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2019-08-21target/ppc: Rewrite a fall through commentPhilippe Mathieu-Daudé
GCC9 is confused by this comment when building with CFLAG -Wimplicit-fallthrough=2: target/ppc/mmu_helper.c: In function ‘dump_mmu’: target/ppc/mmu_helper.c:1349:12: error: this statement may fall through [-Werror=implicit-fallthrough=] 1349 | if (ppc64_v3_radix(env_archcpu(env))) { | ^ target/ppc/mmu_helper.c:1356:5: note: here 1356 | default: | ^~~~~~~ cc1: all warnings being treated as errors Rewrite the comment using 'fall through' which is recognized by GCC and static analyzers. Reported-by: Stefan Weil <sw@weilnetz.de> Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com> Acked-by: David Gibson <david@gibson.dropbear.id.au> Message-Id: <20190719131425.10835-6-philmd@redhat.com> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2019-08-21hw/ipmi: Rewrite a fall through commentPhilippe Mathieu-Daudé
GCC9 is confused by this comment when building with CFLAG -Wimplicit-fallthrough=2: hw/ipmi/ipmi_bmc_extern.c: In function ‘addchar’: hw/ipmi/ipmi_bmc_extern.c:178:12: error: this statement may fall through [-Werror=implicit-fallthrough=] 178 | ch |= 0x10; | ~~~^~~~~~~ hw/ipmi/ipmi_bmc_extern.c:181:5: note: here 181 | default: | ^~~~~~~ cc1: all warnings being treated as errors make: *** [rules.mak:69: hw/ipmi/ipmi_bmc_extern.o] Error 1 Rewrite the comment using 'fall through' which is recognized by GCC and static analyzers. Reported-by: Stefan Weil <sw@weilnetz.de> Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com> Acked-by: Corey Minyard <cminyard@mvista.com> Message-Id: <20190719131425.10835-5-philmd@redhat.com> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2019-08-21hw/dma/omap_dma: Move switch 'fall through' comment to correct placePhilippe Mathieu-Daudé
Reported by GCC9 when building with CFLAG -Wimplicit-fallthrough=2: CC hw/dma/omap_dma.o hw/dma/omap_dma.c: In function ‘omap_dma_write’: hw/dma/omap_dma.c:1532:12: error: this statement may fall through [-Werror=implicit-fallthrough=] 1532 | if (s->model <= omap_dma_3_1) | ^ hw/dma/omap_dma.c:1534:5: note: here 1534 | case 0x400: | ^~~~ cc1: all warnings being treated as errors Correctly place the 'fall through' comment. Reported-by: Stefan Weil <sw@weilnetz.de> Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-Id: <20190719131425.10835-3-philmd@redhat.com> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2019-08-21json: Move switch 'fall through' comment to correct placePhilippe Mathieu-Daudé
Reported by GCC9 when building with CFLAG -Wimplicit-fallthrough=2: qobject/json-parser.c: In function ‘parse_literal’: qobject/json-parser.c:492:24: error: this statement may fall through [-Werror=implicit-fallthrough=] 492 | case JSON_INTEGER: { | ^ qobject/json-parser.c:524:5: note: here 524 | case JSON_FLOAT: | ^~~~ Correctly place the 'fall through' comment. Reported-by: Stefan Weil <sw@weilnetz.de> Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-Id: <20190719131425.10835-2-philmd@redhat.com> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2019-08-21hw/net/e1000: Fix erroneous commentPhilippe Mathieu-Daudé
Missed during the QOM convertion in 9af21dbee14. Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Stefano Garzarella <sgarzare@redhat.com> Message-Id: <20190715102210.31365-1-philmd@redhat.com> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2019-08-21.gitignore: ignore some vhost-user* related filesMichal Privoznik
Commit d52c454aadc creates '/contrib/vhost-user-gpu/50-qemu-gpu.json' and '/vhost-user-gpu' and commit 06914c97d3a creates '/vhost-user-input' neither of which is ignored by git. Signed-off-by: Michal Privoznik <mprivozn@redhat.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-Id: <db150a03315a89a849ab9968e4a5a26110d41424.1562942402.git.mprivozn@redhat.com> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2019-08-21configure: fix sdl detection using sdl2-configCarlo Marcelo Arenas Belón
If SDL2 is requested but pkg-config doesn't have a module for it configure should fallback to use sdl*-config, but wasn't able to because and old variable (from SDL) was being used by mistake. Correct the variable name and complete other related changes so there are no more references to the old SDL. Fixes: 0015ca5cbabe ("ui: remove support for SDL1.2 in favour of SDL2") Signed-off-by: Carlo Marcelo Arenas Belón <carenas@gmail.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Message-Id: <20190710225528.409-1-carenas@gmail.com> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2019-08-21configure: remove obsoleted $sparc_cpu variableCarlo Marcelo Arenas Belón
9b9c37c364 ("tcg-sparc: Assume v9 cpu always, i.e. force v8plus in 32-bit mode.", 2012-09-21) removed the need for this variable and most of the references to it, but this one. Remove defunct code, no effect or functionality change expected. Signed-off-by: Carlo Marcelo Arenas Belón <carenas@gmail.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-Id: <20190709234330.89699-1-carenas@gmail.com> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2019-08-21misc: fix naming scheme of compatiblity arraysMarc-André Lureau
Since merge 31ed41889e6e13699871040fe089a2884dca46cb ("Merge remote-tracking branch 'remotes/elmarco/tags/machine-props-pull-request' into staging"), the compat arrays are in lowercase. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Stefano Garzarella <sgarzare@redhat.com> Message-Id: <20190708204909.10891-1-marcandre.lureau@redhat.com> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2019-08-21test: Use g_strndup instead of plain strnduptony.nguyen@bt.com
Due to memory management rules. See HACKING. Signed-off-by: Tony Nguyen <tony.nguyen@bt.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Message-Id: <dce313b46d294ada8826d34609a3447e@tpw09926dag18e.domain1.systemhost.net> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2019-08-20Merge remote-tracking branch ↵Peter Maydell
'remotes/huth-gitlab/tags/pull-request-2019-08-20' into staging - Improvements for the Kconfig switches and Makefiles # gpg: Signature made Tue 20 Aug 2019 08:26:41 BST # gpg: using RSA key 27B88847EEE0250118F3EAB92ED9D774FE702DB5 # gpg: issuer "thuth@redhat.com" # gpg: Good signature from "Thomas Huth <th.huth@gmx.de>" [full] # gpg: aka "Thomas Huth <thuth@redhat.com>" [full] # gpg: aka "Thomas Huth <huth@tuxfamily.org>" [full] # gpg: aka "Thomas Huth <th.huth@posteo.de>" [unknown] # Primary key fingerprint: 27B8 8847 EEE0 2501 18F3 EAB9 2ED9 D774 FE70 2DB5 * remotes/huth-gitlab/tags/pull-request-2019-08-20: hw/core: Add a config switch for the generic loader device hw/misc: Add a config switch for the "unimplemented" device hw/core: Add a config switch for the "split-irq" device hw/core: Add a config switch for the "or-irq" device hw/core: Add a config switch for the "register" device hw/dma: Do not build the xlnx_dpdma device for the MicroBlaze machines hw/intc: Only build the xlnx-iomod-intc device for the MicroBlaze PMU hw/Kconfig: Move the generic XLNX_ZYNQMP to the root hw/Kconfig Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-08-20Merge remote-tracking branch 'remotes/amarkovic/tags/mips-queue-aug-20-2019' ↵Peter Maydell
into staging MIPS queue for August 20th, 2019 # gpg: Signature made Mon 19 Aug 2019 19:07:18 BST # gpg: using RSA key D4972A8967F75A65 # gpg: Good signature from "Aleksandar Markovic <amarkovic@wavecomp.com>" [unknown] # gpg: WARNING: This key is not certified with a trusted signature! # gpg: There is no indication that the signature belongs to the owner. # Primary key fingerprint: 8526 FBF1 5DA3 811F 4A01 DD75 D497 2A89 67F7 5A65 * remotes/amarkovic/tags/mips-queue-aug-20-2019: target/mips: tests/tcg: Fix target configurations for MSA tests target/mips: tests/tcg: Add optional printing of more detailed failure info target/mips: Style improvements in mips_mipssim.c target/mips: Style improvements in mips_malta.c target/mips: Style improvements in mips_int.c target/mips: Style improvements in mips_fulong2e.c target/mips: Style improvements in cps.c target/mips: Style improvements in translate.c target/mips: Style improvements in machine.c target/mips: Style improvements in cpu.c target/mips: Style improvements in cp0_timer.c Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-08-20Merge remote-tracking branch 'remotes/maxreitz/tags/pull-block-2019-08-19' ↵Peter Maydell
into staging Block patches: - preallocation=falloc/full support for LUKS - Various minor fixes # gpg: Signature made Mon 19 Aug 2019 16:36:45 BST # gpg: using RSA key 91BEB60A30DB3E8857D11829F407DB0061D5CF40 # gpg: issuer "mreitz@redhat.com" # gpg: Good signature from "Max Reitz <mreitz@redhat.com>" [full] # Primary key fingerprint: 91BE B60A 30DB 3E88 57D1 1829 F407 DB00 61D5 CF40 * remotes/maxreitz/tags/pull-block-2019-08-19: doc: Preallocation does not require writing zeroes iotests: Fix 141 when run with qed vpc: Do not return RAW from block_status vmdk: Make block_status recurse for flat extents vdi: Make block_status recurse for fixed images iotests: Full mirror to existing non-zero image iotests: Test convert -n to pre-filled image iotests: Convert to preallocated encrypted qcow2 vhdx: Fix .bdrv_has_zero_init() vdi: Fix .bdrv_has_zero_init() qcow2: Fix .bdrv_has_zero_init() block: Use bdrv_has_zero_init_truncate() block: Implement .bdrv_has_zero_init_truncate() block: Add bdrv_has_zero_init_truncate() mirror: Fix bdrv_has_zero_init() use qemu-img: Fix bdrv_has_zero_init() use in convert LUKS: support preallocation Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-08-20hw/core: Add a config switch for the generic loader deviceThomas Huth
The generic loader device is completely optional. Let's add a proper config switch for it so that people can disable it if they don't need it and want to create a minimalistic QEMU binary. Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-Id: <20190817101931.28386-9-thuth@redhat.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
2019-08-20hw/misc: Add a config switch for the "unimplemented" deviceThomas Huth
The device is only used by some few boards. Let's use a proper Kconfig switch so that we only compile this code if we really need it. Message-Id: <20190817101931.28386-8-thuth@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
2019-08-20hw/core: Add a config switch for the "split-irq" deviceThomas Huth
The "split-irq" device is currently only used by machines that use CONFIG_ARMSSE. Let's add a proper CONFIG_SPLIT_IRQ switch for this so that it only gets compiled when we really need it. Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-Id: <20190817101931.28386-7-thuth@redhat.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
2019-08-20hw/core: Add a config switch for the "or-irq" deviceThomas Huth
The "or-irq" device is only used by certain machines. Let's add a proper config switch for it so that it only gets compiled when we really need it. Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-Id: <20190817101931.28386-6-thuth@redhat.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
2019-08-20hw/core: Add a config switch for the "register" deviceThomas Huth
The "register" device is only used by certain machines. Let's add a proper config switch for it so that it only gets compiled when we really need it. Message-Id: <20190817101931.28386-5-thuth@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
2019-08-19hw/dma: Do not build the xlnx_dpdma device for the MicroBlaze machinesPhilippe Mathieu-Daudé
The xlnx_dpdma device is only used by the ZynqMP AArch64 machine (not the MicroBlaze PMU). Remove it from the ZynqMP generic objects. (Note, this entry was duplicated for the AArch64). Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-Id: <20190427141459.19728-4-philmd@redhat.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
2019-08-19hw/intc: Only build the xlnx-iomod-intc device for the MicroBlaze PMUPhilippe Mathieu-Daudé
The Xilinx I/O Module Interrupt Controller is only used by the MicroBlaze PMU, not by the AArch64 machine. Move it from the generic ZynqMP object list to the PMU specific. Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-Id: <20190427141459.19728-3-philmd@redhat.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
2019-08-19hw/Kconfig: Move the generic XLNX_ZYNQMP to the root hw/KconfigPhilippe Mathieu-Daudé
The XLNX_ZYNQMP config is used in multiple subdirectories (timer, intc). Move it to the root hw/Kconfig. Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-Id: <20190427141459.19728-2-philmd@redhat.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
2019-08-19target/mips: tests/tcg: Fix target configurations for MSA testsAleksandar Markovic
At this moment, the only MIPS CPUs that are emulated in QEMU and support MSA extension are R5600 (mips32r5), and I6400/I6500 (mips64r6). Therefore, mips32r5 and mips64r6 are the only ISAs that could support MSA in QEMU. This means mips32r6 currently do not make much sense, and mips32r5 support for MSA tests is needed, which is done by this patch. Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com> Reviewed-by: Aleksandar Rikalo <arikalo@wavecomp.com> Message-Id: <1566216496-17375-38-git-send-email-aleksandar.markovic@rt-rk.com>
2019-08-19target/mips: tests/tcg: Add optional printing of more detailed failure infoAleksandar Markovic
There is a need for printing input and output data for failure cases, for debugging purpose. This is achieved by this patch, and only if a preprocessor constant is manually set to 1. (Assumption is that the need for such printout is relatively rare.) Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com> Reviewed-by: Aleksandar Rikalo <arikalo@wavecomp.com> Message-Id: <1566216496-17375-37-git-send-email-aleksandar.markovic@rt-rk.com>
2019-08-19target/mips: Style improvements in mips_mipssim.cAleksandar Markovic
Fixes mostly errors and warnings reported by 'checkpatch.pl -f'. Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com> Reviewed-by: Aleksandar Rikalo <arikalo@wavecomp.com> Message-Id: <1566216496-17375-17-git-send-email-aleksandar.markovic@rt-rk.com>
2019-08-19target/mips: Style improvements in mips_malta.cAleksandar Markovic
Fixes mostly errors and warnings reported by 'checkpatch.pl -f'. Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com> Reviewed-by: Aleksandar Rikalo <arikalo@wavecomp.com> Message-Id: <1566216496-17375-16-git-send-email-aleksandar.markovic@rt-rk.com>
2019-08-19target/mips: Style improvements in mips_int.cAleksandar Markovic
Fixes mostly errors and warnings reported by 'checkpatch.pl -f'. Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com> Reviewed-by: Aleksandar Rikalo <arikalo@wavecomp.com> Message-Id: <1566216496-17375-15-git-send-email-aleksandar.markovic@rt-rk.com>
2019-08-19target/mips: Style improvements in mips_fulong2e.cAleksandar Markovic
Fixes mostly errors and warnings reported by 'checkpatch.pl -f'. Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com> Reviewed-by: Aleksandar Rikalo <arikalo@wavecomp.com> Message-Id: <1566216496-17375-14-git-send-email-aleksandar.markovic@rt-rk.com>
2019-08-19target/mips: Style improvements in cps.cAleksandar Markovic
Fixes mostly errors and warnings reported by 'checkpatch.pl -f'. Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com> Reviewed-by: Aleksandar Rikalo <arikalo@wavecomp.com> Message-Id: <1566216496-17375-13-git-send-email-aleksandar.markovic@rt-rk.com>
2019-08-19target/mips: Style improvements in translate.cAleksandar Markovic
Fixes mostly errors and warnings reported by 'checkpatch.pl -f'. Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com> Reviewed-by: Aleksandar Rikalo <arikalo@wavecomp.com> Message-Id: <1566216496-17375-12-git-send-email-aleksandar.markovic@rt-rk.com>
2019-08-19target/mips: Style improvements in machine.cAleksandar Markovic
Fixes mostly errors and warnings reported by 'checkpatch.pl -f'. Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-Id: <1566216496-17375-10-git-send-email-aleksandar.markovic@rt-rk.com>
2019-08-19target/mips: Style improvements in cpu.cAleksandar Markovic
Fixes mostly errors and warnings reported by 'checkpatch.pl -f'. Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-Id: <1566216496-17375-8-git-send-email-aleksandar.markovic@rt-rk.com>
2019-08-19target/mips: Style improvements in cp0_timer.cAleksandar Markovic
Fixes mostly errors and warnings reported by 'checkpatch.pl -f'. Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-Id: <1566216496-17375-7-git-send-email-aleksandar.markovic@rt-rk.com>
2019-08-19Merge remote-tracking branch 'remotes/rth/tags/pull-dt-20190819' into stagingPeter Maydell
Implement parameter fields. Push warning pragmas into the generated code. # gpg: Signature made Mon 19 Aug 2019 16:14:41 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-dt-20190819: target/riscv: Remove redundant declaration pragmas decodetree: Suppress redundant declaration warnings decodetree: Allow !function with no input bits Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-08-19doc: Preallocation does not require writing zeroesMax Reitz
When preallocating an encrypted qcow2 image, it just lets the protocol driver write data and then does not mark the clusters as zero. Therefore, reading this image will yield effectively random data. As such, we have not fulfilled the promise of always writing zeroes when preallocating an image in a while. It seems that nobody has really cared, so change the documentation to conform to qemu's actual behavior. Signed-off-by: Max Reitz <mreitz@redhat.com> Message-id: 20190711132935.13070-1-mreitz@redhat.com Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Reviewed-by: Maxim Levitsky <mlevitsk@redhat.com> Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-08-19iotests: Fix 141 when run with qedMax Reitz
69f47505ee has changed qcow2 in such a way that the commit job run in test 141 (and 144[1]) returns before it emits the READY event. However, 141 also runs with qed, where the order is still the other way around. Just filter out the {"return": {}} so the test passes for qed again. [1] 144 only runs with qcow2, so it is fine as it is. Suggested-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Fixes: 69f47505ee66afaa513305de0c1895a224e52c45 Signed-off-by: Max Reitz <mreitz@redhat.com> Message-id: 20190809185253.17535-1-mreitz@redhat.com Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Reviewed-by: John Snow <jsnow@redhat.com> Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-08-19vpc: Do not return RAW from block_statusMax Reitz
vpc is not really a passthrough driver, even when using the fixed subformat (where host and guest offsets are equal). It should handle preallocation like all other drivers do, namely by returning DATA | RECURSE instead of RAW. There is no tangible difference but the fact that bdrv_is_allocated() no longer falls through to the protocol layer. Signed-off-by: Max Reitz <mreitz@redhat.com> Message-id: 20190725155512.9827-4-mreitz@redhat.com Reviewed-by: John Snow <jsnow@redhat.com> Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-08-19vmdk: Make block_status recurse for flat extentsMax Reitz
Fixes: 69f47505ee66afaa513305de0c1895a224e52c45 Signed-off-by: Max Reitz <mreitz@redhat.com> Message-id: 20190725155512.9827-3-mreitz@redhat.com Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Reviewed-by: John Snow <jsnow@redhat.com> Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-08-19vdi: Make block_status recurse for fixed imagesMax Reitz
Suggested-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Fixes: 69f47505ee66afaa513305de0c1895a224e52c45 Signed-off-by: Max Reitz <mreitz@redhat.com> Message-id: 20190725155512.9827-2-mreitz@redhat.com Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Reviewed-by: John Snow <jsnow@redhat.com> Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-08-19iotests: Full mirror to existing non-zero imageMax Reitz
The result of a sync=full mirror should always be the equal to the input. Therefore, existing images should be treated as potentially non-zero and thus should be explicitly initialized to be zero beforehand. Signed-off-by: Max Reitz <mreitz@redhat.com> Message-id: 20190724171239.8764-12-mreitz@redhat.com Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-08-19iotests: Test convert -n to pre-filled imageMax Reitz
Signed-off-by: Max Reitz <mreitz@redhat.com> Message-id: 20190724171239.8764-11-mreitz@redhat.com Reviewed-by: Maxim Levitsky <mlevitsk@redhat.com> Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-08-19iotests: Convert to preallocated encrypted qcow2Max Reitz
Add a test case for converting an empty image (which only returns zeroes when read) to a preallocated encrypted qcow2 image. qcow2_has_zero_init() should return 0 then, thus forcing qemu-img convert to create zero clusters. Signed-off-by: Max Reitz <mreitz@redhat.com> Acked-by: Stefano Garzarella <sgarzare@redhat.com> Tested-by: Stefano Garzarella <sgarzare@redhat.com> Message-id: 20190724171239.8764-10-mreitz@redhat.com Reviewed-by: Maxim Levitsky <mlevitsk@redhat.com> Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-08-19vhdx: Fix .bdrv_has_zero_init()Max Reitz
Fixed VHDX images cannot guarantee to be zero-initialized. If the image has the "fixed" subformat, forward the call to the underlying storage node. Reported-by: Stefano Garzarella <sgarzare@redhat.com> Signed-off-by: Max Reitz <mreitz@redhat.com> Message-id: 20190724171239.8764-9-mreitz@redhat.com Reviewed-by: Maxim Levitsky <mlevitsk@redhat.com> Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-08-19vdi: Fix .bdrv_has_zero_init()Max Reitz
Static VDI images cannot guarantee to be zero-initialized. If the image has been statically allocated, forward the call to the underlying storage node. Reported-by: Stefano Garzarella <sgarzare@redhat.com> Signed-off-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Stefan Weil <sw@weilnetz.de> Acked-by: Stefano Garzarella <sgarzare@redhat.com> Tested-by: Stefano Garzarella <sgarzare@redhat.com> Message-id: 20190724171239.8764-8-mreitz@redhat.com Reviewed-by: Maxim Levitsky <mlevitsk@redhat.com> Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-08-19qcow2: Fix .bdrv_has_zero_init()Max Reitz
If a qcow2 file is preallocated, it can no longer guarantee that it initially appears as filled with zeroes. So implement .bdrv_has_zero_init() by checking whether the file is preallocated; if so, forward the call to the underlying storage node, except for when it is encrypted: Encrypted preallocated images always return effectively random data, so .bdrv_has_zero_init() must always return 0 for them. .bdrv_has_zero_init_truncate() can remain bdrv_has_zero_init_1(), because it presupposes PREALLOC_MODE_OFF. Reported-by: Stefano Garzarella <sgarzare@redhat.com> Signed-off-by: Max Reitz <mreitz@redhat.com> Message-id: 20190724171239.8764-7-mreitz@redhat.com Reviewed-by: Maxim Levitsky <mlevitsk@redhat.com> Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-08-19block: Use bdrv_has_zero_init_truncate()Max Reitz
vhdx and parallels call bdrv_has_zero_init() when they do not really care about an image's post-create state but only about what happens when you grow an image. That is a bit ugly, and also overly safe when growing preallocated images without preallocating the new areas. Let them use bdrv_has_zero_init_truncate() instead. Signed-off-by: Max Reitz <mreitz@redhat.com> Message-id: 20190724171239.8764-6-mreitz@redhat.com Reviewed-by: Maxim Levitsky <mlevitsk@redhat.com> Reviewed-by: Stefano Garzarella <sgarzare@redhat.com> [mreitz: Added commit message] Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-08-19block: Implement .bdrv_has_zero_init_truncate()Max Reitz
We need to implement .bdrv_has_zero_init_truncate() for every block driver that supports truncation and has a .bdrv_has_zero_init() implementation. Implement it the same way each driver implements .bdrv_has_zero_init(). This is at least not any more unsafe than what we had before. Signed-off-by: Max Reitz <mreitz@redhat.com> Message-id: 20190724171239.8764-5-mreitz@redhat.com Reviewed-by: Maxim Levitsky <mlevitsk@redhat.com> Reviewed-by: Stefano Garzarella <sgarzare@redhat.com> Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-08-19block: Add bdrv_has_zero_init_truncate()Max Reitz
No .bdrv_has_zero_init() implementation returns 1 if growing the file would add non-zero areas (at least with PREALLOC_MODE_OFF), so using it in lieu of this new function was always safe. But on the other hand, it is possible that growing an image that is not zero-initialized would still add a zero-initialized area, like when using nonpreallocating truncation on a preallocated image. For callers that care only about truncation, not about creation with potential preallocation, this new function is useful. Alternatively, we could have added a PreallocMode parameter to bdrv_has_zero_init(). But the only user would have been qemu-img convert, which does not have a plain PreallocMode value right now -- it would have to parse the creation option to obtain it. Therefore, the simpler solution is to let bdrv_has_zero_init() inquire the preallocation status and add the new bdrv_has_zero_init_truncate() that presupposes PREALLOC_MODE_OFF. Signed-off-by: Max Reitz <mreitz@redhat.com> Message-id: 20190724171239.8764-4-mreitz@redhat.com Reviewed-by: Maxim Levitsky <mlevitsk@redhat.com> Reviewed-by: Stefano Garzarella <sgarzare@redhat.com> Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-08-19mirror: Fix bdrv_has_zero_init() useMax Reitz
bdrv_has_zero_init() only has meaning for newly created images or image areas. If the mirror job itself did not create the image, it cannot rely on bdrv_has_zero_init()'s result to carry any meaning. This is the case for drive-mirror with mode=existing and always for blockdev-mirror. Note that we only have to zero-initialize the target with sync=full, because other modes actually do not promise that the target will contain the same data as the source after the job -- sync=top only promises to copy anything allocated in the top layer, and sync=none will only copy new I/O. (Which is how mirror has always handled it.) Signed-off-by: Max Reitz <mreitz@redhat.com> Message-id: 20190724171239.8764-3-mreitz@redhat.com Reviewed-by: Maxim Levitsky <mlevitsk@redhat.com> Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-08-19qemu-img: Fix bdrv_has_zero_init() use in convertMax Reitz
bdrv_has_zero_init() only has meaning for newly created images or image areas. If qemu-img convert did not create the image itself, it cannot rely on bdrv_has_zero_init()'s result to carry any meaning. Signed-off-by: Max Reitz <mreitz@redhat.com> Message-id: 20190724171239.8764-2-mreitz@redhat.com Reviewed-by: Maxim Levitsky <mlevitsk@redhat.com> Reviewed-by: Stefano Garzarella <sgarzare@redhat.com> Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-08-19LUKS: support preallocationMaxim Levitsky
preallocation=off and preallocation=metadata both allocate luks header only, and preallocation=falloc/full is passed to underlying file. Fixes: https://bugzilla.redhat.com/show_bug.cgi?id=1534951 Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com> Message-id: 20190716161901.1430-1-mlevitsk@redhat.com Signed-off-by: Max Reitz <mreitz@redhat.com>
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