From: Mike Travis <mike.travis@hpe.com>
Date: Thu, 5 Nov 2020 16:27:39 -0600
Subject: x86/platform/uv: Fix missing OEM_TABLE_ID
Git-commit: 1aec69ae56be28b5fd3c9daead5f3840c30153c8
Patch-mainline: 5.10-rc3
References: bnc#1177710 jsc#SLE-13285
Testing shows a problem in that the OEM_TABLE_ID was missing for
hubless systems. This is used to determine the APIC type (legacy or
extended). Add the OEM_TABLE_ID to the early hubless processing.
Fixes: 1e61f5a95f191 ("Add and decode Arch Type in UVsystab")
Signed-off-by: Mike Travis <mike.travis@hpe.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20201105222741.157029-2-mike.travis@hpe.com
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
---
arch/x86/kernel/apic/x2apic_uv_x.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
--- a/arch/x86/kernel/apic/x2apic_uv_x.c
+++ b/arch/x86/kernel/apic/x2apic_uv_x.c
@@ -366,7 +366,7 @@ static int __init early_get_arch_type(vo
return ret;
}
-static int __init uv_set_system_type(char *_oem_id)
+static int __init uv_set_system_type(char *_oem_id, char *_oem_table_id)
{
/* Save OEM_ID passed from ACPI MADT */
uv_stringify(sizeof(oem_id), oem_id, _oem_id);
@@ -394,6 +394,9 @@ static int __init uv_set_system_type(cha
else
uv_hubless_system = 0x9;
+ /* Copy APIC type */
+ uv_stringify(sizeof(oem_table_id), oem_table_id, _oem_table_id);
+
pr_info("UV: OEM IDs %s/%s, SystemType %d, HUBLESS ID %x\n",
oem_id, oem_table_id, uv_system_type, uv_hubless_system);
return 0;
@@ -456,7 +459,7 @@ static int __init uv_acpi_madt_oem_check
uv_cpu_info->p_uv_hub_info = &uv_hub_info_node0;
/* If not UV, return. */
- if (likely(uv_set_system_type(_oem_id) == 0))
+ if (uv_set_system_type(_oem_id, _oem_table_id) == 0)
return 0;
/* Save and Decode OEM Table ID */