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[Qemu-devel] [PATCH 00/15] add disable-tcg option for x86 build
From: |
Yang Zhong |
Subject: |
[Qemu-devel] [PATCH 00/15] add disable-tcg option for x86 build |
Date: |
Wed, 21 Jun 2017 18:19:46 +0800 |
This patchset rebased from Paolo's below patchset, which was based on
QEMU 2.0.50 version.
https://github.com/bonzini/qemu/tree/disable-tcg
Since qemu-system-x86_64 enabled kvm and TCG accelators by default, in
fact, the TCG accelator is NOT useful in the system build of x86 platform.
This patchset will disable TCG for x86 platform if --disable-tcg option is
added into ./configure command.
The new configure build command like below
(1)./configure
tcg is enabled by default
(2)./configure --disable-tcg
tcg is disabled in i386 and x86_64 softmmu build
tcg is enabled in others softmmu and all users build
(3)./configure --disable-tcg --target-list=x86_64-softmmu, x86_64-linux-user
tcg is disabled in x86_64 softmmu build
tcg is enabled in x86_64 linux user build
How to verify disable-tcg option
(1)./configure
a)all user and softmmu build are okay.
b) CONFIG_TCG=y is set in $config_target_mak in all user and softmmu
directory
c)kvm starting vm is okay
./qemu-system-x86_64 -enable-kvm -cpu host -m 2G -smp
cpus=4,cores=4,threads=1,\
sockets=1 -drive format=raw,file=eywa.img,index=0,media=disk -nographic
-serial \
stdio -nodefaults
d)tcg starting vm is okay
./qemu-system-x86_64 -m 2G -smp cpus=4,cores=4,threads=1,sockets=1 -drive
format=raw,\
file=eywa.img,index=0,media=disk -nographic -serial stdio -nodefaults
(2) ./configure --disable-tcg
a) all user and softmmu build are okay.
b) CONFIG_TCG=y is not set in $config_target_mak in i386_softmmu and
x86_64-softmmu
directory
c) kvm starting vm is okay
./qemu-system-x86_64 -enable-kvm -cpu host -m 2G -smp
cpus=4,cores=4,threads=1,\
sockets=1 -drive format=raw,file=eywa.img,index=0,media=disk -nographic
-serial \
stdio -nodefaults
d) tcg starting vm is aborted
The log as below:
"tcg" accelerator not found.
No accelerator found!
Yang Zhong (15):
configure: add the disable-tcg option
vl: add CONFIG_TCG for tcg related code
tcg: tcg_handle_interrupt() function
tcg: change tcg_enabled()
tcg: move page_size_init() function
kvmvapic: remove tcg related code
tcg: move cpu_sync_bndcs_hflags() function
tcg: make cpu_get_fp80()/cpu_set_fp80() static
tcg: add the tcg-stub.c file into accel/stubs/
tcg: move tb related lock functions
tcg: split cpu_set_mxcsr()/cpu_set_fpuc()
tcg: remove inline definition of flush_icache_range()
tcg: disable tcg in CPUX86State struct
tcg: add the CONFIG_TCG for header
tcg: add the CONFIG_TCG into Makefiles
Makefile.target | 4 +-
accel/Makefile.objs | 2 +-
accel/stubs/Makefile.objs | 1 +
accel/stubs/tcg-stub.c | 129 +++++++++++++++++++++++++++++++++++++++++++
accel/tcg/Makefile.objs | 2 +-
accel/tcg/cpu-exec.c | 1 +
accel/tcg/cputlb.c | 1 +
accel/tcg/tcg-all.c | 2 +-
accel/tcg/translate-all.c | 54 ++++++++++--------
accel/tcg/translate-all.h | 3 +
accel/tcg/translate-common.c | 56 -------------------
bsd-user/main.c | 1 +
configure | 28 +++++++++-
cpus.c | 4 +-
exec.c | 20 +++++++
hw/i386/kvmvapic.c | 24 --------
include/exec/cpu-defs.h | 4 +-
include/exec/cputlb.h | 2 +-
include/exec/exec-all.h | 53 +++++++++---------
include/exec/helper-proto.h | 2 +
include/qemu-common.h | 7 ++-
linux-user/main.c | 2 +-
target/i386/Makefile.objs | 7 ++-
target/i386/cpu.h | 22 ++++++--
target/i386/fpu_helper.c | 26 +--------
target/i386/helper.c | 34 +++++++++++-
target/i386/machine.c | 18 ++++++
target/i386/mpx_helper.c | 30 ----------
tcg/i386/tcg-target.h | 5 +-
tcg/i386/tcg-target.inc.c | 4 ++
tcg/tcg.h | 4 --
trace/control-target.c | 1 -
vl.c | 12 ++++
33 files changed, 356 insertions(+), 209 deletions(-)
create mode 100644 accel/stubs/tcg-stub.c
delete mode 100644 accel/tcg/translate-common.c
--
1.9.1
- [Qemu-devel] [PATCH 00/15] add disable-tcg option for x86 build,
Yang Zhong <=
- [Qemu-devel] [PATCH 01/15] configure: add the disable-tcg option, Yang Zhong, 2017/06/21
- Re: [Qemu-devel] [PATCH 01/15] configure: add the disable-tcg option, Richard Henderson, 2017/06/21
- Re: [Qemu-devel] [PATCH 01/15] configure: add the disable-tcg option, Thomas Huth, 2017/06/22
- Re: [Qemu-devel] [PATCH 01/15] configure: add the disable-tcg option, Paolo Bonzini, 2017/06/22
- Re: [Qemu-devel] [PATCH 01/15] configure: add the disable-tcg option, Thomas Huth, 2017/06/22
- Re: [Qemu-devel] [PATCH 01/15] configure: add the disable-tcg option, Paolo Bonzini, 2017/06/22
- Re: [Qemu-devel] [PATCH 01/15] configure: add the disable-tcg option, Thomas Huth, 2017/06/22
- Re: [Qemu-devel] [PATCH 01/15] configure: add the disable-tcg option, Paolo Bonzini, 2017/06/22
[Qemu-devel] [PATCH 02/15] vl: add CONFIG_TCG for tcg related code, Yang Zhong, 2017/06/21