Commit Graph

206 Commits

Author SHA1 Message Date
Philippe Mathieu-Daudé 3dc5d349a3 hw/sd/sdcard: Fix typo in SEND_OP_COND command name
There is no SEND_OP_CMD but SEND_OP_COND.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Tested-by: Cédric Le Goater <clg@redhat.com>
Message-Id: <20240621080554.18986-4-philmd@linaro.org>
2024-06-24 10:41:42 +02:00
Philippe Mathieu-Daudé d00e614f61 hw/sd/sdcard: Rewrite sd_cmd_ALL_SEND_CID using switch case (CMD2)
Keep this handler style in sync with other handlers by
using a switch() case, which might become handy to
handle other states.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Tested-by: Cédric Le Goater <clg@redhat.com>
Message-Id: <20240621080554.18986-3-philmd@linaro.org>
2024-06-24 10:41:42 +02:00
Philippe Mathieu-Daudé 8d380565ad hw/sd/sdcard: Correct code indentation
Fix mis-alignment from commits 793d04f495 and 6380cd2052
("Add sd_cmd_SEND_TUNING_BLOCK" and "Add sd_cmd_SET_BLOCK_COUNT").

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Tested-by: Cédric Le Goater <clg@redhat.com>
Message-Id: <20240621080554.18986-2-philmd@linaro.org>
2024-06-24 10:41:42 +02:00
Philippe Mathieu-Daudé c2e857b4ca hw/sd/sdcard: Avoid OOB in sd_read_byte() during unexpected CMD switch
For multi-bytes commands, our implementation uses the @data_start
and @data_offset fields to track byte access. We initialize the
command start/offset in buffer once. Malicious guest might abuse
by switching command while staying in the 'transfer' state, switching
command buffer size, and our implementation can access out of buffer
boundary. For example, CMD17 (READ_SINGLE_BLOCK) allows to read up to
512 bytes, and CMD13 (SEND_STATUS) up to 64 bytes. By switching from
CMD17 to CMD13 (see reproducer below), bytes [64-511] are out of the
'status' buffer.

Our implementation return R0 status code for unexpected commands.
Such in-transaction command switch is unexpected and returns R0.
This is a good place to reset the start/offset fields to avoid
malicious accesses.

Can be reproduced running:

  $ export UBSAN_OPTIONS=print_stacktrace=1:halt_on_error=1
  $ cat << EOF | qemu-system-i386 \
                     -display none -nographic \
                     -machine accel=qtest -m 512M \
                     -nodefaults \
                     -device sdhci-pci,sd-spec-version=3 \
                     -device sd-card,drive=mydrive \
                     -drive if=none,index=0,file=null-co://,format=raw,id=mydrive \
                     -qtest stdio -trace sd\* -trace -sdbus_read
  outl 0xcf8 0x80001010
  outl 0xcfc 0xe0000000
  outl 0xcf8 0x80001004
  outw 0xcfc 0x02
  write 0xe000002c 0x1 0x05
  write 0xe000000f 0x1 0x37
  write 0xe000000a 0x1 0x01
  write 0xe000000f 0x1 0x29
  write 0xe000000f 0x1 0x02
  write 0xe000000f 0x1 0x03
  write 0xe000000c 0x1 0x32
  write 0xe000000f 0x1 0x06
  write 0xe0000005 0x1 0x01
  write 0xe0000007 0x1 0x01
  write 0xe0000003 0x1 0x00
  write 0xe000000f 0x1 0x11
  write 0xe000002a 0x1 0x01
  write 0xe000002a 0x1 0x02
  write 0xe000000f 0x1 0x0d
  write 0xe000002a 0x1 0x01
  write 0xe000002a 0x1 0x02
  EOF
  hw/sd/sd.c:1984:15: runtime error: index 256 out of bounds for type 'uint8_t [64]'
  #0 sd_read_byte hw/sd/sd.c:1984:15
  #1 sdbus_read_data hw/sd/core.c:157:23
  #2 sdhci_read_block_from_card hw/sd/sdhci.c:423:9
  #3 sdhci_blkgap_write hw/sd/sdhci.c:1074:13
  #4 sdhci_write hw/sd/sdhci.c:1195:13
  #5 memory_region_write_accessor softmmu/memory.c:492:5
  #6 access_with_adjusted_size softmmu/memory.c:554:18
  #7 memory_region_dispatch_write softmmu/memory.c
  #8 flatview_write_continue softmmu/physmem.c:2778:23
  #9 flatview_write softmmu/physmem.c:2818:14
  #10 address_space_write softmmu/physmem.c:2910:18
  SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior hw/sd/sd.c:1984:15

Reported-by: Alexander Bulekov <alxndr@bu.edu>
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/487
Buglink: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=36240
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20240408141717.66154-2-philmd@linaro.org>
2024-06-24 10:41:29 +02:00
Richard Henderson 307119ba50 hw/sd: Constify VMState
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>
2023-12-30 07:38:06 +11:00
Philippe Mathieu-Daudé 88d2198c08 hw/sd: Declare QOM types using DEFINE_TYPES() macro
When multiple QOM types are registered in the same file,
it is simpler to use the the DEFINE_TYPES() macro. In
particular because type array declared with such macro
are easier to review.

Mechanical transformation using the following comby script:

  [pattern-x1]
  match='''
  static const TypeInfo :[i1~.*_info] = {
      :[body]
  };
  static void :[rt1~.*_register_type.](void)
  {
      type_register_static(&:[i2~.*_info]);
  }
  type_init(:[rt2~.*_register_type.])
  '''
  rewrite='''
  static const TypeInfo :[i1][] = {
      {
      :[body]
      },
  };

  DEFINE_TYPES(:[i1])
  '''
  rule='where :[i1] == :[i2], :[rt1] == :[rt2]'

  [pattern-x2]
  match='''
  static const TypeInfo :[i1a~.*_info] = {
      :[body1]
  };
  ...
  static const TypeInfo :[i2a~.*_info] = {
      :[body2]
  };
  static void :[rt1~.*_register_type.](void)
  {
      type_register_static(&:[i1b~.*_info]);
      type_register_static(&:[i2b~.*_info]);
  }
  type_init(:[rt2~.*_register_type.])
  '''
  rewrite='''
  static const TypeInfo :[i1a][] = {
      {
      :[body1]
      },
      {
      :[body2]
      },
  };

  DEFINE_TYPES(:[i1a])
  '''
  rule='''
  where
  :[i1a] == :[i1b],
  :[i2a] == :[i2b],
  :[rt1] == :[rt2]
  '''

and re-indented manually.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20231031080603.86889-2-philmd@linaro.org>
2023-11-07 13:08:49 +01:00
Stefan Hajnoczi 912a9efd6b 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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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: Signature made Fri 01 Sep 2023 05:40:52 EDT
# gpg:                using RSA key A0F66548F04895EBFE6B0B6051A343C7CFFBECA1
# gpg: Good signature from "Cédric Le Goater <clg@redhat.com>" [unknown]
# 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>
2023-09-06 11:14:55 -04:00
Cédric Le Goater c3287c0f70 hw/sd: Introduce a "sd-card" SPI variant model
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>
2023-09-01 11:40:04 +02:00
Philippe Mathieu-Daudé 6380cd2052 hw/sd: Add sd_cmd_SET_BLOCK_COUNT() handler
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2023-09-01 11:40:04 +02:00
Joel Stanley 793d04f495 hw/sd: Add sd_cmd_SEND_TUNING_BLOCK() handler
Signed-off-by: Joel Stanley <joel@jms.id.au>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2023-09-01 11:40:04 +02:00
Philippe Mathieu-Daudé 41a0349d3c hw/sd: Add sd_cmd_SEND_RELATIVE_ADDR() handler
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>
2023-09-01 11:40:04 +02:00
Philippe Mathieu-Daudé c4f2d9e150 hw/sd: Add sd_cmd_ALL_SEND_CID() handler
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>
2023-09-01 11:40:04 +02:00
Philippe Mathieu-Daudé 5c44e82009 hw/sd: Add sd_cmd_SEND_OP_CMD() handler
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
[ clg: Update cmd_abbrev ]
Message-Id: <20210624142209.1193073-9-f4bug@amsat.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2023-09-01 11:40:04 +02:00
Philippe Mathieu-Daudé a6e0f67e77 hw/sd: Add sd_cmd_GO_IDLE_STATE() handler
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>
2023-09-01 11:40:04 +02:00
Philippe Mathieu-Daudé 7ffcbf3e58 hw/sd: Add sd_cmd_unimplemented() handler
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
[ clg: Fix redundant assignment of .cmd ]
Message-Id: <20210624142209.1193073-7-f4bug@amsat.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2023-09-01 11:40:04 +02:00
Philippe Mathieu-Daudé 583204d824 hw/sd: Add sd_cmd_illegal() handler
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>
2023-09-01 11:40:04 +02:00
Philippe Mathieu-Daudé 46859b6078 hw/sd: Introduce sd_cmd_handler type
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>
2023-09-01 11:40:04 +02:00
Philippe Mathieu-Daudé 1b4a234278 hw/sd: Move proto_name to SDProto structure
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>
2023-09-01 11:40:04 +02:00
Philippe Mathieu-Daudé 94ef3041d2 hw/sd: When card is in wrong state, log which spec version is used
Add the sd_version_str() helper.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2023-09-01 11:40:04 +02:00
Philippe Mathieu-Daudé 132011396f hw/sd: When card is in wrong state, log which state it is
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>
2023-09-01 11:40:04 +02:00
Philippe Mathieu-Daudé 24965082a7 hw/sd/sdcard: Return ILLEGAL for CMD19/CMD23 prior SD spec v3.01
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>
2023-09-01 11:40:04 +02:00
Michael Tokarev b8d099825b hw/sd: spelling fixes
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>
2023-08-31 19:47:43 +02:00
Yeqi Fu 48805df9c2 replace TABs with spaces
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>
2023-03-20 12:43:50 +01:00
Alberto Faria a9262f551e block: Change blk_{pread,pwrite}() param order
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>
2022-07-12 12:14:56 +02:00
Alberto Faria 3b35d4542c block: Add a 'flags' param to blk_pread()
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>
2022-07-12 12:14:56 +02:00
Marc-André Lureau 0f9668e0c1 Remove qemu-common.h include from most units
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20220323155743.1585078-33-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-04-06 14:31:55 +02:00
Frank Chang b66f73a0cb hw/sd: Add SDHC support for SD card SPI-mode
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>
2022-01-04 08:50:28 +01:00
Philippe Mathieu-Daudé 6947feca58 hw/sd/sdcard: Rename Write Protect Group variables
'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>
2022-01-04 08:50:27 +01:00
Philippe Mathieu-Daudé 4ac0b72bae hw/sd/sdcard: Fix assertion accessing out-of-range addresses with CMD30
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>
2021-08-03 19:34:51 +02:00
Philippe Mathieu-Daudé 2a0396285d hw/sd/sdcard: Document out-of-range addresses for SEND_WRITE_PROT
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>
2021-08-03 19:34:00 +02:00
Philippe Mathieu-Daudé 59b63d78be hw/sd/sdcard: Check for valid address range in SEND_WRITE_PROT (CMD30)
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>
2021-07-12 12:27:38 +02:00
Philippe Mathieu-Daudé 66c152d7b4 hw/sd/sdcard: Extract address_in_range() helper, log invalid accesses
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>
2021-07-12 12:27:38 +02:00
Philippe Mathieu-Daudé c60b292106 hw/sd/sdcard: When card is in wrong state, log which state it is
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.

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>
Reviewed-by: Alexander Bulekov <alxndr@bu.edu>
2021-07-12 12:27:38 +02:00
Bin Meng 818a5cdcfc hw/sd: sd: Actually perform the erase operation
At present the sd_erase() does not erase the requested range of card
data to 0xFFs. Let's make the erase operation actually happen.

Signed-off-by: Bin Meng <bin.meng@windriver.com>
Message-Id: <1613811493-58815-1-git-send-email-bmeng.cn@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2021-03-22 15:34:29 +01:00
Bin Meng a78d9f27b7 hw/sd: sd: Fix build error when DEBUG_SD is on
"qemu-common.h" should be included to provide the forward declaration
of qemu_hexdump() when DEBUG_SD is on.

Signed-off-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20210228050609.24779-1-bmeng.cn@gmail.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2021-03-22 15:34:29 +01:00
Bin Meng c557e08d9c hw/sd: sd: Bypass the RCA check for CMD13 in SPI mode
Unlike SD mode, when SD card is working in SPI mode, the argument
of CMD13 is stuff bits. Hence we should bypass the RCA check.

See "Physical Layer Specification Version 8.00", chapter 7.3.1.3
Detailed Command Description (SPI mode):

  "The card shall ignore stuff bits and reserved bits in an argument"

and Table 7-3 Commands and Arguments (SPI mode):

  "CMD13 Argument [31:0] stuff bits"

Signed-off-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20210216150225.27996-9-bmeng.cn@gmail.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2021-02-20 00:17:09 +01:00
Bin Meng 19fa6c9e9b hw/sd: sd: Skip write protect groups check in CMD24/25 for high capacity cards
High capacity cards don't support write protection hence we should
not perform the write protect groups check in CMD24/25 for them.

Signed-off-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20210216150225.27996-8-bmeng.cn@gmail.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2021-02-20 00:17:09 +01:00
Bin Meng 2473dc4022 hw/sd: sd: Skip write protect groups check in sd_erase() for high capacity cards
High capacity cards don't support write protection hence we should
not perform the write protect groups check in sd_erase() for them.

Signed-off-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20210216150225.27996-6-bmeng.cn@gmail.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2021-02-20 00:17:09 +01:00
Bin Meng ce6ea2efc5 hw/sd: sd: Move the sd_block_{read, write} and macros ahead
These APIs and macros may be referenced by functions that are
currently before them. Move them ahead a little bit.

Signed-off-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20210216150225.27996-5-bmeng.cn@gmail.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2021-02-20 00:17:09 +01:00
Bin Meng 69694973a8 hw/sd: sd: Fix CMD30 response type
Per the "Physical Layer Specification Version 8.00", table 4-26
(SD mode) and table 7-3 (SPI mode) command descriptions, CMD30
response type is R1, not R1b.

Fixes: a1bb27b1e9 ("SD card emulation initial implementation")
Signed-off-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20210216150225.27996-4-bmeng.cn@gmail.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2021-02-20 00:17:09 +01:00
Bin Meng 245c05134f hw/sd: sd: Only SDSC cards support CMD28/29/30
Per the "Physical Layer Specification Version 8.00", table 4-26
(SD mode) and table 7-3 (SPI mode) command descriptions, the
following commands:

- CMD28 (SET_WRITE_PROT)
- CMD29 (CLR_WRITE_PROT)
- CMD30 (SEND_WRITE_PROT)

are only supported by SDSC cards.

Signed-off-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20210216150225.27996-3-bmeng.cn@gmail.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2021-02-20 00:17:09 +01:00
Bin Meng 64ea2d9f74 hw/sd: sd: Fix address check in sd_erase()
For high capacity memory cards, the erase start address and end
address are multiplied by 512, but the address check is still
based on the original block number in sd->erase_{start, end}.

Fixes: 1bd6fd8ed5 ("hw/sd/sdcard: Do not attempt to erase out of range addresses")
Signed-off-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20210216150225.27996-2-bmeng.cn@gmail.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2021-02-20 00:17:09 +01:00
Bin Meng 995731d3f7 hw/sd: Introduce receive_ready() callback
At present there is a data_ready() callback for the SD data read
path. Let's add a receive_ready() for the SD data write path.

Signed-off-by: Bin Meng <bin.meng@windriver.com>
Tested-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20210128063035.15674-5-bmeng.cn@gmail.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2021-02-20 00:17:09 +01:00
Bin Meng eedb7f249c hw/sd: sd: Allow single/multiple block write for SPI mode
At present the single/multiple block write in SPI mode is blocked
by sd_normal_command(). Remove the limitation.

Signed-off-by: Bin Meng <bin.meng@windriver.com>
Tested-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20210128063035.15674-4-bmeng.cn@gmail.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2021-02-20 00:17:09 +01:00
Bin Meng cdf6701bcc hw/sd: sd: Remove duplicated codes in single/multiple block read/write
The single block read (CMD17) codes are the same as the multiple
block read (CMD18). Merge them into one. The same applies to single
block write (CMD24) and multiple block write (CMD25).

Signed-off-by: Bin Meng <bin.meng@windriver.com>
Tested-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20210128063035.15674-3-bmeng.cn@gmail.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2021-02-20 00:17:09 +01:00
Kevin Wolf 86b1cf3227 block: Separate blk_is_writable() and blk_supports_write_perm()
Currently, blk_is_read_only() tells whether a given BlockBackend can
only be used in read-only mode because its root node is read-only. Some
callers actually try to answer a slightly different question: Is the
BlockBackend configured to be writable, by taking write permissions on
the root node?

This can differ, for example, for CD-ROM devices which don't take write
permissions, but may be backed by a writable image file. scsi-cd allows
write requests to the drive if blk_is_read_only() returns false.
However, the write request will immediately run into an assertion
failure because the write permission is missing.

This patch introduces separate functions for both questions.
blk_supports_write_perm() answers the question whether the block
node/image file can support writable devices, whereas blk_is_writable()
tells whether the BlockBackend is currently configured to be writable.

All calls of blk_is_read_only() are converted to one of the two new
functions.

Fixes: https://bugs.launchpad.net/bugs/1906693
Cc: qemu-stable@nongnu.org
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20210118123448.307825-2-kwolf@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2021-01-27 20:45:20 +01:00
Bin Meng e9d28020d2 hw/sd: sd: Drop sd_crc16()
commit f6fb1f9b31 ("sdcard: Correct CRC16 offset in sd_function_switch()")
changed the 16-bit CRC to be stored at offset 64. In fact, this CRC
calculation is completely wrong. From the original codes, it wants
to calculate the CRC16 of the first 64 bytes of sd->data[], however
passing 64 as the `width` to sd_crc16() actually counts 256 bytes
starting from the `message` for the CRC16 calculation, which is not
what we want.

Besides that, it seems existing sd_crc16() algorithm does not match
the SD spec, which says CRC16 is the CCITT one but the calculation
does not produce expected result. It turns out the CRC16 was never
transferred outside the sd core, as in sd_read_byte() we see:

    if (sd->data_offset >= 64)
        sd->state = sd_transfer_state;

Given above reasons, let's drop it.

Signed-off-by: Bin Meng <bin.meng@windriver.com>
Tested-by: Pragnesh Patel <pragnesh.patel@sifive.com>
Reviewed-by: Pragnesh Patel <pragnesh.patel@sifive.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20210123104016.17485-6-bmeng.cn@gmail.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2021-01-24 19:14:15 +01:00
Bin Meng dec6d33849 hw/sd: sd: Support CMD59 for SPI mode
After the card is put into SPI mode, CRC check for all commands
including CMD0 will be done according to CMD59 setting. But this
command is currently unimplemented. Simply allow the decoding of
CMD59, but the CRC remains unchecked.

Signed-off-by: Bin Meng <bin.meng@windriver.com>
Tested-by: Pragnesh Patel <pragnesh.patel@sifive.com>
Reviewed-by: Pragnesh Patel <pragnesh.patel@sifive.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20210123104016.17485-5-bmeng.cn@gmail.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2021-01-24 18:53:25 +01:00
Peter Maydell 729cc68373 Remove superfluous timer_del() calls
This commit is the result of running the timer-del-timer-free.cocci
script on the whole source tree.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Acked-by: Corey Minyard <cminyard@mvista.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20201215154107.3255-4-peter.maydell@linaro.org
2021-01-08 15:13:38 +00:00
Eduardo Habkost ce35e2295e qdev: Move softmmu properties to qdev-properties-system.h
Move the property types and property macros implemented in
qdev-properties-system.c to a new qdev-properties-system.h
header.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <20201211220529.2290218-16-ehabkost@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2020-12-18 15:20:17 -05:00
Bin Meng 575094b786 hw/sd: Fix 2 GiB card CSD register values
Per the SD spec, to indicate a 2 GiB card, BLOCK_LEN shall be 1024
bytes, hence the READ_BL_LEN field in the CSD register shall be 10
instead of 9.

This fixes the acceptance test error for the NetBSD 9.0 test of the
Orange Pi PC that has an expanded SD card image of 2 GiB size.

Fixes: 6d2d4069c4 ("hw/sd: Correct the maximum size of a Standard Capacity SD Memory Card")
Reported-by: Niek Linnenbank <nieklinnenbank@gmail.com>
Signed-off-by: Bin Meng <bin.meng@windriver.com>
Tested-by: Niek Linnenbank <nieklinnenbank@gmail.com>
Message-Id: <20201025152357.11865-1-bmeng.cn@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2020-11-17 11:45:13 +01:00
Bin Meng 89c6700fe7 hw/sd/sdcard: Zero out function selection fields before being populated
The function selection fields (399:376) should be zeroed out to
prevent leftover from being or'ed into the switch function status
data structure.

This fixes the boot failure as seen in the acceptance testing on
the orangepi target.

Fixes: b638627c72 ("hw/sd: Fix incorrect populated function switch status data structure")
Reported-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20201024014954.21330-1-bmeng.cn@gmail.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2020-10-26 09:23:47 +01:00
Philippe Mathieu-Daudé 692fb0ef31 hw/sd/sdcard: Make iolen unsigned
I/O request length can not be negative.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20200630133912.9428-15-f4bug@amsat.org>
2020-10-26 00:36:52 +01:00
Philippe Mathieu-Daudé aecaa05922 hw/sd/sdcard: Constify sd_crc*()'s message argument
CRC functions don't modify the buffer argument,
make it const.

Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20200630133912.9428-14-f4bug@amsat.org>
2020-10-26 00:36:52 +01:00
Philippe Mathieu-Daudé ef6dd5f5c4 hw/sd/sdcard: Simplify cmd_valid_while_locked()
cmd_valid_while_locked() only needs to read SDRequest->cmd,
pass it directly and make it const.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20200630133912.9428-13-f4bug@amsat.org>
2020-10-26 00:36:52 +01:00
Philippe Mathieu-Daudé 9820502cad hw/sd/sdcard: Update the SDState documentation
Add more descriptive comments to keep a clear separation
between static property vs runtime changeable.

Suggested-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20200630133912.9428-12-f4bug@amsat.org>
2020-10-26 00:36:52 +01:00
Philippe Mathieu-Daudé 84816fb63e hw/sd/sdcard: Assert if accessing an illegal group
We can not have more group than 'wpgrps_size'.
Assert if we are accessing a group above this limit.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: Alexander Bulekov <alxndr@bu.edu>
Message-Id: <20201015063824.212980-7-f4bug@amsat.org>
2020-10-21 13:34:27 +02:00
Philippe Mathieu-Daudé 1bd6fd8ed5 hw/sd/sdcard: Do not attempt to erase out of range addresses
While the Spec v3 is not very clear, v6 states:

  If the host provides an out of range address as an argument
  to CMD32 or CMD33, the card shall indicate OUT_OF_RANGE error
  in R1 (ERX) for CMD38.

If an address is out of range, do not attempt to erase it:
return R1 with the error bit set.

Buglink: https://bugs.launchpad.net/qemu/+bug/1895310
Reported-by: Alexander Bulekov <alxndr@bu.edu>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: Alexander Bulekov <alxndr@bu.edu>
Message-Id: <20201015063824.212980-6-f4bug@amsat.org>
2020-10-21 13:34:04 +02:00
Philippe Mathieu-Daudé c8c8b3f1c1 hw/sd/sdcard: Reset both start/end addresses on error
From the Spec "4.3.5 Erase":

  The host should adhere to the following command
  sequence: ERASE_WR_BLK_START, ERASE_WR_BLK_END and
  ERASE (CMD38).

  If an erase (CMD38) or address setting (CMD32, 33)
  command is received out of sequence, the card shall
  set the ERASE_SEQ_ERROR bit in the status register
  and reset the whole sequence.

Reset both addresses if the ERASE command occured
out of sequence (one of the start/end address is
not set).

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: Alexander Bulekov <alxndr@bu.edu>
Message-Id: <20201015063824.212980-5-f4bug@amsat.org>
2020-10-21 13:19:02 +02:00
Philippe Mathieu-Daudé 7dae0a1dd1 hw/sd/sdcard: Do not use legal address '0' for INVALID_ADDRESS
As it is legal to WRITE/ERASE the address/block 0,
change the value of this definition to an illegal
address: UINT32_MAX.

Unfortunately this break the migration stream, so
bump the VMState version number. This affects some
ARM boards and the SDHCI_PCI device (which is only
used for testing).

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: Alexander Bulekov <alxndr@bu.edu>
Message-Id: <20201015063824.212980-4-f4bug@amsat.org>
2020-10-21 13:19:02 +02:00
Philippe Mathieu-Daudé 872b8fde6c hw/sd/sdcard: Introduce the INVALID_ADDRESS definition
'0' is used as a value to indicate an invalid (or unset)
address. Use a definition instead of a magic value.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: Alexander Bulekov <alxndr@bu.edu>
Message-Id: <20201015063824.212980-3-f4bug@amsat.org>
2020-10-21 13:19:02 +02:00
Philippe Mathieu-Daudé aafe6c5836 hw/sd/sdcard: Add trace event for ERASE command (CMD38)
Trace addresses provided to the ERASE command.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: Alexander Bulekov <alxndr@bu.edu>
Message-Id: <20201015063824.212980-2-f4bug@amsat.org>
2020-10-21 13:19:02 +02:00
Philippe Mathieu-Daudé b42581f5bb util/hexdump: Reorder qemu_hexdump() arguments
qemu_hexdump()'s pointer to the buffer and length of the
buffer are closely related arguments but are widely separated
in the argument list order (also, the format of <stdio.h>
function prototypes is usually to have the FILE* argument
coming first).

Reorder the arguments as "fp, prefix, buf, size" which is
more logical.

Suggested-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Message-Id: <20200822180950.1343963-3-f4bug@amsat.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2020-09-11 21:25:59 +02:00
Philippe Mathieu-Daudé 67263b33af util/hexdump: Convert to take a void pointer argument
Most uses of qemu_hexdump() do not take an array of char
as input, forcing use of cast. Since we can use this
helper to dump any kind of buffer, use a pointer to void
argument instead.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Li Qiang <liq3ea@gmail.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Message-Id: <20200822180950.1343963-2-f4bug@amsat.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2020-09-11 21:25:59 +02:00
Bin Meng 6d2d4069c4 hw/sd: Correct the maximum size of a Standard Capacity SD Memory Card
Per the SD spec, Standard Capacity SD Memory Card (SDSC) supports
capacity up to and including 2 GiB.

Fixes: 2d7adea4fe ("hw/sd: Support SDHC size cards")
Signed-off-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: Sai Pavan Boddu <sai.pavan.boddu@xilinx.com>
Message-Id: <1598021136-49525-2-git-send-email-bmeng.cn@gmail.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2020-08-21 16:49:22 +02:00
Bin Meng b638627c72 hw/sd: Fix incorrect populated function switch status data structure
At present the function switch status data structure bit [399:376]
are wrongly pupulated. These 3 bytes encode function switch status
for the 6 function groups, with 4 bits per group, starting from
function group 6 at bit 399, then followed by function group 5 at
bit 395, and so on.

However the codes mistakenly fills in the function group 1 status
at bit 399. This fixes the code logic.

Fixes: a1bb27b1e9 ("SD card emulation (initial implementation)")
Signed-off-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: Sai Pavan Boddu <sai.pavan.boddu@xilinx.com>
Message-Id: <1598021136-49525-1-git-send-email-bmeng.cn@gmail.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2020-08-21 16:49:07 +02:00
Philippe Mathieu-Daudé c769a88d44 hw/sd: Rename read/write_data() as read/write_byte()
The read/write_data() methods write do a single byte access
on the data line of a SD card. Rename them as read/write_byte().
Add some documentation (not in "hw/sd/sdcard_legacy.h" which we
are going to remove soon).

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20200814092346.21825-2-f4bug@amsat.org>
2020-08-21 16:35:35 +02:00
Philippe Mathieu-Daudé 9006f1e706 hw/sd: Move sdcard legacy API to 'hw/sd/sdcard_legacy.h'
omap_mmc.c is the last device left using the legacy sdcard API.
Move the prototype declarations into a separate header, to
make it clear this is a legacy API.

Reviewed-by: Alistair Francis <alistair.francis@xilinx.com>
Message-Id: <20180216022933.10945-8-f4bug@amsat.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Acked-by: Peter Maydell <peter.maydell@linaro.org>
2020-08-21 16:23:21 +02:00
Philippe Mathieu-Daudé 38626a3314 hw/sd/sdcard: Make sd_data_ready() static
sd_data_ready() belongs to the legacy API. As its last user has
been converted to the SDBus API, make it static.

Reviewed-by: Alistair Francis <alistair.francis@xilinx.com>
Message-Id: <20180216022933.10945-7-f4bug@amsat.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Acked-by: Peter Maydell <peter.maydell@linaro.org>
2020-08-21 16:23:15 +02:00
Philippe Mathieu-Daudé 790762e548 hw/sd/sdcard: Do not switch to ReceivingData if address is invalid
Only move the state machine to ReceivingData if there is no
pending error. This avoids later OOB access while processing
commands queued.

  "SD Specifications Part 1 Physical Layer Simplified Spec. v3.01"

  4.3.3 Data Read

  Read command is rejected if BLOCK_LEN_ERROR or ADDRESS_ERROR
  occurred and no data transfer is performed.

  4.3.4 Data Write

  Write command is rejected if BLOCK_LEN_ERROR or ADDRESS_ERROR
  occurred and no data transfer is performed.

WP_VIOLATION errors are not modified: the error bit is set, we
stay in receive-data state, wait for a stop command. All further
data transfer is ignored. See the check on sd->card_status at the
beginning of sd_read_data() and sd_write_data().

Fixes: CVE-2020-13253
Cc: qemu-stable@nongnu.org
Reported-by: Alexander Bulekov <alxndr@bu.edu>
Buglink: https://bugs.launchpad.net/qemu/+bug/1880822
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20200630133912.9428-6-f4bug@amsat.org>
2020-07-14 15:46:14 +02:00
Philippe Mathieu-Daudé 794d68de2f hw/sd/sdcard: Update coding style to make checkpatch.pl happy
To make the next commit easier to review, clean this code first.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Alexander Bulekov <alxndr@bu.edu>
Message-Id: <20200630133912.9428-3-f4bug@amsat.org>
2020-07-14 15:46:14 +02:00
Philippe Mathieu-Daudé a9bcedd15a hw/sd/sdcard: Do not allow invalid SD card sizes
QEMU allows to create SD card with unrealistic sizes. This could
work, but some guests (at least Linux) consider sizes that are not
a power of 2 as a firmware bug and fix the card size to the next
power of 2.

While the possibility to use small SD card images has been seen as
a feature, it became a bug with CVE-2020-13253, where the guest is
able to do OOB read/write accesses past the image size end.

In a pair of commits we will fix CVE-2020-13253 as:

    Read command is rejected if BLOCK_LEN_ERROR or ADDRESS_ERROR
    occurred and no data transfer is performed.

    Write command is rejected if BLOCK_LEN_ERROR or ADDRESS_ERROR
    occurred and no data transfer is performed.

    WP_VIOLATION errors are not modified: the error bit is set, we
    stay in receive-data state, wait for a stop command. All further
    data transfer is ignored. See the check on sd->card_status at the
    beginning of sd_read_data() and sd_write_data().

While this is the correct behavior, in case QEMU create smaller SD
cards, guests still try to access past the image size end, and QEMU
considers this is an invalid address, thus "all further data transfer
is ignored". This is wrong and make the guest looping until
eventually timeouts.

Fix by not allowing invalid SD card sizes (suggesting the expected
size as a hint):

  $ qemu-system-arm -M orangepi-pc -drive file=rootfs.ext2,if=sd,format=raw
  qemu-system-arm: Invalid SD card size: 60 MiB
  SD card size has to be a power of 2, e.g. 64 MiB.
  You can resize disk images with 'qemu-img resize <imagefile> <new-size>'
  (note that this will lose data if you make the image smaller than it currently is).

Cc: qemu-stable@nongnu.org
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20200713183209.26308-8-f4bug@amsat.org>
2020-07-14 15:46:07 +02:00
Philippe Mathieu-Daudé 6dd3a164f5 hw/sd/sdcard: Simplify realize() a bit
We don't need to check if sd->blk is set twice.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20200630133912.9428-18-f4bug@amsat.org>
2020-07-14 15:46:07 +02:00
Philippe Mathieu-Daudé 9157dd597d hw/sd/sdcard: Restrict Class 6 commands to SCSD cards
Only SCSD cards support Class 6 (Block Oriented Write Protection)
commands.

  "SD Specifications Part 1 Physical Layer Simplified Spec. v3.01"

  4.3.14 Command Functional Difference in Card Capacity Types

  * Write Protected Group

  SDHC and SDXC do not support write-protected groups. Issuing
  CMD28, CMD29 and CMD30 generates the ILLEGAL_COMMAND error.

Cc: qemu-stable@nongnu.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20200630133912.9428-7-f4bug@amsat.org>
2020-07-14 15:45:58 +02:00
Markus Armbruster 0c0e618d23 qdev: Use returned bool to check for failure, Coccinelle part
The previous commit enables conversion of

    qdev_prop_set_drive_err(..., &err);
    if (err) {
    ...
    }

to

    if (!qdev_prop_set_drive_err(..., errp)) {
    ...
    }

Coccinelle script:

    @@
    identifier fun = qdev_prop_set_drive_err;
    expression list args;
    typedef Error;
    Error *err;
    @@
    -    fun(args, &err);
    -    if (err)
    +    if (!fun(args, &err))
         {
             ...
         }

One line break tidied up manually.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20200707160613.848843-33-armbru@redhat.com>
2020-07-10 15:18:08 +02:00
Markus Armbruster 934df91296 qdev: Make qdev_prop_set_drive() match the other helpers
qdev_prop_set_drive() can fail.  None of the other qdev_prop_set_FOO()
can; they abort on error.

To clean up this inconsistency, rename qdev_prop_set_drive() to
qdev_prop_set_drive_err(), and create a qdev_prop_set_drive() that
aborts on error.

Coccinelle script to update callers:

    @ depends on !(file in "hw/core/qdev-properties-system.c")@
    expression dev, name, value;
    symbol error_abort;
    @@
    -    qdev_prop_set_drive(dev, name, value, &error_abort);
    +    qdev_prop_set_drive(dev, name, value);

    @@
    expression dev, name, value, errp;
    @@
    -    qdev_prop_set_drive(dev, name, value, errp);
    +    qdev_prop_set_drive_err(dev, name, value, errp);

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20200622094227.1271650-14-armbru@redhat.com>
2020-06-23 16:07:07 +02:00
Markus Armbruster 007d1dbf72 sd: Hide the qdev-but-not-quite thing created by sd_init()
Commit 260bc9d8aa "hw/sd/sd.c: QOMify" QOMified only the device
itself, not its users.  It kept sd_init() around for non-QOMified
users.

More than four years later, three such users remain: omap1 (machines
cheetah, sx1, sx1-v1) and omap2 (machines n800, n810) are not
QOMified, and pl181 (machines integratorcp, realview-eb,
realview-eb-mpcore, realview-pb-a8 realview-pbx-a9, versatileab,
versatilepb, vexpress-a15, vexpress-a9) is not QOMified properly.

The issue I presently have with this: an "sd-card" device should plug
into an "sd-bus" (its DeviceClass member bus_type says so), but
sd_init() leaves it unplugged.  This is normally a bug (I just fixed
some instances), and I'd like to assert proper pluggedness to prevent
regressions.  However, the qdev-but-not-quite thing returned by
sd_init() would fail the assertion.  Meh.

Make sd_init() hide it from QOM/qdev.  Visible in "info qom-tree",
here's the change for cheetah:

     /machine (cheetah-machine)
       [...]
       /unattached (container)
         [...]
         /device[5] (serial-mm)
           /serial (serial)
           /serial[0] (qemu:memory-region)
    -    /device[6] (sd-card)
    -    /device[7] (omap-gpio)
    +    /device[6] (omap-gpio)
         [rest of device[*] renumbered...]

Cc: "Philippe Mathieu-Daudé" <philmd@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20200609122339.937862-24-armbru@redhat.com>
2020-06-15 21:36:30 +02:00
Markus Armbruster 5217f1887a error: Use error_reportf_err() where appropriate
Replace

    error_report("...: %s", ..., error_get_pretty(err));

by

    error_reportf_err(err, "...: ", ...);

One of the replaced messages lacked a colon.  Add it.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20200505101908.6207-6-armbru@redhat.com>
2020-05-27 07:45:30 +02:00
Marc-André Lureau 4f67d30b5e qdev: set properties with device_class_set_props()
The following patch will need to handle properties registration during
class_init time. Let's use a device_class_set_props() setter.

spatch --macro-file scripts/cocci-macro-file.h  --sp-file
./scripts/coccinelle/qdev-set-props.cocci --keep-comments --in-place
--dir .

@@
typedef DeviceClass;
DeviceClass *d;
expression val;
@@
- d->props = val
+ device_class_set_props(d, val)

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20200110153039.1379601-20-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-01-24 20:59:15 +01:00
Markus Armbruster a27bd6c779 Include hw/qdev-properties.h less
In my "build everything" tree, changing hw/qdev-properties.h triggers
a recompile of some 2700 out of 6600 objects (not counting tests and
objects that don't depend on qemu/osdep.h).

Many places including hw/qdev-properties.h (directly or via hw/qdev.h)
actually need only hw/qdev-core.h.  Include hw/qdev-core.h there
instead.

hw/qdev.h is actually pointless: all it does is include hw/qdev-core.h
and hw/qdev-properties.h, which in turn includes hw/qdev-core.h.
Replace the remaining uses of hw/qdev.h by hw/qdev-properties.h.

While there, delete a few superfluous inclusions of hw/qdev-core.h.

Touching hw/qdev-properties.h now recompiles some 1200 objects.

Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: "Daniel P. Berrangé" <berrange@redhat.com>
Cc: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Message-Id: <20190812052359.30071-22-armbru@redhat.com>
2019-08-16 13:31:53 +02:00
Markus Armbruster 650d103d3e Include hw/hw.h exactly where needed
In my "build everything" tree, changing hw/hw.h triggers a recompile
of some 2600 out of 6600 objects (not counting tests and objects that
don't depend on qemu/osdep.h).

The previous commits have left only the declaration of hw_error() in
hw/hw.h.  This permits dropping most of its inclusions.  Touching it
now recompiles less than 200 objects.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20190812052359.30071-19-armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2019-08-16 13:31:52 +02:00
Markus Armbruster d645427057 Include migration/vmstate.h less
In my "build everything" tree, changing migration/vmstate.h triggers a
recompile of some 2700 out of 6600 objects (not counting tests and
objects that don't depend on qemu/osdep.h).

hw/hw.h supposedly includes it for convenience.  Several other headers
include it just to get VMStateDescription.  The previous commit made
that unnecessary.

Include migration/vmstate.h only where it's still needed.  Touching it
now recompiles only some 1600 objects.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20190812052359.30071-16-armbru@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2019-08-16 13:31:52 +02:00
Markus Armbruster 64552b6be4 Include hw/irq.h a lot less
In my "build everything" tree, changing hw/irq.h triggers a recompile
of some 5400 out of 6600 objects (not counting tests and objects that
don't depend on qemu/osdep.h).

hw/hw.h supposedly includes it for convenience.  Several other headers
include it just to get qemu_irq and.or qemu_irq_handler.

Move the qemu_irq and qemu_irq_handler typedefs from hw/irq.h to
qemu/typedefs.h, and then include hw/irq.h only where it's still
needed.  Touching it now recompiles only some 500 objects.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20190812052359.30071-13-armbru@redhat.com>
2019-08-16 13:31:52 +02:00
Lidong Chen 1c598ab2b8 sd: Fix out-of-bounds assertions
Due to an off-by-one error, the assert statements allow an
out-of-bound array access.  This doesn't happen in practice,
but the static analyzer notices.

Signed-off-by: Lidong Chen <lidong.chen@oracle.com>
Reviewed-by: Liam Merwick <liam.merwick@oracle.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Li Qiang <liq3ea@gmail.com>
Reviewed-by: Darren Kenny <darren.kenny@oracle.com>
Message-Id: <6b19cb7359a10a6bedc3ea0fce22fed3ef93c102.1560806687.git.lidong.chen@oracle.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-06-21 13:25:29 +02:00
Markus Armbruster 0b8fa32f55 Include qemu/module.h where needed, drop it from qemu-common.h
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20190523143508.25387-4-armbru@redhat.com>
[Rebased with conflicts resolved automatically, except for
hw/usb/dev-hub.c hw/misc/exynos4210_rng.c hw/misc/bcm2835_rng.c
hw/misc/aspeed_scu.c hw/display/virtio-vga.c hw/arm/stm32f205_soc.c;
ui/cocoa.m fixed up]
2019-06-12 13:18:33 +02:00
kumar sourav 2bbf3a91eb hw: sd: set category of the sd memory card
Sets the category of the sd memory card as DEVICE_CATEGORY_STORAGE.
Devices should be assigned to one of DEVICE_CATEGORY_XXXX.

Signed-off-by: kumar sourav <sourav.jb1988@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20190124162045.10474-1-sourav.jb1988@gmail.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2019-01-30 10:24:20 +01:00
Philippe Mathieu-Daudé 4c8f9735da hw/sd: Use the IEC binary prefix definitions
It eases code review, unit is explicit.

Patch generated using:

  $ git grep -E '(1024|2048|4096|8192|(<<|>>).?(10|20|30))' hw/ include/hw/

and modified manually.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20180625124238.25339-37-f4bug@amsat.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-07-02 15:41:16 +02:00
Philippe Mathieu-Daudé d23b6caadb hw: Use IEC binary prefix definitions from "qemu/units.h"
Code change produced with:

  $ git ls-files | egrep '\.[ch]$' | \
    xargs sed -i -e 's/\(\W[KMGTPE]\)_BYTE/\1iB/g'

Suggested-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Acked-by: David Gibson <david@gibson.dropbear.id.au> (ppc parts)
Message-Id: <20180625124238.25339-6-f4bug@amsat.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-07-02 15:41:10 +02:00
Philippe Mathieu-Daudé 113f31c06c sdcard: Disable CMD19/CMD23 for Spec v2
These commands got introduced by Spec v3
(see 0c3fb03f7e and 4481bbc79d).

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20180607180641.874-7-f4bug@amsat.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-06-08 13:15:34 +01:00
Philippe Mathieu-Daudé 2c51137538 sdcard: Reflect when the Spec v3 is supported in the Config Register (SCR)
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20180607180641.874-6-f4bug@amsat.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-06-08 13:15:34 +01:00
Philippe Mathieu-Daudé d1b322182b sdcard: Disable SEND_IF_COND (CMD8) for Spec v1
CMD8 is "Reserved" in Spec v1.10.

Spec v2.00 introduces the SEND_IF_COND command:

  6.4.1 Power Up

    CMD8 is newly added in the Physical Layer Specification Version
    2.00 to support multiple voltage ranges and used to check whether
    the card supports supplied voltage. The version 2.00 or later host
    shall issue CMD8 and verify voltage before card initialization.
    The host that does not support CMD8 shall supply high voltage range.

Message-Id: 201204252110.20873.paul@codesourcery.com
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20180607180641.874-5-f4bug@amsat.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-06-08 13:15:34 +01:00
Philippe Mathieu-Daudé 2f0939c234 sdcard: Add a 'spec_version' property, default to Spec v2.00
As of this commit, the Spec v1 is not working, and all controllers
expect the cards to be conformant to Spec v2.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20180607180641.874-4-f4bug@amsat.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-06-08 13:15:33 +01:00
Philippe Mathieu-Daudé e2fce16edb sdcard: Allow commands valid in SPI mode
From the "Physical Layer Simplified Specification Version 1.10"
  Chapter 7.3 "SPI Mode Transaction Packets"
    Table 57: "Commands and arguments"

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20180607180641.874-3-f4bug@amsat.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-06-08 13:15:33 +01:00
Philippe Mathieu-Daudé 9e1245795f sdcard: Update the Configuration Register (SCR) to Spec Version 1.10
The initial implementation is based on the Specs v1.10 (see a1bb27b1e9).

However the SCR is anouncing the card being v1.01.

The new chapters added in version 1.10 are:

    4.3.10 Switch function command

    Switch function command (CMD6) 1 is used to switch or expand
    memory card functions. [...]
    This is a new feature, introduced in SD physical Layer
    Specification Version 1.10. Therefore, cards that are
    compatible with earlier versions of the spec do not support
    it. The host shall check the "SD_SPEC" field in the SCR
    register to recognize what version of the spec the card
    complies with before using CMD6. It is mandatory for SD
    memory card of Ver1.10 to support CMD6.

    4.3.11 High-Speed mode (25MB/sec interface speed)

    Though the Rev 1.01 SD memory card supports up to 12.5MB/sec
    interface speed, the speed of 25MB/sec is necessary to support
    increasing performance needs of the host and because of memory
    size which continues to grow.
    To achieve 25MB/sec interface speed, clock rate is increased to
    50MHz and CLK/CMD/DAT signal timing and circuit conditions are
    reconsidered and changed from Physical Layer Specification
    Version 1.01.

    4.3.12 Command system (This chapter is newly added in version 1.10)

    SD commands CMD34-37, CMD50, CMD57 are reserved for SD command
    system expansion via the switch command.
    [These commands] will be considered as illegal commands (as
    defined in revision 1.01 of the SD physical layer specification).

The SWITCH_FUNCTION is implemented since the first commit, a1bb27b1e9.

The 25MB/sec High-Speed mode was already updated in d7ecb86752.

The current implementation does not implements CMD34-37, CMD50 and
CMD57, thus these commands already return ILLEGAL.

With this patch, the SCR register now matches the description of the header:

 * SD Memory Card emulation as defined in the "SD Memory Card Physical
 * layer specification, Version 1.10."

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20180607180641.874-2-f4bug@amsat.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-06-08 13:15:33 +01:00
Philippe Mathieu-Daudé f6fb1f9b31 sdcard: Correct CRC16 offset in sd_function_switch()
Per the Physical Layer Simplified Spec. "4.3.10.4 Switch Function Status":

  The block length is predefined to 512 bits

and "4.10.2 SD Status":

  The SD Status contains status bits that are related to the SD Memory Card
  proprietary features and may be used for future application-specific usage.
  The size of the SD Status is one data block of 512 bit. The content of this
  register is transmitted to the Host over the DAT bus along with a 16-bit CRC.

Thus the 16-bit CRC goes at offset 64.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20180509060104.4458-3-f4bug@amsat.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-05-15 14:58:44 +01:00
Philippe Mathieu-Daudé 0c3fb03f7e sdcard: Add the Tuning Command (CMD19)
From the "Physical Layer Simplified Specification Version 3.01":

  A known data block ("Tuning block") can be used to tune sampling
  point for tuning required hosts. [...]
  This procedure gives the system optimal timing for each specific
  host and card combination and compensates for static delays in
  the timing budget including process, voltage and different PCB
  loads and skews. [...]
  Data block, carried by DAT[3:0], contains a pattern for tuning
  sampling position to receive data on the CMD and DAT[3:0] line.

[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: 20180309153654.13518-5-f4bug@amsat.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-03-09 17:09:44 +00:00
Philippe Mathieu-Daudé 75a96f5e1c sdcard: Display which protocol is used when tracing (SD or SPI)
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20180309153654.13518-4-f4bug@amsat.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-03-09 17:09:44 +00:00
Philippe Mathieu-Daudé 2ed61fb57b sdcard: Display command name when tracing CMD/ACMD
The SDBus will reuse these functions, so we put them in a new source file.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20180309153654.13518-3-f4bug@amsat.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
[PMM: slight wordsmithing of comments, added note that string
 returned does not need to be freed]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-03-09 17:09:44 +00:00
Philippe Mathieu-Daudé 586634b9a8 sdcard: Do not trace CMD55, except when we already expect an ACMD
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Acked-by: Alistair Francis <alistair.francis@xilinx.com>
Message-id: 20180309153654.13518-2-f4bug@amsat.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-03-09 17:09:44 +00:00
Philippe Mathieu-Daudé 4e5cc67565 sdcard: simplify SD_SEND_OP_COND (ACMD41)
replace switch(single case) -> if()

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Alistair Francis <alistair.francis@xilinx.com>
Message-id: 20180215221325.7611-17-f4bug@amsat.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-02-22 15:12:54 +00:00