From: Mike Travis <mike.travis@hpe.com>
To: Borislav Petkov <bp@alien8.de>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, Steve Wahl <steve.wahl@hpe.com>,
"H. Peter Anvin" <hpa@zytor.com>,
x86@kernel.org
Cc: Mike Travis <mike.travis@hpe.com>,
Dimitri Sivanich <dimitri.sivanich@hpe.com>,
Russ Anderson <russ.anderson@hpe.com>,
linux-kernel@vger.kernel.org
Subject: [PATCH 1/3] x86/platform/uv: Fix missing OEM_TABLE_ID
Date: Thu, 5 Nov 2020 16:27:39 -0600
Message-ID: <20201105222741.157029-2-mike.travis@hpe.com> (raw)
In-Reply-To: <20201105222741.157029-1-mike.travis@hpe.com>
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
next prev parent reply index
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-05 22:27 [PATCH 0/3] x86/platform/uv: UV5 Update Fixes Mike Travis
2020-11-05 22:27 ` Mike Travis [this message]
2020-11-07 10:18 ` [tip: x86/urgent] x86/platform/uv: Fix missing OEM_TABLE_ID tip-bot2 for Mike Travis
2020-11-05 22:27 ` [PATCH 2/3] x86/platform/uv: Remove spaces from OEM IDs Mike Travis
2020-11-07 10:18 ` [tip: x86/urgent] " tip-bot2 for Mike Travis
2020-11-05 22:27 ` [PATCH 3/3] x86/platform/uv: Recognize UV5 hubless system identifier Mike Travis
2020-11-07 10:18 ` [tip: x86/urgent] " tip-bot2 for Mike Travis
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