This patch prepares the QEMU cpu_watchpoint/breakpoint API to allow the
succeeding enhancements this series comes with.
First of all, it overcomes MAX_BREAKPOINTS/MAX_WATCHPOINTS by switching
to dynamically allocated data structures that are kept in linked lists.
This also allows to return a stable reference to the related objects,
required for later introduced x86 debug register support.
Breakpoints and watchpoints are stored with their full information set
and an additional flag field that makes them easily extensible for use
beyond pure guest debugging.
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@5738 c046a42c-6fe2-441c-8c8c-71466251a162
This patch refactors the way the CPU state is handled that is associated
with a TB. The basic motivation is to move more arch specific code out
of generic files. Specifically the long #ifdef clutter in tb_find_fast()
has to be overcome in order to avoid duplicating it for the gdb
watchpoint fixes (patch "Restore pc on watchpoint hits").
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@5736 c046a42c-6fe2-441c-8c8c-71466251a162
as macros should be avoided when 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@5735 c046a42c-6fe2-441c-8c8c-71466251a162
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5560 c046a42c-6fe2-441c-8c8c-71466251a162
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5554 c046a42c-6fe2-441c-8c8c-71466251a162
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5552 c046a42c-6fe2-441c-8c8c-71466251a162
* Explicit operand passing to prep_alu_r.
* Avoid some more cpu_T[] usage.
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5550 c046a42c-6fe2-441c-8c8c-71466251a162
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5548 c046a42c-6fe2-441c-8c8c-71466251a162
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5547 c046a42c-6fe2-441c-8c8c-71466251a162
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5546 c046a42c-6fe2-441c-8c8c-71466251a162
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5545 c046a42c-6fe2-441c-8c8c-71466251a162
* Add partial support for the EXS (exception status) register.
* Update SPC after each singlestep exception.
* Remove special treatment of break 8.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5448 c046a42c-6fe2-441c-8c8c-71466251a162
* break 8 sets ERP to the current insn.
* First shot at S flag single-stepping.
* Make it easier to use the local disasm.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5445 c046a42c-6fe2-441c-8c8c-71466251a162
* Speedup and correct ASID (PID) related TLB flushes.
* Use 64bit tcg load/stores to emulate movem.
* Remove unused helpers and other minor cleanups.
Signed-off-by: Edgar E. Iglesias <edgar@axis.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5302 c046a42c-6fe2-441c-8c8c-71466251a162
This patch fixes TCG errors reported on the CRIS target when TCG_DEBUG
is enabled.
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Acked-by: Edgar E. Iglesias <edgar@axis.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5165 c046a42c-6fe2-441c-8c8c-71466251a162
Save and restore env->interrupt_request and env->halted.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4817 c046a42c-6fe2-441c-8c8c-71466251a162
* RFN (Return From NMI) insn.
* Avoid unnecessary T0 transfers.
* Dont do tcg related init more than once.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4717 c046a42c-6fe2-441c-8c8c-71466251a162
* Improve translation of the X flag (still some corner cases missing).
* First shot att P flag support and conditional stores.
* Improve the jump logic.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4684 c046a42c-6fe2-441c-8c8c-71466251a162
* Dont flush the entire qemu tlb when the $pid changes. Instead we go through
the guests TLB and choose entries that need to be flushed.
* Add env->dslot and handle delayslots at pageboundaries.
* Remove some unused code.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4450 c046a42c-6fe2-441c-8c8c-71466251a162
* Convert moves to/from support function regs (including TLB updates) to TCG.
* SCC no longer requires T0 to strictly be 0 or 1, relaxed to 0 or non-zero.
* Convert the the condition code evaluation to TCG.
* Convert rfe into a helper and TCG.
* Convert evaluate_bcc and setf to TCG.
* Convert clrf to TCG.
* Convert CRIS exception raising to TCG.
* Convert btst to TCG.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4376 c046a42c-6fe2-441c-8c8c-71466251a162
* Convert parts of the jump logic to TCG.
* Stores no longer have to go via T0/T1.
* Use the byte and halfword ldx_code variants when appropriate for insn fetching.
* Do not disassemble beyond the translation block.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4350 c046a42c-6fe2-441c-8c8c-71466251a162
* Add support for exec faults and for the k protection bit.
* Abort if search_pc causes recursive mmu faults.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4349 c046a42c-6fe2-441c-8c8c-71466251a162
* Support both the I and D MMUs and improve the accuracy of the MMU model.
* Handle the automatic user/kernel stack pointer switching when leaving or entering user mode.
* Move the CCS evaluation into helper funcs.
* Make sure user-mode cannot change flags only writeable in kernel mode.
* More conversion of the translator into TCG.
* Handle exceptions while in a delayslot.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4299 c046a42c-6fe2-441c-8c8c-71466251a162
* Bit swap insn (bitwise not, endian swap and bit reverse).
* Muls and mulu.
* Extended arithmetics.
* Parts of the condition code handling.
* Use tcg_const_tl.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4069 c046a42c-6fe2-441c-8c8c-71466251a162
* Clean up the interrupt handling a bit.
* Connect some NOR flash to the test board.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4055 c046a42c-6fe2-441c-8c8c-71466251a162
* target-cris/helper.c: Update ERP for user-mode simulation aswell.
* hw/etraxfs_timer.c: Support multiple timers.
* hw/etraxfs_ser.c: Multiple ports, the data just goes to stdout.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4004 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
