From: Julien Grall <julien.grall@arm.com>
To: xen-devel@lists.xen.org
Cc: andre.przywara@arm.com, Julien Grall <julien.grall@arm.com>,
sstabellini@kernel.org, steve.capper@arm.com,
wei.chen@linaro.org
Subject: [PATCH v2 0/6] xen/arm: Simplify do_trap_*_abort_guest
Date: Wed, 27 Jul 2016 18:09:32 +0100 [thread overview]
Message-ID: <1469639378-9244-1-git-send-email-julien.grall@arm.com> (raw)
Hello all,
The current data/instruction abort paths contain unnecessary code and
translate to often a VA to a IPA. This series aim to simplify this path.
Now that the register HPFAR_EL2 is read in some case that can be affected
by the erratum 834220 on Cortex-A57, we need to implement a workaround
for it (see patch #6).
This series depends on version 6 of "xen/arm: Introduce alternative runtime
patching for ARM64" [1]. A branch with the two series can be found on xenbits:
git://xenbits.xen.org/people/julieng/xen-unstable.git branch abort-handlers-v2
Yours sincerely,
[1] https://lists.xenproject.org/archives/html/xen-devel/2016-07/msg02816.html
Julien Grall (6):
xen/arm: traps: Simplify the switch in do_trap_*_abort_guest
xen/arm: Provide macros to help creating workaround helpers
xen/arm: Use check_workaround to handle the erratum 766422
xen/arm: traps: MMIO should only be emulated for fault translation
xen/arm: traps: Avoid unnecessary VA -> IPA translation in abort
handlers
xen/arm: arm64: Add Cortex-A57 erratum 834220 workaround
docs/misc/arm/silicon-errata.txt | 1 +
xen/arch/arm/Kconfig | 21 +++++++++
xen/arch/arm/cpuerrata.c | 15 +++++++
xen/arch/arm/traps.c | 81 ++++++++++++++++++++++-------------
xen/include/asm-arm/arm32/processor.h | 4 --
xen/include/asm-arm/arm64/processor.h | 2 -
xen/include/asm-arm/cpuerrata.h | 42 ++++++++++++++++++
xen/include/asm-arm/cpufeature.h | 4 +-
xen/include/asm-arm/processor.h | 2 +
9 files changed, 136 insertions(+), 36 deletions(-)
--
1.9.1
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next reply other threads:[~2016-07-27 17:09 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-07-27 17:09 Julien Grall [this message]
2016-07-27 17:09 ` [PATCH v2 1/6] xen/arm: traps: Simplify the switch in do_trap_*_abort_guest Julien Grall
2016-07-28 19:41 ` Stefano Stabellini
2016-07-27 17:09 ` [PATCH v2 2/6] xen/arm: Provide macros to help creating workaround helpers Julien Grall
2016-07-28 19:42 ` Stefano Stabellini
2016-07-27 17:09 ` [PATCH v2 3/6] xen/arm: Use check_workaround to handle the erratum 766422 Julien Grall
2016-07-28 19:43 ` Stefano Stabellini
2016-07-27 17:09 ` [PATCH v2 4/6] xen/arm: traps: MMIO should only be emulated for fault translation Julien Grall
2016-07-27 17:09 ` [PATCH v2 5/6] xen/arm: traps: Avoid unnecessary VA -> IPA translation in abort handlers Julien Grall
2016-07-27 17:28 ` Sergej Proskurin
2016-07-27 17:40 ` Julien Grall
2016-08-17 2:19 ` Shanker Donthineni
2016-08-17 11:11 ` Julien Grall
2016-08-17 20:08 ` Shanker Donthineni
2016-08-18 12:02 ` Julien Grall
2016-07-27 17:09 ` [PATCH v2 6/6] xen/arm: arm64: Add Cortex-A57 erratum 834220 workaround Julien Grall
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