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* | Merge remote-tracking branch 'remotes/rth/tags/pull-tcg-20201008' into stagingPeter Maydell2020-10-082-26/+32
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Extend maximum gvec vector size Fix i386 avx2 dupi Fix mips host user-only write detection Misc cleanups. # gpg: Signature made Thu 08 Oct 2020 13:55:22 BST # 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-20201008: accel/tcg: Fix computing of is_write for MIPS tcg: Remove TCG_TARGET_HAS_cmp_vec tcg/optimize: Fold dup2_vec tcg: Fix generation of dupi_vec for 32-bit host tcg/i386: Fix dupi for avx2 32-bit hosts tcg: Remove TCGOpDef.used tcg: Move some TCG_CT_* bits to TCGArgConstraint bitfields tcg: Remove TCG_CT_REG tcg: Move sorted_args into TCGArgConstraint.sort_index tcg: Drop union from TCGArgConstraint tcg: Adjust simd_desc size encoding Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
| * | tcg: Remove TCGOpDef.usedRichard Henderson2020-10-081-3/+0Star
| | | | | | | | | | | | | | | | | | | | | The last user of this field disappeared in f69d277ece4. Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
| * | tcg: Move some TCG_CT_* bits to TCGArgConstraint bitfieldsRichard Henderson2020-10-081-7/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | These are easier to set and test when they have their own fields. Reduce the size of alias_index and sort_index to 4 bits, which is sufficient for TCG_MAX_OP_ARGS. This leaves only the bits indicating constants within the ct field. Move all initialization to allocation time, rather than init individual fields in process_op_defs. Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
| * | tcg: Remove TCG_CT_REGRichard Henderson2020-10-081-1/+0Star
| | | | | | | | | | | | | | | | | | | | | | | | This wasn't actually used for anything, really. All variable operands must accept registers, and which are indicated by the set in TCGArgConstraint.regs. Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
| * | tcg: Move sorted_args into TCGArgConstraint.sort_indexRichard Henderson2020-10-081-1/+1
| | | | | | | | | | | | | | | | | | | | | This uses an existing hole in the TCGArgConstraint structure and will be convenient for keeping the data in one place. Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
| * | tcg: Drop union from TCGArgConstraintRichard Henderson2020-10-081-3/+1Star
| | | | | | | | | | | | | | | | | | | | | | | | The union is unused; let "regs" appear in the main structure without the "u.regs" wrapping. Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
| * | tcg: Adjust simd_desc size encodingRichard Henderson2020-10-081-12/+24
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | With larger vector sizes, it turns out oprsz == maxsz, and we only need to represent mismatch for oprsz <= 32. We do, however, need to represent larger oprsz and do so without reducing SIMD_DATA_BITS. Reduce the size of the oprsz field and increase the maxsz field. Steal the oprsz value of 24 to indicate equality with maxsz. Tested-by: Frank Chang <frank.chang@sifive.com> Reviewed-by: Frank Chang <frank.chang@sifive.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
* | Merge remote-tracking branch ↵Peter Maydell2020-10-083-22/+23
|\ \ | |/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 'remotes/ehabkost/tags/machine-next-pull-request' into staging machine + QOM queue, 2020-10-06 * QOM documentation fixes and cleanups (Eduardo Habkost) * user-mode: Prune build dependencies (Philippe Mathieu-Daudé) * qom: Improve error message (Philippe Mathieu-Daudé) * numa: hmat: require parent cache description before the next level one (Igor Mammedov) # gpg: Signature made Tue 06 Oct 2020 23:09:03 BST # gpg: using RSA key 5A322FD5ABC4D3DBACCFD1AA2807936F984DC5A6 # gpg: issuer "ehabkost@redhat.com" # gpg: Good signature from "Eduardo Habkost <ehabkost@redhat.com>" [full] # Primary key fingerprint: 5A32 2FD5 ABC4 D3DB ACCF D1AA 2807 936F 984D C5A6 * remotes/ehabkost/tags/machine-next-pull-request: (21 commits) numa: hmat: require parent cache description before the next level one kernel-doc: Remove $decl_type='type name' hack memory: Explicitly tag doc comments for structs qom: Explicitly tag doc comments for typedefs and structs kernel-doc: Handle function typedefs without asterisks kernel-doc: Handle function typedefs that return pointers docs/devel/qom: Avoid long lines docs/devel/qom: Remove usage of <code> docs/devel/qom: Use *emphasis* for emphasis docs/devel/qom: Fix indentation of code blocks docs/devel/qom: Fix indentation of bulleted list qom: Fix DECLARE_*CHECKER documentation qom: Improve error message displayed with missing object properties hw/core/cpu: Add missing 'exec/cpu-common.h' include hw/core/qdev-properties: Extract system-mode specific properties hw/core/qdev-properties: Export some integer-related functions hw/core/qdev-properties: Export qdev_prop_enum hw/core/qdev-properties: Export enum-related functions hw/core/qdev-properties: Fix code style hw/core/qdev-properties: Use qemu_strtoul() in set_pci_host_devaddr() ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
| * memory: Explicitly tag doc comments for structsEduardo Habkost2020-10-061-3/+3
| | | | | | | | | | | | | | | | | | | | This will allow us to remove the QEMU-specific $decl_type='type name' hack from the kernel-doc script. Signed-off-by: Eduardo Habkost <ehabkost@redhat.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Message-Id: <20201003024123.193840-5-ehabkost@redhat.com> Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
| * qom: Explicitly tag doc comments for typedefs and structsEduardo Habkost2020-10-061-11/+11
| | | | | | | | | | | | | | | | | | | | | | If we explicitly indicate we are documenting a typedef or a struct, we'll be able to remove the $decl_type='type name' hack from kernel-doc. Signed-off-by: Eduardo Habkost <ehabkost@redhat.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Message-Id: <20201003024123.193840-4-ehabkost@redhat.com> Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
| * docs/devel/qom: Remove usage of <code>Eduardo Habkost2020-10-061-6/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | <code> is not valid reST syntax. Function @argument references don't need additional markup, so just remove <code></code>. Constants were changed to use reST ``code`` syntax Signed-off-by: Eduardo Habkost <ehabkost@redhat.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Message-Id: <20201003025424.199291-6-ehabkost@redhat.com> Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
| * qom: Fix DECLARE_*CHECKER documentationEduardo Habkost2020-10-061-2/+2
| | | | | | | | | | | | | | | | | | | | | | Correct copy/paste mistake in the DECLARE_INSTANCE_CHECKER and DECLARE_CLASS_CHECKERS documentation. Signed-off-by: Eduardo Habkost <ehabkost@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Message-Id: <20201003025424.199291-2-ehabkost@redhat.com> Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
| * hw/core/qdev-properties: Export qdev_prop_enumPhilippe Mathieu-Daudé2020-10-061-0/+1
| | | | | | | | | | | | | | Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20200930164949.1425294-7-philmd@redhat.com> Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
* | Merge remote-tracking branch 'remotes/bonzini-gitlab/tags/for-upstream' into ↵Peter Maydell2020-10-0615-166/+177
|\ \ | |/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | staging * Reverse debugging (Pavel) * CFLAGS cleanup (Paolo) * ASLR fix (Mark) * cpus.c refactoring (Claudio) # gpg: Signature made Tue 06 Oct 2020 07:35:09 BST # gpg: using RSA key F13338574B662389866C7682BFFBD25F78C7AE83 # gpg: issuer "pbonzini@redhat.com" # gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" [full] # gpg: aka "Paolo Bonzini <pbonzini@redhat.com>" [full] # Primary key fingerprint: 46F5 9FBD 57D6 12E7 BFD4 E2F7 7E15 100C CD36 69B1 # Subkey fingerprint: F133 3857 4B66 2389 866C 7682 BFFB D25F 78C7 AE83 * remotes/bonzini-gitlab/tags/for-upstream: (37 commits) tests/acceptance: add reverse debugging test replay: create temporary snapshot at debugger connection replay: describe reverse debugging in docs/replay.txt gdbstub: add reverse continue support in replay mode gdbstub: add reverse step support in replay mode replay: flush rr queue before loading the vmstate replay: implement replay-seek command replay: introduce breakpoint at the specified step replay: introduce info hmp/qmp command qapi: introduce replay.json for record/replay-related stuff migration: introduce icount field for snapshots qcow2: introduce icount field for snapshots replay: provide an accessor for rr filename replay: don't record interrupt poll configure: don't enable ASLR for --enable-debug Windows builds configure: consistently pass CFLAGS/CXXFLAGS/LDFLAGS to meson configure: do not clobber environment CFLAGS/CXXFLAGS/LDFLAGS dtc: Convert Makefile bits to meson bits slirp: Convert Makefile bits to meson bits accel/tcg: use current_machine as it is always set for softmmu ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
| * replay: create temporary snapshot at debugger connectionPavel Dovgalyuk2020-10-061-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When record/replay does not uses overlays for storing the snapshots, user is not capable of issuing reverse debugging commands. This patch adds creation of the VM snapshot on the temporary overlay image, when the debugger connects to QEMU. Therefore the execution can be rewind to the moment of the debugger connection while debugging the virtual machine. Signed-off-by: Pavel Dovgalyuk <Pavel.Dovgalyuk@ispras.ru> -- v6: - dropped unused error processing (suggested by Philippe Mathieu-Daudé) Message-Id: <160174524096.12451.11651270339216758643.stgit@pasha-ThinkPad-X280> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
| * gdbstub: add reverse continue support in replay modePavel Dovgalyuk2020-10-061-0/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds support of the reverse continue operation for gdbstub. Reverse continue finds the last breakpoint that would happen in normal execution from the beginning to the current moment. Implementation of the reverse continue replays the execution twice: to find the breakpoints that were hit and to seek to the last breakpoint. Reverse continue loads the previous snapshot and tries to find the breakpoint since that moment. If there are no such breakpoints, it proceeds to the earlier snapshot, and so on. When no breakpoints or watchpoints were hit at all, execution stops at the beginning of the replay log. Signed-off-by: Pavel Dovgalyuk <Pavel.Dovgalyuk@ispras.ru> Message-Id: <160174522930.12451.6994758004725016836.stgit@pasha-ThinkPad-X280> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
| * gdbstub: add reverse step support in replay modePavel Dovgalyuk2020-10-061-0/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | GDB remote protocol supports two reverse debugging commands: reverse step and reverse continue. This patch adds support of the first one to the gdbstub. Reverse step is intended to step one instruction in the backwards direction. This is not possible in regular execution. But replayed execution is deterministic, therefore we can load one of the prior snapshots and proceed to the desired step. It is equivalent to stepping one instruction back. There should be at least one snapshot preceding the debugged part of the replay log. Signed-off-by: Pavel Dovgalyuk <Pavel.Dovgalyuk@ispras.ru> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> -- v4 changes: - inverted condition in cpu_handle_guest_debug (suggested by Alex Bennée) Message-Id: <160174522341.12451.1498758422543765253.stgit@pasha-ThinkPad-X280> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
| * replay: flush rr queue before loading the vmstatePavel Dovgalyuk2020-10-061-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Non-empty record/replay queue prevents saving and loading the VM state, because it includes pending bottom halves and block coroutines. But when the new VM state is loaded, we don't have to preserve the consistency of the current state anymore. Therefore this patch just flushes the queue allowing the coroutines to finish and removes checking for empty rr queue for load_snapshot function. Signed-off-by: Pavel Dovgalyuk <Pavel.Dovgalyuk@ispras.ru> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <160174521762.12451.15752448887893855757.stgit@pasha-ThinkPad-X280> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
| * replay: implement replay-seek commandPavel Dovgalyuk2020-10-061-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds hmp/qmp commands replay_seek/replay-seek that proceed the execution to the specified instruction count. The command automatically loads nearest snapshot and replays the execution to find the desired instruction count. Signed-off-by: Pavel Dovgalyuk <Pavel.Dovgalyuk@ispras.ru> Acked-by: Markus Armbruster <armbru@redhat.com> -- v4 changes: - fixed HMP command description indent - removed useless error_free call Message-Id: <160174521180.12451.14033112911009278753.stgit@pasha-ThinkPad-X280> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
| * replay: introduce breakpoint at the specified stepPavel Dovgalyuk2020-10-061-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch introduces replay_break, replay_delete_break qmp and hmp commands. These commands allow stopping at the specified instruction. It may be useful for debugging when there are some known events that should be investigated. replay_break command has one argument - number of instructions executed since the start of the replay. replay_delete_break removes previously set breakpoint. Signed-off-by: Pavel Dovgalyuk <Pavel.Dovgalyuk@ispras.ru> Acked-by: Markus Armbruster <armbru@redhat.com> -- v4 changes: - removed useless error_free call Message-Id: <160174520606.12451.7056879546045599378.stgit@pasha-ThinkPad-X280> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
| * replay: introduce info hmp/qmp commandPavel Dovgalyuk2020-10-061-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch introduces 'info replay' monitor command and corresponding qmp request. These commands request the current record/replay mode, replay log file name, and the instruction count (number of recorded/replayed instructions). The instruction count can be used with the replay_seek/replay_break commands added in the next two patches. Signed-off-by: Pavel Dovgalyuk <Pavel.Dovgalyuk@ispras.ru> Acked-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Acked-by: Markus Armbruster <armbru@redhat.com> Message-Id: <160174520026.12451.13112161947433306561.stgit@pasha-ThinkPad-X280> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
| * qapi: introduce replay.json for record/replay-related stuffPavel Dovgalyuk2020-10-061-0/+1
| | | | | | | | | | | | | | | | | | | | | | This patch adds replay.json file. It will be used for adding record/replay-related data structures and commands. Signed-off-by: Pavel Dovgalyuk <pavel.dovgalyuk@ispras.ru> Reviewed-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <160174519444.12451.3472949430004845434.stgit@pasha-ThinkPad-X280> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
| * migration: introduce icount field for snapshotsPavel Dovgalyuk2020-10-061-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Saving icount as a parameters of the snapshot allows navigation between them in the execution replay scenario. This information can be used for finding a specific snapshot for proceeding the recorded execution to the specific moment of the time. E.g., 'reverse step' action (introduced in one of the following patches) needs to load the nearest snapshot which is prior to the current moment of time. This patch also updates snapshot test which verifies qemu monitor output. Signed-off-by: Pavel Dovgalyuk <Pavel.Dovgalyuk@ispras.ru> Acked-by: Markus Armbruster <armbru@redhat.com> Acked-by: Kevin Wolf <kwolf@redhat.com> -- v4 changes: - squashed format update with test output update v7 changes: - introduced the spaces between the fields in snapshot info output - updated the test to match new field widths Message-Id: <160174518865.12451.14327573383978752463.stgit@pasha-ThinkPad-X280> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
| * replay: provide an accessor for rr filenamePavel Dovgalyuk2020-10-061-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | This patch adds an accessor function for the name of the record/replay log file. Adding an accessor instead of making variable global, prevents accidental modification of this variable by other modules. Signed-off-by: Pavel Dovgalyuk <Pavel.Dovgalyuk@ispras.ru> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-Id: <160174517710.12451.17645787545733927488.stgit@pasha-ThinkPad-X280> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
| * kvm: remove kvm specific functions from global includesClaudio Fontana2020-10-051-7/+0Star
| | | | | | | | | | | | Signed-off-by: Claudio Fontana <cfontana@suse.de> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
| * hax: remove hax specific functions from global includesClaudio Fontana2020-10-051-17/+0Star
| | | | | | | | | | | | Signed-off-by: Claudio Fontana <cfontana@suse.de> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
| * whpx: remove whpx specific functions from global includesClaudio Fontana2020-10-051-19/+0Star
| | | | | | | | | | | | Signed-off-by: Claudio Fontana <cfontana@suse.de> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
| * hvf: remove hvf specific functions from global includesClaudio Fontana2020-10-051-8/+0Star
| | | | | | | | | | | | | | Signed-off-by: Claudio Fontana <cfontana@suse.de> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Roman Bolshakov <r.bolshakov@yadro.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
| * cpus: add handle_interrupt to the CpusAccel interfaceClaudio Fontana2020-10-052-14/+2Star
| | | | | | | | | | | | | | | | | | | | | | | | | | kvm: uses the generic handler qtest: uses the generic handler whpx: changed to use the generic handler (identical implementation) hax: changed to use the generic handler (identical implementation) hvf: changed to use the generic handler (identical implementation) tcg: adapt tcg-cpus to point to the tcg-specific handler Signed-off-by: Claudio Fontana <cfontana@suse.de> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
| * cpus: extract out kvm-specific code to accel/kvmClaudio Fontana2020-10-051-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | register a "CpusAccel" interface for KVM as well. Signed-off-by: Claudio Fontana <cfontana@suse.de> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com> [added const] Signed-off-by: Claudio Fontana <cfontana@suse.de> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
| * cpus: prepare new CpusAccel cpu accelerator interfaceClaudio Fontana2020-10-053-67/+47Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The new interface starts unused, will start being used by the next patches. It provides methods for each accelerator to start a vcpu, kick a vcpu, synchronize state, get cpu virtual clock and elapsed ticks. In qemu_wait_io_event, make it clear that APC is used only for HAX on Windows. Signed-off-by: Claudio Fontana <cfontana@suse.de> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
| * icount: rename functions to be consistent with the module nameClaudio Fontana2020-10-052-10/+10
| | | | | | | | | | | | | | Signed-off-by: Claudio Fontana <cfontana@suse.de> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
| * cpu-timers, icount: new modulesClaudio Fontana2020-10-056-35/+98
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | refactoring of cpus.c continues with cpu timer state extraction. cpu-timers: responsible for the softmmu cpu timers state, including cpu clocks and ticks. icount: counts the TCG instructions executed. As such it is specific to the TCG accelerator. Therefore, it is built only under CONFIG_TCG. One complication is due to qtest, which uses an icount field to warp time as part of qtest (qtest_clock_warp). In order to solve this problem, provide a separate counter for qtest. This requires fixing assumptions scattered in the code that qtest_enabled() implies icount_enabled(), checking each specific case. Signed-off-by: Claudio Fontana <cfontana@suse.de> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> [remove redundant initialization with qemu_spice_init] Reviewed-by: Alex Bennée <alex.bennee@linaro.org> [fix lingering calls to icount_get] Signed-off-by: Claudio Fontana <cfontana@suse.de> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* | Merge remote-tracking branch ↵Peter Maydell2020-10-062-12/+26
|\ \ | |/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 'remotes/stefanha-gitlab/tags/block-pull-request' into staging Pull request v2: * Removed clang-format call from scripts/block-coroutine-wrapper.py. This avoids the issue with clang version incompatibility. It could be added back in the future but the code is readable without reformatting and it also makes the build less dependent on the environment. # gpg: Signature made Mon 05 Oct 2020 16:42:28 BST # gpg: using RSA key 8695A8BFD3F97CDAAC35775A9CA4ABB381AB73C8 # gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>" [full] # gpg: aka "Stefan Hajnoczi <stefanha@gmail.com>" [full] # Primary key fingerprint: 8695 A8BF D3F9 7CDA AC35 775A 9CA4 ABB3 81AB 73C8 * remotes/stefanha-gitlab/tags/block-pull-request: util/vfio-helpers: Rework the IOVA allocator to avoid IOVA reserved regions util/vfio-helpers: Collect IOVA reserved regions docs: add 'io_uring' option to 'aio' param in qemu-options.hx include/block/block.h: drop non-ascii quotation mark block/io: refactor save/load vmstate block: drop bdrv_prwv block: generate coroutine-wrapper code scripts: add block-coroutine-wrapper.py block: declare some coroutine functions in block/coroutines.h block/io: refactor coroutine wrappers block: return error-code from bdrv_invalidate_cache block/nvme: Replace magic value by SCALE_MS definition block/nvme: Use register definitions from 'block/nvme.h' block/nvme: Drop NVMeRegs structure, directly use NvmeBar block/nvme: Reduce I/O registers scope block/nvme: Map doorbells pages write-only util/vfio-helpers: Pass page protections to qemu_vfio_pci_map_bar() Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
| * include/block/block.h: drop non-ascii quotation markVladimir Sementsov-Ogievskiy2020-10-051-1/+1
| | | | | | | | | | | | | | | | | | | | This is the only non-ascii character in the file and it doesn't really needed here. Let's use normal "'" symbol for consistency with the rest 11 occurrences of "'" in the file. Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
| * block/io: refactor save/load vmstateVladimir Sementsov-Ogievskiy2020-10-051-2/+4
| | | | | | | | | | | | | | | | | | | | | | Like for read/write in a previous commit, drop extra indirection layer, generate directly bdrv_readv_vmstate() and bdrv_writev_vmstate(). Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Message-Id: <20200924185414.28642-8-vsementsov@virtuozzo.com>
| * block: drop bdrv_prwvVladimir Sementsov-Ogievskiy2020-10-051-2/+0Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Now that we are not maintaining boilerplate code for coroutine wrappers, there is no more sense in keeping the extra indirection layer of bdrv_prwv(). Let's drop it and instead generate pure bdrv_preadv() and bdrv_pwritev(). Currently, bdrv_pwritev() and bdrv_preadv() are returning bytes on success, auto generated functions will instead return zero, as their _co_ prototype. Still, it's simple to make the conversion safe: the only external user of bdrv_pwritev() is test-bdrv-drain, and it is comfortable enough with bdrv_co_pwritev() instead. So prototypes are moved to local block/coroutines.h. Next, the only internal use is bdrv_pread() and bdrv_pwrite(), which are modified to return bytes on success. Of course, it would be great to convert bdrv_pread() and bdrv_pwrite() to return 0 on success. But this requires audit (and probably conversion) of all their users, let's leave it for another day refactoring. Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Message-Id: <20200924185414.28642-7-vsementsov@virtuozzo.com>
| * block: generate coroutine-wrapper codeVladimir Sementsov-Ogievskiy2020-10-051-6/+10
| | | | | | | | | | | | | | | | | | | | | | Use code generation implemented in previous commit to generated coroutine wrappers in block.c and block/io.c Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Message-Id: <20200924185414.28642-6-vsementsov@virtuozzo.com>
| * scripts: add block-coroutine-wrapper.pyVladimir Sementsov-Ogievskiy2020-10-051-0/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We have a very frequent pattern of creating a coroutine from a function with several arguments: - create a structure to pack parameters - create _entry function to call original function taking parameters from struct - do different magic to handle completion: set ret to NOT_DONE or EINPROGRESS or use separate bool field - fill the struct and create coroutine from _entry function with this struct as a parameter - do coroutine enter and BDRV_POLL_WHILE loop Let's reduce code duplication by generating coroutine wrappers. This patch adds scripts/block-coroutine-wrapper.py together with some friends, which will generate functions with declared prototypes marked by the 'generated_co_wrapper' specifier. The usage of new code generation is as follows: 1. define the coroutine function somewhere int coroutine_fn bdrv_co_NAME(...) {...} 2. declare in some header file int generated_co_wrapper bdrv_NAME(...); with same list of parameters (generated_co_wrapper is defined in "include/block/block.h"). 3. Make sure the block_gen_c declaration in block/meson.build mentions the file with your marker function. Still, no function is now marked, this work is for the following commit. Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-Id: <20200924185414.28642-5-vsementsov@virtuozzo.com> [Added encoding='utf-8' to open() calls as requested by Vladimir. Fixed typo and grammar issues pointed out by Eric Blake. Removed clang-format dependency that caused build test issues. --Stefan] Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
| * block: return error-code from bdrv_invalidate_cacheVladimir Sementsov-Ogievskiy2020-10-051-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is the only coroutine wrapper from block.c and block/io.c which doesn't return a value, so let's convert it to the common behavior, to simplify moving to generated coroutine wrappers in a further commit. Also, bdrv_invalidate_cache is a void function, returning error only through **errp parameter, which is considered to be bad practice, as it forces callers to define and propagate local_err variable, so conversion is good anyway. This patch leaves the conversion of .bdrv_co_invalidate_cache() driver callbacks and bdrv_invalidate_cache_all() for another day. Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Message-Id: <20200924185414.28642-2-vsementsov@virtuozzo.com>
| * util/vfio-helpers: Pass page protections to qemu_vfio_pci_map_bar()Philippe Mathieu-Daudé2020-10-051-1/+1
| | | | | | | | | | | | | | | | | | Pages are currently mapped READ/WRITE. To be able to use different protections, add a new argument to qemu_vfio_pci_map_bar(). Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Message-Id: <20200922083821.578519-2-philmd@redhat.com>
* | Merge remote-tracking branch 'remotes/rth-gitlab/tags/pull-cap-20201003' ↵Peter Maydell2020-10-053-69/+41Star
|\ \ | |/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | into staging Update capstone submodule from v3.0.5 to v5 ("next"). Convert submodule build to meson. Enable capstone disassembly for s390x. Code cleanups in disas.c # gpg: Signature made Sat 03 Oct 2020 10:33:44 BST # 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-gitlab/tags/pull-cap-20201003: disas/capstone: Add skipdata hook for s390x disas: Enable capstone disassembly for s390x disas: Split out capstone code to disas/capstone.c disas: Configure capstone for aarch64 host without libvixl disas: Cleanup plugin_disas disas: Use qemu/bswap.h for bfd endian loads disas: Clean up CPUDebug initialization disas: Move host asm annotations to tb_gen_code capstone: Require version 4.0 from a system library capstone: Update to upstream "next" branch capstone: Convert Makefile bits to meson bits Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
| * disas: Split out capstone code to disas/capstone.cRichard Henderson2020-10-031-0/+12
| | | | | | | | | | | | | | | | | | | | There is nothing target-specific about this code, so it can be added to common_ss. This also requires that the base capstone dependency be added to common_ss, so that we get the correct include paths added to CFLAGS. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
| * disas: Use qemu/bswap.h for bfd endian loadsRichard Henderson2020-10-031-5/+27
| | | | | | | | | | | | | | | | Use the routines we have already instead of open-coding. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
| * disas: Clean up CPUDebug initializationRichard Henderson2020-10-031-62/+0Star
| | | | | | | | | | | | | | | | | | | | | | Rename several functions, dropping "generic" and making "host" vs "target" clearer. Make a bunch of functions static that are not used outside this file. Replace INIT_DISASSEMBLE_INFO with a trio of functions. Acked-by: Thomas Huth <thuth@redhat.com> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
| * disas: Move host asm annotations to tb_gen_codeRichard Henderson2020-10-032-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | Instead of creating GStrings and passing them into log_disas, just print the annotations directly in tb_gen_code. Fix the annotations for the slow paths of the TB, after the part implementing the final guest instruction. Reviewed-by: Thomas Huth <thuth@redhat.com> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
* | Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into stagingPeter Maydell2020-10-022-14/+97
|\ \ | |/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Block layer patches: - Add block export infrastructure - iotests improvements - Document the throttle block filter - Misc code cleanups # gpg: Signature made Fri 02 Oct 2020 15:36:53 BST # gpg: using RSA key DC3DEB159A9AF95D3D7456FE7F09B272C88F2FD6 # gpg: issuer "kwolf@redhat.com" # gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>" [full] # Primary key fingerprint: DC3D EB15 9A9A F95D 3D74 56FE 7F09 B272 C88F 2FD6 * remotes/kevin/tags/for-upstream: (37 commits) qcow2: Use L1E_SIZE in qcow2_write_l1_entry() qemu-storage-daemon: Fix help line for --export iotests: Test block-export-* QMP interface iotests: Allow supported and unsupported formats at the same time iotests: Introduce qemu_nbd_list_log() iotests: Factor out qemu_tool_pipe_and_status() nbd: Deprecate nbd-server-add/remove nbd: Merge nbd_export_new() and nbd_export_create() block/export: Move writable to BlockExportOptions block/export: Add query-block-exports block/export: Create BlockBackend in blk_exp_add() block/export: Move blk to BlockExport block/export: Add BLOCK_EXPORT_DELETED event block/export: Add block-export-del block/export: Move strong user reference to block_exports block/export: Add 'id' option to block-export-add block/export: Add blk_exp_close_all(_type) block/export: Allocate BlockExport in blk_exp_add() block/export: Add node-name to BlockExportOptions block/export: Move AioContext from NBDExport to BlockExport ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
| * nbd: Merge nbd_export_new() and nbd_export_create()Kevin Wolf2020-10-021-6/+1Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There is no real reason any more why nbd_export_new() and nbd_export_create() should be separate functions. The latter only performs a few checks before it calls the former. What makes the current state stand out is that it's the only function in BlockExportDriver that is not a static function inside nbd/server.c, but a small wrapper in blockdev-nbd.c that then calls back into nbd/server.c for the real functionality. Move all the checks to nbd/server.c and make the resulting function static to improve readability. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com> Message-Id: <20200924152717.287415-27-kwolf@redhat.com> Acked-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
| * block/export: Create BlockBackend in blk_exp_add()Kevin Wolf2020-10-021-2/+2
| | | | | | | | | | | | | | | | | | | | | | Every export type will need a BlockBackend, so creating it centrally in blk_exp_add() instead of the .create driver callback avoids duplication. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com> Message-Id: <20200924152717.287415-24-kwolf@redhat.com> Acked-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
| * block/export: Move blk to BlockExportKevin Wolf2020-10-021-0/+3
| | | | | | | | | | | | | | | | | | | | | | Every block export has a BlockBackend representing the disk that is exported. It should live in BlockExport therefore. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com> Message-Id: <20200924152717.287415-23-kwolf@redhat.com> Acked-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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