When ever USB keyboard is used, e.g. '-usbdevice keyboard' pressing
caps lock key send 0x32 hid code, which is treated as backslash.
Instead it should be 0x39 code. This affects sending uppercase keys,
as they typed whith caps lock active.
While on x86 this can be workarounded by using ps/2 protocol. On
Power it is crusial as we don't have anything else than USB.
This is fixes guest automation tasts over vnc.
Signed-off-by: Dinar Valeev <dvaleev@suse.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Add new query vnc qmp command, for the lack of better ideas just name it
"query-vnc-servers". Changes over query-vnc:
* It returns a list of vnc servers, so multiple vnc server instances
are covered.
* Each vnc server returns a list of server sockets. Followup patch
will use that to also report websockets. In case we add support for
multiple server sockets server sockets (to better support ipv4+ipv6
dualstack) we can add them to the list too.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Also track the number of connections in "connecting" and "shared" state
(in addition to the "exclusive" state). Apply a configurable limit to
these connections.
The logic to apply the limit to connections in "shared" state is pretty
simple: When the limit is reached no new connections are allowed.
The logic to apply the limit to connections in "connecting" state (this
is the state you are in *before* successful authentication) is
slightly different: A new connect kicks out the oldest client which is
still in "connecting" state. This avoids a easy DoS by unauthenticated
users by simply opening connections until the limit is reached.
Cc: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This patch adds a display= parameter to the vnc options. This allows to
bind a vnc server instance to a specific display, allowing to create a
multiseat setup with a vnc server for each seat.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This patch switches vnc over to QemuOpts, and it (more or less
as side effect) allows multiple vnc server instances.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
In case the display id is "default" (which is the one you get if you
don't explicitly assign one) we keep the old name scheme, without
display, for backward compatibility reasons.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Gonglei <arei.gonglei@huawei.com>
DisplayState isn't used anywhere, drop it. Add the vnc server ID as
parameter instead, so it is possible to specify the server instance.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Gonglei <arei.gonglei@huawei.com>
Replace with a vnc_displays list, so we can have multiple vnc server
instances. Add vnc_server_find function to lookup a display by id.
With no id supplied return the first vnc server, for backward
compatibility reasons.
It is not possible (yet) to actually create multiple vnc server
instances.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Gonglei <arei.gonglei@huawei.com>
Teach qemu to set up a Spice server with a UNIX socket using the
following arguments -spice unix,addr=path.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
SoundBlaster 16 emulation is very broken and consumes a lot of CPU, but a
small fix was suggested offlist and it is enough to fix some games. I
got Epic Pinball to work with the "SoundBlaster Clone" option.
The processing of the interrupt register is wrong due to two missing
"not"s. This causes the interrupt flag to remain set even after the
Acknowledge ports have been read (0x0e and 0x0f).
The line was introduced by commit 85571bc (audio merge (malc), 2004-11-07),
but the code might have been broken before because I did not look closely
at the huge patches from 10 years ago.
Reported-by: Joshua Bair <j_bair@bellsouth.net>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: qemu-stable@nongnu.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Remove sparc_opcode_archs and the macros which use it, because we don't
use them in QEMU and they provoke clang warnings:
disas/sparc.c:307:39: warning: unused variable 'sparc_opcode_archs' [-Wunused-const-variable]
static const struct sparc_opcode_arch sparc_opcode_archs[] =
^
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
The function gen_load_trap_state_at_tl() is only used in the softmmu
configs; wrap it in #ifndef CONFIG_USER_ONLY to avoid clang compiler
warnings in linux-user builds.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Move the is_translating_asi() inside the TARGET_SPARC64 ifdef (and remove
the unimplemented 32-bit codepath), as it is only called from TARGET_SPARC64
code. This fixes a clang 3.4 unused-function warning.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
The address_mask() and asi_address_mask() functions are only used in
TARGET_SPARC64 configs, so guard with ifdefs to avoid warnings about
unused functions in 32-bit builds.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
The functions gen_op_addi_cc() and gen_op_subi_cc() are unused; remove them.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
* load/store helper cleanup
* drop TARGET_HAS_ICE define and checks
* scripts/qapi-types.py: Add dummy member to empty structs
* cpu_ldst.h: Don't define helpers if MMU_MODE*_SUFFIX not defined
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=uCSO
-----END PGP SIGNATURE-----
Merge remote-tracking branch 'remotes/pmaydell/tags/pull-misc-20150120' into staging
Miscellaneous cross-tree patches:
* load/store helper cleanup
* drop TARGET_HAS_ICE define and checks
* scripts/qapi-types.py: Add dummy member to empty structs
* cpu_ldst.h: Don't define helpers if MMU_MODE*_SUFFIX not defined
# gpg: Signature made Tue 20 Jan 2015 15:43:38 GMT using RSA key ID 14360CDE
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>"
* remotes/pmaydell/tags/pull-misc-20150120:
cpu_ldst.h: Don't define helpers if MMU_MODE*_SUFFIX not defined
cpu_ldst.h, cpu-all.h, bswap.h: Update documentation on ld/st accessors
cpu_ldst_template.h: Drop unused cpu_ldfq/stfq/ldfl/stfl accessors
cpu_ldst.h: Drop unused _raw macros, saddr() and laddr()
cpu_ldst_template.h: Use ld*_p directly rather than via ld*_raw macros
cpu_ldst.h: Use inline functions for usermode cpu_ld/st accessors
cpu_ldst.h: Remove unused very short ld*/st* defines
cpu_ldst.h: Drop unused ld/st*_kernel defines
target-mips: Don't use _raw load/store accessors
linux-user/main.c (m68k): Use get_user_u16 rather than lduw in cpu_loop
linux-user/vm86.c: Use cpu_ldl_data &c rather than plain ldl &c
bsd-user/elfload.c: Don't use ldl() or ldq_raw()
linux-user/elfload.c: Don't use _raw accessor functions
target-sparc: Don't use {ld, st}*_raw functions
monitor.c: Use ld*_p() instead of ld*_raw()
cpu_ldst.h: Remove unused ldul_ macros
exec.c: Drop TARGET_HAS_ICE define and checks
scripts/qapi-types.py: Add dummy member to empty structs
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Not all targets define a full set of suffix strings for the
NB_MMU_MODES that they have. In this situation, don't define any
helper functions for that mode, rather than defining helper functions
with no suffix at all. The MMU mode is still functional; it is merely
not directly accessible via cpu_ld*_MODE from target helper functions.
Also add an "NB_MMU_MODES >= 2" check to the definition of the mode 1
helpers -- some targets only define one MMU mode.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Message-id: 1421432008-6786-1-git-send-email-peter.maydell@linaro.org
Add documentation of what the cpu_*_* accessors look like.
Correct some minor errors in the existing documentation of the
direct _p accessor family. Remove the near-duplicate comment
on the _p accessors from cpu-all.h and replace it with a reference
to the comment in bswap.h.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 1421334118-3287-16-git-send-email-peter.maydell@linaro.org
The cpu_ldfq/stfq/ldfl/stfl accessors for loading and storing
float32 and float64 are completely unused, so delete them.
(The union they use for converting from the float32/float64
type to uint32_t or uint64_t is the wrong way to do it anyway:
they should be using make_float* and float*_val.)
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 1421334118-3287-15-git-send-email-peter.maydell@linaro.org
The _raw macros and their helpers saddr() and laddr() are now
totally unused -- delete them.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 1421334118-3287-14-git-send-email-peter.maydell@linaro.org
The ld*_raw and st*_raw macros are now only used within the code
produced by cpu_ldst_template.h, and only in three places.
Expand these out to just call the ld_p and st_p functions directly.
Note that in all the callsites the address argument is a uintptr_t,
so we can drop that part of the double-cast used in the saddr() and
laddr() macros.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 1421334118-3287-13-git-send-email-peter.maydell@linaro.org
Use inline functions rather than macros for cpu_ld/st accessors
for the *-user configurations, as we already do for softmmu.
This has a two advantages:
* we can actually typecheck our arguments
* we don't need to leak the _raw macros everywhere
Since the _kernel functions were only used by target-i386/seg_helper.c,
put the definitions for them in that file too. (It already has the
similar template include code to define them for the softmmu case,
so it makes sense to have it deal with defining them for user-only.)
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 1421334118-3287-12-git-send-email-peter.maydell@linaro.org
The very short ld*/st* defines are now not used anywhere; delete them.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 1421334118-3287-11-git-send-email-peter.maydell@linaro.org
The ld*_kernel and st*_kernel defines are not used anywhere;
delete them.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 1421334118-3287-10-git-send-email-peter.maydell@linaro.org
Use cpu_*_data instead of the direct *_raw load/store accessors.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 1421334118-3287-9-git-send-email-peter.maydell@linaro.org
In the m68k cpu_loop() use get_user_u16 to read the immediate for
the simcall rahter than lduw, to bring it into line with how other
archs do it and to remove another user of the ldl family of functions.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 1421334118-3287-8-git-send-email-peter.maydell@linaro.org
Use the cpu_ld*_data and cpu_st*_data family of functions to access
guest memory in vm86.c rather than the very short-named ldl/stl functions.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 1421334118-3287-7-git-send-email-peter.maydell@linaro.org
Use get_user_u64() and get_user_ual() instead of the ldl() and
ldq_raw() functions.
[Note that this change is not compile tested as it is actually
in dead code -- none of the bsd-user configurations are PPC.]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 1421334118-3287-6-git-send-email-peter.maydell@linaro.org
The _raw accessor functions are an implementation detail that has
leaked out to some callsites. Use get_user_u64() instead of ldq_raw().
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 1421334118-3287-5-git-send-email-peter.maydell@linaro.org
Instead of using the _raw family of ld/st accessor functions, use
cpu_*_data. All this code is CONFIG_USER_ONLY, so the two are the
same semantically, but the _raw functions are really a detail of
the implementation which has leaked into a few callsites like this one.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 1421334118-3287-4-git-send-email-peter.maydell@linaro.org
The monitor code for doing a memory_dump() was using ld*_raw() to do
target-CPU accesses out of a local buf[] array. The correct functions
for this purpose are ld*_p(), which take a host pointer, rather than
ld*_raw(), which take an integer representing a guest address and
are somewhat meaningless in softmmu configurations. Nobody noticed
because for softmmu the _raw functions are the same as ldl_p but
with some extra casts thrown in. Switch to using the correct functions
instead.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 1421334118-3287-3-git-send-email-peter.maydell@linaro.org
The five ldul_ macros are not used anywhere and are marked up with an XXX
comment. "ldul" is a non-standard prefix for our family of load instructions:
we don't mark 32-bit accesses for signedness because they return a 32 bit
quantity. So just delete them.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Message-id: 1421334118-3287-2-git-send-email-peter.maydell@linaro.org
The TARGET_HAS_ICE #define is intended to indicate whether a target-*
guest CPU implementation supports the breakpoint handling. However,
all our guest CPUs have that support (the only two which do not
define TARGET_HAS_ICE are unicore32 and openrisc, and in both those
cases the bp support is present and the lack of the #define is just
a bug). So remove the #define entirely: all new guest CPU support
should include breakpoint handling as part of the basic implementation.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Message-id: 1420484960-32365-1-git-send-email-peter.maydell@linaro.org
Make sure that all generated C structs have at least one field; this
avoids potential issues with attempting to malloc space for
zero-length structs in C (g_malloc(sizeof struct) would return NULL).
It also avoids an incompatibility with C++ (where an empty struct is
size 1); that isn't important to us now but might be in future.
Generated empty structures look like this:
struct Abort
{
char qapi_dummy_field_for_empty_struct;
};
This silences clang warnings like:
./qapi-types.h:3752:1: warning: empty struct has size 0 in C, size 1 in C++ [-Wextern-c-compat]
struct Abort
^
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-id: 1419359069-16611-1-git-send-email-peter.maydell@linaro.org
* remotes/sstabellini/xen-2015-01-20-v2:
xen: add a lock for the mapcache
xen: do not use __-named variables in mapcache
Xen: Use the ioreq-server API when available
Add device listener interface
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Extend the existing dummy mapcache_lock/unlock macros to cover all of
xen-mapcache.c. This prepares for unlocked memory access, when parts
of exec.c will not be protected by the BQL.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
The ioreq-server API added to Xen 4.5 offers better security than
the existing Xen/QEMU interface because the shared pages that are
used to pass emulation request/results back and forth are removed
from the guest's memory space before any requests are serviced.
This prevents the guest from mapping these pages (they are in a
well known location) and attempting to attack QEMU by synthesizing
its own request structures. Hence, this patch modifies configure
to detect whether the API is available, and adds the necessary
code to use the API if it is.
Signed-off-by: Paul Durrant <paul.durrant@citrix.com>
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
The Xen ioreq-server API, introduced in Xen 4.5, requires that PCI device
models explicitly register with Xen for config space accesses. This patch
adds a listener interface into qdev-core which can be used by the Xen
interface code to monitor for arrival and departure of PCI devices.
Signed-off-by: Paul Durrant <paul.durrant@citrix.com>
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.22 (GNU/Linux)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=Rrau
-----END PGP SIGNATURE-----
Merge remote-tracking branch 'remotes/kraxel/tags/pull-console-20150119-1' into staging
ui: add shared surface format negotiation.
# gpg: Signature made Mon 19 Jan 2015 12:47:36 GMT using RSA key ID D3E87138
# 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>"
* remotes/kraxel/tags/pull-console-20150119-1:
ui/sdl2: Support shared surface for more pixman formats
ui/sdl: Support shared surface for more pixman formats
ui/gtk: Support shared surface for most pixman formats
ui/spice: Support shared surface for most pixman formats
ui/vnc: Support shared surface for most pixman formats
ui/pixman: add qemu_pixman_check_format
ui: Add dpy_gfx_check_format() to check backend shared surface support
ui: Make qemu_default_pixman_format() return 0 on unsupported formats
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
At least all the ones I've tested. We make the assumption that
SDL is going to be better at conversion than we are.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
[ kraxel: minor format tweaks ]
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
