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The new translator has the following benefits:
- faster emulation of ARMv5TE code (through improved JIT)
- proper support for ARMv7 and NEON
- rebuilding the full-eng platform images for ARMv7-A results
in additionnal speed increases (a.k.a. Thumb-2 rocks!).
Note that, as an interesting side effect, NEON machine code is generally
slower than the equivalent C code it is supposed to replace when run inside
the emulator. This can be explained by the fact that for now the translator
simply translates each NEON instruction into a series of sequential host
instructions (and also requires over-head for packing/unpacking/saturation/
etc...).
This change has been tested by running the "full-eng" platform image
rebuilt for ARMv7-A and Neon and using an appropriate kernel image
(prebuilt/android-arm/kernel/kernel-qemu-armv7). The system could boot
and seems to work perfectly. Not a single issue has been experienced
during testing. On a 2.4 GHz Xeon CPU, the image boots in about 25 seconds
(compared to 40 seconds for a vanilla one without this emulator patch).
Thanks to Peter Maydell at Linaro and ARM with his hard work to make this
happen (first in upstream, and now on Android).
This integration is based on the Meego git repository
(git://gitorious.org/qemu-maemo/qemu.git) using the following hash:
7e2d65b0c95c865b1fa6d3d4948e8e822b9ac2fd
On top of which, the following upstream patch has been applied
(with recommendation from Peter):
b7fa9214d8d4f57992c9acd0ccb125c54a095f00
(We chose this repository because it was the closest to the previous
integrate. We will probably use the Linaro ones for future work on this
part of the emulator).
Change-Id: I54837e3d2e908b2380d158411d7a9813630e7e4e
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Change-Id: I75b9f973655637234466725d7af94f2dd2281fa2
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It's easier to provide a fake Monitor object instead.
Change-Id: Ia45267061d489b147497add6120d3caa9234ac11
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Get rid of qemu_timer_new() implementation, and update all
callers to use qemu_timer_new_ms() or qemu_timer_new_ns()
instead.
Rename qemu_new_timer_scale() to qemu_new_timer() to follow
upstream conventions.
Change-Id: Id2c04f8597ec5026e02f87b3e2c5507920eb688e
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Change-Id: Ic73cca0fc6c6e5cf74f63daa6080d00aa7c392bb
Signed-off-by: Xiaohui Xin <xiaohui.xin@intel.com>
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
Signed-off-by: Jun Nakajima <jun.nakajima@intel.com>
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This large patch upgrades the block support code to the upstream
version available in ba5e7f82169f32ab8163c707d97c799ca09f8924
dated 2010-08-08
Change-Id: I8b24df0c287e72f6620650a4d6a62e1bb315453e
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This patch exposes Qemu's save, load, delete and list commands for
state snapshots on the Android console. A level of indirection is
added by means of the OutputChannel construct. This allows us to show
the output of the Qemu commands on the console rather than on the
monitor, while minimizing the differences with the upstream codebase.
The new commands are exposed only when the configuration constant
CONFIG_ANDROID_SNAPSHOTS is not 0.
Change-Id: I558d5cd505d321fe2da5835713d341d151f60534
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This allows you to access the QEMU virtual machine monitor directly
from the console (instead of playing with the command-line to do it).
The implementation of the 'quit' command has been modified to simply
close the connection, instead of stopping the emulator program.
This patch introduces changes that allow a console session to be
detached and redirected at runtime to other internal services of
the emulator program. This will be useful in the future to implement
other features.
+ doc typo
+ add proper definitions for CONFIG_ANDROID on config-host.h
+ remove obsolete sysdeps.h dependency in android/console.c
Change-Id: If16cfe41c12a26eb8f56e3a9c24452eafa5efab4
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Change-Id: I24acbdebe58d207352548f54dda1abf5be01e7d4
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Change-Id: I41aa30fff127338665a6a32fa66dcd43dd3bfe8b
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Change-Id: I5c51f54a7fe2ea702420429bbf0c789ed6d8c534
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This change integrates many changes from the upstream QEMU sources.
Its main purpose is to enable correct ARMv6 and ARMv7 support to the
Android emulator. Due to the nature of the upstream code base, this
unfortunately also required changes to many other parts of the source.
Note that to ensure easier integrations in the future, some source files
and directories that have heavy Android-specific customization have been
renamed with an -android suffix. The original files are still there for
easier integration tracking, but *never* compiled. For example:
net.c net-android.c
qemu-char.c qemu-char-android.c
slirp/ slirp-android/
etc...
Tested on linux-x86, darwin-x86 and windows host machines.
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