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2013-07-04ioport: Move portio types to ioport.hJan Kiszka
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 Kiszka
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 Kiszka
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 Kiszka
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 Kiszka
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 Färber
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 Färber
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 Färber
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 Färber
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. Hines
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 Kardashevskiy
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 Gibson
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 Kivity
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 Bonzini
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 Bonzini
size" This reverts commit 86a8623692b1b559a419a92eb8b6897c221bca74. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-06-20exec: return MemoryRegion from address_space_translatePaolo Bonzini
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 Kiszka
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 Bonzini
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-06-14Merge remote-tracking branch 'pmaydell/tcg-aarch64.next' into stagingAnthony Liguori
# By Claudio Fontana (9) and others # Via Peter Maydell * pmaydell/tcg-aarch64.next: MAINTAINERS: add tcg/aarch64 maintainer configure: permit compilation on arm aarch64 tcg/aarch64: implement user mode qemu ld/st user-exec.c: aarch64 initial implementation of cpu_signal_handler tcg/aarch64: implement sign/zero extend operations tcg/aarch64: implement byte swap operations tcg/aarch64: implement AND/TEST immediate pattern tcg/aarch64: improve arith shifted regs operations tcg/aarch64: implement new TCG target for aarch64 include/elf.h: add aarch64 ELF machine and relocs configure: Drop CONFIG_ATFILE test linux-user: Drop direct use of openat etc syscalls linux-user: Allow getdents to be provided by getdents64 Message-id: 1371052645-9006-1-git-send-email-peter.maydell@linaro.org Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-06-12tcg/aarch64: implement new TCG target for aarch64Claudio Fontana
add preliminary support for TCG target aarch64. Signed-off-by: Claudio Fontana <claudio.fontana@huawei.com> Reviewed-by: Richard Henderson <rth@twiddle.net> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 51A5C596.3090108@huawei.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2013-06-05tcg: Use QEMU_BUILD_BUG_ON for CPU_TLB_ENTRY_BITSRichard Henderson
Rather than a hand-coded version of the same thing. Reviewed-by: Andreas Färber <afaerber@suse.de> Reviewed-by: liguang <lig.fnst@cn.fujitsu.com> Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-05-29memory: add return value to address_space_rw/read/writePaolo Bonzini
Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-05-29memory: propagate errors on I/O dispatchPaolo Bonzini
Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-05-29exec: just use io_mem_read/io_mem_write for 8-byte I/O accessesPaolo Bonzini
The memory API is able to split it in two 4-byte accesses. Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-05-29memory: add address_space_access_validPaolo Bonzini
The old-style IOMMU lets you check whether an access is valid in a given DMAContext. There is no equivalent for AddressSpace in the memory API, implement it with a lookup of the dispatch tree. Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-05-29memory: export memory_region_access_valid to exec.cPaolo Bonzini
We'll use it to implement address_space_access_valid. Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-05-29memory: move unassigned_mem_ops to memory.cPaolo Bonzini
reservation_ops is already doing the same thing. Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-05-29memory: add address_space_translatePaolo Bonzini
Using phys_page_find to translate an AddressSpace to a MemoryRegionSection is unwieldy. It requires to pass the page index rather than the address, and later memory_region_section_addr has to be called. Replace memory_region_section_addr with a function that does all of it: call phys_page_find, compute the offset within the region, and check how big the current mapping is. This way, a large flat region can be written with a single lookup rather than a page at a time. address_space_translate will also provide a single point where IOMMU forwarding is implemented. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-05-29exec: make io_mem_unassigned privatePaolo Bonzini
There is no reason to avoid a recompile before accessing unassigned memory. In the end it will be treated as MMIO anyway. Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-05-29exec: eliminate io_mem_ramPaolo Bonzini
It is never used, the IOTLB always goes through io_mem_notdirty. In fact in softmmu_template.h, if it were, QEMU would crash just below the tests, as soon as io_mem_read/write dispatches to error_mem_read/write. Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-05-24memory: limit sections in the radix tree to the actual address space sizeAvi Kivity
The radix tree is statically sized to fit TARGET_PHYS_ADDR_SPACE_BITS. If a larger memory region is registered, it will overflow. Fix by limiting any section in the radix tree to the supported size. This problem was not observed earlier since 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. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Avi Kivity <avi.kivity@gmail.com> [ Fail the build if TARGET_PHYS_ADDR_SPACE_BITS is too large - Paolo ] Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-05-24memory: make memory_global_sync_dirty_bitmap take an AddressSpacePaolo Bonzini
Since this is a MemoryListener operation, it only makes sense on an AddressSpace granularity. Suggested-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-05-24memory: Rename readable flag to romd_modeJan Kiszka
"Readable" is a very unfortunate name for this flag because even a rom_device region will always be readable from the guest POV. What differs is the mapping, just like the comments had to explain already. Also, readable could currently be understood as being a generic region flag, but it only applies to rom_device regions. So rename the flag and the function to modify it after the original term "ROMD" which could also be interpreted as "ROM direct", i.e. ROM mode with direct access. In any case, the scope of the flag is clearer now. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-05-24memory: allow memory_region_find() to run on non-root memory regionsPaolo Bonzini
memory_region_find() is similar to registering a MemoryListener and checking for the MemoryRegionSections that come from a particular region. There is no reason for this to be limited to a root memory region. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-05-24exec: eliminate stq_phys_notdirtyPaolo Bonzini
It is not used anywhere. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-05-24exec: make qemu_get_ram_ptr privatePaolo Bonzini
It is a private interface between exec.c and memory.c. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-05-24exec: eliminate qemu_put_ram_ptrPaolo Bonzini
Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-04-27tcg-arm: Convert to CONFIG_QEMU_LDST_OPTIMIZATIONRichard Henderson
Move the slow path out of line, as the TODO's mention. This allows the fast path to be unconditional, which can speed up the fast path as well, depending on the core. Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-04-18elfload: use abi_llong/ullong instead of target_llong/ullongPaolo Bonzini
The alignment is a characteristic of the ABI, not the CPU. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2013-04-18elfload: only give abi_long/ulong the alignment specified by the targetPaolo Bonzini
Previously, this was done for target_long/ulong, and propagated to abi_long/ulong via a typedef. But target_long/ulong should not have any specific alignment, it is never used to access guest memory. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2013-04-18elfload: use abi_int/uint instead of target_int/uintPaolo Bonzini
The alignment is a characteristic of the ABI, not the CPU. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2013-04-18elfload: use abi_short/ushort instead of target_short/ushortPaolo Bonzini
The alignment is a characteristic of the ABI, not the CPU. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2013-04-15exec: remove useless declarations from memory-internal.hPaolo Bonzini
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-04-15memory: move core typedefs to qemu/typedefs.hPaolo Bonzini
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-04-08hw: move headers to include/Paolo Bonzini
Many of these should be cleaned up with proper qdev-/QOM-ification. Right now there are many catch-all headers in include/hw/ARCH depending on cpu.h, and this makes it necessary to compile these files per-target. However, fixing this does not belong in these patches. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-03-12cpu: Pass CPUState to cpu_interrupt()Andreas Färber
Move it to qom/cpu.h to avoid issues with include order. Change pc_acpi_smi_interrupt() opaque to X86CPU. Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-03-12exec: Pass CPUState to cpu_reset_interrupt()Andreas Färber
Move it to qom/cpu.c to avoid build failures depending on include order of cpu-qom.h and exec/cpu-all.h. Change opaques of various ..._irq_handler() functions to the appropriate CPU type to facilitate using cpu_reset_interrupt(). Fix Coding Style issues while at it (missing braces, indentation). Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-03-12cpu: Move halted and interrupt_request fields to CPUStateAndreas Färber
Both fields are used in VMState, thus need to be moved together. Explicitly zero them on reset since they were located before breakpoints. Pass PowerPCCPU to kvmppc_handle_halt(). Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-03-09tcg: Don't make exitreq flag a local temporaryRichard Henderson
The value is not actually live across basic blocks, so there's no need for the local property. This eliminates storing the temporary to its home location at the branch. Signed-off-by: Richard Henderson <rth@twiddle.net> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2013-03-03gen-icount.h: Rename gen_icount_start/end to gen_tb_start/endPeter Maydell
The gen_icount_start/end functions are now somewhat misnamed since they are useful for generic "start/end of TB" code, used for more than just icount. Rename them to gen_tb_start/end. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
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