hvcall.h
> +++ b/arch/powerpc/include/asm/hvcall.h
> @@ -302,9 +302,14 @@
> #define H_SCM_UNBIND_MEM 0x3F0
> #define H_SCM_QUERY_BLOCK_MEM_BINDING 0x3F4
> #define H_SCM_QUERY_LOGICAL_MEM_BINDING 0x3F8
> -#define H_SCM_MEM_QUERY 0x3FC
> -#define H_SCM_BLOCK_CLEAR 0x400
> -#define MAX_HCALL_OPCODE H_SCM_BLOCK_CLEAR
> +#define H_SCM_UNBIND_ALL 0x3FC
> +#define H_SCM_HEALTH 0x400
> +#define H_SCM_PERFORMANCE_STATS 0x418
> +#define MAX_HCALL_OPCODE H_SCM_PERFORMANCE_STATS
How can we be changing the meaning of HCALL numbers without breaking all
existing usages?
Where are these hypervisor calls documented?
cheers
next prev parent reply other threads:[~2019-06-28 3:41 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 [this message]
2019-06-28 4:36 ` Oliver O'Halloran
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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