Commit Graph

64197 Commits

Author SHA1 Message Date
Richard Henderson
ced3155141 target/arm: Adjust aarch64_cpu_dump_state for system mode SVE
Use the existing helpers to determine if (1) the fpu is enabled,
(2) sve state is enabled, and (3) the current sve vector length.

Tested-by: Laurent Desnogues <laurent.desnogues@gmail.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20181005175350.30752-6-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-10-08 14:55:03 +01:00
Richard Henderson
0ab5953b00 target/arm: Handle SVE vector length changes in system mode
SVE vector length can change when changing EL, or when writing
to one of the ZCR_ELn registers.

For correctness, our implementation requires that predicate bits
that are inaccessible are never set.  Which means noticing length
changes and zeroing the appropriate register bits.

Tested-by: Laurent Desnogues <laurent.desnogues@gmail.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20181005175350.30752-5-richard.henderson@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-10-08 14:55:02 +01:00
Richard Henderson
2de7ace292 target/arm: Pass in current_el to fp and sve_exception_el
We are going to want to determine whether sve is enabled
for EL other than current.

Tested-by: Laurent Desnogues <laurent.desnogues@gmail.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20181005175350.30752-4-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-10-08 14:55:02 +01:00
Richard Henderson
60eed0869d target/arm: Adjust sve_exception_el
Check for EL3 before testing CPTR_EL3.EZ.  Return 0 when the exception
should be routed via AdvSIMDFPAccessTrap.  Mirror the structure of
CheckSVEEnabled more closely.

Fixes: 5be5e8eda7
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Tested-by: Laurent Desnogues <laurent.desnogues@gmail.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20181005175350.30752-3-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-10-08 14:55:02 +01:00
Richard Henderson
9516d7725e target/arm: Define ID_AA64ZFR0_EL1
Given that the only field defined for this new register may only
be 0, we don't actually need to change anything except the name.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Tested-by: Laurent Desnogues <laurent.desnogues@gmail.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20181005175350.30752-2-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-10-08 14:55:02 +01:00
Peter Maydell
e5ae4d0c06 target/arm: Don't read r4 from v8M exception stackframe twice
A cut-and-paste error meant we were reading r4 from the v8M
callee-saves exception stack frame twice. This is harmless
since it just meant we did two memory accesses to the same
location, but it's unnecessary. Delete it.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20181002150304.2287-1-peter.maydell@linaro.org
2018-10-08 14:55:02 +01:00
Peter Maydell
7b73a1ca05 target/arm: Correct condition for v8M callee stack push
In v7m_exception_taken() we were incorrectly using a
"LR bit EXCRET.ES is 1" check when it should be 0
(compare the pseudocode ExceptionTaken() function).
This meant we didn't stack the callee-saved registers
when tailchaining from a NonSecure to a Secure exception.

Cc: qemu-stable@nongnu.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20181002145940.30931-1-peter.maydell@linaro.org
2018-10-08 14:55:02 +01:00
Peter Maydell
846690dee8 virt: Suppress external aborts on virt-2.10 and earlier
In commit c79c0a314c we enabled emulation of external aborts
when the guest attempts to access a physical address with no
mapped device. In commit 4672cbd7be we suppress this for
most legacy boards to prevent breakage of previously working
guests, but we didn't suppress it in the 'virt' board, with
the rationale "we know that guests won't try to prod devices
that we don't describe in the device tree or ACPI tables". This
is mostly true, but we've had a report of a Linux guest image
that this did break. The problem seems to be that the guest
is (incorrectly) configured with a DEBUG_UART_PHYS value that
tells it there is a uart at 0x10009000 (which is true for
vexpress but not for virt), so in early bootup the kernel
probes this bogus address.

This is a misconfigured guest, so we don't need to worry
about it too much, but we can arrange that guests that ran
on QEMU v2.10 (before c79c0a314c) will still run on
the "virt-2.10" board model, by suppressing external aborts
only for that version and earlier. This seems a reasonable
compromise: "virt-2.10" is supposed to behave the same way
that "virt" did in the 2.10 release, and making it do that
provides a usable workaround for guests with bugs like this.

Cc: qemu-stable@nongnu.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20180925144127.31965-1-peter.maydell@linaro.org
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2018-10-08 14:55:02 +01:00
Dongjiu Geng
c8a4470986 target/arm: fix code comments error
The parameter of kvm_arm_init_cpreg_list() is ARMCPU instead of
CPUState, so correct the note to make it match the code.

Signed-off-by: Dongjiu Geng <gengdongjiu@huawei.com>
Message-id: 1538069046-5757-1-git-send-email-gengdongjiu@huawei.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-10-08 14:55:02 +01:00
Peter Maydell
079911cb6e Testing infrastructure for softfpu (not run by default).
Drop countLeadingZeros.
 Fix div_floats.
 Add udiv_qrnnd specializations for x86_64, s390x, ppc64 hosts.
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Merge remote-tracking branch 'remotes/rth/tags/pull-fpu-20181005' into staging

Testing infrastructure for softfpu (not run by default).
Drop countLeadingZeros.
Fix div_floats.
Add udiv_qrnnd specializations for x86_64, s390x, ppc64 hosts.

# gpg: Signature made Fri 05 Oct 2018 19:00:09 BST
# gpg:                using RSA key 64DF38E8AF7E215F
# gpg: Good signature from "Richard Henderson <richard.henderson@linaro.org>"
# Primary key fingerprint: 7A48 1E78 868B 4DB6 A85A  05C0 64DF 38E8 AF7E 215F

* remotes/rth/tags/pull-fpu-20181005:
  softfloat: Specialize udiv_qrnnd for ppc64
  softfloat: Specialize udiv_qrnnd for s390x
  softfloat: Specialize udiv_qrnnd for x86_64
  softfloat: Fix division
  softfloat: Replace countLeadingZeros32/64 with clz32/64
  tests/fp/fp-test: add floating point tests
  gitmodules: add berkeley's softfloat + testfloat version 3
  softfloat: remove float64_trunc_to_int

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-10-08 12:44:35 +01:00
Peter Maydell
bb94c11985 slirp updates
Andrew Oates (1):
   slirp: fix ICMP handling on macOS hosts
 
 Gavin Grant (1):
   slirp: Propagate host TCP RST packet to the guest after socket
     disconnected
 
 Peter Maydell (1):
   slirp: document mbuf pointers and sizes
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Merge remote-tracking branch 'remotes/thibault/tags/samuel-thibault' into staging

slirp updates

Andrew Oates (1):
  slirp: fix ICMP handling on macOS hosts

Gavin Grant (1):
  slirp: Propagate host TCP RST packet to the guest after socket
    disconnected

Peter Maydell (1):
  slirp: document mbuf pointers and sizes

# gpg: Signature made Sun 07 Oct 2018 19:04:13 BST
# gpg:                using RSA key E3F65A9E9560DB4C
# gpg: Good signature from "Samuel Thibault <samuel.thibault@aquilenet.fr>"
# gpg:                 aka "Samuel Thibault <sthibault@debian.org>"
# gpg:                 aka "Samuel Thibault <samuel.thibault@gnu.org>"
# gpg:                 aka "Samuel Thibault <samuel.thibault@inria.fr>"
# gpg:                 aka "Samuel Thibault <samuel.thibault@labri.fr>"
# gpg:                 aka "Samuel Thibault <samuel.thibault@ens-lyon.org>"
# gpg:                 aka "Samuel Thibault <samuel.thibault@u-bordeaux.fr>"
# gpg: WARNING: This key is not certified with sufficiently trusted signatures!
# gpg:          It is not certain that the signature belongs to the owner.
# Primary key fingerprint: 900C B024 B679 31D4 0F82  304B D017 8C76 7D06 9EE6
#      Subkey fingerprint: 33FA 7B64 6195 01F8 CE9C  8F97 E3F6 5A9E 9560 DB4C

* remotes/thibault/tags/samuel-thibault:
  slirp: Propagate host TCP RST packet to the guest after socket disconnected
  slirp: fix ICMP handling on macOS hosts
  slirp: document mbuf pointers and sizes

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-10-08 11:20:17 +01:00
Peter Maydell
df51a00519 CLI help improvements
PULLv2:
  - fix uninitialized "seentype" variable in qom-test
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Merge remote-tracking branch 'remotes/elmarco/tags/option-pull-request' into staging

CLI help improvements

PULLv2:
 - fix uninitialized "seentype" variable in qom-test

# gpg: Signature made Fri 05 Oct 2018 13:28:21 BST
# gpg:                using RSA key DAE8E10975969CE5
# gpg: Good signature from "Marc-André Lureau <marcandre.lureau@redhat.com>"
# gpg:                 aka "Marc-André Lureau <marcandre.lureau@gmail.com>"
# Primary key fingerprint: 87A9 BD93 3F87 C606 D276  F62D DAE8 E109 7596 9CE5

* remotes/elmarco/tags/option-pull-request:
  vl: list user creatable properties when 'help' is argument
  hostmem: add some properties description
  vl: handle -object help
  tests/qom-proplist: check class properties iterator
  tests/qom-proplist: check properties are not listed multiple times
  tests/qom-proplist: check duplicate "bv" property registration failed
  qom/object: register 'type' property as class property
  qom/object: fix iterating properties over a class
  qemu-option: improve qemu_opts_print_help() output
  qemu-option: add help fallback to print the list of options
  cutils: add qemu_pstrcmp0()
  qdev-monitor: print help to stdout

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-10-08 10:04:16 +01:00
Gavin Grant
93a972f854 slirp: Propagate host TCP RST packet to the guest after socket disconnected
Commit 27d92ebc5e handled the case where the TCP
connection is abruptly closed via a RST packet, by checking for the ECONNRESET
errno. However it does not consider the case where the connection has been
half-closed by the host (FIN/ACK), then the host socket is disconnected. For
example, if the host application calls close() on the socket, then the
application exits.

In this case, the socket still exists due to the file descriptor in SLIRP, but
it is disconnected. recv() does not indicate an error since an orderly socket
close has previously occurred. The socket will then be stuck in FIN_WAIT_2,
until the peer sends FIN/ACK or a timeout occurs. Instead we can send a RST
to the peer and transition to the CLOSED state.

Signed-off-by: Gavin Grant <gavingrant@protonmail.com>
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
2018-10-07 19:50:48 +02:00
Andrew Oates
3d090aefe2 slirp: fix ICMP handling on macOS hosts
On Linux, SOCK_DGRAM+IPPROTO_ICMP sockets give only the ICMP packet when
read from.  On macOS, however, the socket acts like a SOCK_RAW socket
and includes the IP header as well.

This change strips the extra IP header from the received packet on macOS
before sending it to the guest.  SOCK_DGRAM ICMP sockets aren't
supported on other BSDs, but we enable this behavior for them as well to
treat the sockets the same as raw sockets.

Signed-off-by: Andrew Oates <aoates@google.com>
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
2018-10-07 19:40:30 +02:00
Peter Maydell
632dd719b3 slirp: document mbuf pointers and sizes
and fix confusing datasize name into gapsize in m_inc.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
2018-10-07 19:40:30 +02:00
Richard Henderson
27ae5109a2 softfloat: Specialize udiv_qrnnd for ppc64
The ISA has a 128/64-bit division instruction, though it assumes the
low 64-bits of the numerator are 0, and so requires a bit more fixup
than a full 128-bit division insn.

Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2018-10-05 12:57:41 -05:00
Richard Henderson
739df333dc softfloat: Specialize udiv_qrnnd for s390x
The ISA has a 128/64-bit division instruction.

Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2018-10-05 12:57:41 -05:00
Richard Henderson
b299e88d42 softfloat: Specialize udiv_qrnnd for x86_64
The ISA has a 128/64-bit division instruction.

Tested-by: Emilio G. Cota <cota@braap.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2018-10-05 12:57:41 -05:00
Richard Henderson
5dfbc9e490 softfloat: Fix division
The __udiv_qrnnd primitive that we nicked from gmp requires its
inputs to be normalized.  We were not doing that.  Because the
inputs are nearly normalized already, finishing that is trivial.

Replace div128to64 with a "proper" udiv_qrnnd, so that this
remains a reusable primitive.

Fixes: cf07323d49
Fixes: https://bugs.launchpad.net/qemu/+bug/1793119
Tested-by: Emilio G. Cota <cota@braap.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2018-10-05 12:57:41 -05:00
Thomas Huth
0019d5c3a1 softfloat: Replace countLeadingZeros32/64 with clz32/64
Our minimum required compiler for compiling QEMU is GCC 4.1 these days,
so we can drop the support for compilers which do not provide the
__builtin_clz*() functions yet. Since the countLeadingZeros32/64 are
then identical to the clz32/64 functions, and we do not have to sync
the softloat 2 codebase with upstream anymore (softloat 3 is a complete
rewrite) we can simply replace the functions with our QEMU versions.

Suggested-by: Peter Maydell <peter.maydell@linaro.org>
Acked-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <1538118095-7003-1-git-send-email-thuth@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2018-10-05 12:57:41 -05:00
Emilio G. Cota
3ac1f81329 tests/fp/fp-test: add floating point tests
By leveraging berkeley's softfloat and testfloat.

With this we get decent coverage of softfloat.c:

$ ./fp-test -r even:	67.22% coverage
$ ./fp-test -r all:	73.11% coverage

Note that we do not yet test parts of softfloat.c that aren't
in the original softfloat library, namely:

- denormal inputs
- *_to_int16/uint16 conversions
- scalbn for fixed point
- muladd variants
- min/max
- exp2
- log2
- float*_compare (except float16_compare)

Signed-off-by: Emilio G. Cota <cota@braap.org>
[rth: Add the new modules to git_submodules.]
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2018-10-05 12:57:41 -05:00
Emilio G. Cota
b44b5abeae gitmodules: add berkeley's softfloat + testfloat version 3
These are BSD-licensed so we can add them as submodules.

Signed-off-by: Emilio G. Cota <cota@braap.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2018-10-05 12:57:41 -05:00
Emilio G. Cota
c953da8f0b softfloat: remove float64_trunc_to_int
It has not had users since f83311e476 ("target-m68k: use floatx80
internally", 2017-06-21).

Note that no other bit-width has floatX_trunc_to_int.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Emilio G. Cota <cota@braap.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2018-10-05 12:57:41 -05:00
Peter Maydell
e2e3436add vga: edid fixes, qxl clang workaround, vga mmio subregion fix.
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Merge remote-tracking branch 'remotes/kraxel/tags/vga-20181005-pull-request' into staging

vga: edid fixes, qxl clang workaround, vga mmio subregion fix.

# gpg: Signature made Fri 05 Oct 2018 12:11:40 BST
# gpg:                using RSA key 4CB6D8EED3E87138
# gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>"
# gpg:                 aka "Gerd Hoffmann <gerd@kraxel.org>"
# gpg:                 aka "Gerd Hoffmann (private) <kraxel@gmail.com>"
# Primary key fingerprint: A032 8CFF B93A 17A7 9901  FE7D 4CB6 D8EE D3E8 7138

* remotes/kraxel/tags/vga-20181005-pull-request:
  edid: fix vendor default
  secondary-vga: delete mmio subregions upon exit
  hw/display/qxl: Suppress clang-7 warning about misaligned atomic operation
  edid: Ignore built binary

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-10-05 18:52:58 +01:00
Peter Maydell
3c2d304284 qemu-openbios.for-upstream queue
-----BEGIN PGP SIGNATURE-----
 
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 MIsZqCI=
 =IKZh
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/mcayland/tags/qemu-openbios.for-upstream-20181005' into staging

qemu-openbios.for-upstream queue

# gpg: Signature made Fri 05 Oct 2018 09:48:16 BST
# gpg:                using RSA key 5BC2C56FAE0F321F
# gpg: Good signature from "Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>"
# Primary key fingerprint: CC62 1AB9 8E82 200D 915C  C9C4 5BC2 C56F AE0F 321F

* remotes/mcayland/tags/qemu-openbios.for-upstream-20181005:
  Update OpenBIOS images to 441a84d3 built from submodule.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-10-05 17:55:22 +01:00
Peter Maydell
ae7a4c0a46 Various s390x updates:
- fix several struct definitions so that sparc hosts do not trip over
   unaligned accesses
 - fence enabling huge pages for pre-3.1 machines
 - sysbus init -> realize conversion
 - fixes and improvements in tcg (instruction flags and AFP registers)
 -----BEGIN PGP SIGNATURE-----
 
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 =0e7K
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/cohuck/tags/s390x-20181004' into staging

Various s390x updates:
- fix several struct definitions so that sparc hosts do not trip over
  unaligned accesses
- fence enabling huge pages for pre-3.1 machines
- sysbus init -> realize conversion
- fixes and improvements in tcg (instruction flags and AFP registers)

# gpg: Signature made Thu 04 Oct 2018 16:22:20 BST
# gpg:                using RSA key DECF6B93C6F02FAF
# gpg: Good signature from "Cornelia Huck <conny@cornelia-huck.de>"
# gpg:                 aka "Cornelia Huck <huckc@linux.vnet.ibm.com>"
# gpg:                 aka "Cornelia Huck <cornelia.huck@de.ibm.com>"
# gpg:                 aka "Cornelia Huck <cohuck@kernel.org>"
# gpg:                 aka "Cornelia Huck <cohuck@redhat.com>"
# Primary key fingerprint: C3D0 D66D C362 4FF6 A8C0  18CE DECF 6B93 C6F0 2FAF

* remotes/cohuck/tags/s390x-20181004:
  hw/s390x/s390-pci-bus: Convert sysbus init function to realize function
  s390x/tcg: refactor specification checking
  s390x/tcg: fix FP register pair checks
  s390x/tcg: handle privileged instructions via flags
  s390x/tcg: check for AFP-register, BFP and DFP data exceptions
  s390x/tcg: add instruction flags for floating point instructions
  s390x/tcg: support flags for instructions
  s390x/tcg: store in the TB flags if AFP is enabled
  s390x/tcg: factor out and fix DATA exception injection
  s390x: move tcg_s390_program_interrupt() into TCG code and mark it noreturn
  target/s390x: exception on non-aligned LPSW(E)
  s390x: Fence huge pages prior to 3.1
  hw/s390x/ioinst: Fix alignment problem in struct SubchDev
  hw/s390x/css: Remove QEMU_PACKED from struct SenseId
  hw/s390x/ipl: Fix alignment problems of S390IPLState members

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-10-05 16:05:06 +01:00
Peter Maydell
d21ee59ae5 nbd patches for 2018-10-03
Fix bugs in NBD_CMD_CACHE, drop support for oldstyle NBD server,
 minor build and doc fixes
 
 - Denis V. Lunev: nbd: fix NBD_CMD_CACHE negitiation... [retitled]
 - Vladimir Sementsov-Ogievskiy: 0/2 server: drop old-style negotiation
 - Eric Blake: qemu-nbd: Document --tls-creds
 - Vladimir Sementsov-Ogievskiy: nbd/server: fix NBD_CMD_CACHE
 - Peter Maydell: nbd: Don't take address of fields in packed structs
 -----BEGIN PGP SIGNATURE-----
 Comment: Public key at http://people.redhat.com/eblake/eblake.gpg
 
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 x+KcC2pL7Lmu6iJWGIo5hGSSsBP1aXp0MJ/dUD+jo13LWNwzGFmovNI4pUuEK2A=
 =0s7A
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/ericb/tags/pull-nbd-2018-10-03-v2' into staging

nbd patches for 2018-10-03

Fix bugs in NBD_CMD_CACHE, drop support for oldstyle NBD server,
minor build and doc fixes

- Denis V. Lunev: nbd: fix NBD_CMD_CACHE negitiation... [retitled]
- Vladimir Sementsov-Ogievskiy: 0/2 server: drop old-style negotiation
- Eric Blake: qemu-nbd: Document --tls-creds
- Vladimir Sementsov-Ogievskiy: nbd/server: fix NBD_CMD_CACHE
- Peter Maydell: nbd: Don't take address of fields in packed structs

# gpg: Signature made Thu 04 Oct 2018 15:19:32 BST
# gpg:                using RSA key A7A16B4A2527436A
# gpg: Good signature from "Eric Blake <eblake@redhat.com>"
# gpg:                 aka "Eric Blake (Free Software Programmer) <ebb9@byu.net>"
# gpg:                 aka "[jpeg image of size 6874]"
# Primary key fingerprint: 71C2 CC22 B1C4 6029 27D2  F3AA A7A1 6B4A 2527 436A

* remotes/ericb/tags/pull-nbd-2018-10-03-v2:
  nbd: fix NBD_FLAG_SEND_CACHE value
  nbd/server: drop old-style negotiation
  qemu-nbd: drop old-style negotiation
  qemu-nbd: Document --tls-creds
  nbd/server: fix NBD_CMD_CACHE
  nbd: Don't take address of fields in packed structs

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-10-05 14:52:54 +01:00
Marc-André Lureau
1195fa2b08 vl: list user creatable properties when 'help' is argument
Iterate over the writable class properties, sort and print them out
with the description if available.

Ex: qemu -object memory-backend-file,help
memory-backend-file.align=int
memory-backend-file.discard-data=bool
memory-backend-file.dump=bool - Set to 'off' to exclude from core dump
memory-backend-file.host-nodes=int - Binds memory to the list of NUMA host nodes
memory-backend-file.mem-path=string
memory-backend-file.merge=bool - Mark memory as mergeable
memory-backend-file.pmem=bool
memory-backend-file.policy=HostMemPolicy - Set the NUMA policy
memory-backend-file.prealloc=bool - Preallocate memory
memory-backend-file.share=bool - Mark the memory as private to QEMU or shared
memory-backend-file.size=int - Size of the memory region (ex: 500M)

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
2018-10-05 16:27:09 +04:00
Marc-André Lureau
033bfc5e0e hostmem: add some properties description
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
2018-10-05 16:27:09 +04:00
Marc-André Lureau
bb15cbc053 vl: handle -object help
List the user creatable objects.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
2018-10-05 16:27:09 +04:00
Marc-André Lureau
e569ba9232 tests/qom-proplist: check class properties iterator
This test failed before "fix iterating properties over a class".

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
2018-10-05 16:27:09 +04:00
Marc-André Lureau
94ef3b3092 tests/qom-proplist: check properties are not listed multiple times
And factor out a common function used by the follow class properties
iterator test.

Fix uninitialized "seentype" variable.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
2018-10-05 16:26:09 +04:00
Marc-André Lureau
9633017998 tests/qom-proplist: check duplicate "bv" property registration failed
"bv" is already a class property.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
2018-10-05 16:14:22 +04:00
Marc-André Lureau
7439a036d5 qom/object: register 'type' property as class property
Let's save a few byte in each object instance.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
2018-10-05 16:14:22 +04:00
Marc-André Lureau
684546d8e9 qom/object: fix iterating properties over a class
object_class_property_iter_init() starts from the given class, so the
next class should continue with the parent class.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
2018-10-05 16:14:22 +04:00
Marc-André Lureau
9cbef9d68e qemu-option: improve qemu_opts_print_help() output
Modify qemu_opts_print_help():
- to print expected argument type
- skip description if not available
- sort lines
- prefix with the list name (like qdev, to avoid confusion)
- drop 16-chars alignment, use a '-' as seperator for option name and
  description

For ex, "-spice help" output is changed from:

port             No description available
tls-port         No description available
addr             No description available
[...]
gl               No description available
rendernode       No description available

to:

spice.addr=str
spice.agent-mouse=bool (on/off)
spice.disable-agent-file-xfer=bool (on/off)
[...]
spice.x509-key-password=str
spice.zlib-glz-wan-compression=str

"qemu-img create -f qcow2 -o help", changed from:

size             Virtual disk size
compat           Compatibility level (0.10 or 1.1)
backing_file     File name of a base image
[...]
lazy_refcounts   Postpone refcount updates
refcount_bits    Width of a reference count entry in bits

to:

backing_file=str - File name of a base image
backing_fmt=str - Image format of the base image
cluster_size=size - qcow2 cluster size
[...]
refcount_bits=num - Width of a reference count entry in bits
size=size - Virtual disk size

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
2018-10-05 16:14:22 +04:00
Marc-André Lureau
e05979d0d7 qemu-option: add help fallback to print the list of options
QDev options accept 'help' (or '?', but that's problematic with shell
globbing) in the list of parameters, which is handy to list the
available options.

Unfortunately, this isn't built in QemuOpts. qemu_opts_parse_noisily()
seems to be the common path for command line options, so place a
fallback to print help, listing the available options.

This is quite handy, for example with qemu "-spice help".

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
2018-10-05 16:14:22 +04:00
Marc-André Lureau
85e33a2818 cutils: add qemu_pstrcmp0()
A char** variant of g_strcmp0().

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
2018-10-05 16:14:22 +04:00
Marc-André Lureau
a95db58f21 qdev-monitor: print help to stdout
qdev_device_help() is used from command line "-device help", or from
HMP "device_add". If used from command line, print help to stdout
(it is only printed on explicit demand).

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
2018-10-05 16:14:22 +04:00
Peter Maydell
638ad4ad17 Python queue, 2018-10-03
* Remove fixed serial device errors from device-crash-test
 * Remove unnecessary Python 2.6 compatibility code
 -----BEGIN PGP SIGNATURE-----
 
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 pYm3E0dnJzR8o0lC7YCX
 =h6yh
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/ehabkost/tags/python-next-pull-request' into staging

Python queue, 2018-10-03

* Remove fixed serial device errors from device-crash-test
* Remove unnecessary Python 2.6 compatibility code

# gpg: Signature made Thu 04 Oct 2018 03:17:34 BST
# gpg:                using RSA key 2807936F984DC5A6
# gpg: Good signature from "Eduardo Habkost <ehabkost@redhat.com>"
# Primary key fingerprint: 5A32 2FD5 ABC4 D3DB ACCF  D1AA 2807 936F 984D C5A6

* remotes/ehabkost/tags/python-next-pull-request:
  scripts/device-crash-test: Remove entries for serial devices
  Revert "tests: migration/guestperf Python 2.6 argparse compatibility"
  Revert "docker.py: Python 2.6 argparse compatibility"
  device-crash-test: No need for sys.path hack

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-10-05 12:45:10 +01:00
Gerd Hoffmann
edbc4b24bb edid: fix vendor default
"EMU" actually is "Emulex Corporation", so not a good idea to use that
by default.  Lets use the Red Hat vendor id instead, which is in line
with the pci ids which are allocated from Red Hat vendor ids too.

Vendor list is available from http://www.uefi.org/pnp_id_list

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id: 20181005091934.12143-1-kraxel@redhat.com
2018-10-05 11:26:56 +02:00
remy.noel
0ab90e6170 secondary-vga: delete mmio subregions upon exit
93abfc88bd introduced a reference cycle in
the vga-pci devices, preventing cleanup of the object upon hotblug.

This patch allows to break the cycle.

Signed-off-by: remy.noel <remy.noel@blade-group.com>
Message-id: 20181002121935.23706-1-remy.noel@blade-group.com

[ kraxel: delete the recently added edid region too ]

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2018-10-05 11:23:37 +02:00
Peter Maydell
5a358b39f5 hw/display/qxl: Suppress clang-7 warning about misaligned atomic operation
If QEMU is compiled with clang-7 it results in the warning:

hw/display/qxl.c:1884:19: error: misaligned or large atomic operation
may incur significant performance penalty [-Werror,-Watomic-alignment]
    old_pending = atomic_fetch_or(&d->ram->int_pending, le_events);
                  ^

This is because the Spice headers forgot to define the QXLRam struct
with the '__aligned__(4)' attribute.  clang 7 and newer will thus
warn that the access here to int_pending might not be 4-aligned
(because the QXLRam object d->ram points at might start at a
misaligned address).  In fact we set up d->ram in init_qxl_ram() so
it always starts at a 4K boundary, so we know the atomic access here
is OK.

Newer Spice versions (with Spice commit
beda5ec7a6848be20c0cac2a9a8ef2a41e8069c1) will fix the bug;
for older Spice versions, work around it by telling the compiler
explicitly that the alignment is OK using __builtin_assume_aligned().

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20180927155538.699-1-peter.maydell@linaro.org
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2018-10-05 11:21:17 +02:00
Eric Blake
1242429b20 edid: Ignore built binary
Added in commit 72d277a7.

Signed-off-by: Eric Blake <eblake@redhat.com>
Message-id: 20181004140522.945682-1-eblake@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2018-10-05 11:20:55 +02:00
Mark Cave-Ayland
422d33b8c8 Update OpenBIOS images to 441a84d3 built from submodule.
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
2018-10-05 09:25:14 +01:00
Denis V. Lunev
df91328ada nbd: fix NBD_FLAG_SEND_CACHE value
Commit bc37b06a5 added NBD_CMD_CACHE support, but used the wrong value
for NBD_FLAG_SEND_CACHE flag for negotiation. That commit picked bit 8,
which had already been assigned by the NBD specification to mean
NBD_FLAG_CAN_MULTI_CONN, and which was already implemented in the
Linux kernel as a part of stable userspace-kernel API since 4.10:

"bit 8, NBD_FLAG_CAN_MULTI_CONN: Indicates that the server operates
entirely without cache, or that the cache it uses is shared among all
connections to the given device. In particular, if this flag is
present, then the effects of NBD_CMD_FLUSH and NBD_CMD_FLAG_FUA
MUST be visible across all connections when the server sends its reply
to that command to the client. In the absense of this flag, clients
SHOULD NOT multiplex their commands over more than one connection to
the export.
...
bit 10, NBD_FLAG_SEND_CACHE: documents that the server understands
NBD_CMD_CACHE; however, note that server implementations exist
which support the command without advertising this bit, and
conversely that this bit does not guarantee that the command will
succeed or have an impact."

Consequences:
- a client trying to use NBD_CMD_CACHE per the NBD spec will not
see the feature as available from a qemu 3.0 server (not fatal,
clients already have to be prepared for caching to not exist)
- a client accidentally coded to the qemu 3.0 bit value instead
of following the spec may interpret NBD_CMD_CACHE as being available
when it is not (probably not fatal, the spec says the server should
gracefully fail unknown commands, and that clients of NBD_CMD_CACHE
should be prepared for failure even when the feature is advertised);
such clients are unlikely (perhaps only in unreleased Virtuozzo code),
and will disappear over time
- a client prepared to use multiple connections based on
NBD_FLAG_CAN_MULTI_CONN may cause data corruption when it assumes
that caching is consistent when in reality qemu 3.0 did not have
a consistent cache. Partially mitigated by using read-only
connections (where nothing needs to be flushed, so caching is
indeed consistent) or when using qemu-nbd with the default -e 1
(at most one client at a time); visible only when using -e 2 or
more for a writable export.

Thus the commit fixes negotiation flag in QEMU according to the
specification.

Signed-off-by: Denis V. Lunev <den@openvz.org>
CC: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
CC: Valery Vdovin <valery.vdovin@acronis.com>
CC: Eric Blake <eblake@redhat.com>
CC: Paolo Bonzini <pbonzini@redhat.com>
CC: qemu-stable@nongnu.org
Message-Id: <20181004100313.4253-1-den@openvz.org>
Reviewed-by: Eric Blake <eblake@redhat.com>
[eblake: enhance commit message, add defines for unimplemented flags]
Signed-off-by: Eric Blake <eblake@redhat.com>
2018-10-04 09:08:56 -05:00
Thomas Huth
b576d582ea hw/s390x/s390-pci-bus: Convert sysbus init function to realize function
The SysBusDeviceClass->init() interface is considered as a legacy interface
and there are currently some efforts going on to get rid of it. Thus let's
convert the init function in the s390x code to realize() instead.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <1538466491-2073-1-git-send-email-thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
2018-10-04 12:10:40 +02:00
David Hildenbrand
74fbae31cf s390x/tcg: refactor specification checking
We can fit this nicely into less LOC, without harming readability.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20180927130303.12236-10-david@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
2018-10-04 10:32:39 +02:00
David Hildenbrand
eba7170b55 s390x/tcg: fix FP register pair checks
Valid register pairs are 0/2, 1/3, 4/6, 5/7, 8/10, 9/11, 12/14, 13/15.

R1/R2 always selects the lower number, so the current checks are not
correct as e.g. 2/4 could be selected as a pair.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20180927130303.12236-9-david@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
2018-10-04 10:32:39 +02:00
David Hildenbrand
b51cc1d826 s390x/tcg: handle privileged instructions via flags
Let's check this also at a central place.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20180927130303.12236-8-david@redhat.com>
Acked-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
2018-10-04 10:32:39 +02:00