* Patch "x86/platform/uv/BAU: Add APIC idt entry" has been added to the 4.15-stable tree
@ 2018-04-01 8:56 gregkh
0 siblings, 0 replies; only message in thread
From: gregkh @ 2018-04-01 8:56 UTC (permalink / raw)
To: abanman, gregkh, hpa, mike.travis, rja, sivanich, tglx
Cc: stable, stable-commits
This is a note to let you know that I've just added the patch titled
x86/platform/uv/BAU: Add APIC idt entry
to the 4.15-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
x86-platform-uv-bau-add-apic-idt-entry.patch
and it can be found in the queue-4.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.
>From 151ad17fbe5e56afa59709f41980508672c777ce Mon Sep 17 00:00:00 2001
From: Andrew Banman <abanman@hpe.com>
Date: Tue, 27 Mar 2018 17:09:06 -0500
Subject: x86/platform/uv/BAU: Add APIC idt entry
From: Andrew Banman <abanman@hpe.com>
commit 151ad17fbe5e56afa59709f41980508672c777ce upstream.
BAU uses the old alloc_initr_gate90 method to setup its interrupt. This
fails silently as the BAU vector is in the range of APIC vectors that are
registered to the spurious interrupt handler. As a consequence BAU
broadcasts are not handled, and the broadcast source CPU hangs.
Update BAU to use new idt structure.
Fixes: dc20b2d52653 ("x86/idt: Move interrupt gate initialization to IDT code")
Signed-off-by: Andrew Banman <abanman@hpe.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Mike Travis <mike.travis@hpe.com>
Cc: Dimitri Sivanich <sivanich@hpe.com>
Cc: Russ Anderson <rja@hpe.com>
Cc: stable@vger.kernel.org
Cc: "H. Peter Anvin" <hpa@zytor.com>
Link: https://lkml.kernel.org/r/1522188546-196177-1-git-send-email-abanman@hpe.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
arch/x86/include/asm/hw_irq.h | 1 +
arch/x86/kernel/idt.c | 3 +++
arch/x86/platform/uv/tlb_uv.c | 2 --
3 files changed, 4 insertions(+), 2 deletions(-)
--- a/arch/x86/include/asm/hw_irq.h
+++ b/arch/x86/include/asm/hw_irq.h
@@ -36,6 +36,7 @@ extern asmlinkage void kvm_posted_intr_w
extern asmlinkage void kvm_posted_intr_nested_ipi(void);
extern asmlinkage void error_interrupt(void);
extern asmlinkage void irq_work_interrupt(void);
+extern asmlinkage void uv_bau_message_intr1(void);
extern asmlinkage void spurious_interrupt(void);
extern asmlinkage void thermal_interrupt(void);
--- a/arch/x86/kernel/idt.c
+++ b/arch/x86/kernel/idt.c
@@ -140,6 +140,9 @@ static const __initconst struct idt_data
# ifdef CONFIG_IRQ_WORK
INTG(IRQ_WORK_VECTOR, irq_work_interrupt),
# endif
+#ifdef CONFIG_X86_UV
+ INTG(UV_BAU_MESSAGE, uv_bau_message_intr1),
+#endif
INTG(SPURIOUS_APIC_VECTOR, spurious_interrupt),
INTG(ERROR_APIC_VECTOR, error_interrupt),
#endif
--- a/arch/x86/platform/uv/tlb_uv.c
+++ b/arch/x86/platform/uv/tlb_uv.c
@@ -2254,8 +2254,6 @@ static int __init uv_bau_init(void)
init_uvhub(uvhub, vector, uv_base_pnode);
}
- alloc_intr_gate(vector, uv_bau_message_intr1);
-
for_each_possible_blade(uvhub) {
if (uv_blade_nr_possible_cpus(uvhub)) {
unsigned long val;
Patches currently in stable-queue which might be from abanman@hpe.com are
queue-4.15/x86-platform-uv-bau-add-apic-idt-entry.patch
^ permalink raw reply [flat|nested] only message in thread
only message in thread, other threads:[~2018-04-01 8:56 UTC | newest]
Thread overview: (only message) (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2018-04-01 8:56 Patch "x86/platform/uv/BAU: Add APIC idt entry" has been added to the 4.15-stable tree gregkh
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.