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[Qemu-devel] [PATCH 00/11] tcg: Make direct jump patching thread-safe
From: |
Sergey Fedorov |
Subject: |
[Qemu-devel] [PATCH 00/11] tcg: Make direct jump patching thread-safe |
Date: |
Thu, 7 Apr 2016 18:53:42 +0300 |
From: Sergey Fedorov <address@hidden>
When patching translated code for direct block chaining/unchaining,
modification of concurrently executing code can happen in multi-threaded
execution. Currently only user-mode is affected. To make direct block patching
safe, some care must be taken to make sure that the code modification is made
atomic and concurrently executed code is guaranteed to be consistent.
This patch series fixes all supported TCG targets using direct patching and
documents the requirement for direct jump patching be atomic and thread-safe.
The series' tree can be found in a public git repository [1].
[1] https://github.com/sergefdrv/qemu/tree/atomic-tb-patching
Sergey Fedorov (10):
pc-bios/s390-ccw: Use correct strip when cross-compiling
tci: Make direct jump patching thread-safe
tcg/ppc: Make direct jump patching thread-safe
tcg/i386: Make direct jump patching thread-safe
tcg/s390: Make direct jump patching thread-safe
tcg/arm: Make direct jump patching thread-safe
tcg/aarch64: Make direct jump patching thread-safe
tcg/sparc: Make direct jump patching thread-safe
tcg/mips: Make direct jump patching thread-safe
tcg: Note requirement on atomic direct jump patching
Stefan Weil (1):
tci: Fix build regression
include/exec/exec-all.h | 32 ++++++------------------------
pc-bios/s390-ccw/Makefile | 2 +-
tcg/aarch64/tcg-target.inc.c | 14 +++++++++++++-
tcg/arm/tcg-target.inc.c | 17 ++++++++++++++++
tcg/i386/tcg-target.inc.c | 17 ++++++++++++++++
tcg/mips/tcg-target.inc.c | 3 ++-
tcg/ppc/tcg-target.inc.c | 22 +++++++++++++++++----
tcg/s390/tcg-target.inc.c | 6 ++++++
tcg/sparc/tcg-target.inc.c | 2 +-
tcg/tci/tcg-target.inc.c | 2 ++
tci.c | 46 +++++++++++++++++++++++++-------------------
translate-all.c | 2 ++
12 files changed, 111 insertions(+), 54 deletions(-)
--
2.8.1
- [Qemu-devel] [PATCH 00/11] tcg: Make direct jump patching thread-safe,
Sergey Fedorov <=
[Qemu-devel] [PATCH 06/11] tcg/s390: Make direct jump patching thread-safe, Sergey Fedorov, 2016/04/07
[Qemu-devel] [PATCH 01/11] tci: Fix build regression, Sergey Fedorov, 2016/04/07