Age | Commit message (Collapse) | Author |
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Put in cpu_exec_initfn() what initializes the CPU,
and leave in cpu_exec_init() what adds it to the environment.
As cpu_exec_initfn() is called by all XX_cpu_initfn(), call it
directly in cpu_common_initfn().
cpu_exec_init() is now a realize function, it will be renamed
to cpu_exec_realizefn() and moved to the XX_cpu_realizefn()
function in a following patch.
Signed-off-by: Laurent Vivier <lvivier@redhat.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
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Along with it for machine versions 2.7 and older keep
it at 255.
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Radim Krčmář <rkrcmar@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
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It would prevent starting guest with incorrect configs
where interrupts couldn't be delivered to CPUs with
APIC IDs > 255.
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Radim Krčmář <rkrcmar@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
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Currently firmware uses 1 byte at 0x5F offset in RTC CMOS
to get number of CPUs present at boot. However 1 byte is
not enough to handle more than 255 CPUs. So add a new
fw_cfg file that would allow QEMU to tell it.
For compat reasons add file only for machine types that
support more than 255 CPUs.
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
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so that it would be possible to increase maxcpus limit
for x86 target. Keep spapr/virt_arm at limit they used
to have 255.
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
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Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
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Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Radim Krčmář <rkrcmar@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
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SDM: x2APIC State Transitions:
State Changes From xAPIC Mode to x2APIC Mode
"
Any APIC ID value written to the memory-mapped
local APIC ID register is not preserved
"
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Radim Krčmář <rkrcmar@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
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APIC ID should be restored to initial APIC ID
state after Reset and Power-On.
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
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ACPI ID is 32 bit wide on CPUs with x2APIC support.
Extend 'id' property to support it.
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
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That's enough to make old code that depends on it
to prevent QEMU starting with more than 255 CPUs.
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
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Switch to modern cpu hotplug at machine startup time if
a cpu present at boot has apic-id in range unsupported
by legacy cpu hotplug interface (i.e. > 254), to avoid
killing QEMU from legacy cpu hotplug code with error:
"acpi: invalid cpu id: #apic-id#"
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
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Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
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Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
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* KVM run_on_cpu fix (Alex)
* atomic usage fixes (Emilio, me)
* hugetlbfs alignment fix (Haozhong)
* CharBackend refactoring (Marc-André)
* test-i386 fixes (me)
* MemoryListener optimizations (me)
* Miscellaneous bugfixes (me)
* iSER support (Roy)
* --version formatting (Thomas)
# gpg: Signature made Mon 24 Oct 2016 14:46:19 BST
# gpg: using RSA key 0xBFFBD25F78C7AE83
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>"
# gpg: aka "Paolo Bonzini <pbonzini@redhat.com>"
# Primary key fingerprint: 46F5 9FBD 57D6 12E7 BFD4 E2F7 7E15 100C CD36 69B1
# Subkey fingerprint: F133 3857 4B66 2389 866C 7682 BFFB D25F 78C7 AE83
* remotes/bonzini/tags/for-upstream: (50 commits)
exec.c: workaround regression caused by alignment change in d2f39ad
char: remove explicit_be_open from CharDriverState
char: use common error path in qmp_chardev_add
char: replace avail_connections
char: remove unused qemu_chr_fe_event
char: use an enum for CHR_EVENT
char: remove unused CHR_EVENT_FOCUS
char: move fe_open in CharBackend
char: remove explicit_fe_open, use a set_handlers argument
char: rename chr_close/chr_free
char: move front end handlers in CharBackend
tests: start chardev unit tests
char: make some qemu_chr_fe skip if no driver
char: replace qemu_chr_claim/release with qemu_chr_fe_init/deinit
vhost-user: only initialize queue 0 CharBackend
char: fold qemu_chr_set_handlers in qemu_chr_fe_set_handlers
char: use qemu_chr_fe* functions with CharBackend argument
colo: claim in find_and_check_chardev
char: rename some frontend functions
char: remaining switch to CharBackend in frontend
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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Commit d2f39ad "exec.c: Ensure right alignment also for file backed ram"
added an additional alignment requirement on the size of backend file
besides the previous page size. On x86, the alignment is changed from
4KB in QEMU 2.6 to 2MB in QEMU 2.7.
This change breaks certain usages in QEMU 2.7 on x86, e.g.
-object memory-backend-file,id=mem1,mem-path=/tmp/,size=$SZ
-device pc-dimm,id=dimm1,memdev=mem1
where $SZ is multiple of 4KB but not 2MB (e.g. 1023M). QEMU 2.7
reports the following error message and aborts:
qemu-system-x86_64: -device pc-dimm,memdev=mem1,id=nv1: backend memory size must be multiple of 0x200000
The same regression may also happen in other platforms as indicated by
Igor Mammedov. This change is however necessary for s390 according to
the commit message of d2f39ad, so we workaround the regression by taking
the change only on s390.
Signed-off-by: Haozhong Zhang <haozhong.zhang@intel.com>
Reported-by: "Xu, Anthony" <anthony.xu@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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It's only used in qmp_chardev_add(), so use a create() argument instead.
Also switched to typedef functions for CharDriverParse/CharDriverCreate.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20161022100951.19562-7-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20161022100951.19562-6-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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No need to count the users of a CharDriverState, it can rely on the fact
of whether there is a CharBackend associated or if there is enough space
in the muxer.
Simplify and fold chr_mux_new_fe() in qemu_chr_fe_init() since there is
a single user now. Also switch from fprintf to raising error instead.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20161022100951.19562-5-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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I introduced this function in d61b0c9a2f7f, but it isn't
used. Furthermore, it was incomplete, as it would need to translate QEMU
chr events to Spice port events.
(presumably it was used in the follow-up NBD-spice series that was not
completed: http://lists.gnu.org/archive/html/qemu-devel/2013-11/msg02024.html)
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20161022100951.19562-4-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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This may help to catch unhandled cases, and avoid having to maintain
numbering.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20161022100951.19562-3-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Usage has long been removed, since commit f220174de8d9.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20161022100951.19562-2-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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The fe_open state belongs to front end.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20161022100951.19562-1-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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No need to keep explicit_fe_open around if it affects only a
qemu_chr_fe_set_handlers(). Use an additional argument instead.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20161022095318.17775-24-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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The function is used to free the backend opaque pointer, let's name it
accordingly.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20161022095318.17775-23-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Since the hanlders are associated with a CharBackend, rather than the
CharDriverState, it is more appropriate to store in CharBackend. This
avoids the handler copy dance in qemu_chr_fe_set_handlers() then
mux_chr_update_read_handler(), by storing the CharBackend pointer
directly.
Also a mux CharDriver should go through mux->backends[focused], since
chr->be will stay NULL. Before that, it was possible to call
chr->handler by mistake with surprising results, for ex through
qemu_chr_be_can_write(), which would result in calling the last set
handler front end, not the one with focus.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20161022095318.17775-22-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20161022095318.17775-21-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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In most cases, front ends do not care about the side effect of
CharBackend, so we can simply skip the checks and call the qemu_chr_fe
functions even without associated CharDriver.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20161022095318.17775-20-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Now that all front end use qemu_chr_fe_init(), we can move chardev
claiming in init(), and add a function deinit() to release the chardev
and cleanup handlers.
The qemu_chr_fe_claim_no_fail() for property are gone, since the
property will raise an error instead. In other cases, where there is
already an error path, an error is raised instead. Finally, other cases
are handled by &error_abort in qemu_chr_fe_init().
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20161022095318.17775-19-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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All the queues share the same chardev. Initialize only the first queue
CharBackend, and pass it to other queues. This will allow to claim the
chardev only once in a later change.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20161022095318.17775-18-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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qemu_chr_add_handlers*() have been removed in previous change, so the
common qemu_chr_set_handlers() is no longer needed.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20161022095318.17775-17-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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This also switches from qemu_chr_add_handlers() to
qemu_chr_fe_set_handlers(). Note that qemu_chr_fe_set_handlers() now
takes the focus when fe_open (qemu_chr_add_handlers() did take the
focus)
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20161022095318.17775-16-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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This factors out claiming of chardev, and changes the call to
non-fatal to return an error like the rest of the chardev checks.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20161022095318.17775-15-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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qemu_chr_accept_input() and qemu_chr_disconnect() are only used by
frontend, so use qemu_chr_fe prefix.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20161022095318.17775-14-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Similar to previous change, for the remaining CharDriverState front ends
users.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20161022095318.17775-13-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Store the property in a CharBackend instead of CharDriverState*. This
also replace systematically chr by chr.chr to access the
CharDriverState*. The following patches will replace it with calls to
qemu_chr_fe CharBackend functions.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20161022095318.17775-12-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Start using qemu_chr_fe* CharBackend functions:
initialize a CharBackend and use qemu_chr_fe_set_handlers().
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20161022095318.17775-11-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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This new structure is meant to keep the details associated with a char
driver usage. On initialization, it gets a tag from the mux backend.
It can change its handlers thanks to qemu_chr_fe_set_handlers().
This structure is introduced so that all frontend will be moved to hold
and use a CharBackend. This will allow to better track char usage and
allocation, and help prevent some memory leaks or corruption.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20161022095318.17775-10-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Make qemu_chr_add_handlers_full() aware of mux handling. This allows
introduction of a tag associated with the fe handlers and a
qemu_chr_set_handlers() function to set the handler for a particular
tag. That will allow to get rid of qemu_chr_add_handlers*() in later
changes, in favor of qemu_chr_fe_set_handler().
To this end, chr_update_read_handler callback is enhanced with a tag
argument, and mux_chr_update_read_handler() is splitted in new
functions: mux_chr_new_handler_tag(), mux_chr_set_handlers(),
mux_set_focus().
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20161022095318.17775-9-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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ASAN complains about buffer overflow when running:
aarch64-softmmu/qemu-system-aarch64 -machine xilinx-zynq-a9
==476==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x602000035e38 at pc 0x000000f75253 bp 0x7ffc597e0ec0 sp 0x7ffc597e0eb0
READ of size 8 at 0x602000035e38 thread T0
#0 0xf75252 in xilinx_spips_realize hw/ssi/xilinx_spips.c:623
#1 0xb9ef6c in device_set_realized hw/core/qdev.c:918
#2 0x129ae01 in property_set_bool qom/object.c:1854
#3 0x1296e70 in object_property_set qom/object.c:1088
#4 0x129dd1b in object_property_set_qobject qom/qom-qobject.c:27
#5 0x1297168 in object_property_set_bool qom/object.c:1157
#6 0xb9aeac in qdev_init_nofail hw/core/qdev.c:358
#7 0x78a5bf in zynq_init_spi_flashes /home/elmarco/src/qemu/hw/arm/xilinx_zynq.c:125
#8 0x78af60 in zynq_init /home/elmarco/src/qemu/hw/arm/xilinx_zynq.c:238
#9 0x998eac in main /home/elmarco/src/qemu/vl.c:4534
#10 0x7f96ed692730 in __libc_start_main (/lib64/libc.so.6+0x20730)
#11 0x41d0a8 in _start (/home/elmarco/src/qemu/aarch64-softmmu/qemu-system-aarch64+0x41d0a8)
0x602000035e38 is located 0 bytes to the right of 8-byte region [0x602000035e30,0x602000035e38)
allocated by thread T0 here:
#0 0x7f970b014e60 in malloc (/lib64/libasan.so.3+0xc6e60)
#1 0x7f96f15b0e18 in g_malloc (/lib64/libglib-2.0.so.0+0x4ee18)
#2 0xb9ef6c in device_set_realized hw/core/qdev.c:918
#3 0x129ae01 in property_set_bool qom/object.c:1854
#4 0x1296e70 in object_property_set qom/object.c:1088
#5 0x129dd1b in object_property_set_qobject qom/qom-qobject.c:27
#6 0x1297168 in object_property_set_bool qom/object.c:1157
#7 0xb9aeac in qdev_init_nofail hw/core/qdev.c:358
#8 0x78a5bf in zynq_init_spi_flashes /home/elmarco/src/qemu/hw/arm/xilinx_zynq.c:125
#9 0x78af60 in zynq_init /home/elmarco/src/qemu/hw/arm/xilinx_zynq.c:238
#10 0x998eac in main /home/elmarco/src/qemu/vl.c:4534
#11 0x7f96ed692730 in __libc_start_main (/lib64/libc.so.6+0x20730)
s->spi is allocated with the size of num_busses which may be 1 (by
default). Change to use a loop up to s->num_busses also for the
call to ssi_auto_connect_slaves().
Reported-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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The CharDriverState.init() callback is no longer set since commit
a61ae7f88ce and thus unused. The only user, the malta FGPA display has
been converted to use an event "opened" callback instead.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20161022095318.17775-7-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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The CharDriverState.init() callback was introduced in commit
ceecf1d158. It is only called from text_console_do_init(), but it is no
longer set since commit a61ae7f88 (init assignment has been removed by
accident).
It seems correct to use an event callback instead and print the console
text on CHR_EVENT_OPENED. That way we can remove the single user of
CharDriverState init().
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20161022095318.17775-6-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Since commit b6607a1a204d, serial_hds_isa_init() was introduced to
factor out serial_isa_init() loops. However, sun4uv shouldn't start from
0 when there is a mm serial on 0 already. Add a "from" argument to
serial_hds_isa_init().
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20161022095318.17775-5-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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It should return the number of written bytes.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20161022095318.17775-4-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Found by reviewing the code, win_stdio_close() is called by
qemu_chr_free() which then call qemu_chr_free_common() taking care of
freeing CharDriverState*.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20161022095318.17775-3-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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DEFINE_PROP_CHR is not used (rng is not of TYPE_DEVICE)
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20161022095318.17775-2-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20161011152012.3228-1-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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16550A UART device uses an oscillator to generate frequencies
(baud base), which decide communication speed. This speed could
be changed by dividing it by a divider. If the divider is
greater than the baud base, speed is set to zero, leading to a
divide by zero error. Add check to avoid it.
Reported-by: Huawei PSIRT <psirt@huawei.com>
Signed-off-by: Prasad J Pandit <pjp@fedoraproject.org>
Message-Id: <1476251888-20238-1-git-send-email-ppandit@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Avoid walking the FlatView of all address spaces. Most of the
address spaces will have no log_sync callback on their listeners.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Only return a nonzero dirty_log_mask for RAM/ROM memory regions.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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