From 373b373053384f12951ae9f916043d955501d482 Mon Sep 17 00:00:00 2001
From: Kajol Jain <kjain@linux.ibm.com>
Date: Mon, 25 May 2020 16:13:07 +0530
Subject: [PATCH] powerpc/pseries: Update hv-24x7 information after migration
References: jsc#SLE-13661
Patch-mainline: v5.8-rc1
Git-commit: 373b373053384f12951ae9f916043d955501d482
Function 'read_sys_info_pseries()' is added to get system parameter
values like number of sockets and chips per socket.
and it gets these details via rtas_call with token
"PROCESSOR_MODULE_INFO".
Incase lpar migrate from one system to another, system
parameter details like chips per sockets or number of sockets might
change. So, it needs to be re-initialized otherwise, these values
corresponds to previous system values.
This patch adds a call to 'read_sys_info_pseries()' from
'post-mobility_fixup()' to re-init the physsockets and physchips values
Signed-off-by: Kajol Jain <kjain@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200525104308.9814-6-kjain@linux.ibm.com
Acked-by: Michal Suchanek <msuchanek@suse.de>
---
arch/powerpc/platforms/pseries/mobility.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/arch/powerpc/platforms/pseries/mobility.c b/arch/powerpc/platforms/pseries/mobility.c
index b571285f6c14..10d982997736 100644
--- a/arch/powerpc/platforms/pseries/mobility.c
+++ b/arch/powerpc/platforms/pseries/mobility.c
@@ -371,6 +371,9 @@ void post_mobility_fixup(void)
/* Possibly switch to a new RFI flush type */
pseries_setup_rfi_flush();
+ /* Reinitialise system information for hv-24x7 */
+ read_24x7_sys_info();
+
return;
}
--
2.26.2