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* gdbstub: Do not use memset() on GByteArrayPhilippe Mathieu-Daudé2020-04-151-0/+9
| | | | | | | | | | | Introduce gdb_get_zeroes() to fill a GByteArray with zeroes. Fixes: a010bdbe719 ("extend GByteArray to read register helpers") Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-Id: <20200414102427.7459-1-philmd@redhat.com> [AJB: used slightly more gliby set_size approach] Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <20200414200631.12799-13-alex.bennee@linaro.org>
* memory: Do not allow direct write access to rom_device regionsAlexander Duyck2020-04-131-2/+2
| | | | | | | | | | | | | | | According to the documentation in memory.h a ROM memory region will be backed by RAM for reads, but is supposed to go through a callback for writes. Currently we were not checking for the existence of the rom_device flag when determining if we could perform a direct write or not. To correct that add a check to memory_region_is_direct so that if the memory region has the rom_device flag set we will return false for all checks where is_write is set. Signed-off-by: Alexander Duyck <alexander.h.duyck@linux.intel.com> Message-Id: <20200410034150.24738.98143.stgit@localhost.localdomain> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* Add rx-softmmuYoshinori Sato2020-03-191-0/+1
| | | | | | | | | | | | | Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> [PMD: Squashed patches from Richard Henderson modifying qapi/common.json and tests/machine-none-test.c] Message-Id: <20200224141923.82118-21-ysato@users.sourceforge.jp> [PMD: Added @since 5.0 tag in SysEmuTarget] Acked-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
* gdbstub: extend GByteArray to read register helpersAlex Bennée2020-03-171-18/+41
| | | | | | | | | | | | | | | Instead of passing a pointer to memory now just extend the GByteArray to all the read register helpers. They can then safely append their data through the normal way. We don't bother with this abstraction for write registers as we have already ensured the buffer being copied from is the correct size. Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Acked-by: David Gibson <david@gibson.dropbear.id.au> Reviewed-by: Damien Hedde <damien.hedde@greensocs.com> Message-Id: <20200316172155.971-15-alex.bennee@linaro.org>
* gdbstub: add helper for 128 bit registersAlex Bennée2020-03-171-0/+13
| | | | | | | Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20200316172155.971-11-alex.bennee@linaro.org>
* Let cpu_[physical]_memory() calls pass a boolean 'is_write' argumentPhilippe Mathieu-Daudé2020-02-201-2/+2
| | | | | | | | | Use an explicit boolean type. This commit was produced with the included Coccinelle script scripts/coccinelle/exec_rw_const. Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
* exec: Let cpu_[physical]_memory API use a boolean 'is_write' argumentPhilippe Mathieu-Daudé2020-02-202-4/+4
| | | | | | | The 'is_write' argument is either 0 or 1. Convert it to a boolean type. Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
* exec: Let address_space_unmap() use a boolean 'is_write' argumentPhilippe Mathieu-Daudé2020-02-201-1/+1
| | | | | | | The 'is_write' argument is either 0 or 1. Convert it to a boolean type. Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
* exec: Let the cpu_[physical]_memory API use void pointer argumentsPhilippe Mathieu-Daudé2020-02-202-2/+2
| | | | | | | As we are only dealing with a blob buffer, use a void pointer argument. This will let us simplify other APIs. Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
* exec: Let the address_space API use void pointer argumentsPhilippe Mathieu-Daudé2020-02-201-6/+6
| | | | | | | As we are only dealing with a blob buffer, use a void pointer argument. This will let us simplify other APIs. Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
* exec: Let flatview API take void pointer argumentsPhilippe Mathieu-Daudé2020-02-201-1/+1
| | | | | | | | | Only flatview_[read/write]_continue use a byte pointer to increment an offset. For the users, we are only dealing with a blob buffer. Use a void pointer argument. This will let us simplify the address_space API in the next commit. Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
* tcg: Add support for a helper with 7 argumentsTaylor Simpson2020-02-124-0/+28
| | | | | | | | | | Currently, helpers can only take up to 6 arguments. This patch adds the capability for up to 7 arguments. I have tested it with the Hexagon port that I am preparing for submission. Signed-off-by: Taylor Simpson <tsimpson@quicinc.com> Message-Id: <1580942510-2820-1-git-send-email-tsimpson@quicinc.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
* ram_addr: Split RAMBlock definitionJuan Quintela2020-01-292-39/+65
| | | | | | | We need some of the fields without having to poison everything else. Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
* cputlb: Make tlb_n_entries private to cputlb.cRichard Henderson2020-01-221-5/+0Star
| | | | | | | | | | There are no users of this function outside cputlb.c, and its interface will change in the next patch. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
* tcg: Search includes from the project root source directoryPhilippe Mathieu-Daudé2020-01-161-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We currently search both the root and the tcg/ directories for tcg files: $ git grep '#include "tcg/' | wc -l 28 $ git grep '#include "tcg[^/]' | wc -l 94 To simplify the preprocessor search path, unify by expliciting the tcg/ directory. Patch created mechanically by running: $ for x in \ tcg.h tcg-mo.h tcg-op.h tcg-opc.h \ tcg-op-gvec.h tcg-gvec-desc.h; do \ sed -i "s,#include \"$x\",#include \"tcg/$x\"," \ $(git grep -l "#include \"$x\""); \ done Acked-by: David Gibson <david@gibson.dropbear.id.au> (ppc parts) Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Reviewed-by: Stefan Weil <sw@weilnetz.de> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-Id: <20200101112303.20724-2-philmd@redhat.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
* cputlb: Expand cpu_ldst_template.h in cputlb.cRichard Henderson2020-01-162-160/+24Star
| | | | | | | | | | | Reduce the amount of preprocessor obfuscation by expanding the text of each of the functions generated. The result is only slightly smaller than the original. Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Aleksandar Markovic <amarkovic@wavecomp.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
* cputlb: Remove support for MMU_MODE*_SUFFIXRichard Henderson2020-01-161-230/+0Star
| | | | | | | | All users have now been converted to cpu_*_mmuidx_ra. Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
* cputlb: Expand cpu_ldst_useronly_template.h in user-exec.cRichard Henderson2020-01-162-190/+29Star
| | | | | | | | | | With the tracing hooks, the inline functions are no longer so simple. Reduce the amount of preprocessor obfuscation by expanding the text of each of the functions generated. Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
* cputlb: Provide cpu_(ld,st}*_mmuidx_ra for user-onlyRichard Henderson2020-01-161-5/+75
| | | | | | | | | | This finishes the new interface began with the previous patch. Document the interface and deprecate MMU_MODE<N>_SUFFIX. Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: Aleksandar Markovic <amarkovic@wavecomp.com> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
* cputlb: Rename helper_ret_ld*_cmmu to cpu_ld*_codeRichard Henderson2020-01-162-38/+12Star
| | | | | | | | | | | | | There are no uses of the *_cmmu names other than the bare wrapping within the *_code inlines. Therefore rename the functions so we can drop the inlines. Use abi_ptr instead of target_ulong in preparation for user-only; the two types are identical for softmmu. Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: Aleksandar Markovic <amarkovic@wavecomp.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
* translator: Use cpu_ld*_code instead of open-codingRichard Henderson2020-01-162-46/+13Star
| | | | | | | | | The DO_LOAD macros replicate the distinction already performed by the cpu_ldst.h functions. Use them. Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
* cputlb: Move body of cpu_ldst_template.h out of lineRichard Henderson2020-01-162-100/+50Star
| | | | | | | | | | | | | | | | | | | With the tracing hooks, the inline functions are no longer so simple. Once out-of-line, the current tlb_entry lookup is redundant with the one in the main load/store_helper. This also begins the introduction of a new target facing interface, with suffix *_mmuidx_ra. This is not yet official because the interface is not done for user-only. Use abi_ptr instead of target_ulong in preparation for user-only; the two types are identical for softmmu. What remains in cpu_ldst_template.h are the expansions for _code, _data, and MMU_MODE<N>_SUFFIX. Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
* cputlb: Use trace_mem_get_info instead of trace_mem_build_infoRichard Henderson2020-01-162-17/+17
| | | | | | | | | | | In the cpu_ldst templates, we already require a MemOp, and it is cleaner and clearer to pass that instead of 3 separate arguments describing the memory operation. Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
* Merge remote-tracking branch ↵Peter Maydell2019-12-201-5/+29
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 'remotes/stsquad/tags/pull-tesing-and-misc-191219-1' into staging Various testing and logging updates - test tci with Travis - enable multiarch testing in Travis - default to out-of-tree builds - make changing logfile safe via RCU - remove redundant tests - remove gtester test from docker - convert DEBUG_MMAP to tracepoints - remove hand rolled glob function - trigger tcg re-configure when needed # gpg: Signature made Thu 19 Dec 2019 08:24:08 GMT # gpg: using RSA key 6685AE99E75167BCAFC8DF35FBD0DB095A9E2A44 # gpg: Good signature from "Alex Bennée (Master Work Key) <alex.bennee@linaro.org>" [full] # Primary key fingerprint: 6685 AE99 E751 67BC AFC8 DF35 FBD0 DB09 5A9E 2A44 * remotes/stsquad/tags/pull-tesing-and-misc-191219-1: (25 commits) tests/tcg: ensure we re-configure if configure.sh is updated trace: replace hand-crafted pattern_glob with g_pattern_match_simple linux-user: convert target_munmap debug to a tracepoint linux-user: log page table changes under -d page linux-user: add target_mmap_complete tracepoint linux-user: convert target_mmap debug to tracepoint linux-user: convert target_mprotect debug to tracepoint travis.yml: Remove the redundant clang-with-MAIN_SOFTMMU_TARGETS entry docker: gtester is no longer used Added tests for close and change of logfile. Add use of RCU for qemu_logfile. qemu_log_lock/unlock now preserves the qemu_logfile handle. Add a mutex to guarantee single writer to qemu_logfile handle. Cleaned up flow of code in qemu_set_log(), to simplify and clarify. Fix double free issue in qemu_set_log_filename(). ci: build out-of-tree travis.yml: Enable builds on arm64, ppc64le and s390x tests/test-util-filemonitor: Skip test on non-x86 Travis containers tests/hd-geo-test: Skip test when images can not be created iotests: Skip test 079 if it is not possible to create large files ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
| * linux-user: log page table changes under -d pageAlex Bennée2019-12-191-6/+5Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | The CPU_LOG_PAGE flag is woefully underused and could stand to do extra duty tracking page changes. If the user doesn't want to see the details as things change they still have the tracepoints available. We push the locking into log_page_dump and pass a reason for the banner text. Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20191205122518.10010-5-alex.bennee@linaro.org>
| * Add use of RCU for qemu_logfile.Robert Foley2019-12-181-4/+29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This now allows changing the logfile while logging is active, and also solves the issue of a seg fault while changing the logfile. Any read access to the qemu_logfile handle will use the rcu_read_lock()/unlock() around the use of the handle. To fetch the handle we will use atomic_rcu_read(). We also in many cases do a check for validity of the logfile handle before using it to deal with the case where the file is closed and set to NULL. The cases where we write to the qemu_logfile will use atomic_rcu_set(). Writers will also use call_rcu() with a newly added qemu_logfile_free function for freeing/closing when readers have finished. Signed-off-by: Robert Foley <robert.foley@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <20191118211528.3221-6-robert.foley@linaro.org>
* | memory: include MemoryListener documentation and some missing function ↵Paolo Bonzini2019-12-181-4/+214
| | | | | | | | | | | | | | | | | | | | parameters These cover the remaining warnings from kernel-doc. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Message-Id: <20191029162248.13383-7-pbonzini@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* | memory.h: Silence kernel-doc complaintsPaolo Bonzini2019-12-171-6/+10
| | | | | | | | | | | | | | Fix a few instances where kernel-doc complains about doc comments in memory.h. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* | memory: use RCU_READ_LOCK_GUARDPaolo Bonzini2019-12-171-2/+1Star
|/ | | | | Cc: Dr. David Alan Gilbert <dgilbert@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* Memory: Enable writeback for given memory regionBeata Michalska2019-12-162-0/+14
| | | | | | | | | | | Add an option to trigger memory writeback to sync given memory region with the corresponding backing store, case one is available. This extends the support for persistent memory, allowing syncing on-demand. Signed-off-by: Beata Michalska <beata.michalska@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20191121000843.24844-3-beata.michalska@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
* tcg: cputlb: Add probe_readBeata Michalska2019-12-161-0/+6
| | | | | | | | | | Add probe_read alongside the write probing equivalent. Signed-off-by: Beata Michalska <beata.michalska@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20191121000843.24844-2-beata.michalska@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
* Merge remote-tracking branch ↵Peter Maydell2019-10-3010-37/+244
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 'remotes/stsquad/tags/pull-tcg-plugins-281019-4' into staging TCG Plugins initial implementation - use --enable-plugins @ configure - low impact introspection (-plugin empty.so to measure overhead) - plugins cannot alter guest state - example plugins included in source tree (tests/plugins) - -d plugin to enable plugin output in logs - check-tcg runs extra tests when plugins enabled - documentation in docs/devel/plugins.rst # gpg: Signature made Mon 28 Oct 2019 15:13:23 GMT # gpg: using RSA key 6685AE99E75167BCAFC8DF35FBD0DB095A9E2A44 # gpg: Good signature from "Alex Bennée (Master Work Key) <alex.bennee@linaro.org>" [full] # Primary key fingerprint: 6685 AE99 E751 67BC AFC8 DF35 FBD0 DB09 5A9E 2A44 * remotes/stsquad/tags/pull-tcg-plugins-281019-4: (57 commits) travis.yml: enable linux-gcc-debug-tcg cache MAINTAINERS: add me for the TCG plugins code scripts/checkpatch.pl: don't complain about (foo, /* empty */) .travis.yml: add --enable-plugins tests include/exec: wrap cpu_ldst.h in CONFIG_TCG accel/stubs: reduce headers from tcg-stub tests/plugin: add hotpages to analyse memory access patterns tests/plugin: add instruction execution breakdown tests/plugin: add a hotblocks plugin tests/tcg: enable plugin testing tests/tcg: drop test-i386-fprem from TESTS when not SLOW tests/tcg: move "virtual" tests to EXTRA_TESTS tests/tcg: set QEMU_OPTS for all cris runs tests/tcg/Makefile.target: fix path to config-host.mak tests/plugin: add sample plugins linux-user: support -plugin option vl: support -plugin option plugin: add qemu_plugin_outs helper plugin: add qemu_plugin_insn_disas helper plugin: expand the plugin_init function to include an info block ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
| * include/exec: wrap cpu_ldst.h in CONFIG_TCGAlex Bennée2019-10-281-0/+2
| | | | | | | | | | | | | | This gets around a build problem with --disable-tcg. Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
| * translator: add translator_ld{ub,sw,uw,l,q}Emilio G. Cota2019-10-282-1/+72
| | | | | | | | | | | | | | | | | | | | | | | | | | We don't bother with replicating the fast path (tlb_hit) of the old cpu_ldst helpers as it has no measurable effect on performance. This probably indicates we should consider flattening the whole set of helpers but that is out of scope for this change. Suggested-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Emilio G. Cota <cota@braap.org> [AJB: directly plumb into softmmu/user helpers] Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
| * cputlb: ensure _cmmu helper functions follow the naming standardAlex Bennée2019-10-281-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | We document this in docs/devel/load-stores.rst so lets follow it. The 32 bit and 64 bit access functions have historically not included the sign so we leave those as is. We also introduce some signed helpers which are used for loading immediate values in the translator. Fixes: 282dffc8 Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <20191021150910.23216-1-alex.bennee@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
| * plugin-gen: add plugin_insn_appendEmilio G. Cota2019-10-281-0/+14
| | | | | | | | | | | | | | | | | | | | By adding it to plugin-gen's header file, we can export is as an inline, since tcg.h is included in the header (we need tcg_ctx). Signed-off-by: Emilio G. Cota <cota@braap.org> [AJB: use g_byte_array] Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
| * tcg: let plugins instrument virtual memory accessesEmilio G. Cota2019-10-283-27/+34
| | | | | | | | | | | | | | | | | | | | | | | | To capture all memory accesses we need hook into all the various helper functions that are involved in memory operations as well as the injected inline helper calls. A later commit will allow us to resolve the actual guest HW addresses by replaying the lookup. Signed-off-by: Emilio G. Cota <cota@braap.org> [AJB: drop haddr handling, just deal in vaddr] Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
| * plugin-gen: add module for TCG-related codeEmilio G. Cota2019-10-284-0/+60
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We first inject empty instrumentation from translator_loop. After translation, we go through the plugins to see what they want to register for, filling in the empty instrumentation. If if turns out that some instrumentation remains unused, we remove it. This approach supports the following features: - Inlining TCG code for simple operations. Note that we do not export TCG ops to plugins. Instead, we give them a C API to insert inlined ops. So far we only support adding an immediate to a u64, e.g. to count events. - "Direct" callbacks. These are callbacks that do not go via a helper. Instead, the helper is defined at run-time, so that the plugin code is directly called from TCG. This makes direct callbacks as efficient as possible; they are therefore used for very frequent events, e.g. memory callbacks. - Passing the host address to memory callbacks. Most of this is implemented in a later patch though. - Instrumentation of memory accesses performed from helpers. See the corresponding comment, as well as a later patch. Signed-off-by: Emilio G. Cota <cota@braap.org> [AJB: add alloc_tcg_plugin_context, use glib, rm hwaddr] Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
| * cputlb: introduce get_page_addr_code_hostpEmilio G. Cota2019-10-281-0/+38
| | | | | | | | | | | | | | | | | | This will be used by plugins to get the host address of instructions. Signed-off-by: Emilio G. Cota <cota@braap.org> Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
| * cputlb: document get_page_addr_codeEmilio G. Cota2019-10-281-3/+21
| | | | | | | | | | | | | | Suggested-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Emilio G. Cota <cota@braap.org> Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
| * trace: add mmu_index to mem_infoAlex Bennée2019-10-282-12/+9Star
| | | | | | | | | | | | | | We are going to re-use mem_info later for plugins and will need to track the mmu_idx for softmmu code. Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
* | Merge remote-tracking branch 'remotes/rth/tags/pull-tcg-20191028' into stagingPeter Maydell2019-10-292-12/+25
|\ \ | |/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Improvements for TARGET_PAGE_BITS_VARY Fix for TCI ld16u_i64. Fix for segv on icount execute from i/o memory. Two misc cleanups. # gpg: Signature made Mon 28 Oct 2019 14:55:08 GMT # gpg: using RSA key 7A481E78868B4DB6A85A05C064DF38E8AF7E215F # gpg: issuer "richard.henderson@linaro.org" # gpg: Good signature from "Richard Henderson <richard.henderson@linaro.org>" [full] # Primary key fingerprint: 7A48 1E78 868B 4DB6 A85A 05C0 64DF 38E8 AF7E 215F * remotes/rth/tags/pull-tcg-20191028: translate-all: Remove tb_alloc translate-all: fix uninitialized tb->orig_tb cputlb: Fix tlb_vaddr_to_host exec: Cache TARGET_PAGE_MASK for TARGET_PAGE_BITS_VARY exec: Promote TARGET_PAGE_MASK to target_long exec: Restrict TARGET_PAGE_BITS_VARY assert to CONFIG_DEBUG_TCG exec: Use const alias for TARGET_PAGE_BITS_VARY configure: Detect compiler support for __attribute__((alias)) exec: Split out variable page size support to exec-vary.c cpu: use ROUND_UP() to define xxx_PAGE_ALIGN cputlb: ensure _cmmu helper functions follow the naming standard tci: Add implementation for INDEX_op_ld16u_i64 Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
| * exec: Cache TARGET_PAGE_MASK for TARGET_PAGE_BITS_VARYRichard Henderson2019-10-281-2/+6
| | | | | | | | | | | | | | | | | | | | | | | | This eliminates a set of runtime shifts. It turns out that we require TARGET_PAGE_MASK more often than TARGET_PAGE_SIZE, so redefine TARGET_PAGE_SIZE based on TARGET_PAGE_MASK instead of the other way around. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: David Hildenbrand <david@redhat.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
| * exec: Promote TARGET_PAGE_MASK to target_longRichard Henderson2019-10-281-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | There are some uint64_t uses that expect TARGET_PAGE_MASK to extend for a 32-bit, so this must continue to be a signed type. Define based on TARGET_PAGE_BITS not TARGET_PAGE_SIZE; this will make a following patch more clear. This should not have a functional effect so far. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
| * exec: Restrict TARGET_PAGE_BITS_VARY assert to CONFIG_DEBUG_TCGRichard Henderson2019-10-281-0/+4
| | | | | | | | | | | | | | | | | | | | This reduces the size of a release build by about 10k. Noticably, within the tlb miss helpers. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
| * exec: Use const alias for TARGET_PAGE_BITS_VARYRichard Henderson2019-10-281-4/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Using a variable that is declared "const" for this tells the compiler that it may read the value once and assume that it does not change across function calls. For target_page_size, this means we have only one assert per function, and one read of the variable. This reduces the size of qemu-system-aarch64 by 8k. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
| * cpu: use ROUND_UP() to define xxx_PAGE_ALIGNWei Yang2019-10-281-4/+3Star
| | | | | | | | | | | | | | | | | | | | | | | | Use ROUND_UP() to define, which is a little bit easy to read. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: David Gibson <david@gibson.dropbear.id.au> Reviewed-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Wei Yang <richardw.yang@linux.intel.com> Message-Id: <20191013021145.16011-2-richardw.yang@linux.intel.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
| * cputlb: ensure _cmmu helper functions follow the naming standardAlex Bennée2019-10-281-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | We document this in docs/devel/load-stores.rst so lets follow it. The 32 bit and 64 bit access functions have historically not included the sign so we leave those as is. We also introduce some signed helpers which are used for loading immediate values in the translator. Fixes: 282dffc8 Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <20191021150910.23216-1-alex.bennee@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
* | core: replace getpagesize() with qemu_real_host_page_sizeWei Yang2019-10-261-1/+1
|/ | | | | | | | | | | | | | | | | | | | | There are three page size in qemu: real host page size host page size target page size All of them have dedicate variable to represent. For the last two, we use the same form in the whole qemu project, while for the first one we use two forms: qemu_real_host_page_size and getpagesize(). qemu_real_host_page_size is defined to be a replacement of getpagesize(), so let it serve the role. [Note] Not fully tested for some arch or device. Signed-off-by: Wei Yang <richardw.yang@linux.intel.com> Message-Id: <20191013021145.16011-3-richardw.yang@linux.intel.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* Merge remote-tracking branch ↵Peter Maydell2019-10-141-73/+65Star
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 'remotes/dgilbert/tags/pull-migration-20191011a' into staging Migration pull 2019-10-11 Mostly cleanups and minor fixes [Note I'm seeing a hang on the aarch64 hosted x86-64 tcg migration test in xbzrle; but I'm seeing that on current head as well] # gpg: Signature made Fri 11 Oct 2019 20:14:31 BST # gpg: using RSA key 45F5C71B4A0CB7FB977A9FA90516331EBC5BFDE7 # gpg: Good signature from "Dr. David Alan Gilbert (RH2) <dgilbert@redhat.com>" [full] # Primary key fingerprint: 45F5 C71B 4A0C B7FB 977A 9FA9 0516 331E BC5B FDE7 * remotes/dgilbert/tags/pull-migration-20191011a: (21 commits) migration: Support gtree migration migration/multifd: pages->used would be cleared when attach to multifd_send_state migration/multifd: initialize packet->magic/version once at setup stage migration/multifd: use pages->allocated instead of the static max migration/multifd: fix a typo in comment of multifd_recv_unfill_packet() migration/postcopy: check PostcopyState before setting to POSTCOPY_INCOMING_RUNNING migration/postcopy: rename postcopy_ram_enable_notify to postcopy_ram_incoming_setup migration/postcopy: postpone setting PostcopyState to END migration/postcopy: mis->have_listen_thread check will never be touched migration: report SaveStateEntry id and name on failure migration: pass in_postcopy instead of check state again migration/postcopy: fix typo in mark_postcopy_blocktime_begin's comment migration/postcopy: map large zero page in postcopy_ram_incoming_setup() migration/postcopy: allocate tmp_page in setup stage migration: Don't try and recover return path in non-postcopy rcu: Use automatic rc_read unlock in core memory/exec code migration: Use automatic rcu_read unlock in rdma.c migration: Use automatic rcu_read unlock in ram.c migration: Fix missing rcu_read_unlock rcu: Add automatically released rcu_read_lock variants ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>