From: Bertrand Marquis <bertrand.marquis@arm.com>
To: xen-devel@lists.xenproject.org
Cc: Stefano Stabellini <sstabellini@kernel.org>,
Julien Grall <julien@xen.org>,
Volodymyr Babchuk <Volodymyr_Babchuk@epam.com>
Subject: [PATCH 0/3] Spectre BHB follow up
Date: Tue, 3 May 2022 10:38:28 +0100 [thread overview]
Message-ID: <cover.1651570561.git.bertrand.marquis@arm.com> (raw)
Following up the handling of Spectre BHB on Arm (XSA-398), this serie
contain several changes which were not needed in the XSA patches but
should be done in Xen:
- Sync sysregs and cpuinfo with latest version of Linux (5.18-rc3)
- Advertise both workaround 1 and 3 if we apply workaround 3 as it
handle both cases. This will keep the same behaviour for guests which
are not updated to support workaround 3.
- Add sb instruction support. Some newer generations of CPU
(Neoverse-N2) do support the instruction so add support for it in Xen.
Bertrand Marquis (3):
xen/arm: Sync sysregs and cpuinfo with Linux 5.18-rc3
xen/arm: Advertise workaround 1 if we apply 3
xen/arm: Add sb instruction support
xen/arch/arm/arm64/cpufeature.c | 18 +++++-
xen/arch/arm/cpuerrata.c | 14 +++++
xen/arch/arm/include/asm/arm32/macros.h | 8 +++
xen/arch/arm/include/asm/arm64/macros.h | 18 ++++++
xen/arch/arm/include/asm/arm64/sysregs.h | 76 ++++++++++++++++++++----
xen/arch/arm/include/asm/cpufeature.h | 17 ++++--
xen/arch/arm/include/asm/macros.h | 9 ---
xen/arch/arm/vsmc.c | 11 +++-
8 files changed, 141 insertions(+), 30 deletions(-)
--
2.25.1
next reply other threads:[~2022-05-03 9:39 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-05-03 9:38 Bertrand Marquis [this message]
2022-05-03 9:38 ` [PATCH 1/3] xen/arm: Sync sysregs and cpuinfo with Linux 5.18-rc3 Bertrand Marquis
2022-05-03 18:08 ` Julien Grall
2022-05-04 7:39 ` Bertrand Marquis
2022-05-04 8:20 ` Julien Grall
2022-05-04 9:49 ` Bertrand Marquis
2022-05-04 11:49 ` Julien Grall
2022-05-10 2:03 ` Stefano Stabellini
2022-05-11 14:41 ` Bertrand Marquis
2022-05-11 15:20 ` Julien Grall
2022-05-11 15:40 ` Bertrand Marquis
2022-05-11 15:47 ` Julien Grall
2022-05-11 16:01 ` Bertrand Marquis
2022-05-11 16:25 ` Julien Grall
2022-05-11 20:06 ` Stefano Stabellini
2022-05-12 12:34 ` Bertrand Marquis
2022-05-10 2:04 ` Stefano Stabellini
2022-05-11 14:41 ` Bertrand Marquis
2022-05-03 9:38 ` [PATCH 2/3] xen/arm: Advertise workaround 1 if we apply 3 Bertrand Marquis
2022-05-03 18:17 ` Julien Grall
2022-05-04 7:25 ` Bertrand Marquis
2022-05-05 10:51 ` Julien Grall
2022-05-03 9:38 ` [PATCH 3/3] xen/arm: Add sb instruction support Bertrand Marquis
2022-05-03 18:47 ` Julien Grall
2022-05-04 7:24 ` Bertrand Marquis
2022-05-04 8:06 ` Julien Grall
2022-05-05 15:17 ` Julien Grall
2022-05-09 10:08 ` Bertrand Marquis
2022-05-09 10:31 ` Julien Grall
2022-05-09 10:49 ` Bertrand Marquis
2022-05-09 11:08 ` Julien Grall
2022-05-09 11:40 ` Bertrand Marquis
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