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mingw32 seems to want the declaration to also carry the weak attribute.
Strangely, gcc on Linux absolutely does not want the declaration to be marked
as weak. This may not be the right fix, but it seems to do the trick.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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* stefanha/trivial-patches:
ivshmem, qdev-monitor: fix order of qerror parameters
iov_send_recv(): Handle zero bytes case even if OS does not
framebuffer: Fix spelling in comment (leight -> height)
Spelling fix in comment (peripherans -> peripherals)
docs: Fix spelling (propery -> property)
trace: Fix "Qemu" -> "QEMU"
cputlb.c: Fix out of date comment
ehci: fix assertion typo
Makefile: Avoid explicit list of directories in clean target
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* kwolf/for-anthony:
qemu-iotests: Fix 030 after switch to GenericError
block: Flush parent to OS with cache=unsafe
iscsi: Fix NULL dereferences / races between task completion and abort
monitor: Clean up fd sets on monitor disconnect
block: Enable qemu_open/close to work with fd sets
block: Convert close calls to qemu_close
block: Convert open calls to qemu_open
block: Prevent detection of /dev/fdset/ as floppy
qapi: Introduce add-fd, remove-fd, query-fdsets
qemu-char: Add MSG_CMSG_CLOEXEC flag to recvmsg
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* qemu-kvm/uq/master:
update-linux-headers.sh: Pull in asm-generic/kvm_para.h
kvmvapic: Disable if there is insufficient memory
kvm: i8254: Finish time conversion fix
kvm: i8254: Cache kernel clock offset in KVMPITState
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* stefanha/tracing:
trace/simple: Replace asprintf by g_strdup_printf
trace/simple: Fix compiler warning for 32 bit hosts
trace: avoid pointer aliasing in trace_record_finish()
trace: drop unused TraceBufferRecord->next_tbuf_idx field
trace: remove unnecessary write_to_buffer() typecasting
trace: rename TraceRecordHeader to TraceLogHeader
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Now that the QERR_ macros no longer contain a json dictionary,
the order of some parameters needs to be fixed for them to appear
correctly.
Signed-off-by: Alberto Garcia <agarcia@igalia.com>
Reviewed-by: Luiz Capitulino <lcapitulino@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
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POSIX allows sendmsg() and recvmsg() to fail EMSGSIZE if passed a zero
msg.msg_iovlen (in particular the MacOS X implementation will do this).
Handle the case where iov_send_recv() is passed a zero byte count
explicitly, to avoid accidentally depending on the OS to treat zero
msg_iovlen as a no-op.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Acked-by: Michael Tokarev <mjt@tls.msk.ru>
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
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Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
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Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
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Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
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Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
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The comment about the return address from get_page_addr_code() was
well out of date as phys_ram_base has not existed for some time.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
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Signed-off-by: Alejandro Martinez Ruiz <alex@securiforest.com>
Reviewed-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
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Avoid having an explicit list of directories in the 'clean'
target by using 'find' to remove all .o and .d files instead.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
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Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
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Commit 29cdb251 already added a comment that no unnecessary flushes to
disk will occur, this patch makes the code even get to the point of the
comment. This is mostly theoretical because in practice we only stack
one format on top of one protocol, the former implementing flush_to_os
and the latter only flush_to_disk. It starts to matter when drivers that
are not on top implement flush_to_os.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
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Signed-off-by: Stefan Priebe <s.priebe@profihost.ag>
Acked-by: Ronnie Sahlberg <ronniesahlberg@gmail.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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Fd sets are shared by all monitor connections. Fd sets are considered
to be in use while at least one monitor is connected. When the last
monitor disconnects, all fds that are members of an fd set with no
outstanding dup references are closed. This prevents any fd leakage
associated with a client disconnect prior to using a passed fd.
Signed-off-by: Corey Bryant <coreyb@linux.vnet.ibm.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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When qemu_open is passed a filename of the "/dev/fdset/nnn"
format (where nnn is the fdset ID), an fd with matching access
mode flags will be searched for within the specified monitor
fd set. If the fd is found, a dup of the fd will be returned
from qemu_open.
Signed-off-by: Corey Bryant <coreyb@linux.vnet.ibm.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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This patch converts all block layer close calls, that correspond
to qemu_open calls, to qemu_close.
Signed-off-by: Corey Bryant <coreyb@linux.vnet.ibm.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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This patch converts all block layer open calls to qemu_open.
Note that this adds the O_CLOEXEC flag to the changed open paths
when the O_CLOEXEC macro is defined.
Signed-off-by: Corey Bryant <coreyb@linux.vnet.ibm.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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Signed-off-by: Corey Bryant <coreyb@linux.vnet.ibm.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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This patch adds support that enables passing of file descriptors
to the QEMU monitor where they will be stored in specified file
descriptor sets.
A file descriptor set can be used by a client like libvirt to
store file descriptors for the same file. This allows the
client to open a file with different access modes (O_RDWR,
O_WRONLY, O_RDONLY) and add/remove the passed fds to/from an fd
set as needed. This will allow QEMU to (in a later patch in this
series) "open" and "reopen" the same file by dup()ing the fd in
the fd set that corresponds to the file, where the fd has the
matching access mode flag that QEMU requests.
The new QMP commands are:
add-fd: Add a file descriptor to an fd set
remove-fd: Remove a file descriptor from an fd set
query-fdsets: Return information describing all fd sets
Note: These commands are not compatible with the existing getfd
and closefd QMP commands.
Signed-off-by: Corey Bryant <coreyb@linux.vnet.ibm.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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Set the close-on-exec flag for the file descriptor received
via SCM_RIGHTS.
Signed-off-by: Corey Bryant <coreyb@linux.vnet.ibm.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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Add asm-generic/kvm_para.h to the set of non-architecture specific
KVM kernel headers we copy into QEMU. This header may be included
by an architecture's kvm_para.h header.
Reviewed-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
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We need at least 1M of RAM to map the option ROM. Otherwise, we will
corrupt host memory or even crash:
$ qemu-system-x86_64 -nodefaults --enable-kvm -vnc :0 -m 640k
Segmentation fault (core dumped)
Reported-and-tested-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
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0cdd3d1444 fixed reading back the counter load time from the kernel
while assuming the kernel would always update its load time on writing
the state. That is only true for channel 1, and so pit_get_channel_info
returned wrong output pin states for high counter values.
Fix this by applying the offset also on kvm_pit_put. Now we also need to
update the offset when we write the state while the VM is stopped as it
keeps on changing in that state.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
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To prepare the final fix for clock calibration issues with the in-kernel
PIT, we want to cache the offset between vmclock and the clock used by
the in-kernel PIT. So far, we only need to update it when the VM state
changes between running and stopped because we only read the in-kernel
PIT state while the VM is running.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
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* origin/master:
linux-user: ARM: Ignore immediate value for svc in thumb mode
linux-user: Use init_guest_space when -R and -B are specified
linux-user: Factor out guest space probing into a function
flatload: fix bss clearing
linux-user: make host_to_target_cmsg support SO_TIMESTAMP cmsg_type
linux-user: make do_setsockopt support SOL_RAW ICMP_FILTER socket option
linux-user: pass sockaddr from host to target
x86: switch to AREG0 free mode
x86: avoid AREG0 in segmentation helpers
x86: avoid AREG0 for misc helpers
x86: use wrappers for memory access helpers
x86: avoid AREG0 for SMM helpers
x86: avoid AREG0 for SVM helpers
x86: avoid AREG0 for integer helpers
x86: avoid AREG0 for condition code helpers
x86: avoid AREG0 for FPU helpers
linux-user: Move target_to_host_errno_table[] setup out of ioctl loop
linux-user: Fix SNDCTL_DSP_MAP{IN, OUT}BUF ioctl definitions
linux-user: Fix incorrect TARGET_BLKBSZGET, TARGET_BLKBSZSET
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* 'linux-user.next' of git://git.linaro.org/people/pmaydell/qemu-arm:
linux-user: ARM: Ignore immediate value for svc in thumb mode
linux-user: Use init_guest_space when -R and -B are specified
linux-user: Factor out guest space probing into a function
flatload: fix bss clearing
linux-user: make host_to_target_cmsg support SO_TIMESTAMP cmsg_type
linux-user: make do_setsockopt support SOL_RAW ICMP_FILTER socket option
linux-user: pass sockaddr from host to target
linux-user: Move target_to_host_errno_table[] setup out of ioctl loop
linux-user: Fix SNDCTL_DSP_MAP{IN, OUT}BUF ioctl definitions
linux-user: Fix incorrect TARGET_BLKBSZGET, TARGET_BLKBSZSET
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When running in thumb mode, Linux doesn't evaluate the immediate value
of the svc instruction, but instead just always assumes the syscall number
to be in r7.
This fixes executing go_bootstrap while building go for me.
Signed-off-by: Alexander Graf <agraf@suse.de>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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Roll the code used to initialize the guest memory space when -R
or -B is used into 'init_guest_space' and then call 'init_guest_space'
from the driver. This way the reserved guest memory space can
be probed for. Calling 'mmap' just once as is currently done is not
guaranteed to succeed since the host address space validation might fail.
Signed-off-by: Meador Inge <meadori@codesourcery.com>
[PMM: Fixed minor whitespace errors.]
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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Signed-off-by: Meador Inge <meadori@codesourcery.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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The current bss clear logic assumes the target mmap address and host
address are the same. Use g2h to translate from the target address
space to the host so we can call memset on it.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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Signed-off-by: Jing Huang <jing.huang.pku@gmail.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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Signed-off-by: Jing Huang <jing.huang.pku@gmail.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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Signed-off-by: Jing Huang <jing.huang.pku@gmail.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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Add an explicit CPUX86State parameter instead of relying on AREG0.
Remove temporary wrappers and switch to AREG0 free mode.
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
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Add an explicit CPUX86State parameter instead of relying on AREG0.
Rename remains of op_helper.c to seg_helper.c.
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
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Add an explicit CPUX86State parameter instead of relying on AREG0.
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
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Switch to wrapped versions of memory access functions.
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
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Add an explicit CPUX86State parameter instead of relying on AREG0.
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
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Add an explicit CPUX86State parameter instead of relying on AREG0.
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
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Add an explicit CPUX86State parameter instead of relying on AREG0.
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
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Add an explicit CPUX86State parameter instead of relying on AREG0.
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
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Make FPU helpers take a parameter for CPUState instead
of relying on global env.
Introduce temporary wrappers for FPU load and store ops. Remove
wrappers for non-AREG0 code. Don't call unconverted helpers
directly.
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
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* kraxel/seabios-5a02306:
update seabios to latest master
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Switch to my personal email address.
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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asprintf is not available for all hosts. g_strdup_printf is
more portable and simplifies the code because if does not
need error handling.
The static variable does not need an explicit assignment to be NULL.
Cc: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
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gcc complains when a 32 bit pointer is casted to a 64 bit integer.
Cc: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
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