From e9d764f803964a54ca7da4a67d124fe824ebd80a Mon Sep 17 00:00:00 2001
From: Nathan Fontenot <nfont@linux.vnet.ibm.com>
Date: Wed, 16 Dec 2015 14:56:02 -0600
Subject: [PATCH] powerpc/pseries: Enable kernel CPU dlpar from sysfs
Enable new kernel cpu hotplug functionality by allowing cpu dlpar requests
to be initiated from sysfs.
Signed-off-by: Nathan Fontenot <nfont@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
---
arch/powerpc/platforms/pseries/dlpar.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/arch/powerpc/platforms/pseries/dlpar.c b/arch/powerpc/platforms/pseries/dlpar.c
index 438fdbd7e40e5..2b93ae8d557a3 100644
--- a/arch/powerpc/platforms/pseries/dlpar.c
+++ b/arch/powerpc/platforms/pseries/dlpar.c
@@ -356,6 +356,9 @@ static int handle_dlpar_errorlog(struct pseries_hp_errorlog *hp_elog)
case PSERIES_HP_ELOG_RESOURCE_MEM:
rc = dlpar_memory(hp_elog);
break;
+ case PSERIES_HP_ELOG_RESOURCE_CPU:
+ rc = dlpar_cpu(hp_elog);
+ break;
default:
pr_warn_ratelimited("Invalid resource (%d) specified\n",
hp_elog->resource);
@@ -385,6 +388,9 @@ static ssize_t dlpar_store(struct class *class, struct class_attribute *attr,
if (!strncmp(arg, "memory", 6)) {
hp_elog->resource = PSERIES_HP_ELOG_RESOURCE_MEM;
arg += strlen("memory ");
+ } else if (!strncmp(arg, "cpu", 3)) {
+ hp_elog->resource = PSERIES_HP_ELOG_RESOURCE_CPU;
+ arg += strlen("cpu ");
} else {
pr_err("Invalid resource specified: \"%s\"\n", buf);
rc = -EINVAL;
--
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