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2013-07-27exec: Remove env from list of poisoned namesStefan Weil1-1/+0
The global variable env was removed some time ago, so this name may be used without any restriction now. Signed-off-by: Stefan Weil <sw@weilnetz.de> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2013-07-27cpu: Introduce CPUClass::gdb_{read,write}_register()Andreas Färber1-0/+8
Completes migration of target-specific code to new target-*/gdbstub.c. Acked-by: Michael Walle <michael@walle.cc> (for lm32) Acked-by: Max Filippov <jcmvbkbc@gmail.com> (for xtensa) Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-27gdbstub: Replace GET_REG*() macros with gdb_get_reg*() functionsAndreas Färber1-0/+37
This avoids polluting the global namespace with a non-prefixed macro and makes it obvious in the call sites that we return. Semi-automatic conversion using, e.g., sed -i 's/GET_REGL(/return gdb_get_regl(mem_buf, /g' target-*/gdbstub.c followed by manual tweaking for sparc's GET_REGA() and Coding Style. Acked-by: Michael Walle <michael@walle.cc> (for lm32) Acked-by: Max Filippov <jcmvbkbc@gmail.com> (for xtensa) Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-26Merge remote-tracking branch 'rth/tcg-next' into stagingAnthony Liguori2-2/+14
# By Claudio Fontana (1) and others # Via Richard Henderson * rth/tcg-next: tcg: Remove temp_buf tcg/aarch64: Implement tlb lookup fast path tcg/aarch64: implement ldst 12bit scaled uimm offset Message-id: 1373919944-8521-1-git-send-email-rth@twiddle.net Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-07-25Merge remote-tracking branch 'riku/linux-user-for-upstream' into stagingAnthony Liguori2-3/+7
* riku/linux-user-for-upstream: (21 commits) linux-user: Handle compressed ISA encodings when processing MIPS exceptions linux-user: Unlock mmap_lock when resuming guest from page_unprotect linux-user: Reset copied CPUs in cpu_copy() always linux-user: Fix epoll on ARM hosts linux-user: fix segmentation fault passing with h2g(x) != x linux-user: Fix pipe syscall return for SPARC linux-user: Fix target_stat and target_stat64 for OpenRISC linux-user: Avoid conditional cpu_reset() configure: Make NPTL non-optional linux-user: Enable NPTL for x86-64 linux-user: Add i386 TLS setter linux-user: Clean up handling of clone() argument order linux-user: Add missing 'break' in i386 get_thread_area syscall linux-user: Enable NPTL for m68k linux-user: Enable NPTL for SPARC targets linux-user: Enable NPTL for OpenRISC linux-user: Move includes of target-specific headers to end of qemu.h configure: Enable threading for unicore32-linux-user configure: Enable threading on all ppc and mips linux-user targets configure: Don't say target_nptl="no" if there is no linux-user target ... Conflicts: linux-user/main.c Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-07-23linux-user: fix segmentation fault passing with h2g(x) != xAlexander Graf1-2/+6
When forwarding a segmentation fault into the guest process, we were passing the host's address directly into the guest process's signal descriptor. That obviously confused the guest process, since it didn't know what to make of the (usually 32-bit truncated) address. Passing in h2g(address) makes the guest process a lot happier. To make the code more obvious, introduce a h2g_nocheck() macro that does the same as h2g(), but allows us to convert addresses that may be outside of guest mapped range into the guest's view of address space. This fixes java running in arm-linux-user for me. Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2013-07-23gdbstub: Change gdb_register_coprocessor() argument to CPUStateAndreas Färber1-1/+1
Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-23cpu: Move gdb_regs field from CPU_COMMON to CPUStateAndreas Färber1-2/+0
Prepares for changing gdb_register_coprocessor() argument to CPUState. Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-23exec: Change cpu_memory_rw_debug() argument to CPUStateAndreas Färber2-9/+12
Propagate X86CPU in kvmvapic for simplicity. Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-23cpu: Turn cpu_get_phys_page_debug() into a CPUClass hookAndreas Färber1-5/+0
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>
2013-07-23gdbstub: Change gdb_handlesig() argument to CPUStateAndreas Färber1-1/+1
Prepares for changing GDBState::c_cpu to CPUState. Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-23gdbstub: Change syscall callback argument to CPUStateAndreas Färber1-1/+1
Callback implementations were specific to arm and m68k, so can easily cast to ARMCPU and M68kCPU respectively. Prepares for changing GDBState::c_cpu to CPUState. Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-23cpu: Change cpu_single_step() argument to CPUStateAndreas Färber1-6/+0
Use CPUState::env_ptr for now. Needed for GdbState::c_cpu. Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-23cpu: Move singlestep_enabled field from CPU_COMMON to CPUStateAndreas Färber1-1/+0
Prepares for changing cpu_single_step() argument to CPUState. Acked-by: Michael Walle <michael@walle.cc> (for lm32) Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-22configure: Make NPTL non-optionalPeter Maydell1-1/+1
Now all linux-user targets support building with NPTL, we can make it mandatory. This is a good idea because: * NPTL is no longer new and experimental; it is completely standard * in practice, linux-user without NPTL is nearly useless for binaries built against non-ancient glibc * it allows us to delete the rather untested code for handling the non-NPTL configuration Note that this patch leaves the CONFIG_USE_NPTL ifdefs in the bsd-user codebase alone. This makes no change for bsd-user, since our configure test for NPTL had a "#include <linux/futex.h>" which means bsd-user would never have been compiled with CONFIG_USE_NPTL defined, and it still is not. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2013-07-15Merge git://github.com/hw-claudio/qemu-aarch64-queue into tcg-nextRichard Henderson1-0/+14
2013-07-15tcg: Remove temp_bufRichard Henderson1-2/+0
All targets have been converted to allocating space for temporaries on the stack. No need to allocate space within the CPU_COMMON block. Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-07-15tcg/aarch64: Implement tlb lookup fast pathJani Kokkonen1-0/+14
Supports CONFIG_QEMU_LDST_OPTIMIZATION Signed-off-by: Jani Kokkonen <jani.kokkonen@huawei.com> Reviewed-by: Richard Henderson <rth@twiddle.net> Reviewed-by: Claudio Fontana <claudio.fontana@huawei.com>
2013-07-10Merge remote-tracking branch 'afaerber/tags/qom-cpu-for-anthony' into stagingAnthony Liguori2-5/+0
QOM CPUState refactorings * Fix for OpenRISCCPU subclasses * Fix for gdbstub CPU selection * Move linux-user CPU functions into new header * CPUState part 10 refactoring: first_cpu, next_cpu, cpu_single_env et al. * Fix some targets to consistently inline TCG code generation * Centrally log CPU reset # gpg: Signature made Wed 10 Jul 2013 07:52:39 AM CDT using RSA key ID 3E7E013F # gpg: Can't check signature: public key not found # By Andreas Färber (41) and others # Via Andreas Färber * afaerber/tags/qom-cpu-for-anthony: (43 commits) cpu: Move reset logging to CPUState target-ppc: Change LOG_MMU_STATE() argument to CPUState target-i386: Change LOG_PCALL_STATE() argument to CPUState log: Change log_cpu_state[_mask]() argument to CPUState target-i386: Change do_smm_enter() argument to X86CPU target-i386: Change do_interrupt_all() argument to X86CPU target-xtensa: Change gen_intermediate_code_internal() arg to XtensaCPU target-unicore32: Change gen_intermediate_code_internal() signature target-sparc: Change gen_intermediate_code_internal() argument to SPARCCPU target-sh4: Change gen_intermediate_code_internal() argument to SuperHCPU target-s390x: Change gen_intermediate_code_internal() argument to S390CPU target-ppc: Change gen_intermediate_code_internal() argument to PowerPCCPU target-mips: Change gen_intermediate_code_internal() argument to MIPSCPU target-microblaze: Change gen_intermediate_code_internal() argument types target-m68k: Change gen_intermediate_code_internal() argument to M68kCPU target-lm32: Change gen_intermediate_code_internal() argument to LM32CPU target-i386: Change gen_intermediate_code_internal() argument to X86CPU target-cris: Change gen_intermediate_code_internal() argument to CRISCPU target-arm: Change gen_intermediate_code_internal() argument to ARMCPU target-alpha: Change gen_intermediate_code_internal() argument to AlphaCPU ...
2013-07-09cpu: Make first_cpu and next_cpu CPUStateAndreas Färber2-2/+0
Move next_cpu from CPU_COMMON to CPUState. Move first_cpu variable to qom/cpu.h. gdbstub needs to use CPUState::env_ptr for now. cpu_copy() no longer needs to save and restore cpu_next. Acked-by: Paolo Bonzini <pbonzini@redhat.com> [AF: Rebased, simplified cpu_copy()] Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-09cpu: Replace cpu_single_env with CPUState current_cpuAndreas Färber1-3/+0
Move it to qom/cpu.h. Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-09exec: Remove unused global variable phys_ram_fdStefan Weil1-1/+0
It seems to be unused since several years (commit be995c27640a82c7056b6f53d02ec823570114e5 in 2006). Signed-off-by: Stefan Weil <sw@weilnetz.de> Reviewed-by: Andreas Färber <afaerber@suse.de> Message-id: 1373044036-14443-1-git-send-email-sw@weilnetz.de Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-07-04exec: separate current radix tree from the one being builtPaolo Bonzini1-0/+1
This same treatment previously done to phys_node_map and phys_sections is now applied to the dispatch field of AddressSpace. Topology updates use as->next_dispatch while accesses use as->dispatch. Reviewed-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-07-04exec: move listener from AddressSpaceDispatch to AddressSpacePaolo Bonzini1-0/+2
This will help having two copies of AddressSpaceDispatch during the recreation of the radix tree (one being built, and one that is complete and will be protected by RCU). We do not want to have to unregister and re-register the listener. Reviewed-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-07-04memory: move MemoryListener declaration earlierPaolo Bonzini1-33/+33
Reviewed-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-07-04piolist: add owner argument to initialization functions and pass devicesPaolo Bonzini1-1/+3
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-07-04memory: return MemoryRegion from qemu_ram_addr_from_hostPaolo Bonzini1-1/+1
It will be needed in the next patch. Reviewed-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-07-04exec: move qemu_ram_addr_from_host_nofail to cputlb.cPaolo Bonzini1-1/+0
After the next patch it would not be used elsewhere anyway. Also, the _nofail and the standard versions of this function return different things, which is confusing. Removing the function from the public headers limits the confusion. Reviewed-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-07-04memory: introduce memory_region_presentPaolo Bonzini1-0/+12
This new API will avoid having too many memory_region_ref/unref in paths that currently use memory_region_find. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-07-04memory: add ref/unrefPaolo Bonzini1-0/+30
Reviewed-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-07-04memory: add getter for ownerPaolo Bonzini1-0/+7
Whenever memory regions are accessed outside the BQL, they need to be preserved against hot-unplug. MemoryRegions actually do not have their own reference count; they piggyback on a QOM object, their "owner". The owner is set at creation time, and there is a function to retrieve the owner. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-07-04memory: add owner argument to initialization functionsPaolo Bonzini1-0/+17
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-07-04ioport: Move portio types to ioport.hJan Kiszka2-19/+11
This decouples memory.h from ioport.h, concentrating all portio related types in a single header. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-07-04ioport: Remove unused old dispatching servicesJan Kiszka3-45/+0
Remove unused ioport_register and isa_unassign_ioport along with everything that only those services used. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-07-04ioport: Switch dispatching to memory core layerJan Kiszka3-7/+1
The current ioport dispatcher is a complex beast, mostly due to the need to deal with old portio interface users. But we can overcome it without converting all portio users by embedding the required base address of a MemoryRegionPortio access into that data structure. That removes the need to have the additional MemoryRegionIORange structure in the loop on every access. To handle old portio memory ops, we simply install dispatching handlers for portio memory regions when registering them with the memory core. This removes the need for the old_portio field. We can drop the additional aliasing of ioport regions and also the special address space listener. cpu_in and cpu_out now simply call address_space_read/write. And we can concentrate portio handling in a single source file. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-07-04isa: implement isa_is_ioport_assigned via memory_region_findJan Kiszka1-1/+0
Open-code isa_is_ioport_assigned via a memory region lookup. As all IO ports are now directly or indirectly registered via the memory API, this becomes possible and will finally allow us to drop the ioport tables. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-07-04Privatize register_ioport_read/writeJan Kiszka1-4/+0
No more users outside of ioport.c. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-06-28hwaddr: Make hwaddr type usable beyond softmmuAndreas Färber4-4/+6
While not normally needed for *-user, it can safely be used there since always based on uint64_t, to avoid ifdeffery. To avoid accidental uses, move the guards from exec/hwaddr.h to its inclusion sites. No need for them in include/hw/. Prepares for hwaddr use in qom/cpu.h. Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-06-28gdbstub: Set gdb_set_stop_cpu() argument to CPUStateAndreas Färber1-1/+1
Use CPUState::env_ptr for now. Prepares for changing cpu_handle_guest_debug() argument to CPUState. Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-06-28cpu: Turn cpu_dump_{state,statistics}() into CPUState hooksAndreas Färber1-10/+0
Make cpustats monitor command available unconditionally. Prepares for changing kvm_handle_internal_error() and kvm_cpu_exec() arguments to CPUState. Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-06-28cpu: Change cpu_exit() argument to CPUStateAndreas Färber1-2/+0
It no longer depends on CPUArchState, so move it to qom/cpu.c. Prepares for changing GDBState::c_cpu to CPUState. Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-06-27rdma: introduce qemu_ram_foreach_block()Michael R. Hines1-0/+5
This is used during RDMA initialization in order to transmit a description of all the RAM blocks to the peer for later dynamic chunk registration purposes. Reviewed-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Chegu Vinod <chegu_vinod@hp.com> Tested-by: Chegu Vinod <chegu_vinod@hp.com> Tested-by: Michael R. Hines <mrhines@us.ibm.com> Signed-off-by: Michael R. Hines <mrhines@us.ibm.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
2013-06-20memory: give name to every AddressSpaceAlexey Kardashevskiy1-2/+4
The "info mtree" command in QEMU console prints only "memory" and "I/O" address spaces while there are actually a lot more other AddressSpace structs created by PCI and VIO devices. Those devices do not normally have names and therefore not present in "info mtree" output. The patch fixes this. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-06-20memory: Add iommu map/unmap notifiersDavid Gibson1-0/+32
This patch adds a NotifierList to MemoryRegions which represent IOMMUs allowing other parts of the code to register interest in mappings or unmappings from the IOMMU. All IOMMU implementations will need to call memory_region_notify_iommu() to inform those waiting on the notifier list, whenever an IOMMU mapping is made or removed. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-06-20memory: iommu supportAvi Kivity1-4/+62
Add a new memory region type that translates addresses it is given, then forwards them to a target address space. This is similar to an alias, except that the mapping is more flexible than a linear translation and trucation, and also less efficient since the translation happens at runtime. The implementation uses an AddressSpace mapping the target region to avoid hierarchical dispatch all the way to the resolved region; only iommu regions are looked up dynamically. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Avi Kivity <avi.kivity@gmail.com> [Modified to put translation in address_space_translate; assume IOMMUs are not reachable from TCG. - Paolo] Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-06-20memory: make section size a 128-bit integerPaolo Bonzini1-1/+4
So far, the size of all regions passed to listeners could fit in 64 bits, because artificial regions (containers and aliases) are eliminated by the memory core, leaving only device regions which have reasonable sizes An IOMMU however cannot be eliminated by the memory core, and may have an artificial size, hence we may need 65 bits to represent its size. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-06-20Revert "memory: limit sections in the radix tree to the actual address space ↵Paolo Bonzini1-3/+0
size" This reverts commit 86a8623692b1b559a419a92eb8b6897c221bca74. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-06-20exec: return MemoryRegion from address_space_translatePaolo Bonzini1-4/+4
Only address_space_translate_for_iotlb needs to return the section. Every caller of address_space_translate now uses only section->mr, return it directly. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-06-20exec: Resolve subpages in one step except for IOTLB fillsJan Kiszka1-0/+4
Except for the case of setting the IOTLB entry in TCG mode, we can avoid the subpage dispatching handlers and do the resolution directly on address_space_lookup_region. An IOTLB entry describes a full page, not only the region that the first access to a sub-divided page may return. This patch therefore introduces a special translation function, address_space_translate_for_iotlb, that avoids the subpage resolutions. In contrast, callers of the existing address_space_translate service will now always receive the terminal memory region section. This will be important for breaking the BQL and for enabling unaligned memory region. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-06-20memory: move private types to exec.cPaolo Bonzini1-15/+0
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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