routines. Coming back to a raw MSR storage model then speed-up the emulation.
Improve fast MSR updates (wrtee wrteei and mtriee cases).
Share rfi family instructions helpers code to avoid bug in duplicated code.
Allow entering halt mode as the result of a rfi instruction.
Add a new helper_regs.h file to avoid duplication of special registers
manipulation routines (currently XER and MSR).
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3436 c046a42c-6fe2-441c-8c8c-71466251a162
allowing support of more than 2 mmu access modes.
Add backward compatibility is_user variable in targets code when needed.
Implement per target cpu_mmu_index function, avoiding duplicated code
and #ifdef TARGET_xxx in softmmu core functions.
Implement per target mmu modes definitions. As an example, add PowerPC
hypervisor mode definition and Alpha executive and kernel modes definitions.
Optimize PowerPC case, precomputing mmu_idx when MSR register changes
and using the same definition in code translation code.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3384 c046a42c-6fe2-441c-8c8c-71466251a162
As a side effect, single step and branch step are available again.
Remove irrelevant MSR bits definitions.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3342 c046a42c-6fe2-441c-8c8c-71466251a162
memory segments.
Remove the PowerPC 64 "bridge" MMU model and implement segment registers
emulation using SLB entries instead.
Make SLB area size implementation dependant.
Improve TLB & SLB search debug traces.
Temporary hack to make PowerPC 970 boot from ROM instead of RAM.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3335 c046a42c-6fe2-441c-8c8c-71466251a162
Protect PowerPC 64 only features with #ifdef (TARGET_PPC64)
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3316 c046a42c-6fe2-441c-8c8c-71466251a162
of supporting code.
Implement 74xx software TLB model.
Keep 74xx with software TLB disabled, as Linux is not able to handle TLB miss
on those processors.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3307 c046a42c-6fe2-441c-8c8c-71466251a162
call the helpers directly from the micro-ops.
Avoid duplicated code for tlbsx. implementation.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3302 c046a42c-6fe2-441c-8c8c-71466251a162
* don't use exception vectors as the exception number.
Use vectors numbers as defined in the PowerPC embedded specification instead
and extend this model to cover all emulated PowerPC variants exceptions.
* add some missing exceptions definitions, from PowerPC 2.04 specification
and actual PowerPC implementations.
* add code provision for hypervisor exceptions handling.
* define exception vectors and prefix in CPUPPCState to emulate BookE exception
vectors without any hacks.
* define per CPU model valid exception vectors.
* handle all known exceptions in user-mode only emulations.
* fix hardware interrupts priorities in most cases.
* change RET_EXCP macros name into GEN_EXCP as they don't return.
* do not stop translation on most instructions that are not defined as
context-synchronizing in PowerPC specification.
* fix PowerPC 64 jump targets and link register update when in 32 bits mode.
* Fix PowerPC 464 and 464F definitions.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3261 c046a42c-6fe2-441c-8c8c-71466251a162
* cleanup cpu.h, removing definitions used only in translate.c/translate_init.c
* add new flags to define instructions sets more precisely
* various changes in MMU models definitions
* add definitions for PowerPC 440/460 support (insns and SPRs).
* add definitions for PowerPC 401/403 and 620 input pins model
* Fix definitions for most PowerPC 401, 403, 405, 440, 601, 602, 603 and 7x0
* Preliminary support for PowerPC 74xx (aka G4) without altivec.
* Code provision for other PowerPC support (7x5, 970, ...).
* New SPR and PVR defined, from PowerPC 2.04 specification and other sources
* Misc code bugs, error messages and styles fixes.
* Update status files for PowerPC cores support.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3244 c046a42c-6fe2-441c-8c8c-71466251a162
Check that at least instructions set and SPRs are correct for
PowerPC 401, 403, 405 and 440 cores.
Implement PowerPC 401 MMU model (real-mode only).
Improve INSNs and SPRs dump to ease parse with standard shell tools.
Add more precise status for most PowerPC cores families.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3201 c046a42c-6fe2-441c-8c8c-71466251a162
As a side effect, avoid potential bits shadowing in TB flags on 64 bits BookE.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3199 c046a42c-6fe2-441c-8c8c-71466251a162
Move cpu_ppc_init, cpu_ppc_close, cpu_ppc_reset and ppc_tlb_invalidate
into helper.c as they are to be called from outside of the translated code.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2682 c046a42c-6fe2-441c-8c8c-71466251a162
No need to requeue timer exceptions.
Fix nip saving for 64 bits PowerPC.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2556 c046a42c-6fe2-441c-8c8c-71466251a162
move all PowerPC specific code into target-ppc/helper.c to avoid polluting
the common code in cpu-exec.c. This makes implementation of new features
(ie embedded PowerPC timers, critical interrupts, ...) easier.
This also avoid hardcoding the IRQ callback in the OpenPIC controller,
making it more easily reusable and allowing cascading.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2542 c046a42c-6fe2-441c-8c8c-71466251a162
For "symetry", add 64 bits versions of all modified functions.
As a side effect, add a lot of code provision for PowerPC 64 support.
Move overflow and carry checks in common routines for simple cases.
Add isel and popcntb instructions from PowerPC 2.03 specification.
Remove remaining micro-operations helpers prototypes from op.c.
Fix XER_BC field to be 7 bits long.
Add power management support for PowerPC 603 & 604.
Fix compilation warnings.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2482 c046a42c-6fe2-441c-8c8c-71466251a162
- Add status file to make regression tracking easier
- Move all micro-operations helpers definitions into a separate header:
should never be seen outside of op.c
- Update copyrights
- Add new / missing PowerPC CPU definitions
- Add definitions for PowerPC BookE
- Add support for PowerPC 6xx/7xx software driven TLBs
Allow use of PowerPC 603 as an example
- Add preliminary code for POWER, POWER2, PowerPC 403, 405, 440, 601, 602
and BookE support
- Avoid compiling priviledged only resources support for user-mode emulation
- Remove unused helpers / micro-ops / dead code
- Add instructions usage statistics dump: useful to figure which instructions
need strong optimizations.
- Micro-operation fixes:
* add missing RETURN in some micro-ops
* fix prototypes
* use softfloat routines for all floating-point operations
* fix tlbie instruction
* move some huge micro-operations into helpers
- emulation fixes:
* fix inverted opcodes for fcmpo / fcmpu
* condition register update is always to be done after the whole
instruction has completed
* add missing NIP updates when calling helpers that may generate an
exception
- optimizations and improvments:
* optimize very often used instructions (li, mr, rlwixx...)
* remove specific micro-ops for rarely used instructions
* add routines for addresses computations to avoid bugs due to multiple
different implementations
* fix TB linking: do not reset T0 at the end of every TB.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2473 c046a42c-6fe2-441c-8c8c-71466251a162
