From: Roger Pau Monne <roger.pau@citrix.com>
To: <xen-devel@lists.xenproject.org>
Cc: Andrew Cooper <andrew.cooper3@citrix.com>, Wei Liu <wl@xen.org>,
Jan Beulich <jbeulich@suse.com>,
Roger Pau Monne <roger.pau@citrix.com>
Subject: [Xen-devel] [PATCH 0/3] x86: fixes/improvements for scratch cpumask
Date: Wed, 12 Feb 2020 17:49:46 +0100 [thread overview]
Message-ID: <20200212164949.56434-1-roger.pau@citrix.com> (raw)
Hello,
Commit:
5500d265a2a8fa63d60c08beb549de8ec82ff7a5
x86/smp: use APIC ALLBUT destination shorthand when possible
Introduced a bogus usage of the scratch cpumask: it was used in a
function that could be called from interrupt context, and hence using
the scratch cpumask there is not safe. Patch #2 is a fix for that usage.
Patch #3 adds some debug infrastructure to make sure the scratch cpumask
is used in the right context, and hence should prevent further missuses.
Thanks, Roger.
Roger Pau Monne (3):
x86/smp: unify header includes in smp.h
x86/smp: use a dedicated scratch cpumask in send_IPI_mask
x86: add accessors for scratch cpu mask
xen/arch/x86/io_apic.c | 6 ++++--
xen/arch/x86/irq.c | 13 ++++++++++---
xen/arch/x86/mm.c | 30 +++++++++++++++++++++---------
xen/arch/x86/msi.c | 4 +++-
xen/arch/x86/smp.c | 14 +++++++++++++-
xen/arch/x86/smpboot.c | 33 ++++++++++++++++++++++++++++++++-
xen/include/asm-x86/smp.h | 15 +++++++++++----
7 files changed, 94 insertions(+), 21 deletions(-)
--
2.25.0
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next reply other threads:[~2020-02-12 16:50 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-12 16:49 Roger Pau Monne [this message]
2020-02-12 16:49 ` [Xen-devel] [PATCH 1/3] x86/smp: unify header includes in smp.h Roger Pau Monne
2020-02-12 23:05 ` Wei Liu
2020-02-13 9:54 ` Jan Beulich
2020-02-12 16:49 ` [Xen-devel] [PATCH 2/3] x86/smp: use a dedicated scratch cpumask in send_IPI_mask Roger Pau Monne
2020-02-13 9:59 ` Jan Beulich
2020-02-13 10:03 ` Roger Pau Monné
2020-02-13 10:19 ` Jan Beulich
2020-02-13 11:41 ` Roger Pau Monné
2020-02-13 13:35 ` Jan Beulich
2020-02-12 16:49 ` [Xen-devel] [PATCH 3/3] x86: add accessors for scratch cpu mask Roger Pau Monne
2020-02-13 10:12 ` Jan Beulich
2020-02-13 15:15 ` Roger Pau Monné
2020-02-13 15:43 ` Jan Beulich
2020-02-12 16:53 ` [Xen-devel] [PATCH 0/3] x86: fixes/improvements for scratch cpumask Sander Eikelenboom
2020-02-12 17:01 ` Roger Pau Monné
2020-02-12 17:13 ` Sander Eikelenboom
2020-02-13 9:31 ` Sander Eikelenboom
2020-02-12 21:05 ` Julien Grall
2020-02-13 9:53 ` Jan Beulich
2020-02-13 10:05 ` Roger Pau Monné
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