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2009-03-07Use a dedicated function to request exit from execution loopaurel32
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6762 c046a42c-6fe2-441c-8c8c-71466251a162
2009-02-11qemu: add cpu_unregister_io_memory and make io mem table index dynamic ↵aliguori
(Marcelo Tosatti) So drivers can clear their mem io table entries on exit back to unassigned state. Also make the io mem index allocation dynamic. Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6601 c046a42c-6fe2-441c-8c8c-71466251a162
2009-02-01Replace noreturn with QEMU_NORETURNmalc
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
2009-01-26Log reset events (Jan Kiszka)aliguori
Original idea&code by Kevin Wolf, split-up in two patches and added more archs. This patch introduces a flag to log CPU resets. Useful for tracing unexpected resets (such as those triggered by x86 triple faults). 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@6452 c046a42c-6fe2-441c-8c8c-71466251a162
2009-01-25Massage PPC version of cpu_get_real_ticks a littlemalc
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6435 c046a42c-6fe2-441c-8c8c-71466251a162
2009-01-22Add map client retry notification (Avi Kivity)aliguori
The target memory mapping API may fail if the bounce buffer resources are exhausted. Add a notification mechanism to allow clients to retry the mapping operation when resources become available again. Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6395 c046a42c-6fe2-441c-8c8c-71466251a162
2009-01-22Add target memory mapping API (Avi Kivity)aliguori
Devices accessing large amounts of memory (as with DMA) will wish to obtain a pointer to guest memory rather than access it indirectly via cpu_physical_memory_rw(). Add a new API to convert target addresses to host pointers. In case the target address does not correspond to RAM, a bounce buffer is allocated. To prevent the guest from causing the host to allocate unbounded amounts of bounce buffer, this memory is limited (currently to one page). Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6394 c046a42c-6fe2-441c-8c8c-71466251a162
2009-01-14Add noreturn function attributeblueswir1
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__malc
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 boilerplateaurel32
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
2008-12-11Fix warnings introduced in r5948malc
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5976 c046a42c-6fe2-441c-8c8c-71466251a162
2008-12-09KVM: Coalesced MMIO supportaliguori
MMIO exits are more expensive in KVM or Xen than in QEMU because they involve, at least, privilege transitions. However, MMIO write operations can be effectively batched if those writes do not have side effects. Good examples of this include VGA pixel operations when in a planar mode. As it turns out, we can get a nice boost in other areas too. Laurent mentioned a 9.7% performance boost in iperf with the coalesced MMIO changes for the e1000 when he originally posted this work for KVM. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5961 c046a42c-6fe2-441c-8c8c-71466251a162
2008-12-08linux-user: Introduce h2g_validaurel32
Introduce h2g_valid to check if a given host address can be converted into a valid guest address. Based on a patch from Jan Kiszka <jan.kiszka@web.de> Signed-off-by: Kirill A. Shutemov <kirill@shutemov.name> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5956 c046a42c-6fe2-441c-8c8c-71466251a162
2008-12-08linux-user: Safety belt for h2gaurel32
h2g can only work on 64-bit hosts if the provided address is mappable to the guest range. Neglecting this was already the source for several bugs. Instrument the macro so that it will trigger earlier in the future (at least as long as we have this kind of mapping mechanism). Based on a patch from Jan Kiszka <jan.kiszka@web.de> Signed-off-by: Kirill A. Shutemov <kirill@shutemov.name> Acked-by: Edgar E. Iglesias <edgar.iglesias@gmail.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5955 c046a42c-6fe2-441c-8c8c-71466251a162
2008-12-07Make memory load functions (ldxx_y(ptr)) take a const pointer.balrog
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5948 c046a42c-6fe2-441c-8c8c-71466251a162
2008-12-01Change MMIO callbacks to use offsets, not absolute addresses.pbrook
Signed-off-by: Paul Brook <paul@codesourcery.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5849 c046a42c-6fe2-441c-8c8c-71466251a162
2008-11-24vga optimization (Glauber Costa)aliguori
Hypervisors like KVM perform badly while doing mmio on a loop, because it'll generate an exit on each access. This is the case with VGA, which results in very bad performance. In this patch, we map the linear frame buffer as RAM, make sure it has dirty region tracking enabled, and then just let the region to be written. Cleanups suggestions by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Signed-off-by: Glauber Costa <glommer@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5793 c046a42c-6fe2-441c-8c8c-71466251a162
2008-11-18Introduce BP_CPU as a breakpoint type (Jan Kiszka)aliguori
Add another breakpoint/watchpoint type to BP_GDB: BP_CPU. This type is intended for hardware-assisted break/watchpoint emulations like the x86 architecture requires. To keep the highest priority for BP_GDB breakpoints, this type is always inserted at the head of break/watchpoint lists, thus is found first when looking up the origin of a debug interruption. 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@5746 c046a42c-6fe2-441c-8c8c-71466251a162
2008-11-18Introduce BP_WATCHPOINT_HIT flag (Jan Kiszka)aliguori
When one watchpoint is hit, others might have triggered as well. To support users of the watchpoint API which need to detect such cases, the BP_WATCHPOINT_HIT flag is introduced and maintained. 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@5744 c046a42c-6fe2-441c-8c8c-71466251a162
2008-11-18Restore pc on watchpoint hits (Jan Kiszka)aliguori
In order to provide accurate information about the triggering instruction, this patch adds the required bits to restore the pc if the access happened inside a TB. With the BP_STOP_BEFORE_ACCESS flag, the watchpoint user can control if the debug trap should be issued on or after the accessing instruction. 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@5741 c046a42c-6fe2-441c-8c8c-71466251a162
2008-11-18Refactor and enhance break/watchpoint API (Jan Kiszka)aliguori
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
2008-10-06Add dirty tracking for live migrationaliguori
This patch adds a dirty tracking bit for live migration. We use 0x08 because kqemu uses 0x04. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5433 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-02Make CPULogItem tables constblueswir1
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5397 c046a42c-6fe2-441c-8c8c-71466251a162
2008-09-14Revert incorrect part of r4574 to avoid unaligned traps with i386 targetblueswir1
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5209 c046a42c-6fe2-441c-8c8c-71466251a162
2008-07-03Avoid compiler warning.ths
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4844 c046a42c-6fe2-441c-8c8c-71466251a162
2008-06-29Add instruction counter.pbrook
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4799 c046a42c-6fe2-441c-8c8c-71466251a162
2008-06-09Clean up MMIO TLB handling.pbrook
The IO index is now stored in its own field, instead of being wedged into the vaddr field. This eliminates the ROMD and watchpoint host pointer weirdness. The IO index space is expanded by 1 bit, and several additional bits are made available in the TLB vaddr field. git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4704 c046a42c-6fe2-441c-8c8c-71466251a162
2008-05-28variable dynamic translation buffer sizebellard
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4600 c046a42c-6fe2-441c-8c8c-71466251a162
2008-05-25Implement byte swapping accessesblueswir1
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4574 c046a42c-6fe2-441c-8c8c-71466251a162
2008-05-23TCG profiler clean upbellard
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4538 c046a42c-6fe2-441c-8c8c-71466251a162
2008-05-17Add support for the 'k' (kill) and 'D' (detach) packets (Jason Wessel).edgar_igl
Implement the 'k' gdbserial packet which kills the qemu instance via the debugger stub. Implement the 'D' detach packet for the gdb stub such that you can disconnect gdb with the "detach" command. This required implementing a cpu_breakpoint_remove_all() and a cpu_watchpoint_remove_all() function to cleanup all the breakpoints and watchpoints prior to leaving the gdb stub else simulation can stop with no debugger attached. On a '?' packet remove all the breakpoints and watchpoints. This is considered more of a safety net in case you force killed gdb or it crashed and you are reconnecting. The identical behavior exists for kgdb in the linux kernel. git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4478 c046a42c-6fe2-441c-8c8c-71466251a162
2008-05-12removed unused codebellard
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4434 c046a42c-6fe2-441c-8c8c-71466251a162
2008-05-10Fix compiler warnings in common filesblueswir1
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4405 c046a42c-6fe2-441c-8c8c-71466251a162
2008-05-09Move #include "softfloat.h" to cpu-all.haurel32
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4395 c046a42c-6fe2-441c-8c8c-71466251a162
2008-05-09Debugger single step without interrupts (Jason Wessel).edgar_igl
This patch allows the qemu backend debugger to single step an instruction without running the hardware interrupts. git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4391 c046a42c-6fe2-441c-8c8c-71466251a162
2008-04-27Use correct types to enable > 2G support, based on a patch fromaurel32
Anthony Liguori. git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4265 c046a42c-6fe2-441c-8c8c-71466251a162
2008-04-22Revert "Use correct types to enable > 2G support" (r4238), it isaurel32
not yet ready. git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4240 c046a42c-6fe2-441c-8c8c-71466251a162
2008-04-22Use correct types to enable > 2G support, based on a patch fromaurel32
Anthony Liguori. git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4238 c046a42c-6fe2-441c-8c8c-71466251a162
2008-04-13x86: Introduce CPU_INTERRUPT_NMIaurel32
(Jan Kiszka) git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4205 c046a42c-6fe2-441c-8c8c-71466251a162
2008-04-12HPPA (PA-RISC) host supportaurel32
(Stuart Brady) git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4199 c046a42c-6fe2-441c-8c8c-71466251a162
2008-03-13Use float32/64 instead of float/doubleaurel32
The patch below uses the float32 and float64 types instead of the float and double types in the PPC code. This doesn't change anything when using softfloat-native as the types are the same, but that helps compiling the PPC target with softfloat. It also defines a new union CPU_FloatU in addition to CPU_DoubleU, and use them instead of identical unions that are defined in numerous places. git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4047 c046a42c-6fe2-441c-8c8c-71466251a162
2008-02-01reverted -translation option supportbellard
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3947 c046a42c-6fe2-441c-8c8c-71466251a162
2008-02-01use the TCG code generatorbellard
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3944 c046a42c-6fe2-441c-8c8c-71466251a162
2008-01-23Add option to disable TB cache, by Herve Poussineau.ths
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3930 c046a42c-6fe2-441c-8c8c-71466251a162
2008-01-01 Support for registering address space only for some access widthsblueswir1
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3879 c046a42c-6fe2-441c-8c8c-71466251a162
2007-12-12Mark host pages as reserved (Magnus Damm).balrog
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3813 c046a42c-6fe2-441c-8c8c-71466251a162
2007-11-25 128-bit float support for user modeblueswir1
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3740 c046a42c-6fe2-441c-8c8c-71466251a162
2007-11-14suppressed page_unprotect_range() - fixed access_ok()bellard
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3641 c046a42c-6fe2-441c-8c8c-71466251a162
2007-11-02EFAULT - verify pages are in cache and are read/write, by Thayne Harbaugh.ths
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3506 c046a42c-6fe2-441c-8c8c-71466251a162
2007-09-23SVM Support, by Alexander Graf.ths
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3210 c046a42c-6fe2-441c-8c8c-71466251a162
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