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2016-07-07hw/block/m25p80: fix resource leakShannon Zhao
These two are spot by Coverity 1357232 and 1357233. Signed-off-by: Shannon Zhao <shannon.zhao@linaro.org> Message-id: 1467684998-12076-1-git-send-email-zhaoshenglong@huawei.com Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-07-04m25p80: qdev-ify drive propertyPaolo Bonzini
This allows specifying the property via -drive if=none and creating the flash device with -device. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Cédric Le Goater <clg@kaod.org> Message-id: 1467138270-32481-6-git-send-email-clg@kaod.org [clg: added an extra fix for sabrelite_init() keeping the test on flash_dev did not seem necessary. ] Signed-off-by: Cédric Le Goater <clg@kaod.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-07-04m25p80: change cur_addr to 32 bit integerPaolo Bonzini
The maximum amount of storage that can be addressed by the m25p80 command set is 4 GiB. However, cur_addr is currently a 64-bit integer. To avoid further problems related to sign extension of signed 32-bit integer expressions, change cur_addr to a 32 bit integer. Preserve migration format by adding a dummy 4-byte field in place of the (big-endian) high four bytes in the formerly 64-bit cur_addr field. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Cédric Le Goater <clg@kaod.org> Signed-off-by: Cédric Le Goater <clg@kaod.org> Message-id: 1467138270-32481-5-git-send-email-clg@kaod.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-07-04m25p80: avoid out of bounds accessesPaolo Bonzini
s->cur_addr can be made to point outside s->storage, either by writing a value >= 128 to s->ear (because s->ear * MAX_3BYTES_SIZE is a signed integer and sign-extends into the 64-bit cur_addr), or just by writing an address beyond the size of the flash being emulated. Avoid the sign extension to make the code cleaner, and on top of that mask s->cur_addr to s->size. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Cédric Le Goater <clg@kaod.org> Signed-off-by: Cédric Le Goater <clg@kaod.org> Message-id: 1467138270-32481-4-git-send-email-clg@kaod.org Reviewed by: Marcin Krzeminski <marcin.krzeminski@nokia.com> Signed-off-by: Cédric Le Goater <clg@kaod.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-07-04m25p80: do not put iovec on the stackPaolo Bonzini
When doing a read-modify-write cycle, QEMU uses the iovec after returning from blk_aio_pwritev. m25p80 puts the iovec on the stack of blk_aio_pwritev's caller, which causes trouble in this case. This has been a problem since commit 243e6f6 ("m25p80: Switch to byte-based block access", 2016-05-12) started doing writes at a smaller granularity than 512 bytes. In principle however it could have broken before when using -drive if=mtd,cache=none on a disk with 4K native sectors. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Cédric Le Goater <clg@kaod.org> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Cédric Le Goater <clg@kaod.org> Message-id: 1467138270-32481-3-git-send-email-clg@kaod.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-07-04ssi: change ssi_slave_init to be a realize opsCédric Le Goater
This enables qemu to handle late inits and report errors. All the SSI slave routine names were changed accordingly. Code was modified to handle errors when possible (m25p80 and ssi-sd) Tested with the m25p80 slave object. Suggested-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Cédric Le Goater <clg@kaod.org> Message-id: 1467138270-32481-2-git-send-email-clg@kaod.org Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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>
2016-06-16m25p80: 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>
2016-05-19hw: 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>
2016-05-12m25p80: 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>
2016-03-30block: 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>
2016-01-21ssi: Move ssi.h into a separate directoryAlistair Francis
Move the ssi.h include file into the ssi directory. While touching the code also fix the typdef lines as checkpatch complains. Signed-off-by: Alistair Francis <alistair.francis@xilinx.com> Reviewed-by: Peter Crosthwaite <crosthwaite.peter@gmail.com> Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-01-21m25p80.c: Add sst25wf080 SPI flash deviceAlistair Francis
Add the sst25wf080 SPI flash device. Signed-off-by: Alistair Francis <alistair.francis@xilinx.com> Reviewed-by: Peter Crosthwaite <crosthwaite.peter@gmail.com> Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-01-20block: Clean up includesPeter Maydell
Clean up includes so that osdep.h is included first and headers which it implies are not included manually. This commit was created with scripts/clean-includes. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2015-04-28m25p80: fix s->blk usage before assignmentStefan Hajnoczi
Delay the call to blk_blockalign() until s->blk has been assigned. This never caused a crash because blk_blockalign(NULL, size) defaults to 4096 alignment but it's technically incorrect. Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Message-id: 1429091024-25098-1-git-send-email-stefanha@redhat.com Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2015-04-28m25p80: add missing blk_attach_dev_nofailPaolo Bonzini
Of the block devices that poked into -drive options via drive_get_next, m25p80 was the only one who also did not attach itself to the BlockBackend. Since sd does it, and all other devices go through a "drive" property, with this change all block backends attached to the guest will have a non-NULL result for blk_get_attached_dev(). Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com> Message-id: 1429025387-11077-1-git-send-email-pbonzini@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2015-04-02hw: Mark devices picking up block backends actively FIXMEMarkus Armbruster
Drives defined with if!=none are for board initialization to wire up. Board code calls drive_get() or similar to find them, and creates devices with their qdev drive properties set accordingly. Except a few devices go on a fishing expedition for a suitable backend instead of exposing a drive property for board code to set: they call driver_get() or drive_get_next() in their realize() or init() method to implicitly connect to the "next" backend with a certain interface type. Picking up backends that way works when the devices are created by board code. But it's inappropriate for -device or device_add. Not only is this inconsistent with how the other block device models work (they connect to a backend explicitly identified by a "drive" property), it breaks when the "next" backend has been picked up by the board already. Example: $ qemu-system-arm -S -M connex -pflash flash.img -device ssi-sd Aborted (core dumped) Mark them with suitable FIXME comments. Cc: Andrzej Zaborowski <balrogg@gmail.com> Cc: Peter Crosthwaite <peter.crosthwaite@xilinx.com> Cc: "Andreas Färber" <andreas.faerber@web.de> Cc: Michael Walle <michael@walle.cc> Signed-off-by: Markus Armbruster <armbru@redhat.com>
2014-10-20hw: Convert from BlockDriverState to BlockBackend, mostlyMarkus Armbruster
Device models should access their block backends only through the block-backend.h API. Convert them, and drop direct includes of inappropriate headers. Just four uses of BlockDriverState are left: * The Xen paravirtual block device backend (xen_disk.c) opens images itself when set up via xenbus, bypassing blockdev.c. I figure it should go through qmp_blockdev_add() instead. * Device model "usb-storage" prompts for keys. No other device model does, and this one probably shouldn't do it, either. * ide_issue_trim_cb() uses bdrv_aio_discard() instead of blk_aio_discard() because it fishes its backend out of a BlockAIOCB, which has only the BlockDriverState. * PC87312State has an unused BlockDriverState[] member. The next two commits take care of the latter two. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2014-10-20block: Eliminate DriveInfo member bdrv, use blk_by_legacy_dinfo()Markus Armbruster
The patch is big, but all it really does is replacing dinfo->bdrv by blk_bs(blk_by_legacy_dinfo(dinfo)) The replacement is repetitive, but the conversion of device models to BlockBackend is imminent, and will shorten it to just blk_legacy_dinfo(dinfo). Line wrapping muddies the waters a bit. I also omit tests whether dinfo->bdrv is null, because it never is. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Benoît Canet <benoit.canet@nodalink.com> Reviewed-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2014-06-21block: m25p80: Support read only bdrvs.Peter Crosthwaite
By just never doing write-backs. This is completely invisible to the guest, as the entire storage area is implemented as device state (at realize time the entire drive is read in). Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-06-21block: m25p80: sync_page(): Deindent function body.Peter Crosthwaite
sync_page() was conditionalizing it's whole fn body on the bdrv being non-null. Just return for the function immediately on NULL brdv and get rid of the big if. Makes implementation consistent with flash_zynq_area(). Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-05-14savevm: Remove all the unneeded version_minimum_id_old (rest)Juan Quintela
After previous Peter patch, they are redundant. This way we don't assign them except when needed. Once there, there were lots of case where the ".fields" indentation was wrong: .fields = (VMStateField []) { and .fields = (VMStateField []) { Change all the combinations to: .fields = (VMStateField[]){ The biggest problem (appart from aesthetics) was that checkpatch complained when we copy&pasted the code from one place to another. Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
2014-03-12block/m25p80: Remove FROM_SSI_SLAVE() usagesPeter Crosthwaite
Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com> [AF: Rename parent field] Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-10-11blockdev: Remove IF_* check for read-only blockdev_initKevin Wolf
IF_NONE allows read-only, which makes forbidding it in this place for other types pretty much pointless. Instead, make sure that all devices for which the check would have errored out check in their init function that they don't get a read-only BlockDriverState. This catches even cases where IF_NONE and -device is used. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
2013-07-19block/m25p80: Update Micron entriesEd Maste
- Split 32Mb and 256Mb parts into a11 and a13 variants. - Add the 4K sector flag to the 128Mb parts. (These entries were taken from the Linux kernel list, which is missing the flag.) - Fill out the table of sizes with entries for 64Mb parts. Prodded by Peter Crosthwaite. Signed-off-by: Ed Maste <emaste@freebsd.org> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2013-06-01m25p80: Add Micron n25q032aEd Maste
Based on the datasheet at http://www.micron.com/~/media/Documents/Products/Data%20Sheet/NOR%20Flash/Serial%20NOR/N25Q/n25q_32mb_1_8v_65nm.pdf Signed-off-by: Ed Maste <emaste@freebsd.org> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2013-05-12m25p80.c: Sync Flash chip list with LinuxEd Maste
Add new devices for various manufacturers, and re-sort Spansion list to match the order in Linux, which requires chips with a non-zero extended ID to come first. With this commit the outstanding differences to Linux rev 55bf75b are: - Erase size flag differences in s25sl032p, s25sl064p, s25fl016k, s25fl064k (These devices have only some blocks that support small erase sizes.) - Linux lacks n25q128 - Devices without a Jedec ID have been excluded Signed-off-by: Ed Maste <emaste@freebsd.org> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2013-04-19m25p80: Remove bogus include of devices.hPeter Crosthwaite
I think in the early revisions of this we had an instantiation helper for the device in devices.h. This was later removed and this header was left over. Removed Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-04-16m25p80: Add debug message for no bdrvPeter Crosthwaite
If there is no backing bdrv, let the debugging developer know about it. Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2013-04-16m25p80.c: Multiple debug verbosity levelsPeter Crosthwaite
The debug printfs on every page program/read is extremely verbose. Add a second level of debug for this. Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2013-04-16m25p80: Convert guest errors to LOG_GUEST_ERRORPeter Crosthwaite
Some of the debug printfs in m25p80 are really guest errors. Changed over to qemu_log_mask(LOG_GUEST_ERROR accordingly. Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
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