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2011-01-23Delete useless 'extern' qualifiers for functionsBlue Swirl1-1/+1
'extern' qualifier is useless for function declarations. Delete them. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-12-31TCG: Improve tb_phys_hash_func()Aurelien Jarno1-1/+1
Most of emulated CPU have instructions aligned on 16 or 32 bits, while on others GCC tries to align the target jump location. This means that 1/2 or 3/4 of tb_phys_hash entries are never used. Update the hash function tb_phys_hash_func() to ignore the two lowest bits of the address. This brings a 6% speed-up when booting a MIPS image. Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-12-21tcg-arm: fix __clear_cache() warningAurelien Jarno1-4/+2
Use __builtin___clear_cache() instead of __clear_cache() to avoid having to define the function as extern. Fix the following warning: | In file included from qemu/cpus.c:34: | qemu/exec-all.h: In function 'tb_set_jmp_target1': | qemu/exec-all.h:208: error: nested extern declaration of '__clear_cache' | make[1]: *** [cpus.o] Error 1 | make: *** [subdir-i386-softmmu] Error 2 Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-10-20Export qemu_ram_addr_from_hostMarcelo Tosatti1-1/+1
To be used by next patches. Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2010-07-24remove dead codeJun Koi1-3/+0
this patch removes unused function cpu_restore_state_copy(). Signed-off-by: Jun Koi <junkoi2004@gmail.com> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2010-07-22Declare code_gen_ptr, code_gen_max_blocks 'static'Stefan Weil1-2/+0
Both values are only used in exec.c, so there is no need to make them globally available. Signed-off-by: Stefan Weil <weil@mail.berlios.de> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-06-09tcg: get rid of copy_size in TCGOpDefAurelien Jarno1-1/+0
copy_size is a left-over from the dyngen era, remove it. Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-05-11make SIG_IPI to tcg vcpu thread reliableMarcelo Tosatti1-0/+3
Store tcg loop exit request on a global variable, and transfer it to per-CPUState exit_request after assignment of cpu_single_env. This makes exit request signal from robust. Drop the timedlock hack. Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2010-05-01Clean up definition of MAX_OPC_PARAMStuart Brady1-2/+14
MAX_OPC_PARAM is intended to refer to the maximum number of entries used in gen_opparam_buf[] for any single helper call. It is currently defined as 10, but for 32-bit archs, the correct value (with a maximum for four helper arguments) is 14, and for 64-bit archs, only 9 entries are needed. tcg_gen_callN() fills four entries with the function address, flags, number of args, etc. and on 32-bit archs uses a further two entries per argument (with a maximum of four helper arguments), plus two more for the return value. On 64-bit archs, only half as many entries are used for the args and the return value. In reality, TBs tend not to consist purely of helper calls exceeding the stated 10 gen_opparam_buf[] entries, so this would never actually be a problem on 32-bit archs, but the definition is still rather confusing. Signed-off-by: Stuart Brady <sdb@zubnet.me.uk> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-04-08remove TARGET_* defines from translate-all.cPaolo Bonzini1-4/+0
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-04-08Shrink tb_jmp_offset to two entries, the other two are never used.Filip Navara1-4/+1
Signed-Off-By: Riku Voipio <riku.voipio@nokia.com> Signed-off-by: Filip Navara <filip.navara@gmail.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-03-29Compile qemu-timer only onceBlue Swirl1-14/+0
Arrange various declarations so that also non-CPU code can access them, adjust users. Move CPU specific code to cpus.c. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-03-17Large page TLB flushPaul Brook1-11/+3
QEMU uses a fixed page size for the CPU TLB. If the guest uses large pages then we effectively split these into multiple smaller pages, and populate the corresponding TLB entries on demand. When the guest invalidates the TLB by virtual address we must invalidate all entries covered by the large page. However the address used to invalidate the entry may not be present in the QEMU TLB, so we do not know which regions to clear. Implementing a full vaiable size TLB is hard and slow, so just keep a simple address/mask pair to record which addresses may have been mapped by large pages. If the guest invalidates this region then flush the whole TLB. Signed-off-by: Paul Brook <paul@codesourcery.com>
2010-03-12Fix usermode virtual address typePaul Brook1-1/+1
Usermode virtual addresses are abi_ulong, not target_ulong. Signed-off-by: Paul Brook <paul@codesourcery.com>
2010-03-12Disable phsyical memory handling in userspace emulation.Paul Brook1-4/+4
Code to handle physical memory access is not meaningful in usrmode emulation, so disable it. Signed-off-by: Paul Brook <paul@codesourcery.com>
2010-03-12Add tb_page_addr_tPaul Brook1-8/+17
The page tracking code in exec.c is used by both userspace and system emulation. Userspace emulation uses it to track virtual pages, and system emulation to track ram pages. Introduce a new type to hold this kind of address. Signed-off-by: Paul Brook <paul@codesourcery.com>
2010-03-01Avoid tlb_set_page in userspace emulationPaul Brook1-0/+2
tlb_set_page isn't meaningful for userspace emulation, so remove it. Signed-off-by: Paul Brook <paul@codesourcery.com>
2009-12-01tcg: increase TCG_MAX_OP_SIZE to 192Aurelien Jarno1-3/+3
This is needed on a MIPS host and a 64-bit cross-endian target. Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2009-10-01Revert "Get rid of _t suffix"Anthony Liguori1-4/+4
In the very least, a change like this requires discussion on the list. The naming convention is goofy and it causes a massive merge problem. Something like this _must_ be presented on the list first so people can provide input and cope with it. This reverts commit 99a0949b720a0936da2052cb9a46db04ffc6db29. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-10-01Get rid of _t suffixmalc1-4/+4
Some not so obvious bits, slirp and Xen were left alone for the time being. Signed-off-by: malc <av1474@comtv.ru>
2009-09-25ARM host: fix generated blocks linkingLaurent Desnogues1-1/+3
This patch fixes the linking of generated blocks on an ARM host. No need to say this brings a very nice speedup :-) Signed-off-by: Laurent Desnogues <laurent.desnogues@gmail.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2009-09-23exec-all.h: increase OPC_BUF_SIZEAurelien Jarno1-1/+1
Increase OPC_BUF_SIZE to compensate the MAX_OP_PER_INSTR's increase. Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2009-09-23exec-all.h: increase MAX_OP_PER_INSTR to 96 from 64Aurelien Jarno1-1/+1
The x86_64 ror instruction on a 32-bit host can generate up to 77 TCG ops. Some more space should be left for opc that are added at the end of the translation. Thanks to Laurent Desnogues for the debugging help. Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2009-08-24Unbreak large mem support by removing kqemuAnthony Liguori1-35/+0
kqemu introduces a number of restrictions on the i386 target. The worst is that it prevents large memory from working in the default build. Furthermore, kqemu is fundamentally flawed in a number of ways. It relies on the TSC as a time source which will not be reliable on a multiple processor system in userspace. Since most modern processors are multicore, this severely limits the utility of kqemu. kvm is a viable alternative for people looking to accelerate qemu and has the benefit of being supported by the upstream Linux kernel. If someone can implement work arounds to remove the restrictions introduced by kqemu, I'm happy to avoid and/or revert this patch. N.B. kqemu will still function in the 0.11 series but this patch removes it from the 0.12 series. Paul, please Ack or Nack this patch. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-07-27Enable USE_DIRECT_JUMP on Win32.Filip Navara1-4/+1
Signed-off-by: Filip Navara <filip.navara@gmail.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-07-16Update to a hopefully more future proof FSF addressBlue Swirl1-2/+1
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2009-04-19kqemu: merge CONFIG_KQEMU and USE_KQEMUblueswir11-1/+1
Basically a recursive ":%s/USE_KQEMU/CONFIG_KQEMU/g". Signed-off-by: Paul Bolle <pebolle@tiscali.nl> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@7189 c046a42c-6fe2-441c-8c8c-71466251a162
2009-04-11Implement dynamic guest ram allocation.pbrook1-0/+3
Signed-off-by: Paul Brook <paul@codesourcery.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@7088 c046a42c-6fe2-441c-8c8c-71466251a162
2009-04-11Remove code phys_ram_base uses.pbrook1-1/+4
Signed-off-by: Paul Brook <paul@codesourcery.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@7085 c046a42c-6fe2-441c-8c8c-71466251a162
2009-04-05Add new command line option -singlestep for tcg single stepping.aurel321-0/+4
This replaces a compile time option for some targets and adds this feature to targets which did not have a compile time option. Add monitor command to enable or disable single step mode. Modify monitor command "info status" to display single step mode. Signed-off-by: Stefan Weil <weil@mail.berlios.de> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@7004 c046a42c-6fe2-441c-8c8c-71466251a162
2009-02-08Remove GenOpFunc typedefsblueswir11-5/+0
This patch removes the GenOpFunc typedefs from exec-all.h, which are no longer needed, now that dyngen has been removed. Signed-off-by: Stuart Brady <stuart.brady@gmail.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6564 c046a42c-6fe2-441c-8c8c-71466251a162
2009-02-01Replace noreturn with QEMU_NORETURNmalc1-1/+1
Thanks to Robert Riebisch for analysis [1] [1] http://marc.info/?l=qemu-devel&m=123352293319271&w=2 git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6492 c046a42c-6fe2-441c-8c8c-71466251a162
2009-01-14Add noreturn function attributeblueswir11-1/+4
Introduce noreturn attribute and attach it to cpu_loop_exit as well as interrupt/exception helpers for i386. This avoids a bunch of gcc4 warnings. [ Note that this patch comes with a workaround to include qemu-common.h even in cases where is currently causes conflicts with dyngen-exec.h. I've been told that these conflicts will get resolved in the future (/me will try to have a look as well - as time permits). ] Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6303 c046a42c-6fe2-441c-8c8c-71466251a162
2009-01-14Remove all traces of __powerpc__malc1-2/+2
According to $GCC/gcc/config/rs6000/rs6000-c.c _ARCH_PPC is the ubiquitous define which should be used to test whether gcc targets PowerPC, on 64bit platforms _ARCH_PPC64 will be also defined. git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6301 c046a42c-6fe2-441c-8c8c-71466251a162
2009-01-04Update FSF address in GPL/LGPL boilerplateaurel321-1/+1
The attached patch updates the FSF address in the GPL/LGPL boilerplate in most GPL/LGPLed files, and also in COPYING.LIB. Signed-off-by: Stuart Brady <stuart.brady@gmail.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6162 c046a42c-6fe2-441c-8c8c-71466251a162
2008-12-07Some cleanups after dyngen removalaurel321-14/+0
this patch removes some now unused things after dyngen removal. 1. dyngen-exec.h: op_param, op _jmp and some associated macros are now unused; 2. Makefile.target: tcg-dyngen is not needed anymore 2. tcg/tcg-op.h, tcg/tcg-opc.h: gen-op.h is dead 3. tcg.c: - INDEX_op_end is now the first op - CONFIG_DYNGEN_OP is never defined 4. tcg.h: dyngen_op not needed anymore 5. exec-all.h: remove some ASM macros. Signed-off-by: Laurent Desnogues <laurent.desnogues@gmail.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5922 c046a42c-6fe2-441c-8c8c-71466251a162
2008-12-01Use libgcc __clear_cache to clean icache, when available.balrog1-0/+8
Calling the clear cache syscall directly generates an illegal instruction on some (armv4) kernels. git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5843 c046a42c-6fe2-441c-8c8c-71466251a162
2008-11-30Common cpu_loop_exit prototypeaurel321-0/+1
All archs use the same cpu_loop_exit, so move the prototype in a common header. i386 was carrying a __hidden attribute, but that was empty for this arch anyway. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5820 c046a42c-6fe2-441c-8c8c-71466251a162
2008-11-18Add debug exception hook (Jan Kiszka)aliguori1-0/+4
This patch allows to hook into the delivery of EXCP_DEBUG so that other use beyond guest debugging becomes possible. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5745 c046a42c-6fe2-441c-8c8c-71466251a162
2008-11-11Revert commits 5685 to 5688 committed by mistakeaurel321-1/+1
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5691 c046a42c-6fe2-441c-8c8c-71466251a162
2008-11-11Disable debug code for production.aurel321-1/+1
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5685 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-23protect exec-all.h frm multiple inclusion (Glauber Costa)aliguori1-0/+3
Signed-off-by: Glauber Costa <glommer@redhat.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5519 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-06Show size for unassigned accesses (Robert Reif)blueswir11-1/+1
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5436 c046a42c-6fe2-441c-8c8c-71466251a162
2008-09-16Move offsetof to osdep.h, remove local defintions.balrog1-4/+0
With this container_of can actually be used without causing build errors. Reformat container_of. git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5234 c046a42c-6fe2-441c-8c8c-71466251a162
2008-08-30Fix some warnings that would be generated by gcc -Wredundant-declsblueswir11-2/+3
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5115 c046a42c-6fe2-441c-8c8c-71466251a162
2008-07-29On ppc32 make tb_set_jmp_target1 behave like it does on a ppc64malc1-35/+0
Avoids nasty warnings about flush_icache_range from gcc4 and inability to compile [cpu-]exec.c with gcc3 and -O, also the function is much too large to be candidate for inlining anyway. git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4974 c046a42c-6fe2-441c-8c8c-71466251a162
2008-07-23Preliminary PPC64/Linux host supportmalc1-0/+5
ppc64.ld from Heikki Lindholm's patch http://marc.info/?l=qemu-devel&m=114086179024634&w=2 Issues: x86_64 tripple faults shortly after decompressing the kernel No immediate versions of most 64 bit operations More... git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4932 c046a42c-6fe2-441c-8c8c-71466251a162
2008-07-18Small cleanup of gen_intermediate_code(_internal), by Laurent Desnogues.ths1-2/+2
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4891 c046a42c-6fe2-441c-8c8c-71466251a162
2008-07-03Convert remaining __builtin_expect to likely/unlikely, by Jan Kiszka.ths1-2/+2
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4840 c046a42c-6fe2-441c-8c8c-71466251a162
2008-06-30Spelling fixes, spotted by Stuart Brady.ths1-1/+1
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4809 c046a42c-6fe2-441c-8c8c-71466251a162
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