Commit Graph

76238 Commits

Author SHA1 Message Date
Philippe Mathieu-Daudé
3317db7439 hw/net/rtl8139: Update coding style to make checkpatch.pl happy
We will modify this code in the next commit. Clean it up
first to avoid checkpatch.pl errors.

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2020-03-31 21:14:35 +08:00
Philippe Mathieu-Daudé
2fa3d2d401 hw/net/rtl8139: Simplify if/else statement
Rewrite:

      if (E) {
          return A;
      } else {
          return B;
      }
      /* EOF */
  }

as:

      if (E) {
          return A;
      }
      return B;
  }

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2020-03-31 21:14:35 +08:00
Philippe Mathieu-Daudé
0002c3a696 hw/net/smc91c111: Let smc91c111_can_receive() return a boolean
The smc91c111_can_receive() function simply returns a boolean value.

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2020-03-31 21:14:35 +08:00
Philippe Mathieu-Daudé
205ce5670f hw/net/e1000e_core: Let e1000e_can_receive() return a boolean
The e1000e_can_receive() function simply returns a boolean value.

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2020-03-31 21:14:35 +08:00
Andrew Melnychenko
f22a57ac09 Fixed integer overflow in e1000e
Buglink: https://bugzilla.redhat.com/show_bug.cgi?id=1737400
Fixed setting max_queue_num if there are no peers in
NICConf. qemu_new_nic() creates NICState with 1 NetClientState(index
0) without peers, set max_queue_num to 0 - It prevents undefined
behavior and possible crashes, especially during pcie hotplug.

Fixes: 6f3fbe4ed0 ("net: Introduce e1000e device emulation")
Signed-off-by: Andrew Melnychenko <andrew@daynix.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Dmitry Fleytman <dmitry.fleytman@gmail.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2020-03-31 21:14:35 +08:00
Peter Maydell
a43790f2f6 hw/net/i82596.c: Avoid reading off end of buffer in i82596_receive()
The i82596_receive() function attempts to pass the guest a buffer
which is effectively the concatenation of the data it is passed and a
4 byte CRC value.  However, rather than implementing this as "write
the data; then write the CRC" it instead bumps the length value of
the data by 4, and writes 4 extra bytes from beyond the end of the
buffer, which it then overwrites with the CRC.  It also assumed that
we could always fit all four bytes of the CRC into the final receive
buffer, which might not be true if the CRC needs to be split over two
receive buffers.

Calculate separately how many bytes we need to transfer into the
guest's receive buffer from the source buffer, and how many we need
to transfer from the CRC work.

We add a count 'bufsz' of the number of bytes left in the source
buffer, which we use purely to assert() that we don't overrun.

Spotted by Coverity (CID 1419396) for the specific case when we end
up using a local array as the source buffer.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2020-03-31 21:14:35 +08:00
Philippe Mathieu-Daudé
baba731bc6 hw/net/i82596: Correct command bitmask (CID 1419392)
The command is 32-bit, but we are loading the 16 upper bits with
the 'get_uint16(s->scb + 2)' call.

Once shifted by 16, the command bits match the status bits:

- Command
  Bit 31 ACK-CX   Acknowledges that the CU completed an Action Command.
  Bit 30 ACK-FR   Acknowledges that the RU received a frame.
  Bit 29 ACK-CNA  Acknowledges that the Command Unit became not active.
  Bit 28 ACK-RNR  Acknowledges that the Receive Unit became not ready.

- Status
  Bit 15 CX       The CU finished executing a command with its I(interrupt) bit set.
  Bit 14 FR       The RU finished receiving a frame.
  Bit 13 CNA      The Command Unit left the Active state.
  Bit 12 RNR      The Receive Unit left the Ready state.

Add the SCB_COMMAND_ACK_MASK definition to simplify the code.

This fixes Coverity 1419392 (CONSTANT_EXPRESSION_RESULT):

  /hw/net/i82596.c: 352 in examine_scb()
  346         cuc = (command >> 8) & 0x7;
  347         ruc = (command >> 4) & 0x7;
  348         DBG(printf("MAIN COMMAND %04x  cuc %02x ruc %02x\n", command, cuc, ruc));
  349         /* and clear the scb command word */
  350         set_uint16(s->scb + 2, 0);
  351
  >>>     CID 1419392:    (CONSTANT_EXPRESSION_RESULT)
  >>>     "command & (2147483648UL /* 1UL << 31 */)" is always 0 regardless of the values of its operands. This occurs as the logical operand of "if".
  352         if (command & BIT(31))      /* ACK-CX */
  353             s->scb_status &= ~SCB_STATUS_CX;
  >>>     CID 1419392:    (CONSTANT_EXPRESSION_RESULT)
  >>>     "command & (1073741824UL /* 1UL << 30 */)" is always 0 regardless of the values of its operands. This occurs as the logical operand of "if".
  354         if (command & BIT(30))      /*ACK-FR */
  355             s->scb_status &= ~SCB_STATUS_FR;
  >>>     CID 1419392:    (CONSTANT_EXPRESSION_RESULT)
  >>>     "command & (536870912UL /* 1UL << 29 */)" is always 0 regardless of the values of its operands. This occurs as the logical operand of "if".
  356         if (command & BIT(29))      /*ACK-CNA */
  357             s->scb_status &= ~SCB_STATUS_CNA;
  >>>     CID 1419392:    (CONSTANT_EXPRESSION_RESULT)
  >>>     "command & (268435456UL /* 1UL << 28 */)" is always 0 regardless of the values of its operands. This occurs as the logical operand of "if".
  358         if (command & BIT(28))      /*ACK-RNR */
  359             s->scb_status &= ~SCB_STATUS_RNR;

Fixes: Covertiy CID 1419392 (commit 376b851909)
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2020-03-31 21:14:35 +08:00
Peter Maydell
2a95551e8b Improve PIE and other linkage
Fix for decodetree vs Python3 floor division operator
 Fix i386 INDEX_op_dup2_vec expansion
 Fix loongson multimedia condition instructions
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Merge remote-tracking branch 'remotes/rth/tags/pull-tcg-20200330' into staging

Improve PIE and other linkage
Fix for decodetree vs Python3 floor division operator
Fix i386 INDEX_op_dup2_vec expansion
Fix loongson multimedia condition instructions

# gpg: Signature made Tue 31 Mar 2020 04:50:15 BST
# gpg:                using RSA key 7A481E78868B4DB6A85A05C064DF38E8AF7E215F
# gpg:                issuer "richard.henderson@linaro.org"
# gpg: Good signature from "Richard Henderson <richard.henderson@linaro.org>" [full]
# Primary key fingerprint: 7A48 1E78 868B 4DB6 A85A  05C0 64DF 38E8 AF7E 215F

* remotes/rth/tags/pull-tcg-20200330:
  decodetree: Use Python3 floor division operator
  tcg/i386: Fix INDEX_op_dup2_vec
  target/mips: Fix loongson multimedia condition instructions
  configure: Support -static-pie if requested
  configure: Override the os default with --disable-pie
  configure: Unnest detection of -z,relro and -z,now
  configure: Always detect -no-pie toolchain support
  configure: Do not force pie=no for non-x86
  tcg: Remove softmmu code_gen_buffer fixed address
  configure: Drop adjustment of textseg

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-03-31 11:20:21 +01:00
Philippe Mathieu-Daudé
b412378785 decodetree: Use Python3 floor division operator
This script started using Python2, where the 'classic' division
operator returns the floor result. In commit 3d004a371 we started
to use Python3, where the division operator returns the float
result ('true division').
To keep the same behavior, use the 'floor division' operator "//"
which returns the floor result.

Fixes: 3d004a371
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20200330121345.14665-1-f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2020-03-30 11:44:04 -07:00
Richard Henderson
e20cb81d9c tcg/i386: Fix INDEX_op_dup2_vec
We were only constructing the 64-bit element, and not
replicating the 64-bit element across the rest of the vector.

Cc: qemu-stable@nongnu.org
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2020-03-30 11:16:17 -07:00
Peter Maydell
83019e81d1 target-arm queue:
* hw/arm/orangepi: check for potential NULL pointer when calling blk_is_available
  * hw/misc/allwinner-h3-dramc: enforce 64-bit multiply when calculating row mirror address
  * docs/conf.py: Raise ConfigError for bad Sphinx Python version
  * hw/arm/xlnx-zynqmp.c: Avoid memory leak in error-return path
  * hw/arm/xlnx-zynqmp.c: Add missing error-propagation code
  * target/arm: fix incorrect current EL bug in aarch32 exception emulation
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Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20200330' into staging

target-arm queue:
 * hw/arm/orangepi: check for potential NULL pointer when calling blk_is_available
 * hw/misc/allwinner-h3-dramc: enforce 64-bit multiply when calculating row mirror address
 * docs/conf.py: Raise ConfigError for bad Sphinx Python version
 * hw/arm/xlnx-zynqmp.c: Avoid memory leak in error-return path
 * hw/arm/xlnx-zynqmp.c: Add missing error-propagation code
 * target/arm: fix incorrect current EL bug in aarch32 exception emulation

# gpg: Signature made Mon 30 Mar 2020 14:36:02 BST
# gpg:                using RSA key E1A5C593CD419DE28E8315CF3C2525ED14360CDE
# gpg:                issuer "peter.maydell@linaro.org"
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>" [ultimate]
# gpg:                 aka "Peter Maydell <pmaydell@gmail.com>" [ultimate]
# gpg:                 aka "Peter Maydell <pmaydell@chiark.greenend.org.uk>" [ultimate]
# Primary key fingerprint: E1A5 C593 CD41 9DE2 8E83  15CF 3C25 25ED 1436 0CDE

* remotes/pmaydell/tags/pull-target-arm-20200330:
  target/arm: fix incorrect current EL bug in aarch32 exception emulation
  hw/arm/xlnx-zynqmp.c: Add missing error-propagation code
  hw/arm/xlnx-zynqmp.c: Avoid memory leak in error-return path
  docs/conf.py: Raise ConfigError for bad Sphinx Python version
  hw/misc/allwinner-h3-dramc: enforce 64-bit multiply when calculating row mirror address
  hw/arm/orangepi: check for potential NULL pointer when calling blk_is_available

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-03-30 14:37:20 +01:00
Changbin Du
88828bf133 target/arm: fix incorrect current EL bug in aarch32 exception emulation
The arm_current_el() should be invoked after mode switching. Otherwise, we
get a wrong current EL value, since current EL is also determined by
current mode.

Fixes: 4a2696c0d4 ("target/arm: Set PAN bit as required on exception entry")
Signed-off-by: Changbin Du <changbin.du@gmail.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200328140232.17278-1-changbin.du@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-03-30 13:55:32 +01:00
Peter Maydell
660b4e7042 hw/arm/xlnx-zynqmp.c: Add missing error-propagation code
In some places in xlnx_zynqmp_realize() we were putting an
error into our local Error*, but forgetting to check for
failure and pass it back to the caller. Add the missing code.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20200324134947.15384-3-peter.maydell@linaro.org
2020-03-30 13:18:59 +01:00
Peter Maydell
63fef6287e hw/arm/xlnx-zynqmp.c: Avoid memory leak in error-return path
In xlnx_zynqmp_realize() if the attempt to realize the SD
controller object fails then the error-return path will leak
the 'bus_name' string. Fix this by deferring the allocation
until after the realize has succeeded.

Fixes: Coverity CID 1421911
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20200324134947.15384-2-peter.maydell@linaro.org
2020-03-30 13:18:59 +01:00
Peter Maydell
e22684e34d docs/conf.py: Raise ConfigError for bad Sphinx Python version
Raise ConfigError rather than VersionRequirementError when we detect
that the Python being used by Sphinx is too old.

Currently the way we flag the Python version problem up to the user
causes Sphinx to print an unnecessary Python stack trace as well as
the information about the problem; in most versions of Sphinx this is
unavoidable.

The upstream Sphinx developers kindly added a feature to allow
conf.py to report errors to the user without the backtrace:
  be608ca231
but the exception type they chose for this was ConfigError.

Switch to ConfigError, which won't make any difference with currently
deployed Sphinx versions, but will be prettier one day when the user
is using a Sphinx version with the new feature.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: John Snow <jsnow@redhat.com>
Message-id: 20200313163616.30674-1-peter.maydell@linaro.org
2020-03-30 13:18:59 +01:00
Niek Linnenbank
34d8df2a1d hw/misc/allwinner-h3-dramc: enforce 64-bit multiply when calculating row mirror address
The allwinner_h3_dramc_map_rows function simulates row addressing behavior
when bootloader software attempts to detect the amount of available SDRAM.

Currently the line that calculates the 64-bit address of the mirrored row
uses a signed 32-bit multiply operation that in theory could result in the
upper 32-bit be all 1s. This commit ensures that the row mirror address
is calculated using only 64-bit operations.

Reported-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Niek Linnenbank <nieklinnenbank@gmail.com>
Message-id: 20200323192944.5967-1-nieklinnenbank@gmail.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-03-30 13:18:58 +01:00
Niek Linnenbank
c251191eae hw/arm/orangepi: check for potential NULL pointer when calling blk_is_available
The Orange Pi PC initialization function needs to verify that the SD card
block backend is usable before calling the Boot ROM setup routine. When
calling blk_is_available() the input parameter should not be NULL.
This commit ensures that blk_is_available is only called with non-NULL input.

Reported-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Niek Linnenbank <nieklinnenbank@gmail.com>
Message-id: 20200322205439.15231-1-nieklinnenbank@gmail.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-03-30 13:18:58 +01:00
Peter Maydell
f9fe8450fa Add support for futex_time64
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Merge remote-tracking branch 'remotes/vivier2/tags/linux-user-for-5.0-pull-request' into staging

Add support for futex_time64

# gpg: Signature made Mon 30 Mar 2020 11:29:16 BST
# gpg:                using RSA key CD2F75DDC8E3A4DC2E4F5173F30C38BD3F2FBE3C
# gpg:                issuer "laurent@vivier.eu"
# gpg: Good signature from "Laurent Vivier <lvivier@redhat.com>" [full]
# gpg:                 aka "Laurent Vivier <laurent@vivier.eu>" [full]
# gpg:                 aka "Laurent Vivier (Red Hat) <lvivier@redhat.com>" [full]
# Primary key fingerprint: CD2F 75DD C8E3 A4DC 2E4F  5173 F30C 38BD 3F2F BE3C

* remotes/vivier2/tags/linux-user-for-5.0-pull-request:
  linux-user: Support futex_time64

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-03-30 11:32:01 +01:00
Alistair Francis
146902964d linux-user: Support futex_time64
Add support for host and target futex_time64. If futex_time64 exists on
the host we try that first before falling back to the standard futex
syscall.

Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <d9390e368a9a1fd32d52aa771815e6e3d40cb1d4.1584571250.git.alistair.francis@wdc.com>
[lv: define sys_futex() if __NR_futex is defined (fix bug on 32bit host),
     remove duplicate get_errno()]
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2020-03-30 12:28:30 +02:00
Jiaxun Yang
84878f4c00 target/mips: Fix loongson multimedia condition instructions
Loongson multimedia condition instructions were previously implemented as
write 0 to rd due to lack of documentation. So I just confirmed with Loongson
about their encoding and implemented them correctly.

Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Acked-by: Huacai Chen <chenhc@lemote.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Aleksandar Markovic <aleksandar.qemu.devel@gmail.com>
Message-Id: <20200324122212.11156-1-jiaxun.yang@flygoat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2020-03-28 14:09:45 -07:00
Richard Henderson
127814629b configure: Support -static-pie if requested
Recent toolchains support static and pie at the same time.

As with normal dynamic builds, allow --static to default to PIE
if supported by the toolchain.  Allow --enable/--disable-pie to
override the default.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
v2: Fix --disable-pie --static
v3: Update for QEMU_LDFLAGS.
2020-03-28 14:09:45 -07:00
Richard Henderson
2c674109c2 configure: Override the os default with --disable-pie
Some distributions, e.g. Ubuntu 19.10, enable PIE by default.
If for some reason one wishes to build a non-pie binary, we
must provide additional options to override.

At the same time, reorg the code to an elif chain.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
v3: Update for QEMU_LDFLAGS.
2020-03-28 14:09:45 -07:00
Richard Henderson
e6cbd75158 configure: Unnest detection of -z,relro and -z,now
There is nothing about these options that is related to PIE.
Use them unconditionally.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Fangrui Song <i@maskray.me>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
v2: Do not split into two tests.
v3: Update to QEMU_LDFLAGS.
2020-03-28 14:09:45 -07:00
Richard Henderson
b26341241b configure: Always detect -no-pie toolchain support
The CFLAGS_NOPIE and LDFLAGS_NOPIE variables are used
in pc-bios/optionrom/Makefile, which has nothing to do
with the PIE setting of the main qemu executables.

This overrides any operating system default to build
all executables as PIE, which is important for ROMs.

Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2020-03-28 14:09:44 -07:00
Richard Henderson
d2cd29e307 configure: Do not force pie=no for non-x86
PIE is supported on many other hosts besides x86.

The default for non-x86 is now the same as x86: pie is used
if supported, and may be forced via --enable/--disable-pie.

The original commit (40d6444e91) said:

  "Non-x86 are not changed, as they require TCG changes"

but I think that's wrong -- there's nothing about PIE that
affects TCG one way or another.

Tested on aarch64 (bionic) and ppc64le (centos 7) hosts.

Tested-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2020-03-28 14:09:44 -07:00
Richard Henderson
64547a3bb6 tcg: Remove softmmu code_gen_buffer fixed address
The commentary talks about "in concert with the addresses
assigned in the relevant linker script", except there is no
linker script for softmmu, nor has there been for some time.

(Do not confuse the user-only linker script editing that was
removed in the previous patch, because user-only does not
use this code_gen_buffer allocation method.)

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2020-03-28 14:09:44 -07:00
Richard Henderson
ee5195ee0f configure: Drop adjustment of textseg
This adjustment was random and unnecessary.  The user mode
startup code in probe_guest_base() will choose a value for
guest_base that allows the host qemu binary to not conflict
with the guest binary.

With modern distributions, this isn't even used, as the default
is PIE, which does the same job in a more portable way.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
v2: Remove mention of config-host.ld from make distclean
2020-03-28 14:09:44 -07:00
Peter Maydell
5acad5bf48 Pull request
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Merge remote-tracking branch 'remotes/jnsnow/tags/ide-pull-request' into staging

Pull request

# gpg: Signature made Fri 27 Mar 2020 20:14:10 GMT
# gpg:                using RSA key F9B7ABDBBCACDF95BE76CBD07DEF8106AAFC390E
# gpg: Good signature from "John Snow (John Huston) <jsnow@redhat.com>" [full]
# Primary key fingerprint: FAEB 9711 A12C F475 812F  18F2 88A9 064D 1835 61EB
#      Subkey fingerprint: F9B7 ABDB BCAC DF95 BE76  CBD0 7DEF 8106 AAFC 390E

* remotes/jnsnow/tags/ide-pull-request:
  cmd646-ide: use qdev gpio rather than qemu_allocate_irqs()
  via-ide: use qdev gpio rather than qemu_allocate_irqs()
  via-ide: don't use PCI level for legacy IRQs
  hw/ide/sii3112: Use qdev gpio rather than qemu_allocate_irqs()
  fdc/i8257: implement verify transfer mode

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-03-28 00:27:04 +00:00
Mark Cave-Ayland
cbf4c9ac9c cmd646-ide: use qdev gpio rather than qemu_allocate_irqs()
This prevents the memory from qemu_allocate_irqs() from being leaked which
can in some cases be spotted by Coverity (CID 1421984).

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Message-id: 20200324210519.2974-4-mark.cave-ayland@ilande.co.uk
Signed-off-by: John Snow <jsnow@redhat.com>
2020-03-27 14:30:08 -04:00
Mark Cave-Ayland
627a445ae0 via-ide: use qdev gpio rather than qemu_allocate_irqs()
This prevents the memory from qemu_allocate_irqs() from being leaked which
can in some cases be spotted by Coverity (CID 1421984).

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Message-id: 20200324210519.2974-3-mark.cave-ayland@ilande.co.uk
Signed-off-by: John Snow <jsnow@redhat.com>
2020-03-27 14:30:08 -04:00
Mark Cave-Ayland
b938587569 via-ide: don't use PCI level for legacy IRQs
The PCI level calculation was accidentally left in when rebasing from a
previous patchset. Since both IRQs are driven separately, the value
being passed into the IRQ handler should be used directly.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Message-id: 20200324210519.2974-2-mark.cave-ayland@ilande.co.uk
Signed-off-by: John Snow <jsnow@redhat.com>
2020-03-27 14:30:08 -04:00
Peter Maydell
d6ef883d9d hw/ide/sii3112: Use qdev gpio rather than qemu_allocate_irqs()
Coverity points out (CID 1421984) that we are leaking the
memory returned by qemu_allocate_irqs(). We can avoid this
leak by switching to using qdev_init_gpio_in(); the base
class finalize will free the irqs that this allocates under
the hood.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Tested-by: BALATON Zoltan <balaton@eik.bme.hu>
Message-id: 20200323151715.29454-1-peter.maydell@linaro.org
[Maintainer edit: replace `DEVICE(dev)` by `ds` --js]
Signed-off-by: John Snow <jsnow@redhat.com>
2020-03-27 14:30:08 -04:00
Sven Schnelle
9e58f17270 fdc/i8257: implement verify transfer mode
While working on the Tulip driver i tried to write some Teledisk images to
a floppy image which didn't work. Turned out that Teledisk checks the written
data by issuing a READ command to the FDC but running the DMA controller
in VERIFY mode. As we ignored the DMA request in that case, the DMA transfer
never finished, and Teledisk reported an error.

The i8257 spec says about verify transfers:

3) DMA verify, which does not actually involve the transfer of data. When an
8257 channel is in the DMA verify mode, it will respond the same as described
for transfer operations, except that no memory or I/O read/write control signals
will be generated.

Hervé proposed to remove all the dma_mode_ok stuff from fdc to have a more
clear boundary between DMA and FDC, so this patch also does that.

Suggested-by: Hervé Poussineau <hpoussin@reactos.org>
Signed-off-by: Sven Schnelle <svens@stackframe.org>
Reviewed-by: Hervé Poussineau <hpoussin@reactos.org>
2020-03-27 14:30:08 -04:00
Peter Maydell
127fe86433 Testing updates:
- docker updates (various dependencies)
   - travis updates (s390x KVM build)
   - tweak qemu/atomic.h headers in event of clash
   - test/vm updates (NetBSD -> 9.0, FreeBSD -> 12.1)
   - disable MTTCG for mips64/mips64el
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Merge remote-tracking branch 'remotes/stsquad/tags/pull-testing-270320-2' into staging

Testing updates:

  - docker updates (various dependencies)
  - travis updates (s390x KVM build)
  - tweak qemu/atomic.h headers in event of clash
  - test/vm updates (NetBSD -> 9.0, FreeBSD -> 12.1)
  - disable MTTCG for mips64/mips64el

# gpg: Signature made Fri 27 Mar 2020 13:45:18 GMT
# gpg:                using RSA key 6685AE99E75167BCAFC8DF35FBD0DB095A9E2A44
# gpg: Good signature from "Alex Bennée (Master Work Key) <alex.bennee@linaro.org>" [full]
# Primary key fingerprint: 6685 AE99 E751 67BC AFC8  DF35 FBD0 DB09 5A9E 2A44

* remotes/stsquad/tags/pull-testing-270320-2:
  .travis.yml: Add a KVM-only s390x job
  tests/docker: Add libepoxy and libudev packages to the Fedora image
  tests/docker: Use Python3 PyYAML in the Fedora image
  tests/docker: Install gcrypt devel package in Debian image
  tests/docker: Keep package list sorted
  configure: disable MTTCG for MIPS guests
  tests/vm: fix basevm config
  tests/vm: update NetBSD to 9.0
  tests/vm: update FreeBSD to 12.1
  tests/vm: move vga setup
  tests/vm: write raw console log
  qemu/atomic.h: add #ifdef guards for stdatomic.h

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-03-27 18:15:01 +00:00
Peter Maydell
77a48a743f Block layer patches:
- Fix another case of mirror block job deadlocks
 - Minor fixes
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 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into staging

Block layer patches:

- Fix another case of mirror block job deadlocks
- Minor fixes

# gpg: Signature made Fri 27 Mar 2020 15:18:37 GMT
# gpg:                using RSA key 7F09B272C88F2FD6
# gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>" [full]
# Primary key fingerprint: DC3D EB15 9A9A F95D 3D74  56FE 7F09 B272 C88F 2FD6

* remotes/kevin/tags/for-upstream:
  qcow2: Remove unused fields from BDRVQcow2State
  mirror: Wait only for in-flight operations
  Revert "mirror: Don't let an operation wait for itself"
  nvme: Print 'cqid' for nvme_del_cq
  block: fix bdrv_root_attach_child forget to unref child_bs
  block/iscsi:use the flags in iscsi_open() prevent Clang warning

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-03-27 16:04:22 +00:00
Kevin Wolf
df74b1d3df qcow2: Remove unused fields from BDRVQcow2State
These fields were already removed in commit c3c10f72, but then commit
b58deb34 revived them probably due to bad merge conflict resolution.
They are still unused, so remove them again.

Fixes: b58deb344d
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20200326170757.12344-1-kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2020-03-27 14:47:23 +01:00
Kevin Wolf
ce8cabbd17 mirror: Wait only for in-flight operations
mirror_wait_for_free_in_flight_slot() just picks a random operation to
wait for. However, a MirrorOp is already in s->ops_in_flight when
mirror_co_read() waits for free slots, so if not enough slots are
immediately available, an operation can end up waiting for itself, or
two or more operations can wait for each other to complete, which
results in a hang.

Fix this by adding a flag to MirrorOp that tells us if the request is
already in flight (and therefore occupies slots that it will later
free), and picking only such operations for waiting.

Fixes: https://bugzilla.redhat.com/show_bug.cgi?id=1794692
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20200326153628.4869-3-kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2020-03-27 14:47:23 +01:00
Kevin Wolf
9178f4fe5f Revert "mirror: Don't let an operation wait for itself"
This reverts commit 7e6c4ff792.

The fix was incomplete as it only protected against requests waiting for
themselves, but not against requests waiting for each other. We need a
different solution.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20200326153628.4869-2-kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2020-03-27 14:47:23 +01:00
Minwoo Im
6fcc859fc2 nvme: Print 'cqid' for nvme_del_cq
The given argument for this trace should be cqid, not sqid.

Signed-off-by: Minwoo Im <minwoo.im.dev@gmail.com>
Message-Id: <20200324140646.8274-1-minwoo.im.dev@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2020-03-27 14:47:23 +01:00
Vladimir Sementsov-Ogievskiy
7a26df203c block: fix bdrv_root_attach_child forget to unref child_bs
bdrv_root_attach_child promises to drop child_bs reference on failure.
It does it on first handled failure path, but not on the second. Fix
that.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20200324155921.23822-1-vsementsov@virtuozzo.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2020-03-27 14:47:23 +01:00
Chen Qun
34afc5c298 block/iscsi:use the flags in iscsi_open() prevent Clang warning
Clang static code analyzer show warning:
  block/iscsi.c:1920:9: warning: Value stored to 'flags' is never read
        flags &= ~BDRV_O_RDWR;
        ^        ~~~~~~~~~~~~

In iscsi_allocmap_init() only checks BDRV_O_NOCACHE, which
is the same in both of flags and bs->open_flags.
We can use the flags instead bs->open_flags to prevent Clang warning.

Reported-by: Euler Robot <euler.robot@huawei.com>
Signed-off-by: Chen Qun <kuhn.chenqun@huawei.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20200311032927.35092-1-kuhn.chenqun@huawei.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2020-03-27 14:47:23 +01:00
Philippe Mathieu-Daudé
41e1f0e225 .travis.yml: Add a KVM-only s390x job
Add a job to build QEMU on s390x with TCG disabled, so
this configuration won't bitrot over time.

This job is quick, running check-unit: Ran for 5 min 30 sec
https://travis-ci.org/github/philmd/qemu/jobs/665456423

Acked-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20200322154015.25358-1-philmd@redhat.com>
Message-Id: <20200323161514.23952-12-alex.bennee@linaro.org>
2020-03-27 13:43:20 +00:00
Philippe Mathieu-Daudé
3e3207337b tests/docker: Add libepoxy and libudev packages to the Fedora image
Install optional dependencies of QEMU to get better coverage.

Suggested-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20200322120104.21267-5-philmd@redhat.com>
Message-Id: <20200323161514.23952-11-alex.bennee@linaro.org>
2020-03-27 13:43:20 +00:00
Philippe Mathieu-Daudé
6d8e7738b0 tests/docker: Use Python3 PyYAML in the Fedora image
The Python2 PyYAML is now pointless, switch to the Python3 version.

Fixes: bcbf27947 (docker: move tests from python2 to python3)
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20200322120104.21267-4-philmd@redhat.com>
Message-Id: <20200323161514.23952-10-alex.bennee@linaro.org>
2020-03-27 13:43:20 +00:00
Philippe Mathieu-Daudé
9274ae32c3 tests/docker: Install gcrypt devel package in Debian image
In commit 6f8bbb374b we enabled building with the gcrypt library
on the the Debian 'x86 host', which was based on Debian Stretch.
Later in commit 698a71edbe we upgraded the Debian base image to
Buster.

Apparently Debian Stretch was listing gcrypt as a QEMU dependency,
but this is not the case anymore in Buster, so we need to install
it manually (it it not listed by 'apt-get -s build-dep qemu' in
the common debian10.docker anymore). This fixes:

 $ ../configure $QEMU_CONFIGURE_OPTS

  ERROR: User requested feature gcrypt
         configure was not able to find it.
         Install gcrypt devel >= 1.5.0

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20200322120104.21267-3-philmd@redhat.com>
Message-Id: <20200323161514.23952-9-alex.bennee@linaro.org>
2020-03-27 13:43:20 +00:00
Philippe Mathieu-Daudé
cdb1a84cfe tests/docker: Keep package list sorted
Keep package list sorted, this eases rebase/cherry-pick.

Fixes: 3a6784813
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20200322120104.21267-2-philmd@redhat.com>
Message-Id: <20200323161514.23952-8-alex.bennee@linaro.org>
2020-03-27 13:43:20 +00:00
Alex Bennée
a092a95547 configure: disable MTTCG for MIPS guests
While debugging check-acceptance failures I found an instability in
the mips64el test case. Briefly the test case:

  retry.py -n 100 -c -- ./mips64el-softmmu/qemu-system-mips64el \
    -display none -vga none -serial mon:stdio \
    -machine malta -kernel ./vmlinux-4.7.0-rc1.I6400 \
    -cpu I6400 -smp 8 -vga std \
    -append "printk.time=0 clocksource=GIC console=tty0 console=ttyS0 panic=-1" \
    --no-reboot

Reports about a 9% failure rate:

  Results summary:
  0: 91 times (91.00%), avg time 5.547 (0.45 varience/0.67 deviation)
  -6: 9 times (9.00%), avg time 3.394 (0.02 varience/0.13 deviation)
  Ran command 100 times, 91 passes

When re-run with "--accel tcg,thread=single" the instability goes
away.

  Results summary:
  0: 100 times (100.00%), avg time 17.318 (249.76 varience/15.80 deviation)
  Ran command 100 times, 100 passes

Which seems to indicate there is some aspect of the MIPS MTTCG fixes
that has been missed. Ideally we would fix that but I'm afraid I don't
have time to investigate and am not super familiar with the
architecture anyway. In lieu of someone tracking down the failure lets
disable it for now.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Acked-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Acked-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Aleksandar Markovic <aleksandar.qemu.devel@gmail.com>
Cc: Aurelien Jarno <aurelien@aurel32.net>
Cc: Aleksandar Rikalo <aleksandar.rikalo@rt-rk.com>
Message-Id: <20200323161514.23952-7-alex.bennee@linaro.org>
2020-03-27 13:43:20 +00:00
Alex Bennée
f01454ad17 tests/vm: fix basevm config
When the patch was merged it was part of a longer series which had
already merged the config changes. Semu-revert the config related
changes for now so things will build.

Fixes: b081986c85
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20200323161514.23952-6-alex.bennee@linaro.org>
2020-03-27 13:43:20 +00:00
Gerd Hoffmann
2cc3e591b3 tests/vm: update NetBSD to 9.0
The installer supports GPT now, so the install workflow has changed a
bit.  Also: run without VGA device.  This works around a bug in the
seabios sercon code and makes the bootloader menu show up on the serial
line, so we can drop the quirk for that.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20200310083218.26355-5-kraxel@redhat.com>
Message-Id: <20200323161514.23952-5-alex.bennee@linaro.org>
2020-03-27 13:43:20 +00:00
Gerd Hoffmann
610bd2cf2f tests/vm: update FreeBSD to 12.1
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20200310083218.26355-4-kraxel@redhat.com>
Message-Id: <20200323161514.23952-4-alex.bennee@linaro.org>
2020-03-27 13:43:20 +00:00