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* sdhci: implement CMD/DAT[] fields in the Present State registerPhilippe Mathieu-Daudé2018-02-131-0/+16
| | | | | | | | [based on a patch from Alistair Francis <alistair.francis@xilinx.com> from qemu/xilinx tag xilinx-v2015.2] Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Alistair Francis <alistair.francis@xilinx.com> Message-Id: <20180208164818.7961-23-f4bug@amsat.org>
* sdhci: implement UHS-I voltage switchPhilippe Mathieu-Daudé2018-02-131-0/+13
| | | | | | | | [based on a patch from Alistair Francis <alistair.francis@xilinx.com> from qemu/xilinx tag xilinx-v2015.2] Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Alistair Francis <alistair.francis@xilinx.com> Message-Id: <20180208164818.7961-22-f4bug@amsat.org>
* hw/sd: Replace fprintf(stderr, "*\n" with DPRINTF()Alistair Francis2018-02-061-3/+4
| | | | | | | | | | Signed-off-by: Alistair Francis <alistair.francis@xilinx.com> [Most of original patch dropped, commit message replaced to match what's left] Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-Id: <20180203084315.20497-11-armbru@redhat.com> Reviewed-by: Thomas Huth <thuth@redhat.com>
* hw/sd: fix out-of-bounds check for multi block readsMichael Olbrich2017-10-061-6/+6
| | | | | | | | | | | | | | The current code checks if the next block exceeds the size of the card. This generates an error while reading the last block of the card. Do the out-of-bounds check when starting to read a new block to fix this. This issue became visible with increased error checking in Linux 4.13. Cc: qemu-stable@nongnu.org Signed-off-by: Michael Olbrich <m.olbrich@pengutronix.de> Reviewed-by: Alistair Francis <alistair.francis@xilinx.com> Message-id: 20170916091611.10241-1-m.olbrich@pengutronix.de Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
* hw/block: Request permissionsKevin Wolf2017-02-281-0/+6
| | | | | | | | | | This makes all device emulations with a qdev drive property request permissions on their BlockBackend. The only thing we block at this point is resizing images for some devices that can't support it. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Acked-by: Fam Zheng <famz@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com>
* block: Allow error return in BlockDevOps.change_media_cb()Kevin Wolf2017-02-281-1/+1
| | | | | | | | | | | Some devices allow a media change between read-only and read-write media. They need to adapt the permissions in their .change_media_cb() implementation, which can fail. So add an Error parameter to the function. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com> Acked-by: Fam Zheng <famz@redhat.com>
* sd: free timerMarc-André Lureau2016-09-081-0/+9
| | | | | | | Free the timer allocated in instance_init. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Andrew Baumann <Andrew.Baumann@microsoft.com>
* hw: explicitly include qemu/log.hPaolo Bonzini2016-05-191-0/+1
| | | | | | Move the inclusion out of hw/hw.h, most files do not need it. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* sd: Switch to byte-based block accessEric Blake2016-05-121-47/+4Star
| | | | | | | | | | | | | | Sector-based blk_write() should die; switch to byte-based blk_pwrite() instead. Likewise for blk_read(). Greatly simplifies the code, now that we let the block layer take care of alignment and read-modify-write on our behalf :) In fact, we no longer need to include 'buf' in the migration stream (although we do have to ensure that the stream remains compatible). Signed-off-by: Eric Blake <eblake@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
* include/qemu/osdep.h: Don't include qapi/error.hMarkus Armbruster2016-03-221-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 57cb38b included qapi/error.h into qemu/osdep.h to get the Error typedef. Since then, we've moved to include qemu/osdep.h everywhere. Its file comment explains: "To avoid getting into possible circular include dependencies, this file should not include any other QEMU headers, with the exceptions of config-host.h, compiler.h, os-posix.h and os-win32.h, all of which are doing a similar job to this file and are under similar constraints." qapi/error.h doesn't do a similar job, and it doesn't adhere to similar constraints: it includes qapi-types.h. That's in excess of 100KiB of crap most .c files don't actually need. Add the typedef to qemu/typedefs.h, and include that instead of qapi/error.h. Include qapi/error.h in .c files that need it and don't get it now. Include qapi-types.h in qom/object.h for uint16List. Update scripts/clean-includes accordingly. Update it further to match reality: replace config.h by config-target.h, add sysemu/os-posix.h, sysemu/os-win32.h. Update the list of includes in the qemu/osdep.h comment quoted above similarly. This reduces the number of objects depending on qapi/error.h from "all of them" to less than a third. Unfortunately, the number depending on qapi-types.h shrinks only a little. More work is needed for that one. Signed-off-by: Markus Armbruster <armbru@redhat.com> [Fix compilation without the spice devel packages. - Paolo] Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* sd: Fix "info qtree" on boards with SD cardsPeter Maydell2016-03-161-2/+4
| | | | | | | | | | | | | | | | | | | The SD card object is not a SysBusDevice, so don't create it with qdev_create() if we're not assigning it to a specific bus; use object_new() instead. This was causing 'info qtree' to segfault on boards with SD cards, because qdev_create(NULL, TYPE_FOO) puts the created object on the system bus, and then we may try to run functions like sysbus_dev_print() on it, which fail when casting the object to SysBusDevice. (This is the same mistake that we made with the NAND device and fixed in commit 6749695eaaf346c1.) Reported-by: xiaoqiang.zhao <zxq_yx_007@163.com> Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: xiaoqiang.zhao <zxq_yx_007@163.com> Message-id: 1458061009-7733-1-git-send-email-peter.maydell@linaro.org
* sd.c: Handle NULL block backend in sd_get_inserted()Peter Maydell2016-03-041-1/+1
| | | | | | | | | | | | | | | | The sd.c SD card emulation code can be in a state where the SDState BlockBackend pointer is NULL; this is treated as "card not present". Add a missing check to sd_get_inserted() so that we don't segfault in this situation. (This could be provoked by the guest writing to the SDHCI register to do a reset on a xilinx-zynq-a9 board; it will also happen at startup when sdhci implements its DeviceClass reset method.) Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Alistair Francis <alistair.francis@xilinx.com> Message-id: 1456493044-10025-2-git-send-email-peter.maydell@linaro.org
* hw/sd: use guest error logging rather than fprintf to stderrAndrew Baumann2016-02-181-9/+12
| | | | | | | | | | | | Some of these errors may be harmless (e.g. probing unimplemented commands, or issuing CMD12 in the wrong state), and may also be quite frequent. Spamming the standard error output isn't desirable in such cases. Reviewed-by: Peter Crosthwaite <crosthwaite.peter@gmail.com> Signed-off-by: Andrew Baumann <Andrew.Baumann@microsoft.com> Message-id: 1454902521-21164-4-git-send-email-Andrew.Baumann@microsoft.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
* hw/sd: model a power-up delay, as a workaround for an EDK2 bugAndrew Baumann2016-02-181-5/+76
| | | | | | | | | | | | | | | | | | | | | | | | | | The SD spec for ACMD41 says that a zero argument is an "inquiry" ACMD41, which does not start initialisation and is used only for retrieving the OCR. However, Tianocore EDK2 (UEFI) has a bug [1]: it first sends an inquiry (zero) ACMD41. If that first request returns an OCR value with the power up bit (0x80000000) set, it assumes the card is ready and continues, leaving the card in the wrong state. (My assumption is that this works on hardware, because no real card is immediately powered up upon reset.) This change models a delay of 0.5ms from the first ACMD41 to the power being up. However, it also immediately sets the power on upon seeing a non-zero (non-enquiry) ACMD41. This speeds up UEFI boot, it should also account for guests that simply delay after card reset and then issue an ACMD41 that they expect will succeed. [1] https://github.com/tianocore/edk2/blob/master/EmbeddedPkg/Universal/MmcDxe/MmcIdentification.c#L279 (This is the loop starting with "We need to wait for the MMC or SD card is ready") Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Andrew Baumann <Andrew.Baumann@microsoft.com> Message-id: 1454902521-21164-3-git-send-email-Andrew.Baumann@microsoft.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
* hw/sd: implement CMD23 (SET_BLOCK_COUNT) for MMC compatibilityAndrew Baumann2016-02-181-0/+37
| | | | | | | | | | CMD23 is optional for SD but required for MMC, and the UEFI bootloader used for Windows on Raspberry Pi 2 issues it. Reviewed-by: Peter Crosthwaite <crosthwaite.peter@gmail.com> Signed-off-by: Andrew Baumann <Andrew.Baumann@microsoft.com> Message-id: 1454902521-21164-2-git-send-email-Andrew.Baumann@microsoft.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
* hw/sd: Add QOM bus which SD cards plug in toPeter Maydell2016-02-181-4/+43
| | | | | | | | | | | | | | | | | | | | | | | | Add a QOM bus for SD cards to plug in to. Note that since sd_enable() is used only by one board and there only as part of a broken implementation, we do not provide it in the SDBus API (but instead add a warning comment about the old function). Whoever converts OMAP and the nseries boards to QOM will need to either implement the card switch properly or move the enable hack into the OMAP MMC controller model. In the SDBus API, the old-style use of sd_set_cb to register some qemu_irqs for notification of card insertion and write-protect toggling is replaced with methods in the SDBusClass which the card calls on status changes and methods in the SDClass which the controller can call to find out the current status. The query methods will allow us to remove the abuse of the 'register irqs' API by controllers in their reset methods to trigger the card to tell them about the current status again. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Alistair Francis <alistair.francis@xilinx.com> Message-id: 1455646193-13238-5-git-send-email-peter.maydell@linaro.org
* hw/sd/sd.c: Convert sd_reset() function into Device reset methodPeter Maydell2016-02-181-5/+5
| | | | | | | | | Convert the sd_reset() function into a proper Device reset method. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Alistair Francis <alistair.francis@xilinx.com> Reviewed-by: Peter Crosthwaite <crosthwaite.peter@gmail.com> Message-id: 1455646193-13238-4-git-send-email-peter.maydell@linaro.org
* hw/sd/sd.c: QOMifyPeter Maydell2016-02-181-22/+77
| | | | | | | | | | | | Turn the SD card into a QOM device. This conversion only changes the device itself; the various functions which are effectively methods on the device are not touched at this point. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Peter Crosthwaite <crosthwaite.peter@gmail.com> Reviewed-by: Alistair Francis <alistair.francis@xilinx.com> Message-id: 1455646193-13238-3-git-send-email-peter.maydell@linaro.org
* sd: limit 'req.cmd' while using as an array indexPrasad J Pandit2016-02-111-2/+5
| | | | | | | | | | | | | While processing standard SD commands, the 'req.cmd' value could lead to OOB read when used as an index into 'sd_cmd_type' or 'sd_cmd_class' arrays. Limit 'req.cmd' value to avoid such an access. Reported-by: Qinghao Tang <luodalongde@gmail.com> Signed-off-by: Prasad J Pandit <pjp@fedoraproject.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1453315857-1352-1-git-send-email-ppandit@redhat.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
* hw: Clean up includesPeter Maydell2016-01-291-0/+1
| | | | | | | | | | 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> Message-id: 1453832250-766-38-git-send-email-peter.maydell@linaro.org
* sd: Mark brittle abuse of blk_attach_dev() FIXMEMarkus Armbruster2015-12-071-0/+1
| | | | | | | | | | | | | | blk_attach_dev() fails here only when we're working for device "sdhci-pci" (which already attached the backend), and then we don't want to attach a second time. If we ever create another failure mode, we're setting up ourselves to using the same backend from multiple frontends, which is likely to end in tears. Can't clean this up this close to the release, so mark it FIXME. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1449503710-3707-3-git-send-email-armbru@redhat.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
* sd.h: Move sd.h to include/hw/sd/Sai Pavan Boddu2015-10-291-1/+1
| | | | | | | | | | Create a sd directory under include/hw/ and move sd.h to include/hw/sd/ Signed-off-by: Sai Pavan Boddu <saipava@xilinx.com> Reviewed-by: Alistair Francis <alistair.francis@xilinx.com> Reviewed-by: Peter Crosthwaite <crosthwaite.peter@gmail.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
* sdhci: Pass drive parameter to sdhci-pci via qdev propertyKevin O'Connor2015-10-121-1/+3
| | | | | | | | | | | Commit 19109131 disabled the sdhci-pci support because it used drive_get_next(). This patch reenables sdhci-pci and changes it to pass the drive via a qdev property - for example: -device sdhci-pci,drive=drive0 -drive id=drive0,if=sd,file=myimage Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Kevin O'Connor <kevin@koconnor.net> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
* maint: avoid useless "if (foo) free(foo)" patternDaniel P. Berrange2015-09-111-2/+1Star
| | | | | | | | | | | | The free() and g_free() functions both happily accept NULL on any platform QEMU builds on. As such putting a conditional 'if (foo)' check before calls to 'free(foo)' merely serves to bloat the lines of code. Signed-off-by: Daniel P. Berrange <berrange@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
* hw/sd: Don't pass BlockBackend to sd_reset()Peter Maydell2015-05-121-9/+8Star
| | | | | | | | | | The only valid BlockBackend to pass to sd_reset() is the one for the SD card, which is sd->blk. Drop the second argument from this function in favour of having it just use sd->blk. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Markus Armbruster <armbru@redhat.com> Message-id: 1430683444-9797-1-git-send-email-peter.maydell@linaro.org
* sd: convert sd_normal_command() ffs(3) call to ctz32()Stefan Hajnoczi2015-04-281-1/+2
| | | | | | | | | | | | | | | | | | ffs() cannot be replaced with ctz32() when the argument might be zero, because ffs(0) returns 0 while ctz32(0) returns 32. The ffs(3) call in sd_normal_command() is a special case though. It can be converted to ctz32() + 1 because the argument is never zero: if (!(req.arg >> 8) || (req.arg >> (ctz32(req.arg & ~0xff) + 1))) { ~~~~~~~~~~~~~~~ ^--------------- req.arg cannot be zero Cc: Markus Armbruster <armbru@redhat.com> Cc: Peter Crosthwaite <peter.crosthwaite@xilinx.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Message-id: 1427124571-28598-7-git-send-email-stefanha@redhat.com Signed-off-by: Kevin Wolf <kwolf@redhat.com>
* hw: Convert from BlockDriverState to BlockBackend, mostlyMarkus Armbruster2014-10-201-30/+30
| | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* hw/sd/sd.c: Drop unused sd_acmd_type[] arrayPeter Maydell2014-06-101-11/+0Star
| | | | | | | | | | | | | Drop the sd_acmd_type[] array: it is never used. (The equivalent sd_cmd_type[] array for normal commands is used to identify those commands whose argument includes the card address in the top 16 bits; but for app commands the card address is passed with the APP_CMD prefix, not with the argument to the app command itself.) Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
* sd: Avoid access to NULL BlockDriverStateAndreas Färber2013-10-171-1/+1
| | | | | | | | | | | | | | Commit 4f8a066b5fc254eeaabbbde56ba4f5b29cc68fdf (blockdev: Remove IF_* check for read-only blockdev_init) added a usage of bdrv_is_read_only() to sd_init(), which is called for versatilepb, versatileab and xilinx-zynq-a9 machines among others with NULL argument by default, causing the new qom-test to fail. Add a check to prevent this. Suggested-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
* blockdev: Remove IF_* check for read-only blockdev_initKevin Wolf2013-10-111-0/+5
| | | | | | | | | | | | | 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>
* sd/sd.c: Fix "inquiry" ACMD41Peter Crosthwaite2013-06-031-2/+9
| | | | | | | | | | | | QEMU models two (of the three) ACMD41 has two modes, "inquiry" and "first". The selection logic for which of the two is incorrect - it compares != 0 for the entire argument value rather than only bits 23:0 as per the spec. Fix. Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com> Message-id: 3ef0a7fd1b2f3ebb23b4fdeabcc14caf3fad6d71.1369622254.git.peter.crosthwaite@xilinx.com Reviewed-by: Igor Mitsyanko <i.mitsyanko@gmail.com> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
* Typo, spelling and grammatical fixesPeter Maydell2013-04-121-2/+2
| | | | | | | Minor fixes to documentation and code comments. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
* hw: move target-independent files to subdirectoriesPaolo Bonzini2013-04-081-0/+1764
This patch tackles all files that are compiled once, moving them to subdirectories of hw/. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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