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2016-06-27m25p80: Fix WINBOND fast read command handlingMarcin Krzeminski
This commit fix obvious bug in WINBOND command handling. Datasheet states that default dummy cycles is 8 so fix it. Signed-off-by: Marcin Krzeminski <marcin.krzeminski@nokia.com> Message-id: 1466755631-25201-11-git-send-email-marcin.krzeminski@nokia.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-06-27m25p80: New flash devices.Marcin Krzeminski
Macronix: mx66u51235f and mx66u1g45g Micron: mt25ql01g and mt25qu01g Spansion: s25fs512s and s70fs01gs Signed-off-by: Marcin Krzeminski <marcin.krzeminski@nokia.com> Reviewed-by: Cédric Le Goater <clg@kaod.org> Message-id: 1466755631-25201-10-git-send-email-marcin.krzeminski@nokia.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-06-27m25p80: Fast read commands family changes.Marcin Krzeminski
Support for Spansion and Macronix flashes. Additionally Numonyx(Micron) moved from default in fast read commands family. Also moved fast read command decoding to functions. Signed-off-by: Marcin Krzeminski <marcin.krzeminski@nokia.com> Reviewed-by: Cédric Le Goater <clg@kaod.org> Message-id: 1466755631-25201-9-git-send-email-marcin.krzeminski@nokia.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-06-27m25p80: Introduce configuration registers.Marcin Krzeminski
Configuration registers for Spansion and Macronix devices. Signed-off-by: Marcin Krzeminski <marcin.krzeminski@nokia.com> Reviewed-by: Cédric Le Goater <clg@kaod.org> Message-id: 1466755631-25201-8-git-send-email-marcin.krzeminski@nokia.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-06-27m25p80: Introduce quad and equad modes.Marcin Krzeminski
Quad and Equad modes for Spansion and Macronix flash devices. This commit also includes modification and new command to manipulate quad mode (status registers and dedicated commands). This work is based on Pawel Lenkow work. Signed-off-by: Marcin Krzeminski <marcin.krzeminski@nokia.com> Reviewed-by: Cédric Le Goater <clg@kaod.org> Message-id: 1466755631-25201-7-git-send-email-marcin.krzeminski@nokia.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-06-27m25p80: Add additional flash commands:Marcin Krzeminski
Page program 4byte/quad and erase 32K sectors 4 bytes. Signed-off-by: Marcin Krzeminski <marcin.krzeminski@nokia.com> Reviewed-by: Cédric Le Goater <clg@kaod.org> Message-id: 1466755631-25201-6-git-send-email-marcin.krzeminski@nokia.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-06-27m25p80: Introduce COLLECTING_VAR_LEN_DATA state.Marcin Krzeminski
Some flash allows to stop read at any time. Allow framework to support this. Signed-off-by: Marcin Krzeminski <marcin.krzeminski@nokia.com> Reviewed-by: Cédric Le Goater <clg@kaod.org> Message-id: 1466755631-25201-5-git-send-email-marcin.krzeminski@nokia.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-06-27m25p80: Allow more than four banks.Marcin Krzeminski
Allow to have more than four 16MiB regions for bigger flash devices. Signed-off-by: Marcin Krzeminski <marcin.krzeminski@nokia.com> Reviewed-by: Cédric Le Goater <clg@kaod.org> Message-id: 1466755631-25201-4-git-send-email-marcin.krzeminski@nokia.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-06-27m25p80: Make a table for JEDEC ID.Marcin Krzeminski
Since it is now longer than 4. This work based on Pawel Lenkow changes and the kernel SPI framework. Signed-off-by: Marcin Krzeminski <marcin.krzeminski@nokia.com> Reviewed-by: Cédric Le Goater <clg@kaod.org> Message-id: 1466755631-25201-3-git-send-email-marcin.krzeminski@nokia.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-06-27m25p80: Replace JEDEC ID masking with function.Marcin Krzeminski
Instead of always reading and comparing jededc ID, replace it by function. Signed-off-by: Marcin Krzeminski <marcin.krzeminski@nokia.com> Message-id: 1466755631-25201-2-git-send-email-marcin.krzeminski@nokia.com Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-06-24virtio-bus: remove old set_host_notifier callbackCornelia Huck
All users have been converted to the new ioevent callbacks. Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> Reviewed-by: Fam Zheng <famz@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2016-06-24virtio-bus: have callers tolerate new host notifier apiCornelia Huck
Have vhost and dataplane use the new api for transports that have been converted. Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> Reviewed-by: Fam Zheng <famz@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2016-06-22xen: fix qdisk BLKIF_OP_DISCARD for 32/64 word size mixJuergen Gross
In case the word size of the domU and qemu running the qdisk backend differ BLKIF_OP_DISCARD will not work reliably, as the request structure in the ring have different layouts for different word size. Correct this by copying the request structure in case of different word size element by element in the BLKIF_OP_DISCARD case, too. Signed-off-by: Juergen Gross <jgross@suse.com> Acked-by: Stefano Stabellini <sstabellini@kernel.org> Signed-off-by: Stefano Stabellini <sstabellini@kernel.org>
2016-06-22xen: fix style of hw/block/xen_blkif.hJuergen Gross
Fix hw/block/xen_blkif.h to match qemu coding style. Signed-off-by: Juergen Gross <jgross@suse.com> Acked-by: Stefano Stabellini <sstabellini@kernel.org> Signed-off-by: Stefano Stabellini <sstabellini@kernel.org>
2016-06-20trace: split out trace events for hw/block/ directoryDaniel P. Berrange
Move all trace-events for files in the hw/block/ directory to their own file. Signed-off-by: Daniel P. Berrange <berrange@redhat.com> Message-id: 1466066426-16657-8-git-send-email-berrange@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2016-06-16os-posix: include sys/mman.hPaolo Bonzini
qemu/osdep.h checks whether MAP_ANONYMOUS is defined, but this check is bogus without a previous inclusion of sys/mman.h. Include it in sysemu/os-posix.h and remove it from everywhere else. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-06-16m25p80: fix test on blk_pread() return valueCédric Le Goater
commit 243e6f69c129 ("m25p80: Switch to byte-based block access") replaced blk_read() calls with blk_pread() but return values are different. Signed-off-by: Cédric Le Goater <clg@kaod.org> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2016-06-13xen/blkif: avoid double access to any shared ring request fieldsJan Beulich
Commit f9e98e5d7a ("xen/blkif: Avoid double access to src->nr_segments") didn't go far enough: src->operation is also being used twice. And nothing was done to prevent the compiler from using the source side of the copy done by blk_get_request() (granted that's very unlikely). Move the barrier()s up, and add another one to blk_get_request(). Note that for completing XSA-155, the barrier() getting added to blk_get_request() would suffice, and hence the changes to xen_blkif.h are more like just cleanup. And since, as said, the unpatched code getting compiled to something vulnerable is very unlikely (and not observed in practice), this isn't being viewed as a new security issue. Signed-off-by: Jan Beulich <jbeulich@suse.com> Reviewed-by: Stefano Stabellini <sstabellini@kernel.org> Signed-off-by: Stefano Stabellini <sstabellini@kernel.org>
2016-06-07Merge remote-tracking branch ↵Peter Maydell
'remotes/mjt/tags/pull-trivial-patches-2016-06-07' into staging trivial patches for 2016-06-07 # gpg: Signature made Tue 07 Jun 2016 16:20:52 BST # gpg: using RSA key 0xBEE59D74A4C3D7DB # gpg: Good signature from "Michael Tokarev <mjt@tls.msk.ru>" # gpg: aka "Michael Tokarev <mjt@corpit.ru>" # gpg: aka "Michael Tokarev <mjt@debian.org>" * remotes/mjt/tags/pull-trivial-patches-2016-06-07: (51 commits) hbitmap: Use DIV_ROUND_UP qemu-timer: Use DIV_ROUND_UP linux-user: Use DIV_ROUND_UP slirp: Use DIV_ROUND_UP usb: Use DIV_ROUND_UP rocker: Use DIV_ROUND_UP SPICE: Use DIV_ROUND_UP audio: Use DIV_ROUND_UP xen: Use DIV_ROUND_UP crypto: Use DIV_ROUND_UP block: Use DIV_ROUND_UP qed: Use DIV_ROUND_UP qcow/qcow2: Use DIV_ROUND_UP parallels: Use DIV_ROUND_UP coccinelle: use macro DIV_ROUND_UP instead of (((n) + (d) - 1) /(d)) thunk: Rename args and fields in host-target bitmask conversion code thunk: Drop unused NO_THUNK_TYPE_SIZE guards qemu-common.h: Drop WORDS_ALIGNED define host-utils: Prefer 'false' for bool type docs/multi-thread-compression: Fix wrong command string ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-06-07block: Use DIV_ROUND_UPLaurent Vivier
Replace (((n) + (d) - 1) /(d)) by DIV_ROUND_UP(n,d). This patch is the result of coccinelle script scripts/coccinelle/round.cocci CC: qemu-block@nongnu.org Signed-off-by: Laurent Vivier <lvivier@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2016-06-07virtio-blk: Remove op blocker for dataplaneFam Zheng
Block layer is prepared to unspecialize dataplane, an evidence is this almost complete list of unblocked operations. It has all types except two (actually three if DATAPLANE itself counts but blockdev.c makes sure attaching twice is not possible): MIRROR_TARGET and BACKUP_TARGET. blockdev-mirror refuses to start if target is attached, so the first is not a problem. By removing BACKUP_TARGET, blockdev-backup will become permissive to write to a virtio-blk dataplane disk, but that is not worse than non-dataplane given the latter is already possible. In either case, blockdev.c always checks the target and source are on the same AioContext, or bring them together if possible. Signed-off-by: Fam Zheng <famz@redhat.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Message-id: 1463969978-24970-4-git-send-email-famz@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2016-05-25dma-helpers: change interface to byte-basedPaolo Bonzini
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2016-05-19hw: explicitly include qemu/log.hPaolo Bonzini
Move the inclusion out of hw/hw.h, most files do not need it. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-05-19qemu-common: stop including qemu/bswap.h from qemu-common.hPaolo Bonzini
Move it to the actual users. There are still a few includes of qemu/bswap.h in headers; removing them is left for future work. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-05-12m25p80: Switch to byte-based block accessEric Blake
Sector-based blk_read() should die; switch to byte-based blk_pread() instead. Likewise for blk_aio_readv() and blk_aio_writev(). Signed-off-by: Eric Blake <eblake@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2016-05-12pflash: Switch to byte-based block accessEric Blake
Sector-based blk_write() should die; switch to byte-based blk_pwrite() instead. Likewise for blk_read(). Signed-off-by: Eric Blake <eblake@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2016-05-12onenand: Switch to byte-based block accessEric Blake
Sector-based blk_write() should die; switch to byte-based blk_pwrite() instead. Likewise for blk_read(). This particular device picks its size during onenand_initfn(), and can be at most 0x80000000 bytes; therefore, shifting an 'int sec' request to get back to a byte offset should never overflow 32 bits. But adding assertions to document that point should not hurt. Signed-off-by: Eric Blake <eblake@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2016-05-12nand: Switch to byte-based block accessEric Blake
Sector-based blk_write() should die; switch to byte-based blk_pwrite() instead. Likewise for blk_read(). This file is doing some complex computations to map various flash page sizes (256, 512, and 2048) atop generic uses of 512-byte sector operations. Perhaps someone will want to tidy up the file for fewer gymnastics in managing addresses and offsets, and less wasteful visits of 256-byte pages, but it was out of scope for this series, where I just went with the mechanical conversion. Signed-off-by: Eric Blake <eblake@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2016-05-12fdc: Switch to byte-based block accessEric Blake
Sector-based blk_write() should die; switch to byte-based blk_pwrite() instead. Likewise for blk_read(). Signed-off-by: Eric Blake <eblake@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2016-05-12xen_disk: Switch to byte-based aio block accessEric Blake
Sector-based blk_aio_readv() and blk_aio_writev() should die; switch to byte-based blk_aio_preadv() and blk_aio_pwritev() instead. Signed-off-by: Eric Blake <eblake@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2016-05-12virtio: Switch to byte-based aio block accessEric Blake
Sector-based blk_aio_readv() and blk_aio_writev() should die; switch to byte-based blk_aio_preadv() and blk_aio_pwritev() instead. The trace is modified at the same time, and nb_sectors is now unused. Fix a comment typo while in the vicinity. Signed-off-by: Eric Blake <eblake@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2016-05-12block: Switch blk_read_unthrottled() to byte interfaceEric Blake
Sector-based blk_read() should die; convert the one-off variant blk_read_unthrottled(). Signed-off-by: Eric Blake <eblake@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2016-04-15Fix pflash migrationDr. David Alan Gilbert
Pflash migration (e.g. q35 + EFI variable storage) fails with the assert: bdrv_co_do_pwritev: Assertion `!(bs->open_flags & 0x0800)' failed. This avoids the problem by delaying the pflash update until after the device loads complete. Tested by: Migrating Q35/EFI vm. Changing efi variable content (with efiboot in the guest) md5sum'ing the variable file before migration and after. This is a fix that Paolo posted in the message 570244B3.4070105@redhat.com Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Acked-by: Laszlo Ersek <lersek@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2016-04-07virtio: merge virtio_queue_aio_set_host_notifier_handler with ↵Paolo Bonzini
virtio_queue_set_aio Eliminating the reentrancy is actually a nice thing that we can do with the API that Michael proposed, so let's make it first class. This also hides the complex assign/set_handler conventions from callers of virtio_queue_aio_set_host_notifier_handler, which in fact was always called with assign=true. Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2016-04-07virtio-blk: use aio handler for data planeMichael S. Tsirkin
In addition to handling IO in vcpu thread and in io thread, dataplane introduces yet another mode: handling it by AioContext. This reuses the same handler as previous modes, which triggers races as these were not designed to be reentrant. Use a separate handler just for aio, and disable regular handlers when dataplane is active. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2016-04-07virtio-blk: fix disabled modePaolo Bonzini
We must not call virtio_blk_data_plane_notify if dataplane is disabled: we would hit a segmentation fault in notify_guest_bh as s->guest_notifier has not been setup and is NULL. Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2016-03-30block: m25p80: at25128a/at25256a modelsMarcin Krzeminski
Signed-off-by: Marcin Krzeminski <marcin.krzeminski@nokia.com> Reviewed-by: Peter Crosthwaite <crosthwaite.peter@gmail.com> Message-id: 1458719789-29868-12-git-send-email-marcin.krzeminski@nokia.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-03-30block: m25p80: n25q256a/n25q512a modelsMarcin Krzeminski
Signed-off-by: Marcin Krzeminski <marcin.krzeminski@nokia.com> Reviewed-by: Peter Crosthwaite <crosthwaite.peter@gmail.com> Message-id: 1458719789-29868-11-git-send-email-marcin.krzeminski@nokia.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-03-30block: m25p80: Implemented FSR registerMarcin Krzeminski
Implements FSR register, it is used for busy waits. Signed-off-by: Marcin Krzeminski <marcin.krzeminski@nokia.com> Reviewed-by: Peter Crosthwaite <crosthwaite.peter@gmail.com> Message-id: 1458719789-29868-10-git-send-email-marcin.krzeminski@nokia.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-03-30block: m25p80: Fast read and 4bytes commandsMarcin Krzeminski
Adds fast read and 4bytes commands family. This work is based on Pawel Lenkow patch from v1. Signed-off-by: Marcin Krzeminski <marcin.krzeminski@nokia.com> Reviewed-by: Peter Crosthwaite <crosthwaite.peter@gmail.com> Message-id: 1458719789-29868-9-git-send-email-marcin.krzeminski@nokia.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-03-30block: m25p80: Dummy cycles for N25Q256/512Marcin Krzeminski
Use the setting from the volatile cfg register to correctly set the number of dummy cycles. Signed-off-by: Marcin Krzeminski <marcin.krzeminski@nokia.com> Reviewed-by: Peter Crosthwaite <crosthwaite.peter@gmail.com> Message-id: 1458719789-29868-8-git-send-email-marcin.krzeminski@nokia.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-03-30block: m25p80: Add configuration registersMarcin Krzeminski
This patch adds both volatile and non volatile configuration registers and commands to allow modify them. It is needed for proper handling dummy cycles. Initialization of those registers and flash state has been included as well. Some of this registers are used by kernel. Signed-off-by: Marcin Krzeminski <marcin.krzeminski@nokia.com> Acked-by: Peter Crosthwaite <crosthwaite.peter@gmail.com> Message-id: 1458719789-29868-7-git-send-email-marcin.krzeminski@nokia.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-03-30block: m25p80: 4byte address modeMarcin Krzeminski
This patch adds only 4byte address mode (does not cover dummy cycles). This mode is needed to access more than 16 MiB of flash. Signed-off-by: Marcin Krzeminski <marcin.krzeminski@nokia.com> Reviewed-by: Peter Crosthwaite <crosthwaite.peter@gmail.com> Message-id: 1458719789-29868-6-git-send-email-marcin.krzeminski@nokia.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-03-30block: m25p80: Extend address modeMarcin Krzeminski
Extend address mode allows to switch flash 16 MiB banks, allowing user to access all flash sectors. This access mode is used by u-boot. Signed-off-by: Marcin Krzeminski <marcin.krzeminski@nokia.com> Reviewed-by: Peter Crosthwaite <crosthwaite.peter@gmail.com> Message-id: 1458719789-29868-5-git-send-email-marcin.krzeminski@nokia.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-03-30block: m25p80: Widen flags variableMarcin Krzeminski
Extend the width of the flags variable to support the already existing (but unused) WR_1 flag, which is above the range of 8 bits. This allows support of EEPROM emulation which requires the WR_1 feature. Signed-off-by: Marcin Krzeminski <marcin.krzeminski@nokia.com> Reviewed-by: Peter Crosthwaite <crosthwaite.peter@gmail.com> Message-id: 1458719789-29868-4-git-send-email-marcin.krzeminski@nokia.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-03-30block: m25p80: RESET_ENABLE and RESET_MEMORY commandsMarcin Krzeminski
Signed-off-by: Marcin Krzeminski <marcin.krzeminski@nokia.com> Reviewed-by: Peter Crosthwaite <crosthwaite.peter@gmail.com> Message-id: 1458719789-29868-3-git-send-email-marcin.krzeminski@nokia.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-03-30block: m25p80: Removed unused variableMarcin Krzeminski
Signed-off-by: Marcin Krzeminski <marcin.krzeminski@nokia.com> Reviewed-by: Peter Crosthwaite <crosthwaite.peter@gmail.com> Message-id: 1458719789-29868-2-git-send-email-marcin.krzeminski@nokia.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-03-30xen_disk: Call blk_set_enable_write_cache() explicitlyKevin Wolf
Signed-off-by: Kevin Wolf <kwolf@redhat.com> Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Reviewed-by: Max Reitz <mreitz@redhat.com>
2016-03-22util: move declarations out of qemu-common.hVeronia Bahaa
Move declarations out of qemu-common.h for functions declared in utils/ files: e.g. include/qemu/path.h for utils/path.c. Move inline functions out of qemu-common.h and into new files (e.g. include/qemu/bcd.h) Signed-off-by: Veronia Bahaa <veroniabahaa@gmail.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-03-22Replaced get_tick_per_sec() by NANOSECONDS_PER_SECONDRutuja Shah
This patch replaces get_ticks_per_sec() calls with the macro NANOSECONDS_PER_SECOND. Also, as there are no callers, get_ticks_per_sec() is then removed. This replacement improves the readability and understandability of code. For example, timer_mod(fdctrl->result_timer, qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) + (get_ticks_per_sec() / 50)); NANOSECONDS_PER_SECOND makes it obvious that qemu_clock_get_ns matches the unit of the expression on the right side of the plus. Signed-off-by: Rutuja Shah <rutu.shah.26@gmail.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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