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path: root/include/exec/cpu-all.h
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2015-09-09Move RAMBlock and ram_list to ram_addr.hDr. David Alan Gilbert
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Message-Id: <1439547914-18249-1-git-send-email-dgilbert@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-08-24linux-user: remove useless macros GUEST_BASE and RESERVED_VALaurent Vivier
As we have removed CONFIG_USE_GUEST_BASE, we always use a guest base and the macros GUEST_BASE and RESERVED_VA become useless: replace them by their values. Reviewed-by: Alexander Graf <agraf@suse.de> Signed-off-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <1440420834-8388-1-git-send-email-laurent@vivier.eu> Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-08-24linux-user: remove --enable-guest-base/--disable-guest-baseLaurent Vivier
All tcg host architectures now support the guest base and as there is no real performance lost, it can be always enabled. Anyway, guest base use can be disabled lively by setting guest base to 0. CONFIG_USE_GUEST_BASE is defined as (USE_GUEST_BASE && USER_ONLY), it should have to be replaced by CONFIG_USER_ONLY in non CONFIG_USER_ONLY parts, but as some other parts are using !CONFIG_SOFTMMU I have chosen to use !CONFIG_SOFTMMU instead. Reviewed-by: Alexander Graf <agraf@suse.de> Signed-off-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <1440373328-9788-2-git-send-email-laurent@vivier.eu> Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-07-06cpu-all: complete "real" host page size APIPeter Crosthwaite
Currently the "host" page size alignment API is really aligning to both host and target page sizes. There is the qemu_real_page_size which can be used for the actual host page size but it's missing a mask and ALIGN macro as provided for qemu_page_size. Complete the API. This allows system level code that cares about the host page size to use a consistent alignment interface without having to un-needingly align to the target page size. This also reduces system level code dependency on the cpu specific TARGET_PAGE_SIZE. Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com> Tested-by: Alexey Kardashevskiy <aik@ozlabs.ru> Acked-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2015-06-26include/exec: Move standard exceptions to cpu-all.hPeter Crosthwaite
These exception indicies are generic and don't have any reliance on the per-arch cpu.h defs. Move them to cpu-all.h so they can be used by core code that does not have access to cpu-defs.h. Reviewed-by: Richard Henderson <rth@redhat.com> Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com> Message-Id: <dbebd3062c7cd4332240891a3564e73f374ddfcd.1433052532.git.crosthwaite.peter@gmail.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-02-16Convert ram_list to RCUMike Day
Allow "unlocked" reads of the ram_list by using an RCU-enabled QLIST. The ramlist mutex is kept. call_rcu callbacks are run with the iothread lock taken, but that may change in the future. Writers still take the ramlist mutex, but they no longer need to assume that the iothread lock is taken. Readers of the list, instead, no longer require either the iothread or ramlist mutex, but they need to use rcu_read_lock() and rcu_read_unlock(). One place in arch_init.c was downgrading from write side to read side like this: qemu_mutex_lock_iothread() qemu_mutex_lock_ramlist() ... qemu_mutex_unlock_iothread() ... qemu_mutex_unlock_ramlist() and the equivalent idiom is: qemu_mutex_lock_ramlist() rcu_read_lock() ... qemu_mutex_unlock_ramlist() ... rcu_read_unlock() Reviewed-by: Fam Zheng <famz@redhat.com> Signed-off-by: Mike Day <ncmike@ncultra.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-02-16exec: convert ram_list to QLISTMike Day
QLIST has RCU-friendly primitives, so switch to it. Reviewed-by: Fam Zheng <famz@redhat.com> Signed-off-by: Mike Day <ncmike@ncultra.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-02-16cosmetic changes preparing for the following patchesMike Day
Reviewed-by: Fam Zheng <famz@redhat.com> Signed-off-by: Mike Day <ncmike@ncultra.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-02-16exec: protect mru_block with RCUPaolo Bonzini
Hence, freeing a RAMBlock has to be switched to call_rcu. Reviewed-by: Fam Zheng <famz@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-01-20cpu_ldst.h, cpu-all.h, bswap.h: Update documentation on ld/st accessorsPeter Maydell
Add documentation of what the cpu_*_* accessors look like. Correct some minor errors in the existing documentation of the direct _p accessor family. Remove the near-duplicate comment on the _p accessors from cpu-all.h and replace it with a reference to the comment in bswap.h. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <rth@twiddle.net> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Message-id: 1421334118-3287-16-git-send-email-peter.maydell@linaro.org
2015-01-10Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into stagingPeter Maydell
pc: resizeable ROM blocks This makes ROM blocks resizeable. This infrastructure is required for other functionality we have queued. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> # gpg: Signature made Thu 08 Jan 2015 11:19:24 GMT using RSA key ID D28D5469 # gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>" # gpg: aka "Michael S. Tsirkin <mst@redhat.com>" * remotes/mst/tags/for_upstream: acpi-build: make ROMs RAM blocks resizeable memory: API to allocate resizeable RAM MR arch_init: support resizing on incoming migration exec: qemu_ram_alloc_resizeable, qemu_ram_resize exec: split length -> used_length/max_length exec: cpu_physical_memory_set/clear_dirty_range memory: add memory_region_set_size Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-01-08exec: qemu_ram_alloc_resizeable, qemu_ram_resizeMichael S. Tsirkin
Add API to allocate "resizeable" RAM. This looks just like regular RAM generally, but has a special property that only a portion of it (used_length) is actually used, and migrated. This used_length size can change across reboots. Follow up patches will change used_length for such blocks at migration, making it easier to extend devices using such RAM (notably ACPI, but in the future thinkably other ROMs) without breaking migration compatibility or wasting ROM (guest) memory. Device is notified on resize, so it can adjust if necessary. qemu_ram_alloc_resizeable allocates this memory, qemu_ram_resize resizes it. Note: nothing prevents making all RAM resizeable in this way. However, reviewers felt that only enabling this selectively will make some class of errors easier to detect. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
2015-01-08exec: split length -> used_length/max_lengthMichael S. Tsirkin
This patch allows us to distinguish between two length values for each block: max_length - length of memory block that was allocated used_length - length of block used by QEMU/guest Currently, we set used_length - max_length, unconditionally. Follow-up patches allow used_length <= max_length. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
2014-12-17tcg: add separate monitor command to dump opcode countersMax Filippov
Currently 'info jit' outputs half of the information to monitor and the rest to qemu log. Dumping opcode counts to monitor as a part of 'info jit' command doesn't sound useful. Add new monitor command 'info opcount' that only dumps opcode counters. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Reviewed-by: Richard Henderson <rth@twiddle.net> Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
2014-12-16cpu: verify that block->host is setMichael S. Tsirkin
If it isn't, access at an offset will cause memory corruption. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Amos Kong <akong@redhat.com> Signed-off-by: Amit Shah <amit.shah@redhat.com>
2014-12-16cpu: assert host pointer offset within blockMichael S. Tsirkin
Make accesses safer in case we missed some check somewhere. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Amos Kong <akong@redhat.com> Signed-off-by: Amit Shah <amit.shah@redhat.com>
2014-12-16exec: add wrapper for host pointer accessMichael S. Tsirkin
host pointer accesses force pointer math, let's add a wrapper to make them safer. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Amos Kong <akong@redhat.com> Signed-off-by: Amit Shah <amit.shah@redhat.com>
2014-10-06translate-all.c: memory walker initial address miscalculationMikhail Ilyin
The initial base address is miscalculated in walk_memory_regions(). It has to be shifted TARGET_PAGE_BITS more. Holder variables are extended to target_ulong size otherwise they don't fit for MIPS N32 (a 32-bit ABI with a 64-bit address space) and qemu won't compile. The issue led to incorrect debug output of memory maps and a mis-formed coredumped file. Signed-off-by: Mikhail Ilyin <m.ilin@samsung.com> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2014-08-22linux-user: /proc/self/maps contentMikhail Ilyin
Build /proc/self/maps doing a match against guest memory translation table. Output only that map records which are valid for guest memory layout. Signed-off-by: Mikhail Ilyin <m.ilin@samsung.com> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2014-06-19memory: move RAM_PREALLOC_MASK to exec.c, renamePaolo Bonzini
Prepare for adding more flags. The "_MASK" suffix is unique, kill it. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Hu Tao <hutao@cn.fujitsu.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2014-06-19memory: reorganize file-based allocationPaolo Bonzini
Split the internal interface in exec.c to a separate function, and push the check on mem_path up to memory_region_init_ram. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Hu Tao <hutao@cn.fujitsu.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2014-06-19NUMA: move numa related code to new file numa.cWanlong Gao
Signed-off-by: Wanlong Gao <gaowanlong@cn.fujitsu.com> Reviewed-by: Eduardo Habkost <ehabkost@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Hu Tao <hutao@cn.fujitsu.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com> Signed-off-by: Andre Przywara <andre.przywara@amd.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> MST: comment tweaks
2014-06-05softmmu: move all load/store functions to cpu_ldst.hPaolo Bonzini
Unify pieces of cpu-all.h, exec-all.h, softmmu_exec.h and tcg/tcg.h into a single new header file with all helpers. Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-05-13cpu: make CPU_INTERRUPT_RESET available on all targetsPaolo Bonzini
On the x86, some devices need access to the CPU reset pin (INIT#). Provide a generic service to do this, using one of the internal cpu_interrupt targets. Generalize the PPC-specific code for CPU_INTERRUPT_RESET to other targets. Since PPC does not support migration across QEMU versions (its machine types are not versioned yet), I picked the value that is used on x86, CPU_INTERRUPT_TGT_INT_1. Consequently, TGT_INT_2 and TGT_INT_3 are shifted down by one while keeping their value. Reviewed-by: Anthony Liguori <aliguori@us.ibm.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-03-13exec: Change cpu_abort() argument to CPUStateAndreas Färber
Signed-off-by: Andreas Färber <afaerber@suse.de>
2014-03-13exec: Change cpu_breakpoint_{insert,remove{,_by_ref,_all}} argumentAndreas Färber
Use CPUState. Allows to clean up CPUArchState in gdbstub. Signed-off-by: Andreas Färber <afaerber@suse.de>
2014-03-13exec: Change cpu_watchpoint_{insert,remove{,_by_ref,_all}} argumentAndreas Färber
Use CPUState. This lets us drop a few local env usages. Signed-off-by: Andreas Färber <afaerber@suse.de>
2014-01-13memory: split dirty bitmap into threeJuan Quintela
After all the previous patches, spliting the bitmap gets direct. Note: For some reason, I have to move DIRTY_MEMORY_* definitions to the beginning of memory.h to make compilation work. Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Orit Wasserman <owasserm@redhat.com>
2013-09-12exec: Reduce ifdeffery around -mem-pathMarkus Armbruster
Instead of spreading its ifdeffery everywhere, confine it to qemu_ram_alloc_from_ptr(). Everywhere else, simply test block->fd, which is non-negative exactly when block uses -mem-path. Signed-off-by: Markus Armbruster <armbru@redhat.com> Acked-by: Laszlo Ersek <lersek@redhat.com> Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Message-id: 1375276272-15988-4-git-send-email-armbru@redhat.com Signed-off-by: Anthony Liguori <anthony@codemonkey.ws>
2013-07-25Merge remote-tracking branch 'riku/linux-user-for-upstream' into stagingAnthony Liguori
* 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 Graf
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>
2013-07-23exec: Change cpu_memory_rw_debug() argument to CPUStateAndreas Färber
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 Färber
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>
2013-07-23cpu: Change cpu_single_step() argument to CPUStateAndreas Färber
Use CPUState::env_ptr for now. Needed for GdbState::c_cpu. Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-10Merge remote-tracking branch 'afaerber/tags/qom-cpu-for-anthony' into stagingAnthony Liguori
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 Färber
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 Färber
Move it to qom/cpu.h. Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-09exec: Remove unused global variable phys_ram_fdStefan Weil
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>
2013-06-28cpu: 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>
2013-03-12cpu: 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>
2013-01-15exec: Return CPUState from qemu_get_cpu()Andreas Färber
Move the declaration to qemu/cpu.h and add documentation. The implementation still depends on CPUArchState for CPU iteration. Signed-off-by: Andreas Färber <afaerber@suse.de>
2012-12-20protect the ramlist with a separate mutexUmesh Deshpande
Add the new mutex that protects shared state between ram_save_live and the iothread. If the iothread mutex has to be taken together with the ramlist mutex, the iothread shall always be _outside_. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Umesh Deshpande <udeshpan@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Orit Wasserman <owasserm@redhat.com>
2012-12-20add a version number to ram_listUmesh Deshpande
This will be used to detect if last_block might have become invalid across different calls to ram_save_live. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Umesh Deshpande <udeshpan@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Orit Wasserman <owasserm@redhat.com>
2012-12-20exec: change RAM list to a TAILQPaolo Bonzini
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
2012-12-20exec: change ramlist from MRU order to a 1-item cachePaolo Bonzini
Most of the time, only 2 items will be active (from/to for a string operation, or code/data). But TCG guests likely won't have gigabytes of memory, so this actually goes down to 1 item. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
2012-12-19misc: move include files to include/qemu/Paolo Bonzini
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2012-12-19exec: move include files to include/exec/Paolo Bonzini
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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