From: Julien Grall <julien.grall@arm.com>
To: xen-devel@lists.xen.org
Cc: Julien Grall <julien.grall@arm.com>, sstabellini@kernel.org
Subject: [PATCH v3 0/6] xen/arm: Simplify do_trap_*_abort_guest
Date: Thu, 4 Aug 2016 18:50:01 +0100 [thread overview]
Message-ID: <1470333007-25178-1-git-send-email-julien.grall@arm.com> (raw)
The current data/instruction abort paths contain unnecessary code and
translate too 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).
A branch with this series applied can be found on xenbits:
git://xenbits.xen.org/people/julieng/xen-unstable.git branch abort-handlers-v3
Yours sincerely,
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:[~2016-08-04 17:50 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-08-04 17:50 Julien Grall [this message]
2016-08-04 17:50 ` [PATCH v3 1/6] xen/arm: traps: Simplify the switch in do_trap_*_abort_guest Julien Grall
2016-08-04 17:52 ` Julien Grall
2016-08-04 17:50 ` [PATCH v3 2/6] xen/arm: Provide macros to help creating workaround helpers Julien Grall
2016-08-04 17:52 ` Julien Grall
2016-08-04 17:50 ` [PATCH v3 3/6] xen/arm: Use check_workaround to handle the erratum 766422 Julien Grall
2016-08-04 17:53 ` Julien Grall
2016-08-04 17:50 ` [PATCH v3 4/6] xen/arm: traps: MMIO should only be emulated for fault translation Julien Grall
2016-08-04 17:50 ` [PATCH v3 5/6] xen/arm: traps: Avoid unnecessary VA -> IPA translation in abort handlers Julien Grall
2016-08-04 17:50 ` [PATCH v3 6/6] xen/arm: arm64: Add Cortex-A57 erratum 834220 workaround Julien Grall
2016-08-04 17:59 ` [PATCH v3 0/6] xen/arm: Simplify do_trap_*_abort_guest Stefano Stabellini
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