Tested-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20231221031652.119827-53-richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20231020130331.50048-3-philmd@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
sysbus_mmio_map() and sysbus_connect_irq() should not be
called on unrealized device.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20231020130331.50048-2-philmd@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Block Size Register bits [14:12] is SDMA Buffer Boundary, it is missed
in register write, but it is needed in SDMA transfer. e.g. it will be
used in sdhci_sdma_transfer_multi_blocks to calculate boundary_ variables.
Missing this field will cause wrong operation for different SDMA Buffer
Boundary settings.
Fixes: d7dfca0807 ("hw/sdhci: introduce standard SD host controller")
Fixes: dfba99f17f ("hw/sdhci: Fix DMA Transfer Block Size field")
Signed-off-by: Lu Gao <lu.gao@verisilicon.com>
Signed-off-by: Jianxian Wen <jianxian.wen@verisilicon.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-ID: <20220321055618.4026-1-lu.gao@verisilicon.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
* Fixes for the Aspeed I2C model
* New SDK image for avocado tests
* blockdev support for flash device definition
* SD refactoring preparing ground for eMMC support
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Merge tag 'pull-aspeed-20230901' of https://github.com/legoater/qemu into staging
aspeed queue:
* Fixes for the Aspeed I2C model
* New SDK image for avocado tests
* blockdev support for flash device definition
* SD refactoring preparing ground for eMMC support
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# gpg: aka "Cédric Le Goater <clg@kaod.org>" [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: A0F6 6548 F048 95EB FE6B 0B60 51A3 43C7 CFFB ECA1
* tag 'pull-aspeed-20230901' of https://github.com/legoater/qemu: (26 commits)
hw/sd: Introduce a "sd-card" SPI variant model
hw/sd: Add sd_cmd_SET_BLOCK_COUNT() handler
hw/sd: Add sd_cmd_SEND_TUNING_BLOCK() handler
hw/sd: Add sd_cmd_SEND_RELATIVE_ADDR() handler
hw/sd: Add sd_cmd_ALL_SEND_CID() handler
hw/sd: Add sd_cmd_SEND_OP_CMD() handler
hw/sd: Add sd_cmd_GO_IDLE_STATE() handler
hw/sd: Add sd_cmd_unimplemented() handler
hw/sd: Add sd_cmd_illegal() handler
hw/sd: Introduce sd_cmd_handler type
hw/sd: Move proto_name to SDProto structure
hw/sd: When card is in wrong state, log which spec version is used
hw/sd: When card is in wrong state, log which state it is
hw/sd/sdcard: Return ILLEGAL for CMD19/CMD23 prior SD spec v3.01
aspeed: Get the BlockBackend of FMC0 from the flash device
m25p80: Introduce an helper to retrieve the BlockBackend of a device
aspeed: Create flash devices only when defaults are enabled
hw/ssi: Check for duplicate CS indexes
aspeed/smc: Wire CS lines at reset
hw/ssi: Introduce a ssi_get_cs() helper
...
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
and replace the SDState::spi attribute with a test checking the
SDProto array of commands.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Message-Id: <20210624142209.1193073-11-f4bug@amsat.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Message-Id: <20210624142209.1193073-10-f4bug@amsat.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Message-Id: <20210624142209.1193073-8-f4bug@amsat.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Log illegal commands as GUEST_ERROR.
Note: we are logging back the SDIO commands (CMD5, CMD52-54).
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Message-Id: <20210624142209.1193073-6-f4bug@amsat.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Add 2 command handler arrays in SDProto, for CMD and ACMD.
Have sd_normal_command() / sd_app_command() use these arrays:
if an command handler is registered, call it, otherwise fall
back to current code base.
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Message-Id: <20210624142209.1193073-5-f4bug@amsat.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Introduce a new structure to hold the bus protocol specific
fields: SDProto. The first field is the protocol name.
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Message-Id: <20210624142209.1193073-4-f4bug@amsat.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
We report the card is in an inconsistent state, but don't precise
in which state it is. Add this information, as it is useful when
debugging problems.
Since we will reuse this code, extract as sd_invalid_state_for_cmd()
helper.
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Message-Id: <20210624142209.1193073-2-f4bug@amsat.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
CMD19 (SEND_TUNING_BLOCK) and CMD23 (SET_BLOCK_COUNT) were
added in the Physical Layer Simplified Specification v3.01.
When earlier spec version is requested, we should return ILLEGAL.
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Message-Id: <20220509141320.98374-1-philippe.mathieu.daude@gmail.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Message-ID: <20230823065335.1919380-18-mjt@tls.msk.ru>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Since commit c0a55a0c9d "hw/sd/sdhci: Support big endian SD host controller
interfaces" sdhci_common_realize() forces all SD card controllers to use either
sdhci_mmio_le_ops or sdhci_mmio_be_ops, depending on the "endianness" property.
However, there are device models which use different MMIO ops: TYPE_IMX_USDHC
uses usdhc_mmio_ops and TYPE_S3C_SDHCI uses sdhci_s3c_mmio_ops.
Forcing sdhci_mmio_le_ops breaks SD card handling on the "sabrelite" board, for
example. Fix this by defaulting the io_ops to little endian and switch to big
endian in sdhci_common_realize() only if there is a matchig big endian variant
available.
Fixes: c0a55a0c9d ("hw/sd/sdhci: Support big endian SD host controller
interfaces")
Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Message-Id: <20230709080950.92489-1-shentey@gmail.com>
We use the user_ss[] array to hold the user emulation sources,
and the softmmu_ss[] array to hold the system emulation ones.
Hold the latter in the 'system_ss[]' array for parity with user
emulation.
Mechanical change doing:
$ sed -i -e s/softmmu_ss/system_ss/g $(git grep -l softmmu_ss)
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230613133347.82210-10-philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
QEMU allows qemu_irq lines to transfer arbitrary integers. However
the convention is that for a simple IRQ line the values transferred
are always 0 and 1. The A10 SD controller device instead assumes a
0-vs-non-0 convention, which happens to work with the interrupt
controller it is wired up to.
Coerce the value to boolean to follow our usual convention.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Message-id: 20230606104609.3692557-3-peter.maydell@linaro.org
A64's sd register was similar to H3, and it introduced a new register
named SAMP_DL_REG location at 0x144. The dma descriptor buffer size of
mmc2 is only 8K and the other mmc controllers has 64K.
Also fix allwinner-r40's mmc controller type.
Signed-off-by: qianfan Zhao <qianfanguijin@163.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
In allwinner_sdhost_process_desc() we just read directly from
guest memory into a host TransferDescriptor struct and back.
This only works on little-endian hosts. Abstract the reading
and writing of descriptors into functions that handle the
byte-swapping so that TransferDescriptor structs as seen by
the rest of the code are always in host-order.
This fixes a failure of one of the avocado tests on s390.
Cc: qemu-stable@nongnu.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20230424165053.1428857-2-peter.maydell@linaro.org
Bring the files in line with the QEMU coding style, with spaces
for indentation.
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/378
Signed-off-by: Yeqi Fu <fufuyqqqqqq@gmail.com>
Message-Id: <20230315032649.57568-1-fufuyqqqqqq@gmail.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20230109140306.23161-4-philmd@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Some SDHCI IP can be synthetized in various endianness:
https://github.com/u-boot/u-boot/blob/v2021.04/doc/README.fsl-esdhc
- CONFIG_SYS_FSL_ESDHC_BE
ESDHC IP is in big-endian mode. Accessing ESDHC registers can be
determined by ESDHC IP's endian mode or processor's endian mode.
Our current implementation is little-endian. In order to support
big endianness:
- Rename current MemoryRegionOps as sdhci_mmio_le_ops ('le')
- Add an 'endianness' property to SDHCIState (default little endian)
- Set the 'io_ops' field in realize() after checking the property
- Add the sdhci_mmio_be_ops (big-endian) MemoryRegionOps.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Tested-by: Bernhard Beschow <shentey@gmail.com>
Reviewed-by: Bernhard Beschow <shentey@gmail.com>
Message-Id: <20221101222934.52444-3-philmd@linaro.org>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Trying to run U-Boot for Cubieboard (Allwinner A10) fails because it cannot
access SD card. The problem is that FIFO register in current
allwinner-sdhost implementation is at the address corresponding to
Allwinner H3, but not A10.
Linux kernel is not affected since Linux driver uses DMA access and does
not use FIFO register for reading/writing.
This patch adds new class parameter `is_sun4i` and based on that
parameter uses register at offset 0x100 either as FIFO register (if
sun4i) or as threshold register (if not sun4i; in this case register at
0x200 is FIFO register).
Tested with U-Boot and Linux kernel image built for Cubieboard and
OrangePi PC.
Signed-off-by: Strahinja Jankovic <strahinja.p.jankovic@gmail.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20221112214900.24152-1-strahinja.p.jankovic@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
The device model's functions start with "usdhc_", so rename the defines
accordingly for consistency.
Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Message-Id: <20221018210146.193159-5-shentey@gmail.com>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
These defines aren't used outside of sdhci.c, so can be defined there.
Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20221018210146.193159-4-shentey@gmail.com>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Swap 'buf' and 'bytes' around for consistency with
blk_co_{pread,pwrite}(), and in preparation to implement these functions
using generated_co_wrapper.
Callers were updated using this Coccinelle script:
@@ expression blk, offset, buf, bytes, flags; @@
- blk_pread(blk, offset, buf, bytes, flags)
+ blk_pread(blk, offset, bytes, buf, flags)
@@ expression blk, offset, buf, bytes, flags; @@
- blk_pwrite(blk, offset, buf, bytes, flags)
+ blk_pwrite(blk, offset, bytes, buf, flags)
It had no effect on hw/block/nand.c, presumably due to the #if, so that
file was updated manually.
Overly-long lines were then fixed by hand.
Signed-off-by: Alberto Faria <afaria@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Hanna Reitz <hreitz@redhat.com>
Message-Id: <20220705161527.1054072-4-afaria@redhat.com>
Signed-off-by: Hanna Reitz <hreitz@redhat.com>
For consistency with other I/O functions, and in preparation to
implement it using generated_co_wrapper.
Callers were updated using this Coccinelle script:
@@ expression blk, offset, buf, bytes; @@
- blk_pread(blk, offset, buf, bytes)
+ blk_pread(blk, offset, buf, bytes, 0)
It had no effect on hw/block/nand.c, presumably due to the #if, so that
file was updated manually.
Overly-long lines were then fixed by hand.
Signed-off-by: Alberto Faria <afaria@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Hanna Reitz <hreitz@redhat.com>
Message-Id: <20220705161527.1054072-3-afaria@redhat.com>
Signed-off-by: Hanna Reitz <hreitz@redhat.com>
U-Boot queries the FIFO water level to reduce checking status register
when doing PIO SD card operation.
Report a FIFO water level of 1 when data is ready, to prevent the code
from trying to read 0 words from the FIFO each time.
Signed-off-by: Icenowy Zheng <uwu@icenowy.me>
Message-id: 20220520124200.2112699-1-uwu@icenowy.me
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
The issue reported by OSS-Fuzz produces the following backtrace:
==447470==ERROR: AddressSanitizer: heap-buffer-overflow
READ of size 1 at 0x61500002a080 thread T0
#0 0x71766d47 in sdhci_read_dataport hw/sd/sdhci.c:474:18
#1 0x7175f139 in sdhci_read hw/sd/sdhci.c:1022:19
#2 0x721b937b in memory_region_read_accessor softmmu/memory.c:440:11
#3 0x72171e51 in access_with_adjusted_size softmmu/memory.c:554:18
#4 0x7216f47c in memory_region_dispatch_read1 softmmu/memory.c:1424:16
#5 0x7216ebb9 in memory_region_dispatch_read softmmu/memory.c:1452:9
#6 0x7212db5d in flatview_read_continue softmmu/physmem.c:2879:23
#7 0x7212f958 in flatview_read softmmu/physmem.c:2921:12
#8 0x7212f418 in address_space_read_full softmmu/physmem.c:2934:18
#9 0x721305a9 in address_space_rw softmmu/physmem.c:2962:16
#10 0x7175a392 in dma_memory_rw_relaxed include/sysemu/dma.h:89:12
#11 0x7175a0ea in dma_memory_rw include/sysemu/dma.h:132:12
#12 0x71759684 in dma_memory_read include/sysemu/dma.h:152:12
#13 0x7175518c in sdhci_do_adma hw/sd/sdhci.c:823:27
#14 0x7174bf69 in sdhci_data_transfer hw/sd/sdhci.c:935:13
#15 0x7176aaa7 in sdhci_send_command hw/sd/sdhci.c:376:9
#16 0x717629ee in sdhci_write hw/sd/sdhci.c:1212:9
#17 0x72172513 in memory_region_write_accessor softmmu/memory.c:492:5
#18 0x72171e51 in access_with_adjusted_size softmmu/memory.c:554:18
#19 0x72170766 in memory_region_dispatch_write softmmu/memory.c:1504:16
#20 0x721419ee in flatview_write_continue softmmu/physmem.c:2812:23
#21 0x721301eb in flatview_write softmmu/physmem.c:2854:12
#22 0x7212fca8 in address_space_write softmmu/physmem.c:2950:18
#23 0x721d9a53 in qtest_process_command softmmu/qtest.c:727:9
A DMA descriptor is previously filled in RAM. An I/O access to the
device (frames #22 to #16) start the DMA engine (frame #13). The
engine fetch the descriptor and execute the request, which itself
accesses the SDHCI I/O registers (frame #1 and #0), triggering a
re-entrancy issue.
Fix by prohibit transactions from the DMA to devices. The DMA engine
is thus restricted to memories.
Reported-by: OSS-Fuzz (Issue 36391)
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/451
Message-Id: <20211215205656.488940-3-philmd@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
DMA transactions might fail. The DMA API returns a MemTxResult,
indicating such failures. Do not ignore it. On failure, raise
the ADMA error flag and eventually triggering an IRQ (see spec
chapter 1.13.5: "ADMA2 States").
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20211215205656.488940-2-philmd@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
More than 1k of TypeInfo instances are already marked as const. Mark the
remaining ones, too.
This commit was created with:
git grep -z -l 'static TypeInfo' -- '*.c' | \
xargs -0 sed -i 's/static TypeInfo/static const TypeInfo/'
Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Acked-by: Corey Minyard <cminyard@mvista.com>
Message-id: 20220117145805.173070-2-shentey@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
In SPI-mode, SD card's OCR register: Card Capacity Status (CCS) bit
is not set to 1 correclty when the assigned SD image size is larger
than 2GB (SDHC). This will cause the SD card to be indentified as SDSC
incorrectly. CCS bit should be set to 1 if we are using SDHC.
Also, as there's no power up emulation in SPI-mode.
The OCR register: Card power up status bit bit (busy) should also
be set to 1 when reset. (busy bit is set to LOW if the card has not
finished the power up routine.)
Signed-off-by: Frank Chang <frank.chang@sifive.com>
Reviewed-by: Jim Shu <jim.shu@sifive.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20211228125719.14712-1-frank.chang@sifive.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
'wp_groups' holds a bitmap, rename it as 'wp_group_bmap'.
'wpgrps_size' is the bitmap size (in bits), rename it as
'wp_group_bits'.
Patch created mechanically using:
$ sed -i -e s/wp_groups/wp_group_bmap/ \
-e s/wpgrps_size/wp_group_bits/ hw/sd/sd.c
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20210728181728.2012952-4-f4bug@amsat.org>
Reviewed-by: Alexander Bulekov <alxndr@bu.edu>
ssi_sd_realize() creates an "sd-card" device. This is inappropriate,
and marked FIXME.
Move it to the boards that create these devices. Prior art: commit
eb4f566bbb for device "generic-sdhci", and commit 26c607b86b for
device "pl181".
The device remains not user-creatable, because its users should (and
do) wire up its GPIO chip-select line.
Cc: Peter Maydell <peter.maydell@linaro.org>
Cc: Alistair Francis <Alistair.Francis@wdc.com>
Cc: Bin Meng <bin.meng@windriver.com>
Cc: Palmer Dabbelt <palmer@dabbelt.com>
Cc: "Philippe Mathieu-Daudé" <f4bug@amsat.org>
Cc: qemu-arm@nongnu.org
Cc: qemu-riscv@nongnu.org
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20211117163409.3587705-2-armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Francisco Iglesias <frasse.iglesias@gmail.com>
Message-Id: <20211018132609.160008-6-clg@kaod.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Rename qbus_create_inplace() to qbus_init(); this is more in line
with our usual naming convention for functions that in-place
initialize objects.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Message-id: 20210923121153.23754-5-peter.maydell@linaro.org
OSS-Fuzz found sending illegal addresses when querying the write
protection bits triggers the assertion added in commit 84816fb63e
("hw/sd/sdcard: Assert if accessing an illegal group"):
qemu-fuzz-i386-target-generic-fuzz-sdhci-v3: ../hw/sd/sd.c:824: uint32_t sd_wpbits(SDState *, uint64_t):
Assertion `wpnum < sd->wpgrps_size' failed.
#3 0x7f62a8b22c91 in __assert_fail
#4 0x5569adcec405 in sd_wpbits hw/sd/sd.c:824:9
#5 0x5569adce5f6d in sd_normal_command hw/sd/sd.c:1389:38
#6 0x5569adce3870 in sd_do_command hw/sd/sd.c:1737:17
#7 0x5569adcf1566 in sdbus_do_command hw/sd/core.c💯16
#8 0x5569adcfc192 in sdhci_send_command hw/sd/sdhci.c:337:12
#9 0x5569adcfa3a3 in sdhci_write hw/sd/sdhci.c:1186:9
#10 0x5569adfb3447 in memory_region_write_accessor softmmu/memory.c:492:5
It is legal for the CMD30 to query for out-of-range addresses.
Such invalid addresses are simply ignored in the response (write
protection bits set to 0).
In commit 84816fb63e ("hw/sd/sdcard: Assert if accessing an illegal
group") we misplaced the assertion *before* we test the address is
in range. Move it *after*.
Include the qtest reproducer provided by Alexander Bulekov:
$ make check-qtest-i386
...
Running test qtest-i386/fuzz-sdcard-test
qemu-system-i386: ../hw/sd/sd.c:824: sd_wpbits: Assertion `wpnum < sd->wpgrps_size' failed.
Cc: qemu-stable@nongnu.org
Reported-by: OSS-Fuzz (Issue 29225)
Suggested-by: Peter Maydell <peter.maydell@linaro.org>
Fixes: 84816fb63e ("hw/sd/sdcard: Assert if accessing an illegal group")
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/495
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20210802235524.3417739-3-f4bug@amsat.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Tested-by: Alexander Bulekov <alxndr@bu.edu>
Per the 'Physical Layer Simplified Specification Version 3.01',
Table 4-22: 'Block Oriented Write Protection Commands'
SEND_WRITE_PROT (CMD30)
If the card provides write protection features, this command asks
the card to send the status of the write protection bits [1].
[1] 32 write protection bits (representing 32 write protect groups
starting at the specified address) [...]
The last (least significant) bit of the protection bits corresponds
to the first addressed group. If the addresses of the last groups
are outside the valid range, then the corresponding write protection
bits shall be set to 0.
Split the if() statement (without changing the behaviour of the code)
to better position the description comment.
Reviewed-by: Alexander Bulekov <alxndr@bu.edu>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20210802235524.3417739-2-f4bug@amsat.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Tested-by: Alexander Bulekov <alxndr@bu.edu>
OSS-Fuzz found sending illegal addresses when querying the write
protection bits triggers an assertion:
qemu-fuzz-i386: hw/sd/sd.c:824: uint32_t sd_wpbits(SDState *, uint64_t): Assertion `wpnum < sd->wpgrps_size' failed.
==11578== ERROR: libFuzzer: deadly signal
#8 0x7ffff628e091 in __assert_fail
#9 0x5555588f1a3c in sd_wpbits hw/sd/sd.c:824:9
#10 0x5555588dd271 in sd_normal_command hw/sd/sd.c:1383:38
#11 0x5555588d777c in sd_do_command hw/sd/sd.c
#12 0x555558cb25a0 in sdbus_do_command hw/sd/core.c💯16
#13 0x555558e02a9a in sdhci_send_command hw/sd/sdhci.c:337:12
#14 0x555558dffa46 in sdhci_write hw/sd/sdhci.c:1187:9
#15 0x5555598b9d76 in memory_region_write_accessor softmmu/memory.c:489:5
Similarly to commit 8573378e62 ("hw/sd: fix out-of-bounds check
for multi block reads"), check the address range before sending
the status of the write protection bits.
Include the qtest reproducer provided by Alexander Bulekov:
$ make check-qtest-i386
...
Running test qtest-i386/fuzz-sdcard-test
qemu-system-i386: ../hw/sd/sd.c:824: sd_wpbits: Assertion `wpnum < sd->wpgrps_size' failed.
Reported-by: OSS-Fuzz (Issue 29225)
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/450
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Alexander Bulekov <alxndr@bu.edu>
Message-Id: <20210702155900.148665-4-f4bug@amsat.org>
Multiple commands have to check the address requested is valid.
Extract this code pattern as a new address_in_range() helper, and
log invalid accesses as guest errors.
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Message-Id: <20210624142209.1193073-3-f4bug@amsat.org>
