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* [Qemu-devel] [PATCH 00/15] add disable-tcg option for x86 build
@ 2017-06-21 10:19 Yang Zhong
  2017-06-21 10:19 ` [Qemu-devel] [PATCH 01/15] configure: add the disable-tcg option Yang Zhong
                   ` (16 more replies)
  0 siblings, 17 replies; 37+ messages in thread
From: Yang Zhong @ 2017-06-21 10:19 UTC (permalink / raw)
  To: pbonzini; +Cc: qemu-devel, a.rigo, anthony.xu, Yang Zhong

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

^ permalink raw reply	[flat|nested] 37+ messages in thread

end of thread, other threads:[~2017-06-22  9:32 UTC | newest]

Thread overview: 37+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2017-06-21 10:19 [Qemu-devel] [PATCH 00/15] add disable-tcg option for x86 build Yang Zhong
2017-06-21 10:19 ` [Qemu-devel] [PATCH 01/15] configure: add the disable-tcg option Yang Zhong
2017-06-21 22:33   ` Richard Henderson
2017-06-22  4:20   ` Thomas Huth
2017-06-22  6:22     ` Paolo Bonzini
2017-06-22  6:33       ` Thomas Huth
2017-06-22  9:26         ` Paolo Bonzini
2017-06-22  9:30           ` Thomas Huth
2017-06-22  9:32             ` Paolo Bonzini
2017-06-21 10:19 ` [Qemu-devel] [PATCH 02/15] vl: add CONFIG_TCG for tcg related code Yang Zhong
2017-06-21 13:10   ` Paolo Bonzini
2017-06-22  6:54     ` Zhong Yang
2017-06-21 10:19 ` [Qemu-devel] [PATCH 03/15] tcg: tcg_handle_interrupt() function Yang Zhong
2017-06-21 13:10   ` Paolo Bonzini
2017-06-22  7:06     ` Zhong Yang
2017-06-22  9:29       ` Paolo Bonzini
2017-06-21 10:19 ` [Qemu-devel] [PATCH 04/15] tcg: change tcg_enabled() Yang Zhong
2017-06-21 10:19 ` [Qemu-devel] [PATCH 05/15] tcg: move page_size_init() function Yang Zhong
2017-06-21 10:19 ` [Qemu-devel] [PATCH 06/15] kvmvapic: remove tcg related code Yang Zhong
2017-06-21 10:19 ` [Qemu-devel] [PATCH 07/15] tcg: move cpu_sync_bndcs_hflags() function Yang Zhong
2017-06-21 10:19 ` [Qemu-devel] [PATCH 08/15] tcg: make cpu_get_fp80()/cpu_set_fp80() static Yang Zhong
2017-06-21 10:19 ` [Qemu-devel] [PATCH 09/15] tcg: add the tcg-stub.c file into accel/stubs/ Yang Zhong
2017-06-21 10:19 ` [Qemu-devel] [PATCH 10/15] tcg: move tb related lock functions Yang Zhong
2017-06-21 10:19 ` [Qemu-devel] [PATCH 11/15] tcg: split cpu_set_mxcsr()/cpu_set_fpuc() Yang Zhong
2017-06-21 13:15   ` Paolo Bonzini
2017-06-22  8:03     ` Zhong Yang
2017-06-22  8:42       ` Paolo Bonzini
2017-06-21 22:36   ` Richard Henderson
2017-06-21 10:19 ` [Qemu-devel] [PATCH 12/15] tcg: remove inline definition of flush_icache_range() Yang Zhong
2017-06-21 13:17   ` Paolo Bonzini
2017-06-21 10:19 ` [Qemu-devel] [PATCH 13/15] tcg: disable tcg in CPUX86State struct Yang Zhong
2017-06-21 22:24   ` Richard Henderson
2017-06-22  9:32     ` Zhong Yang
2017-06-21 10:20 ` [Qemu-devel] [PATCH 14/15] tcg: add the CONFIG_TCG for header Yang Zhong
2017-06-21 10:20 ` [Qemu-devel] [PATCH 15/15] tcg: add the CONFIG_TCG into Makefiles Yang Zhong
2017-06-21 12:03 ` [Qemu-devel] [PATCH 00/15] add disable-tcg option for x86 build no-reply
2017-06-21 13:19 ` Paolo Bonzini

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