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2014-06-18target-mips: get_physical_address: Add KVM awarenessJames Hogan1-7/+26
MIPS KVM trap & emulate mode (which is currently the only supported mode) has to add an extra kseg0/kseg1 at 0x40000000 and an extra kseg2/kseg3 at 0x60000000. Take this into account in get_physical_address() so that debug memory access works. This is done by translating the address to a standard kseg0 or kseg2 address before doing the normal address translation. The real virtual address is still used for TLB lookups. Signed-off-by: James Hogan <james.hogan@imgtec.com> Cc: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-06-18target-mips: get_physical_address: Add defines for segment basesJames Hogan1-6/+12
Add preprocessor definitions for 32bit segment bases for use in get_physical_address(). These will also be taken advantage of in the next patch which adds KVM awareness. Signed-off-by: James Hogan <james.hogan@imgtec.com> Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-03-27target-mips: Avoid shifting left into sign bitPeter Maydell1-4/+4
Add U suffix to various places where we shift a 1 left by 31, to avoid undefined behaviour. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2014-03-13cputlb: Change tlb_set_page() argument to CPUStateAndreas Färber1-1/+1
Signed-off-by: Andreas Färber <afaerber@suse.de>
2014-03-13cputlb: Change tlb_flush_page() argument to CPUStateAndreas Färber1-2/+6
Signed-off-by: Andreas Färber <afaerber@suse.de>
2014-03-13cpu: Move exception_index field from CPU_COMMON to CPUStateAndreas Färber1-14/+17
Signed-off-by: Andreas Färber <afaerber@suse.de>
2014-03-13cpu: Turn cpu_handle_mmu_fault() into a CPUClass hookAndreas Färber1-6/+9
Note that while such functions may exist both for *-user and softmmu, only *-user uses the CPUState hook, while softmmu reuses the prototype for calling it directly. Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-08-28target-mips: fix get_physical_address() #if 0 build errorJames Hogan1-1/+1
In get_physical_address() is a qemu_log() call inside an #if 0 block. When enabled the following build error is hit: target-mips/helper.c In function ‘get_physical_address’: target-mips/helper.c:220:13: error: format ‘%x’ expects argument of type ‘unsigned int’, but argument 5 has type ‘hwaddr’ [-Werror=format] Fix the *physical (hwaddr) formatting by using "%"HWADDR_PRIx instead of TARGET_FMT_lx. Signed-off-by: James Hogan <james.hogan@imgtec.com> Cc: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Yongbok Kim <yongbok.kim@imgtec.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2013-07-23cpu: Turn cpu_get_phys_page_debug() into a CPUClass hookAndreas Färber1-2/+5
Change breakpoint_invalidate() argument to CPUState alongside. Since all targets now assign a softmmu-only field, we can drop helpers cpu_class_set_{do_unassigned_access,vmsd}() and device_class_set_vmsd(). Prepares for changing cpu_memory_rw_debug() argument to CPUState. Acked-by: Max Filippov <jcmvbkbc@gmail.com> (for xtensa) Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-09log: Change log_cpu_state[_mask]() argument to CPUStateAndreas Färber1-1/+1
Since commit 878096eeb278a8ac1ccd6667af73e026f29b4cf5 (cpu: Turn cpu_dump_{state,statistics}() into CPUState hooks) CPUArchState is no longer needed. Add documentation and make the functions available through qemu/log.h outside NEED_CPU_H to allow use in qom/cpu.c. Moving them to qom/cpu.h was not yet possible due to convoluted include paths, so that some devices grow an implicit and unneeded dependency on qom/cpu.h for now. Acked-by: Michael Walle <michael@walle.cc> (for lm32) Reviewed-by: Richard Henderson <rth@twiddle.net> [AF: Simplified mb_cpu_do_interrupt() and do_interrupt_all() changes] Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-05-20linux-user: Save the correct resume address for MIPS signal handlingKwok Cheung Yeung1-2/+2
The current ISA mode needs to be saved in bit 0 of the resume address. If the current instruction happens to be in a branch delay slot, then the address of the preceding jump instruction should be stored instead. exception_resume_pc already does both of these tasks, so it is made available and reused. MIPS_HFLAG_BMASK in hflags is cleared, otherwise QEMU may treat the first instruction of the signal handler as a delay slot instruction. Signed-off-by: Kwok Cheung Yeung <kcy@codesourcery.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2013-03-12cpu: Replace do_interrupt() by CPUClass::do_interrupt methodAndreas Färber1-2/+3
This removes a global per-target function and thus takes us one step closer to compiling multiple targets into one executable. It will also allow to override the interrupt handling for certain CPU families. Signed-off-by: Andreas Färber <afaerber@suse.de>
2012-10-31target-mips: Add ASE DSP resources access checkJia Liu1-0/+3
Add MIPS ASE DSP resources access check. Signed-off-by: Jia Liu <proljc@gmail.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2012-10-23Rename target_phys_addr_t to hwaddrAvi Kivity1-9/+9
target_phys_addr_t is unwieldly, violates the C standard (_t suffixes are reserved) and its purpose doesn't match the name (most target_phys_addr_t addresses are not target specific). Replace it with a finger-friendly, standards conformant hwaddr. Outstanding patchsets can be fixed up with the command git rebase -i --exec 'find -name "*.[ch]" | xargs s/target_phys_addr_t/hwaddr/g' origin Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-06-04target-mips: Use cpu_reset() in do_interrupt()Andreas Färber1-1/+2
Signed-off-by: Andreas Färber <afaerber@suse.de>
2012-03-14target-mips: Don't overuse CPUStateAndreas Färber1-12/+12
Scripted conversion: sed -i "s/CPUState/CPUMIPSState/g" target-mips/*.[hc] sed -i "s/#define CPUMIPSState/#define CPUState/" target-mips/cpu.h Signed-off-by: Andreas Färber <afaerber@suse.de> Acked-by: Anthony Liguori <aliguori@us.ibm.com>
2012-03-14Rename cpu_reset() to cpu_state_reset()Andreas Färber1-1/+1
Frees the identifier cpu_reset for QOM CPUs (manual rename). Don't hide the parameter type behind explicit casts, use static functions with strongly typed argument to indirect. Signed-off-by: Andreas Färber <afaerber@suse.de> Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
2011-12-14Fix spelling in comments, documentation and messagesStefan Weil1-1/+1
accidently->accidentally annother->another choosen->chosen consideres->considers decriptor->descriptor developement->development paramter->parameter preceed->precede preceeding->preceding priviledge->privilege propogation->propagation substraction->subtraction throught->through upto->up to usefull->useful Fix also grammar in posix-aio-compat.c Signed-off-by: Stefan Weil <sw@weilnetz.de> Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2011-09-06mips: Correct VInt vector generationEdgar E. Iglesias1-3/+3
1. The pending need to pass the Status IM gating. 2. The priority is from seven (highest prio) down to zero. QEMU was doing the opposite. Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2011-08-07Remove unused is_softmmu parameter from cpu_handle_mmu_faultBlue Swirl1-3/+3
Parameter is_softmmu (and its evil mutant twin brother is_softmuu) is not used in cpu_*_handle_mmu_fault() functions, remove them and adjust callers. Acked-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-06-26Remove exec-all.h include directivesBlue Swirl1-1/+0
Most exec-all.h include directives are now useless, remove them. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-05-15target-mips: Fix warning caused by unused local variableAurelien Jarno1-8/+6
Fix compilation with gcc-4.6, based on a patch from Stefan Weil <weil@mail.berlios.de>. Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-08-06mips: Add support for VInt and VEIC irq modesEdgar E. Iglesias1-0/+27
Signed-off-by: Edgar E. Iglesias <edgar@axis.com>
2010-07-17target-mips: fix xtlb exception for loongsonAurelien Jarno1-2/+4
Loongson 2E and 2F use the same entry for xtlb and tlb exception, at offset 0x000. Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-06-09target-mips: add microMIPS exception handler supportNathan Froyd1-6/+15
Unlike MIPS16, microMIPS lets you choose the ISA mode for your exception handlers. The ISA mode is selectable via a user-writable CP0.Config3 flag. Signed-off-by: Nathan Froyd <froydnj@codesourcery.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-03-17Large page TLB flushPaul Brook1-3/+4
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>
2010-03-12Target specific usermode cleanupPaul Brook1-1/+4
Disable various target specific code that is only relevant to system emulation. Signed-off-by: Paul Brook <paul@codesourcery.com>
2010-03-12Remove cpu_get_phys_page_debug from userspace emulationPaul Brook1-4/+2
cpu_get_phys_page_debug makes no sense for userspace emulation, so remove it. Signed-off-by: Paul Brook <paul@codesourcery.com>
2010-02-06target-mips: don't call cpu_loop_exit() from helper.cAurelien Jarno1-4/+4
In helper.c AREG0 may not correspond do env, so it's not possible to call cpu_loop_exit() here. Call it from op_helper.c instead. Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2009-12-13target-mips: change interrupt bits to be mips16-awareNathan Froyd1-21/+30
We need to stash the operating mode into the low bit of the error PC and restore it on return from interrupts. Signed-off-by: Nathan Froyd <froydnj@codesourcery.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2009-11-30target-mips: add a function to do virtual -> physical translationsAurelien Jarno1-0/+23
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2009-11-30target-mips: split code raising MMU exception in a separate functionAurelien Jarno1-46/+53
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2009-11-22target-mips: fix physical address type in MMU functionsAurelien Jarno1-7/+7
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2009-10-01Revert "Get rid of _t suffix"Anthony Liguori1-3/+3
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 suffixmalc1-3/+3
Some not so obvious bits, slirp and Xen were left alone for the time being. Signed-off-by: malc <av1474@comtv.ru>
2009-09-30target-mips: unmatched brackets in if 0Michael S. Tsirkin1-1/+0
Fix unmatched braket in commented out code Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2009-07-16Update to a hopefully more future proof FSF addressBlue Swirl1-2/+1
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2009-05-13Include assert.h from qemu-common.hPaul Brook1-1/+0
Include assert.h from qemu-common.h and remove other direct uses. cpu-all.h still need to include it because of the dyngen-exec.h hacks Signed-off-by: Paul Brook <paul@codesourcery.com>
2009-01-15Convert references to logfile/loglevel to use qemu_log*() macrosaliguori1-25/+14
This is a large patch that changes all occurrences of logfile/loglevel global variables to use the new qemu_log*() macros. Signed-off-by: Eduardo Habkost <ehabkost@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6338 c046a42c-6fe2-441c-8c8c-71466251a162
2009-01-14target-mips: fix indentationaurel321-19/+19
Remove all tabs from target-mips/* Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6306 c046a42c-6fe2-441c-8c8c-71466251a162
2009-01-12target-mips: get rid of tests on env->user_mode_onlyaurel321-220/+223
Replace runtime checks on env->user_mode_only by compile time checks on CONFIG_USER_ONLY. Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6276 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
2008-12-20Fix remaining compiler warnings for mips targets.ths1-4/+0
Signed-off-by: Stefan Weil <weil@mail.berlios.de> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6111 c046a42c-6fe2-441c-8c8c-71466251a162
2008-09-21Fix Xcontext fill, by Here Poussineau.ths1-1/+1
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5284 c046a42c-6fe2-441c-8c8c-71466251a162
2008-07-23Less hardcoding of TARGET_USER_ONLY.ths1-221/+215
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4928 c046a42c-6fe2-441c-8c8c-71466251a162
2008-06-27More efficient target register / TC accesses.ths1-15/+15
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4794 c046a42c-6fe2-441c-8c8c-71466251a162
2008-03-29Fix infinite loop when invalidating TLB, by Herve Poussineau.ths1-1/+1
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4136 c046a42c-6fe2-441c-8c8c-71466251a162
2008-01-04Handle some more exception types.ths1-29/+43
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3886 c046a42c-6fe2-441c-8c8c-71466251a162
2008-01-03Fix exception debug output.ths1-39/+36
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3885 c046a42c-6fe2-441c-8c8c-71466251a162
2007-12-26De-cruft exception definitions, and implement nicer debug output.ths1-11/+53
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3861 c046a42c-6fe2-441c-8c8c-71466251a162
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