lkml.org 
[lkml]   [2020]   [Nov]   [5]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 1/3] x86/platform/uv: Fix missing OEM_TABLE_ID
Date
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>
---
arch/x86/kernel/apic/x2apic_uv_x.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/arch/x86/kernel/apic/x2apic_uv_x.c b/arch/x86/kernel/apic/x2apic_uv_x.c
index 714233cee0b5..a5794794ea59 100644
--- 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(void)
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(char *_oem_id)
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(char *_oem_id, char *_oem_table_id)
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 */
--
2.21.0
\
 
 \ /
  Last update: 2020-11-05 23:28    [W:0.094 / U:0.432 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site