Commit Graph

84346 Commits

Author SHA1 Message Date
Greg Kurz
20b7f45b22 9pfs: Improve unreclaim loop
If a fid was actually re-opened by v9fs_reopen_fid(), we re-traverse the
fid list from the head in case some other request created a fid that
needs to be marked unreclaimable as well (i.e. the client opened a new
handle on the path that is being unlinked). This is suboptimal since
most if not all fids that require it have likely been taken care of
already.

This is mostly the result of new fids being added to the head of the
list. Since the list is now a QSIMPLEQ, add new fids at the end instead
to avoid the need to rewind. Take a reference on the fid to ensure it
doesn't go away during v9fs_reopen_fid() and that it can be safely
passed to QSIMPLEQ_NEXT() afterwards. Since the associated put_fid()
can also yield, same is done with the next fid. So the logic here is
to get a reference on a fid and only put it back during the next
iteration after we could get a reference on the next fid.

Reviewed-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
Message-Id: <20210121181510.1459390-1-groug@kaod.org>
Signed-off-by: Greg Kurz <groug@kaod.org>
2021-01-22 15:17:19 +01:00
Gerd Hoffmann
2980a31673 usb-host: map LIBUSB_SPEED_SUPER_PLUS to USB_SPEED_SUPER
Handle host superspeedplus (usb 3.1+) devices like superspeed (usb 3.0)
devices.  That is enough to get them handled properly by xhci.  They show
up as superspeed devices inside the guest, but should be able to actually
run at higher speeds.

Reported-by: Angel Pagan <Angel.Pagan@stratus.com>
Tested-by: Angel Pagan <Angel.Pagan@stratus.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-Id: <20210121150832.3564097-1-kraxel@redhat.com>
2021-01-22 14:51:35 +01:00
Gerd Hoffmann
0f6dba145a usb: add pcap support.
Log all traffic of a specific usb device to a pcap file for later
inspection.  File format is compatible with linux usb monitor.

Usage:
  qemu -device usb-${somedevice},pcap=file.pcap
  wireshark file.pcap

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20210119194452.2148048-1-kraxel@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2021-01-22 14:51:35 +01:00
Philippe Mathieu-Daudé
d755cb9696 hw/usb/dev-uas: Report command additional adb length as unsupported
We are not ready to handle additional CDB data.

If a guest sends a packet with such additional data,
report the command parameter as not supported.

Specify a size (of 1 byte) for the add_cdb member we
are not using, to fix the following warning:

  usb/dev-uas.c:157:31: error: field 'status' with variable sized type 'uas_iu' not at the end of a struct or class is a GNU extension [-Werror,-Wgnu-variable-sized-type-not-at-end]
      uas_iu                    status;
                                ^

Reported-by: Ed Maste <emaste@FreeBSD.org>
Reported-by: Daniele Buono <dbuono@linux.vnet.ibm.com>
Reported-by: Han Han <hhan@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20210120153522.1173897-4-philmd@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2021-01-22 14:51:35 +01:00
Philippe Mathieu-Daudé
2e8f72acb0 scsi/utils: Add INVALID_PARAM_VALUE sense code definition
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20210120153522.1173897-3-philmd@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2021-01-22 14:51:35 +01:00
Philippe Mathieu-Daudé
96b66e5575 hw/usb/hcd-xhci: Fix extraneous format-truncation error on 32-bit hosts
For some reason the assert() added in commit ccb799313a
("hw/usb: avoid format truncation warning when formatting
port name") does not fix when building with GCC 10.

KISS and expand the buffer by 4 bytes to silent the following
error when using GCC 10.2.1 on Fedora 33:

  hw/usb/hcd-xhci.c: In function 'usb_xhci_realize':
  hw/usb/hcd-xhci.c:3309:54: error: '%d' directive output may be truncated writing between 1 and 8 bytes into a region of size 5 [-Werror=format-truncation=]
   3309 |             snprintf(port->name, sizeof(port->name), "usb2 port #%d", i+1);
        |                                                      ^~~~~~~~~~~~~~~
  hw/usb/hcd-xhci.c:3309:54: note: directive argument in the range [1, 89478486]
  In file included from /usr/include/stdio.h:866,
                   from include/qemu/osdep.h:85,
                   from hw/usb/hcd-xhci.c:22:
  /usr/include/bits/stdio2.h:70:10: note: '__builtin___snprintf_chk' output between 13 and 20 bytes into a destination of size 16
     70 |   return __builtin___snprintf_chk (__s, __n, __USE_FORTIFY_LEVEL - 1,
        |          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
     71 |        __bos (__s), __fmt, __va_arg_pack ());
        |        ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  hw/usb/hcd-xhci.c:3323:54: error: '%d' directive output may be truncated writing between 1 and 8 bytes into a region of size 5 [-Werror=format-truncation=]
   3323 |             snprintf(port->name, sizeof(port->name), "usb3 port #%d", i+1);
        |                                                      ^~~~~~~~~~~~~~~
  hw/usb/hcd-xhci.c:3323:54: note: directive argument in the range [1, 89478486]
  In file included from /usr/include/stdio.h:866,
                   from include/qemu/osdep.h:85,
                   from hw/usb/hcd-xhci.c:22:
  /usr/include/bits/stdio2.h:70:10: note: '__builtin___snprintf_chk' output between 13 and 20 bytes into a destination of size 16
     70 |   return __builtin___snprintf_chk (__s, __n, __USE_FORTIFY_LEVEL - 1,
        |          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
     71 |        __bos (__s), __fmt, __va_arg_pack ());
        |        ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  cc1: all warnings being treated as errors

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20210118181115.313742-1-philmd@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2021-01-22 14:51:35 +01:00
Markus Armbruster
c3585b600b hw/usb: Convert to qdev_realize()
Device code shouldn't mess with QOM property "realized" since we have
proper interfaces (merge commit 6675a653).  Commit 8ddab8dd3d
"usb/hcd-xhci: Split pci wrapper for xhci base model" and commit
f00ff136ee "usb: hcd-xhci-sysbus: Attach xhci to sysbus device"
reintroduced two instances.  Clean them up.  Note that s->xhci is
a (bus-less) TYPE_XHCI device.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20210119120151.53757-1-armbru@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2021-01-22 14:51:35 +01:00
Alex Chen
268c02424b hw/usb: Fix bad printf format specifiers
We should use printf format specifier "%u" instead of "%d" for
argument of type "unsigned int".

Reported-by: Euler Robot <euler.robot@huawei.com>
Signed-off-by: Alex Chen <alex.chen@huawei.com>
Message-id: 20201119025751.45750-1-alex.chen@huawei.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2021-01-22 14:51:35 +01:00
Fabrice Fontaine
a3c27ea034 hw/usb/host-libusb.c: fix build with kernel < 5.0
USBDEVFS_GET_SPEED is used since version 5.2.0 and
202d69a715
resulting in the following build failure with kernel < 5.0:

../hw/usb/host-libusb.c: In function 'usb_host_open':
../hw/usb/host-libusb.c:953:32: error: 'USBDEVFS_GET_SPEED' undeclared (first use in this function); did you mean 'USBDEVFS_GETDRIVER'?
         int rc = ioctl(hostfd, USBDEVFS_GET_SPEED, NULL);
                                ^~~~~~~~~~~~~~~~~~
                                USBDEVFS_GETDRIVER

A tentative was made to fix this build failure with
4969e697c1

However, the assumption that distros with old kernels also have old
libusb is just wrong so also add a check for defined(USBDEVFS_GET_SPEED)

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Message-id: 20201213213016.457350-1-fontaine.fabrice@gmail.com

[ kraxel: codestyle whitespace fixup ]

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2021-01-22 14:51:35 +01:00
Peter Maydell
0e32462630 linux-user pull request 20210119-v3
Remove obsolete F_SHLCK and F_EXLCK translation
 Update sockopt
 Add F_ADD_SEALS and F_GET_SEALS
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Merge remote-tracking branch 'remotes/vivier2/tags/linux-user-for-6.0-pull-request' into staging

linux-user pull request 20210119-v3

Remove obsolete F_SHLCK and F_EXLCK translation
Update sockopt
Add F_ADD_SEALS and F_GET_SEALS

# gpg: Signature made Thu 21 Jan 2021 12:33:04 GMT
# 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-6.0-pull-request:
  linux-user: Remove obsolete F_SHLCK and F_EXLCK translation
  linux-user: Add IPv6 options to do_print_sockopt()
  linux-user: add missing IPv6 get/setsockopt option
  linux-user: add missing UDP get/setsockopt option
  linux-user: Support F_ADD_SEALS and F_GET_SEALS fcntls

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-01-22 10:35:55 +00:00
Peter Maydell
a957d25dde s390x updates:
- headers update to Linux 5.11-rc2
 - fix tcg emulation for some instructions that are generated by
   clang Linux kernel builds
 - vfio-ccw: wire up the device unplug notification mechanism
 - fix a gcc 11 warning
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Merge remote-tracking branch 'remotes/cohuck-gitlab/tags/s390x-20210121' into staging

s390x updates:
- headers update to Linux 5.11-rc2
- fix tcg emulation for some instructions that are generated by
  clang Linux kernel builds
- vfio-ccw: wire up the device unplug notification mechanism
- fix a gcc 11 warning

# gpg: Signature made Thu 21 Jan 2021 12:08:12 GMT
# gpg:                using RSA key C3D0D66DC3624FF6A8C018CEDECF6B93C6F02FAF
# gpg:                issuer "cohuck@redhat.com"
# gpg: Good signature from "Cornelia Huck <conny@cornelia-huck.de>" [unknown]
# gpg:                 aka "Cornelia Huck <huckc@linux.vnet.ibm.com>" [full]
# gpg:                 aka "Cornelia Huck <cornelia.huck@de.ibm.com>" [full]
# gpg:                 aka "Cornelia Huck <cohuck@kernel.org>" [unknown]
# gpg:                 aka "Cornelia Huck <cohuck@redhat.com>" [unknown]
# Primary key fingerprint: C3D0 D66D C362 4FF6 A8C0  18CE DECF 6B93 C6F0 2FAF

* remotes/cohuck-gitlab/tags/s390x-20210121:
  s390x: Use strpadcpy for copying vm name
  vfio-ccw: Connect the device request notifier
  Update linux headers to 5.11-rc2
  update-linux-headers: Include const.h
  s390x/tcg: Ignore register content if b1/b2 is zero when handling EXECUTE
  tests/tcg/s390x: Fix EXRL tests
  s390x/tcg: Don't ignore content in r0 when not specified via "b" or "x"
  s390x/tcg: Fix RISBHG
  s390x/tcg: Fix ALGSI

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-01-21 19:09:45 +00:00
Greg Kurz
feabd6cf78 9pfs: Convert V9fsFidState::fid_list to QSIMPLEQ
The fid_list is currently open-coded. This doesn't seem to serve any
purpose that cannot be met with QEMU's generic lists. Let's go for a
QSIMPLEQ : this will allow to add new fids at the end of the list and
to improve the logic in v9fs_mark_fids_unreclaim().

Reviewed-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
Message-Id: <20210118142300.801516-3-groug@kaod.org>
Signed-off-by: Greg Kurz <groug@kaod.org>
2021-01-21 17:49:45 +01:00
Greg Kurz
2e53160fc6 9pfs: Convert V9fsFidState::clunked to bool
This can only be 0 or 1.

Reviewed-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
Message-Id: <20210118142300.801516-2-groug@kaod.org>
Signed-off-by: Greg Kurz <groug@kaod.org>
2021-01-21 17:49:45 +01:00
Greg Kurz
acef3f8b47 9pfs/proxy: Check return value of proxy_marshal()
This should always successfully write exactly two 32-bit integers.
Make it clear with an assert(), like v9fs_receive_status() and
v9fs_receive_response() already do when unmarshalling the same
header.

Fixes: Coverity CID 1438968
Reviewed-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
Message-Id: <161035859647.1221144.4691749806675653934.stgit@bahia.lan>
Signed-off-by: Greg Kurz <groug@kaod.org>
2021-01-21 17:49:45 +01:00
Michael Forney
b1d2e476e9 linux-user: Remove obsolete F_SHLCK and F_EXLCK translation
These lock types are unsupported by Linux since v2.2[0][1] and
always return EINVAL (except on SPARC up until v2.6, which just
warned).

musl libc does not define these constants, so just remove them from
the translation cases.

[0] https://github.com/mpe/linux-fullhistory/blob/v2.2.0/fs/locks.c#L322-L324
[1] https://github.com/mpe/linux-fullhistory/blob/v2.2.0/fs/locks.c#L429-L445

Signed-off-by: Michael Forney <mforney@mforney.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20210114223602.9004-1-mforney@mforney.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2021-01-21 13:27:34 +01:00
Shu-Chun Weng
38987eabb1 linux-user: Add IPv6 options to do_print_sockopt()
Signed-off-by: Shu-Chun Weng <scw@google.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20201218193213.3566856-5-scw@google.com>
[lv: Add missing <linux/in6.h> include for IPV6_ADDR_PREFERENCES]
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2021-01-21 13:27:08 +01:00
Gan Qixin
acd15fc2e8 util/cacheflush: Fix error generated by clang
When compiling qemu-fuzz-i386 on aarch64 host, clang reported the following
error:

../util/cacheflush.c:38:44: error: value size does not match register size
specified by the constraint and modifier [-Werror,-Wasm-operand-widths]
    asm volatile("mrs\t%0, ctr_el0" : "=r"(save_ctr_el0));
                                           ^
../util/cacheflush.c:38:24: note: use constraint modifier "w"
    asm volatile("mrs\t%0, ctr_el0" : "=r"(save_ctr_el0));
                       ^~
                       %w0

Modify the type of save_ctr_el0 to uint64_t to fix it.

Reported-by: Euler Robot <euler.robot@huawei.com>
Signed-off-by: Gan Qixin <ganqixin@huawei.com>
Message-Id: <20210115075656.717957-1-ganqixin@huawei.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2021-01-21 13:00:41 +01:00
Paolo Bonzini
23a77b2d18 build-system: clean up TCG/TCI configury
Make CONFIG_TCG_INTERPRETER a Meson option, and enable TCI (though with
a warning) if the host CPU is unsupported, making it more similar to
other --enable-* options.

Remove TCG-specific include paths from !CONFIG_TCG builds.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-01-21 13:00:41 +01:00
Yang Weijiang
5a140b255d x86/cpu: Use max host physical address if -cpu max option is applied
QEMU option -cpu max(max_features) means "Enables all features supported by
the accelerator in the current host", this looks true for all the features
except guest max physical address width, so add this patch to enable it.

Signed-off-by: Yang Weijiang <weijiang.yang@intel.com>
Message-Id: <20210113090430.26394-1-weijiang.yang@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-01-21 13:00:41 +01:00
Joshua Watt
15588a6245 configure: MinGW respect --bindir argument
There are two cases that need to be accounted for when compiling QEMU
for MinGW32:
 1) A standalone distribution, where QEMU is self contained and
    extracted by the user, such as a user would download from the QEMU
    website. In this case, all the QEMU executable files should be
    rooted in $prefix to ensure they can be easily found by the user
 2) QEMU integrated into a distribution image/sysroot/SDK and
    distributed with other programs. In this case, the provided
    arguments for bindir/datadir/etc. should be respected as they for a
    Linux build.

Restructures the MinGW path configuration so that all of the paths
except bindir use the same rules as when building for other platforms.
This satisfies #2 and #1 since these files do not need to be directly in
$prefix anyway.

The handling for --bindir is changed so that it defaults to $prefix on
MinGW (maintaining the compatibility with #1), but if the user specifies
a specific path when configuring it can also satisfy #2.

Signed-off-by: Joshua Watt <JPEWhacker@gmail.com>
Message-Id: <20210112210239.28836-1-JPEWhacker@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-01-21 13:00:41 +01:00
Paolo Bonzini
c27025e044 runstate: cleanup reboot and panic actions
The possible choices for panic, reset and watchdog actions are inconsistent.

"-action panic=poweroff" should be renamed to "-action panic=shutdown"
on the command line.  This is because "-action panic=poweroff" and
"-action watchdog=poweroff" have slightly different semantics, the first
does an unorderly exit while the second goes through qemu_cleanup().  With
this change, -no-shutdown would not have to change "-action panic=pause"
"pause", just like it does not have to change the reset action.

"-action reboot=none" should be renamed to "-action reboot=reset".
This should be self explanatory, since for example "-action panic=none"
lets the guest proceed without taking any action.

Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-01-21 13:00:41 +01:00
Peter Maydell
fef80ea073 nbd patches for 2021-01-20
- minor resource leak fixes in qemu-nbd
 - ensure proper aio context when nbd server uses iothreads
 - iotest refactorings in preparation for rewriting ./check to be more
 flexible, and preparing for more nbd server reconnect features
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 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/ericb/tags/pull-nbd-2021-01-20' into staging

nbd patches for 2021-01-20

- minor resource leak fixes in qemu-nbd
- ensure proper aio context when nbd server uses iothreads
- iotest refactorings in preparation for rewriting ./check to be more
flexible, and preparing for more nbd server reconnect features

# gpg: Signature made Thu 21 Jan 2021 02:28:19 GMT
# gpg:                using RSA key 71C2CC22B1C4602927D2F3AAA7A16B4A2527436A
# gpg: Good signature from "Eric Blake <eblake@redhat.com>" [full]
# gpg:                 aka "Eric Blake (Free Software Programmer) <ebb9@byu.net>" [full]
# gpg:                 aka "[jpeg image of size 6874]" [full]
# Primary key fingerprint: 71C2 CC22 B1C4 6029 27D2  F3AA A7A1 6B4A 2527 436A

* remotes/ericb/tags/pull-nbd-2021-01-20:
  iotests.py: qemu_io(): reuse qemu_tool_pipe_and_status()
  iotests.py: fix qemu_tool_pipe_and_status()
  iotests/264: fix style
  iotests: define group in each iotest
  iotests/294: add shebang line
  iotests: make tests executable
  iotests: fix some whitespaces in test output files
  iotests/303: use dot slash for qcow2.py running
  iotests/277: use dot slash for nbd-fault-injector.py running
  nbd/server: Quiesce coroutines on context switch
  block: Honor blk_set_aio_context() context requirements
  qemu-nbd: Fix a memleak in nbd_client_thread()
  qemu-nbd: Fix a memleak in qemu_nbd_client_list()

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-01-21 10:44:28 +00:00
Miroslav Rezanina
e6a80232f4 s390x: Use strpadcpy for copying vm name
Using strncpy with length equal to the size of target array, GCC 11
reports following warning:

  warning: '__builtin_strncpy' specified bound 256 equals destination size [-Wstringop-truncation]

We can prevent this warning by using strpadcpy that copies string
up to specified length, zeroes target array after copied string
and does not raise warning when length is equal to target array
size (and ending '\0' is discarded).

Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <6f86915755219cf6a671788075da4809b57f7d7b.1610607906.git.mrezanin@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
2021-01-21 11:19:45 +01:00
Eric Farman
b2f96f9e4f vfio-ccw: Connect the device request notifier
Now that the vfio-ccw code has a notifier interface to request that
a device be unplugged, let's wire that together.

Signed-off-by: Eric Farman <farman@linux.ibm.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Message-Id: <20210104202057.48048-4-farman@linux.ibm.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
2021-01-21 11:19:45 +01:00
Eric Farman
b3c818a47f Update linux headers to 5.11-rc2
Signed-off-by: Eric Farman <farman@linux.ibm.com>
Message-Id: <20210104202057.48048-3-farman@linux.ibm.com>
[CH: dropped qatomic->atomic changes in pvrdma_ring.h]
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
2021-01-21 11:19:45 +01:00
Eric Farman
ab5ec23f9c update-linux-headers: Include const.h
Kernel commit a85cbe6159ff ("uapi: move constants from
<linux/kernel.h> to <linux/const.h>") breaks our script
because of the unrecognized include. Let's add that to
our processing.

Signed-off-by: Eric Farman <farman@linux.ibm.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20210104202057.48048-2-farman@linux.ibm.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
2021-01-21 11:19:45 +01:00
David Hildenbrand
e312fa1d78 s390x/tcg: Ignore register content if b1/b2 is zero when handling EXECUTE
In our EXECUTE fast path, we have to ignore the content of r0, if
specified by b1 or b2.

Fixes: d376f123c7 ("target/s390x: Re-implement a few EXECUTE target insns directly")
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Tested-by: Nick Desaulniers <ndesaulniers@google.com>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20210111163845.18148-6-david@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
2021-01-21 11:19:45 +01:00
David Hildenbrand
d944293d9a tests/tcg/s390x: Fix EXRL tests
The current EXRL tests crash on real machines: we must not use r0 as a base
register for trt/trtr, otherwise the content gets ignored. Also, we must
not use r0 for exrl, otherwise it gets ignored.

Let's use the "a" constraint so we get a general purpose register != r0.
For op2, we can simply specify a memory operand directly via "Q" (Memory
reference without index register and with short displacement).

Fixes: ad8c851d2e ("target/s390x: add EX support for TRT and TRTR")
Signed-off-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20210111163845.18148-5-david@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
2021-01-21 11:19:45 +01:00
David Hildenbrand
401bf46779 s390x/tcg: Don't ignore content in r0 when not specified via "b" or "x"
Using get_address() with register identifiers comming from an "r" field
is wrong: if the "r" field designates "r0", we don't read the content
and instead assume 0 - which should only be applied when the register
was specified via "b" or "x".

PoP 5-11 "Operand-Address Generation":
  "A zero in any of the B1, B2, X2, B3, or B4 fields indicates the absence
   of the corresponding address component. For the absent component, a zero
   is used in forming the intermediate sum, regardless of the contents of
   general register 0. A displacement of zero has no special significance."

This BUG became visible for CSPG as generated by LLVM-12 in the upstream
Linux kernel (v5.11-rc2), used while creating the linear mapping in
vmem_map_init(): Trying to store to address 0 results in a Low Address
Protection exception.

Debugging this was more complicated than it could have been: The program
interrupt handler in the kernel will try to crash the kernel: doing so, it
will enable DAT. As the linear mapping is not created yet (asce=0), we run
into an addressing exception while tring to walk non-existant DAT tables,
resulting in a program exception loop.

This allows for booting upstream Linux kernels compiled by clang-12. Most
of these cases seem to be broken forever.

Reported-by: Nick Desaulniers <ndesaulniers@google.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Tested-by: Nick Desaulniers <ndesaulniers@google.com>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Cc: Guenter Roeck <linux@roeck-us.net>
Cc: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20210111163845.18148-4-david@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
2021-01-21 11:19:45 +01:00
David Hildenbrand
c23908305b s390x/tcg: Fix RISBHG
RISBHG is broken and currently hinders clang-11 builds of upstream kernels
from booting: the kernel crashes early, while decompressing the image.

  [...]
   Kernel fault: interruption code 0005 ilc:2
   Kernel random base: 0000000000000000
   PSW : 0000200180000000 0000000000017a1e
         R:0 T:0 IO:0 EX:0 Key:0 M:0 W:0 P:0 AS:0 CC:2 PM:0 RI:0 EA:3
   GPRS: 0000000000000001 0000000c00000000 00000003fffffff4 00000000fffffff0
         0000000000000000 00000000fffffff4 000000000000000c 00000000fffffff0
         00000000fffffffc 0000000000000000 00000000fffffff8 00000000008e25a8
         0000000000000009 0000000000000002 0000000000000008 000000000000bce0

One example of a buggy instruction is:

    17dde:       ec 1e 00 9f 20 5d       risbhg  %r1,%r14,0,159,32

With %r14 = 0x9 and %r1 = 0x7 should result in %r1 = 0x900000007, however,
results in %r1 = 0.

Let's interpret values of i3/i4 as documented in the PoP and make
computation of "mask" only based on i3 and i4 and use "pmask" only at the
very end to make sure wrapping is only applied to the high/low doubleword.

With this patch, I can successfully boot a v5.11-rc2 kernel built with
clang-11, and gcc builds keep on working.

Fixes: 2d6a869833 ("target-s390: Implement RISBG")
Reported-by: Nick Desaulniers <ndesaulniers@google.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Nick Desaulniers <ndesaulniers@google.com>
Cc: Guenter Roeck <linux@roeck-us.net>
Cc: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20210111163845.18148-3-david@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
2021-01-21 11:19:45 +01:00
David Hildenbrand
ad11129b30 s390x/tcg: Fix ALGSI
Looks like something went wrong whiel touching that line. Instead of "r1"
we need a new temporary. Also, we have to pass MO_TEQ, to indicate that
we are working with 64-bit values. Let's revert these changes.

Fixes: ff26d287bd ("target/s390x: Improve cc computation for ADD LOGICAL")
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Tested-by: Nick Desaulniers <ndesaulniers@google.com>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20210111163845.18148-2-david@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
2021-01-21 11:19:45 +01:00
Vladimir Sementsov-Ogievskiy
f874e7fa3b iotests.py: qemu_io(): reuse qemu_tool_pipe_and_status()
Just drop code duplication.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20201130134024.19212-5-vsementsov@virtuozzo.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
2021-01-20 20:24:51 -06:00
Vladimir Sementsov-Ogievskiy
5bd04f613a iotests.py: fix qemu_tool_pipe_and_status()
qemu_img_args variable is unrelated here. We should print just args.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20201130134024.19212-4-vsementsov@virtuozzo.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
2021-01-20 20:22:39 -06:00
Vladimir Sementsov-Ogievskiy
51223cbfcc iotests/264: fix style
Fix long line, extra import and one mypy complaint about incompatible
int and float.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20201118180433.11931-7-vsementsov@virtuozzo.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
2021-01-20 20:22:31 -06:00
Vladimir Sementsov-Ogievskiy
9dd003a998 iotests: define group in each iotest
We are going to drop group file. Define group in tests as a preparatory
step.

The patch is generated by

    cd tests/qemu-iotests

    grep '^[0-9]\{3\} ' group | while read line; do
        file=$(awk '{print $1}' <<< "$line");
        groups=$(sed -e 's/^... //' <<< "$line");
        awk "NR==2{print \"# group: $groups\"}1" $file > tmp;
        cat tmp > $file;
    done

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20210116134424.82867-7-vsementsov@virtuozzo.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
2021-01-20 14:53:22 -06:00
Vladimir Sementsov-Ogievskiy
92a476e959 iotests/294: add shebang line
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20210116134424.82867-6-vsementsov@virtuozzo.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
2021-01-20 14:53:22 -06:00
Vladimir Sementsov-Ogievskiy
fd6ce1d085 iotests: make tests executable
All other test files are executable. Fix these.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20210116134424.82867-5-vsementsov@virtuozzo.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
2021-01-20 14:53:22 -06:00
Vladimir Sementsov-Ogievskiy
f93e19fb03 iotests: fix some whitespaces in test output files
We are going to be stricter about comparing test result with .out
files. So, fix some whitespaces now.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20210116134424.82867-4-vsementsov@virtuozzo.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
2021-01-20 14:53:22 -06:00
Vladimir Sementsov-Ogievskiy
fb07b5c7f2 iotests/303: use dot slash for qcow2.py running
If you run './check 303', check includes common.config which adjusts
$PATH to include '.' first, and therefore finds qcow2.py on PATH.  But
if you run './303' directly, there is nothing to adjust PATH, and if
'.' is not already on your PATH by other means, the test fails because
the executable is not found.  Adjust how we invoke the helper
executable to avoid needing a PATH search in the first place.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20210116134424.82867-3-vsementsov@virtuozzo.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
2021-01-20 14:53:22 -06:00
Vladimir Sementsov-Ogievskiy
ec77662e60 iotests/277: use dot slash for nbd-fault-injector.py running
If you run './check 277', check includes common.config which adjusts
$PATH to include '.' first, and therefore finds nbd-fault-injector.py
on PATH.  But if you run './277' directly, there is nothing to adjust
PATH, and if '.' is not already on your PATH by other means, the test
fails because the executable is not found.  Adjust how we invoke the
helper executable to avoid needing a PATH search in the first place.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20210116134424.82867-2-vsementsov@virtuozzo.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
2021-01-20 14:53:22 -06:00
Sergio Lopez
f148ae7d36 nbd/server: Quiesce coroutines on context switch
When switching between AIO contexts we need to me make sure that both
recv_coroutine and send_coroutine are not scheduled to run. Otherwise,
QEMU may crash while attaching the new context with an error like
this one:

aio_co_schedule: Co-routine was already scheduled in 'aio_co_schedule'

To achieve this we need a local implementation of
'qio_channel_readv_all_eof' named 'nbd_read_eof' (a trick already done
by 'nbd/client.c') that allows us to interrupt the operation and to
know when recv_coroutine is yielding.

With this in place, we delegate detaching the AIO context to the
owning context with a BH ('nbd_aio_detach_bh') scheduled using
'aio_wait_bh_oneshot'. This BH signals that we need to quiesce the
channel by setting 'client->quiescing' to 'true', and either waits for
the coroutine to finish using AIO_WAIT_WHILE or, if it's yielding in
'nbd_read_eof', actively enters the coroutine to interrupt it.

RHBZ: https://bugzilla.redhat.com/show_bug.cgi?id=1900326
Signed-off-by: Sergio Lopez <slp@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20201214170519.223781-4-slp@redhat.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
2021-01-20 14:48:54 -06:00
Sergio Lopez
c7040ff64e block: Honor blk_set_aio_context() context requirements
The documentation for bdrv_set_aio_context_ignore() states this:

 * The caller must own the AioContext lock for the old AioContext of bs, but it
 * must not own the AioContext lock for new_context (unless new_context is the
 * same as the current context of bs).

As blk_set_aio_context() makes use of this function, this rule also
applies to it.

Fix all occurrences where this rule wasn't honored.

Suggested-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Sergio Lopez <slp@redhat.com>
Message-Id: <20201214170519.223781-2-slp@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
2021-01-20 14:48:08 -06:00
Alex Chen
af74b550bd qemu-nbd: Fix a memleak in nbd_client_thread()
When the qio_channel_socket_connect_sync() fails
we should goto 'out_socket' label to free the 'sioc' instead of
goto 'out' label.
In addition, there's a lot of redundant code in the successful branch
and the error branch, optimize it.

Reported-by: Euler Robot <euler.robot@huawei.com>
Signed-off-by: Alex Chen <alex.chen@huawei.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20201208134944.27962-1-alex.chen@huawei.com>
2021-01-20 14:48:05 -06:00
Alex Chen
992809bf8b qemu-nbd: Fix a memleak in qemu_nbd_client_list()
When the qio_channel_socket_connect_sync() fails
we should goto 'out' label to free the 'sioc' instead of return.

Reported-by: Euler Robot <euler.robot@huawei.com>
Signed-off-by: Alex Chen <alex.chen@huawei.com>
Message-Id: <20201130123651.17543-1-alex.chen@huawei.com>
Reviewed-by: Alberto Garcia <berto@igalia.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
2021-01-20 14:48:05 -06:00
Peter Maydell
954b83f132 * Fixes for compiling QEMU on Alpine Linux
* Add Alpine Linux to the gitlab-CI
 * Some small fixes for qtests
 * Updates to the MAINTAINERS file
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Merge remote-tracking branch 'remotes/huth-gitlab/tags/pull-request-2021-01-20' into staging

* Fixes for compiling QEMU on Alpine Linux
* Add Alpine Linux to the gitlab-CI
* Some small fixes for qtests
* Updates to the MAINTAINERS file

# gpg: Signature made Wed 20 Jan 2021 12:56:14 GMT
# gpg:                using RSA key 27B88847EEE0250118F3EAB92ED9D774FE702DB5
# gpg:                issuer "thuth@redhat.com"
# gpg: Good signature from "Thomas Huth <th.huth@gmx.de>" [full]
# gpg:                 aka "Thomas Huth <thuth@redhat.com>" [full]
# gpg:                 aka "Thomas Huth <huth@tuxfamily.org>" [full]
# gpg:                 aka "Thomas Huth <th.huth@posteo.de>" [unknown]
# Primary key fingerprint: 27B8 8847 EEE0 2501 18F3  EAB9 2ED9 D774 FE70 2DB5

* remotes/huth-gitlab/tags/pull-request-2021-01-20:
  MAINTAINERS: Make status spellings consistent
  MAINTAINERS: Remove Ben Warren
  tests: Fix memory leak in tpm-util.c
  qtest/npcm7xx_pwm-test: Fix memleak in pwm_qom_get
  gitlab-ci: Add alpine to pipeline
  tests/check-block.sh: Refuse to run the iotests with BusyBox' sed
  tests/docker: Add dockerfile for Alpine Linux
  accel/kvm: avoid using predefined PAGE_SIZE
  tests: Rename PAGE_SIZE definitions
  elf2dmp: Rename PAGE_SIZE to ELF2DMP_PAGE_SIZE
  hw/block/nand: Rename PAGE_SIZE to NAND_PAGE_SIZE
  libvhost-user: Include poll.h instead of sys/poll.h
  configure: Add sys/timex.h to probe clock_adjtime
  osdep.h: Remove <sys/signal.h> include

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-01-20 17:44:31 +00:00
Shu-Chun Weng
22db121389 linux-user: add missing IPv6 get/setsockopt option
IPV6_ADDR_PREFERENCES (RFC5014: Source address selection) was not supported.

Signed-off-by: Shu-Chun Weng <scw@google.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20201218193213.3566856-4-scw@google.com>
[PMD: Add missing <linux/in6.h> include for IPV6_ADDR_PREFERENCES]
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2021-01-20 18:25:42 +01:00
Shu-Chun Weng
fe51b0a597 linux-user: add missing UDP get/setsockopt option
SOL_UDP manipulate options at UDP level. All six options currently defined
in linux source include/uapi/linux/udp.h take integer values.

Signed-off-by: Shu-Chun Weng <scw@google.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20201218193213.3566856-3-scw@google.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2021-01-20 18:21:03 +01:00
Shu-Chun Weng
2bb963ff6b linux-user: Support F_ADD_SEALS and F_GET_SEALS fcntls
Also reorder blocks so that they are all in the same order everywhere.

Signed-off-by: Shu-Chun Weng <scw@google.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20201218193213.3566856-2-scw@google.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2021-01-20 18:21:03 +01:00
John Snow
4251dfb082 MAINTAINERS: Make status spellings consistent
Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20201030153416.429791-3-jsnow@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2021-01-20 10:46:54 +01:00
John Snow
2b42989c04 MAINTAINERS: Remove Ben Warren
Ben's email bounces and he no longer works for Skyport Systems. I was
unable to reach Ben, so mark this section as Orphaned for now.

Signed-off-by: John Snow <jsnow@redhat.com>
Message-Id: <20201030153416.429791-2-jsnow@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2021-01-20 10:46:54 +01:00