- 23 9月, 2016 1 次提交
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由 Eduardo Habkost 提交于
When trying to run docker tests on a host without the docker command, we get the following Python backtrace: $ make docker-test-quick@centos6 V=1 .../qemu/tests/docker/docker.py build qemu:centos6 .../qemu/tests/docker/dockerfiles/centos6.docker Traceback (most recent call last): File ".../qemu/tests/docker/docker.py", line 339, in <module> sys.exit(main()) File ".../qemu/tests/docker/docker.py", line 336, in main return args.cmdobj.run(args, argv) File ".../qemu/tests/docker/docker.py", line 231, in run dkr = Docker() File ".../qemu/tests/docker/docker.py", line 98, in __init__ self._command = _guess_docker_command() File ".../qemu/tests/docker/docker.py", line 41, in _guess_docker_command stdout=DEVNULL, stderr=DEVNULL) == 0: File "/usr/lib64/python2.7/subprocess.py", line 523, in call return Popen(*popenargs, **kwargs).wait() File "/usr/lib64/python2.7/subprocess.py", line 711, in __init__ errread, errwrite) File "/usr/lib64/python2.7/subprocess.py", line 1343, in _execute_child raise child_exception OSError: [Errno 2] No such file or directory .../qemu/tests/docker/Makefile.include:47: recipe for target 'docker-image-centos6' failed make: *** [docker-image-centos6] Error 1 Change _guess_docker_command() to handle OSError exceptions raised by subprocess.call(), so we will keep looking for other commands and print a better error message. New output will be: $ make docker-test-quick@centos6 V=1 .../qemu/tests/docker/docker.py build qemu:centos6 .../qemu/tests/docker/dockerfiles/centos6.docker Traceback (most recent call last): File ".../qemu/tests/docker/docker.py", line 343, in <module> sys.exit(main()) File ".../qemu/tests/docker/docker.py", line 340, in main return args.cmdobj.run(args, argv) File ".../qemu/tests/docker/docker.py", line 235, in run dkr = Docker() File ".../qemu/tests/docker/docker.py", line 102, in __init__ self._command = _guess_docker_command() File ".../qemu/tests/docker/docker.py", line 49, in _guess_docker_command commands_txt) Exception: Cannot find working docker command. Tried: docker sudo -n docker .../qemu/tests/docker/Makefile.include:47: recipe for target 'docker-image-centos6' failed make: *** [docker-image-centos6] Error 1 Signed-off-by: NEduardo Habkost <ehabkost@redhat.com> Message-Id: <1474369559-16903-1-git-send-email-ehabkost@redhat.com> [exceptions.OSError -> OSError and drop the import. - Fam] Signed-off-by: NFam Zheng <famz@redhat.com>
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- 22 9月, 2016 15 次提交
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由 Peter Maydell 提交于
linux-user changes since 2.7 release # gpg: Signature made Thu 22 Sep 2016 13:09:17 BST # gpg: using RSA key 0xB44890DEDE3C9BC0 # gpg: Good signature from "Riku Voipio <riku.voipio@iki.fi>" # gpg: aka "Riku Voipio <riku.voipio@linaro.org>" # Primary key fingerprint: FF82 03C8 C391 98AE 0581 41EF B448 90DE DE3C 9BC0 * remotes/riku/tags/pull-linux-user-20160915: (26 commits) linux-user: fix TARGET_NR_select linux-user: Fix incorrect offset of tuc_stack in ARM do_sigframe_return_v2 linux-user: Sanity check clone flags linux-user: Remove unnecessary nptl_flags variable from do_fork() linux-user: Implement force_sigsegv() via force_sig() linux-user: SIGSEGV from sigreturn need not be fatal linux-user: ARM: Give SIGSEGV if signal frame setup fails linux-user: SIGSEGV on signal entry need not be fatal linux-user: Pass si_type information to queue_signal() explicitly linux-user: Recheck for pending synchronous signals too linux-user: ppc64: set MSR_CM bit for BookE 2.06 MMU linux-user: Use correct target SHMLBA in shmat() linux-user: Use glib malloc functions in load_symbols() linux-user: Check dump_write() return in elf_core_dump() linux-user: Fix error handling in flatload.c target_pread() linux-user: Fix incorrect use of host errno in do_ioctl_dm() linux-user: Check lock_user() return value for NULL linux-user: Pass missing MAP_ANONYMOUS to target_mmap() call linux-user: report signals being taken in strace output linux-user: Range check the nfds argument to ppoll syscall ... Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
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由 Peter Maydell 提交于
seccomp branch queue # gpg: Signature made Wed 21 Sep 2016 10:30:09 BST # gpg: using RSA key 0xFD0CFF5B12F8BD2F # gpg: Good signature from "Eduardo Otubo (Software Engineer @ ProfitBricks) <eduardo.otubo@profitbricks.com>" # gpg: WARNING: This key is not certified with a trusted signature! # gpg: There is no indication that the signature belongs to the owner. # Primary key fingerprint: 1C96 46B6 E1D1 C38A F2EC 3FDE FD0C FF5B 12F8 BD2F * remotes/otubo/tags/pull-seccomp-20160921: seccomp: adding getrusage to the whitelist Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
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由 Peter Maydell 提交于
Block patches for 2.8 # gpg: Signature made Tue 20 Sep 2016 21:29:53 BST # gpg: using RSA key 0xF407DB0061D5CF40 # gpg: Good signature from "Max Reitz <mreitz@redhat.com>" # Primary key fingerprint: 91BE B60A 30DB 3E88 57D1 1829 F407 DB00 61D5 CF40 * remotes/maxreitz/tags/pull-block-2016-09-20: iotest 055: refactor and speed up commit: get the overlay node before manipulating the backing chain blockdev: Modularize nfs block driver blockdev: Add dynamic module loading for block drivers blockdev: Add dynamic generation of module_block.h blockdev: prepare iSCSI block driver for dynamic loading qemu-img: add skip option to dd qemu-img: add the 'dd' subcommand Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
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由 Peter Maydell 提交于
tcg updates for 20 Sep # gpg: Signature made Tue 20 Sep 2016 19:48:04 BST # gpg: using RSA key 0xAD1270CC4DD0279B # gpg: Good signature from "Richard Henderson <rth7680@gmail.com>" # gpg: aka "Richard Henderson <rth@redhat.com>" # gpg: aka "Richard Henderson <rth@twiddle.net>" # Primary key fingerprint: 9CB1 8DDA F8E8 49AD 2AFC 16A4 AD12 70CC 4DD0 279B * remotes/rth/tags/pull-tcg-20160920: tcg/i386: Extend TARGET_PAGE_MASK to the proper type Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
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由 Laurent Vivier 提交于
TARGET_NR_select can have three different implementations: 1- to always return -ENOSYS microblaze, ppc, ppc64 -> TARGET_WANT_NI_OLD_SELECT 2- to take parameters from a structure pointed by arg1 (kernel sys_old_select) i386, arm, m68k -> TARGET_WANT_OLD_SYS_SELECT 3- to take parameters from arg[1-5] (kernel sys_select) x86_64, alpha, s390x, cris, sparc, sparc64 Some (new) architectures don't define NR_select, 4- but only NR__newselect with sys_select: mips, mips64, sh 5- don't define NR__newselect, and use pselect6 syscall: aarch64, openrisc, tilegx, unicore32 Reported-by: NTimothy Pearson <tpearson@raptorengineering.com> Reported-by: NAllan Wirth <awirth@akamai.com> Suggested-by: NPeter Maydell <peter.maydell@linaro.org> Reviewed-by: NPeter Maydell <peter.maydell@linaro.org> Signed-off-by: NLaurent Vivier <laurent@vivier.eu> Signed-off-by: NRiku Voipio <riku.voipio@linaro.org>
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由 Timothy E Baldwin 提交于
struct target_ucontext_v2 is not at the begining of the signal frame, therefore do_sigaltstack was being passed bogus arguments. As the offset depends on the type of signal frame fixed by passing in the beginning of the context from do_sigreturn_v2 and do_rt_sigreturn_v2. Suggested-by: NPeter Maydell <peter.maydell@linaro.org> Reviewed-by: NPeter Maydell <peter.maydell@linaro.org> Signed-off-by: NTimothy Edward Baldwin <T.E.Baldwin99@members.leeds.ac.uk> Signed-off-by: NRiku Voipio <riku.voipio@linaro.org>
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由 Peter Maydell 提交于
We currently make no checks on the flags passed to the clone syscall, which means we will not fail clone attempts which ask for features that we can't implement. Add sanity checking of the flags to clone (which we were already doing in the "this is a fork" path, but not for the "this is a new thread" path), tidy up the checking in the fork path to match it, and check that the fork case isn't trying to specify a custom termination signal. This is helpful in causing some LTP test cases to fail cleanly rather than behaving bizarrely when we let the clone succeed but didn't provide the semantics requested by the flags. Signed-off-by: NPeter Maydell <peter.maydell@linaro.org> Signed-off-by: NRiku Voipio <riku.voipio@linaro.org>
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由 Peter Maydell 提交于
The 'nptl_flags' variable in do_fork() is set to a copy of 'flags', and then the CLONE_NPTL_FLAGS are cleared out of 'flags'. However the only effect of this is that the later check on "if (flags & CLONE_PARENT_SETTID)" is never true. Since we will already have done the setting of parent_tidptr in clone_func() in the child thread, we don't need to do it again. Delete the dead if() and the clearing of CLONE_NPTL_FLAGS from 'flags', and then use 'flags' where we were previously using 'nptl_flags', so we can delete the unnecessary variable. Signed-off-by: NPeter Maydell <peter.maydell@linaro.org> Signed-off-by: NRiku Voipio <riku.voipio@linaro.org>
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由 Peter Maydell 提交于
Now that we have a force_sig() with the semantics we need, we can implement force_sigsegv() to call it rather than open-coding the call to queue_signal(). Reviewed-by: NRichard Henderson <rth@twiddle.net> Signed-off-by: NPeter Maydell <peter.maydell@linaro.org> Signed-off-by: NRiku Voipio <riku.voipio@linaro.org>
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由 Peter Maydell 提交于
If the sigreturn syscall fails to read memory then this causes a SIGSEGV, but this is not necessarily a fatal signal -- the guest process can catch it. We don't implement this correctly because the behaviour of QEMU's force_sig() function has drifted away from the kernel function of the same name -- ours now does "always do a guest core dump and abort execution", whereas the kernel version simply forces the guest to take a signal, which may or may not eventually cause a core dump. Rename our force_sig() to dump_core_and_abort(), and provide a force_sig() which acts more like the kernel version as the sigreturn implementations expect it to. Since force_sig() now returns, we must update all the callsites to return -TARGET_QEMU_ESIGRETURN so that the main loop doesn't change the guest registers before the signal handler is invoked. Reviewed-by: NRichard Henderson <rth@twiddle.net> Signed-off-by: NPeter Maydell <peter.maydell@linaro.org> Signed-off-by: NRiku Voipio <riku.voipio@linaro.org>
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由 Peter Maydell 提交于
The 32-bit ARM signal frame setup code was just bailing out on error returns from lock_user_struct calls, without generating the SIGSEGV that should happen here. Wire up error return codes to call force_sigsegv(). Reviewed-by: NRichard Henderson <rth@twiddle.net> Signed-off-by: NPeter Maydell <peter.maydell@linaro.org> Signed-off-by: NRiku Voipio <riku.voipio@linaro.org>
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由 Peter Maydell 提交于
A failed write to memory trying to set up the signal frame should trigger a SIGSEGV, but this need not be fatal: the guest has a chance to catch it. Implement this via a force_sigsegv() function with the same behaviour as the kernel function of that name: make sure that we don't try to re-take a failed SIGSEGV, and force a synchronous signal. Reviewed-by: NRichard Henderson <rth@twiddle.net> Signed-off-by: NPeter Maydell <peter.maydell@linaro.org> Signed-off-by: NRiku Voipio <riku.voipio@linaro.org>
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由 Peter Maydell 提交于
Instead of assuming in queue_signal() that all callers are passing a siginfo structure which uses the _sifields._sigfault part of the union (and thus a si_type of QEMU_SI_FAULT), make callers pass the si_type they require in as an argument. [RV adjusted to apply] Reviewed-by: NRichard Henderson <rth@twiddle.net> Signed-off-by: NPeter Maydell <peter.maydell@linaro.org> Signed-off-by: NRiku Voipio <riku.voipio@linaro.org>
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由 Peter Maydell 提交于
In process_pending_signals() we restart the scan of possible pending signals after calling handle_pending_signal() in case some other signal has been generated. This rescan should also include a check for a new synchronous signal since those are in fact the only kind of new signal that the signal frame setup process might produce. Reviewed-by: NRichard Henderson <rth@twiddle.net> Signed-off-by: NPeter Maydell <peter.maydell@linaro.org> Signed-off-by: NRiku Voipio <riku.voipio@linaro.org>
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由 Michael Walle 提交于
64 bit user mode doesn't work for the e5500 core because the MSR_CM bit is not set which enables the 64 bit mode for this MMU model. Memory addresses are truncated to 32 bit, which results in "Invalid data memory access" error messages. Fix it by setting the MSR_CM bit for this MMU model. Signed-off-by: NMichael Walle <michael@walle.cc> Reviewed-by: NAlexander Graf <agraf@suse.de> Signed-off-by: NRiku Voipio <riku.voipio@linaro.org>
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- 21 9月, 2016 24 次提交
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由 Peter Maydell 提交于
The shmat() handling needs to do target-specific handling of the attach address for shmat(): * if the SHM_RND flag is passed, the address is rounded down to a SHMLBA boundary * if SHM_RND is not passed, then the call is failed EINVAL if the address is not a multiple of SHMLBA Since SHMLBA is target-specific, we need to do this checking and rounding in QEMU and can't leave it up to the host syscall. Allow targets to define TARGET_FORCE_SHMLBA and provide a target_shmlba() function if appropriate, and update do_shmat() to honour them. Signed-off-by: NPeter Maydell <peter.maydell@linaro.org> Signed-off-by: NRiku Voipio <riku.voipio@linaro.org>
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由 Peter Maydell 提交于
Switch to using the glib malloc functions in load_symbols(); this deals with a Coverity complaint about possible integer overflow calculating the allocation size with 'nsyms * sizeof(*syms)'. Signed-off-by: NPeter Maydell <peter.maydell@linaro.org> Signed-off-by: NRiku Voipio <riku.voipio@linaro.org>
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由 Peter Maydell 提交于
One of the calls to dump_write() in elf_core_dump() was missing a check for failure (spotted by Coverity). Add the check to bring it into line with the other calls from this function. Signed-off-by: NPeter Maydell <peter.maydell@linaro.org> Signed-off-by: NRiku Voipio <riku.voipio@linaro.org>
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由 Peter Maydell 提交于
The flatload.c target_pread() function is supposed to return 0 on success or negative host errnos; however it wasn't checking lock_user() for failure or returning the errno from the pread() call. Fix these problems (the first of which is noted by Coverity). Signed-off-by: NPeter Maydell <peter.maydell@linaro.org> Signed-off-by: NRiku Voipio <riku.voipio@linaro.org>
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由 Peter Maydell 提交于
do_ioctl_dm() should return target errno values, not host ones; correct an accidental use of a host errno in an error path. Signed-off-by: NPeter Maydell <peter.maydell@linaro.org> Signed-off-by: NRiku Voipio <riku.voipio@linaro.org>
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由 Peter Maydell 提交于
lock_user() can return NULL, which typically means the syscall should fail with EFAULT. Add checks in various places where Coverity spotted that we were missing them. Signed-off-by: NPeter Maydell <peter.maydell@linaro.org> Signed-off-by: NRiku Voipio <riku.voipio@linaro.org>
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由 Peter Maydell 提交于
A target_mmap() call in load_elf_binary() was missing the MAP_ANONYMOUS flag. (Spotted by Coverity, because target_mmap() will try to use -1 as the filedescriptor in this case.) This has never been noticed because the code in question is for handling ancient SVr4 iBCS2 binaries. Signed-off-by: NPeter Maydell <peter.maydell@linaro.org> Signed-off-by: NRiku Voipio <riku.voipio@linaro.org>
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由 Peter Maydell 提交于
Native strace reports when the process being traced takes a signal: --- SIGSEGV {si_signo=SIGSEGV, si_code=SI_KERNEL, si_addr=0} --- Report something similar when QEMU is doing its internal strace of the guest process and is about to deliver it a signal. Signed-off-by: NPeter Maydell <peter.maydell@linaro.org> Signed-off-by: NRiku Voipio <riku.voipio@linaro.org>
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由 Peter Maydell 提交于
Do an initial range check on the ppoll syscall's nfds argument, to avoid possible overflow in the calculation of the lock_user() size argument. The host kernel will later apply the rather lower limit based on RLIMIT_NOFILE as appropriate. Signed-off-by: NPeter Maydell <peter.maydell@linaro.org> Signed-off-by: NRiku Voipio <riku.voipio@linaro.org>
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由 Peter Maydell 提交于
The kernel checks that the maxevents parameter to epoll_wait is non-negative and not larger than EP_MAX_EVENTS. Add this check to our implementation, so that: * we fail these cases EINVAL rather than EFAULT * we don't pass negative or overflowing values to the lock_user() size calculation Signed-off-by: NPeter Maydell <peter.maydell@linaro.org> Signed-off-by: NRiku Voipio <riku.voipio@linaro.org>
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由 Peter Maydell 提交于
The linux utimensat syscall differs in semantics from the libc function because the syscall combines the features of utimensat() and futimens(). Rather than trying to split these apart in order to call the two libc functions which then call the same underlying syscall, just always directly make the host syscall. This fixes bugs in some of the corner cases which should return errors from the syscall but which we were incorrectly directing to futimens(). This doesn't reduce the set of hosts that our syscall implementation will work on, because if the direct syscall fails ENOSYS then the libc functions would also fail ENOSYS. (The system call has been in the kernel since 2.6.22 anyway.) Signed-off-by: NPeter Maydell <peter.maydell@linaro.org> Signed-off-by: NRiku Voipio <riku.voipio@linaro.org>
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由 Peter Maydell 提交于
Implement the FS_IOC_GETFLAGS and FS_IOC_SETFLAGS ioctls, as used by chattr. Note that the type information encoded in these ioctl numbers is at odds with the actual type the kernel accesses, as discussed in http://thread.gmane.org/gmane.linux.file-systems/80164. Signed-off-by: NPeter Maydell <peter.maydell@linaro.org> Signed-off-by: NRiku Voipio <riku.voipio@linaro.org>
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由 Peter Maydell 提交于
The POSIX standard mandates that for a connected socket recvfrom() must ignore the msg_name and msg_namelen fields. This is awkward for QEMU because we will attempt to copy them from guest address space. Handle this by not immediately returning a TARGET_EFAULT if the copy failed, but instead passing a known-bad address to the host kernel, which can then return EFAULT or ignore the value appropriately. Signed-off-by: NPeter Maydell <peter.maydell@linaro.org> Signed-off-by: NRiku Voipio <riku.voipio@linaro.org>
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由 Peter Maydell 提交于
The sendmsg and recvmsg syscalls use a different errno to indicate an overlarge iovec length from readv and writev. Handle this special case in do_sendrcvmsg_locked() to avoid getting the default errno returned by lock_iovec(). Signed-off-by: NPeter Maydell <peter.maydell@linaro.org> Signed-off-by: NRiku Voipio <riku.voipio@linaro.org>
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由 Peter Maydell 提交于
In the kernel the length of an iovec is generally handled as an unsigned long, not an integer; fix the parameter to lock_iovec() accordingly. Signed-off-by: NPeter Maydell <peter.maydell@linaro.org> Signed-off-by: NRiku Voipio <riku.voipio@linaro.org>
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由 Eduardo Otubo 提交于
getrusage is used in a number of places throughout the qemu codebase (notably, in crypto/pbkdf.c). Without this syscall being whitelisted, qemu ends up getting killed by the kernel whenever you try to connect to a VNC console. Signed-off-by: NBrian Rak <brak@gameservers.com> Acked-by: NEduardo Otubo <eduardo.otubo@profitbricks.com>
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Source disk is created and filled with test data before each test case. Instead initialize it once for the whole unit. Test disk filling patterns are merged into one pattern. Also TestSetSpeed used different image_len for source and target (by mistake) - this is automatically fixed here. Signed-off-by: NVladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Message-id: 1470748523-13856-1-git-send-email-vsementsov@virtuozzo.com Reviewed-by: NPavel Butsykin <pbutsykin@virtuozzo.com> Reviewed-by: NMax Reitz <mreitz@redhat.com> Signed-off-by: NMax Reitz <mreitz@redhat.com>
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由 Alberto Garcia 提交于
The 'block-commit' command has a 'top' parameter to specify the topmost node from which the data is going to be copied. [E] <- [D] <- [C] <- [B] <- [A] In this case if [C] is the top node then this is the result: [E] <- [B] <- [A] [B] must be modified so its backing image string points to [E] instead of [C]. commit_start() takes care of reopening [B] in read-write mode, and commit_complete() puts it back in read-only mode once the operation has finished. In order to find [B] (the overlay node) we look for the node that has [C] (the top node) as its backing image. However in commit_complete() we're doing it after [C] has been removed from the chain, so [B] is never found and remains in read-write mode. This patch gets the overlay node before the backing chain is manipulated. Signed-off-by: NAlberto Garcia <berto@igalia.com> Message-id: 1471836963-28548-1-git-send-email-berto@igalia.com Signed-off-by: NMax Reitz <mreitz@redhat.com>
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由 Colin Lord 提交于
Modularizes the nfs block driver so that it gets dynamically loaded. Signed-off-by: NColin Lord <clord@redhat.com> Reviewed-by: NStefan Hajnoczi <stefanha@redhat.com> Message-id: 1471008424-16465-5-git-send-email-clord@redhat.com Reviewed-by: NMax Reitz <mreitz@redhat.com> Signed-off-by: NMax Reitz <mreitz@redhat.com>
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由 Marc Mari 提交于
Extend the current module interface to allow for block drivers to be loaded dynamically on request. The only block drivers that can be converted into modules are the drivers that don't perform any init operation except for registering themselves. In addition, only the protocol drivers are being modularized, as they are the only ones which see significant performance benefits. The format drivers do not generally link to external libraries, so modularizing them is of no benefit from a performance perspective. All the necessary module information is located in a new structure found in module_block.h This spoils the purpose of 5505e8b7 (block/dmg: make it modular). Before this patch, if module build is enabled, block-dmg.so is linked to libbz2, whereas the main binary is not. In downstream, theoretically, it means only the qemu-block-extra package depends on libbz2, while the main QEMU package needn't to. With this patch, we (temporarily) change the case so that the main QEMU depends on libbz2 again. Signed-off-by: NMarc Marí <markmb@redhat.com> Signed-off-by: NColin Lord <clord@redhat.com> Reviewed-by: NStefan Hajnoczi <stefanha@redhat.com> Message-id: 1471008424-16465-4-git-send-email-clord@redhat.com Reviewed-by: NMax Reitz <mreitz@redhat.com> [mreitz: Do a signed comparison against the length of block_driver_modules[], so it will not cause a compile error when empty] Signed-off-by: NMax Reitz <mreitz@redhat.com>
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由 Marc Mari 提交于
To simplify the addition of new block modules, add a script that generates module_block.h automatically from the modules' source code. This script assumes that the QEMU coding style rules are followed. Signed-off-by: NMarc Marí <markmb@redhat.com> Signed-off-by: NColin Lord <clord@redhat.com> Reviewed-by: NStefan Hajnoczi <stefanha@redhat.com> Message-id: 1471008424-16465-3-git-send-email-clord@redhat.com Reviewed-by: NMax Reitz <mreitz@redhat.com> Signed-off-by: NMax Reitz <mreitz@redhat.com>
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由 Colin Lord 提交于
This commit moves the initialization of the QemuOptsList qemu_iscsi_opts struct out of block/iscsi.c in order to allow the iscsi module to be dynamically loaded. Signed-off-by: NColin Lord <clord@redhat.com> Reviewed-by: NFam Zheng <famz@redhat.com> Reviewed-by: NStefan Hajnoczi <stefanha@redhat.com> Message-id: 1471008424-16465-2-git-send-email-clord@redhat.com Reviewed-by: NMax Reitz <mreitz@redhat.com> Signed-off-by: NMax Reitz <mreitz@redhat.com>
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由 Reda Sallahi 提交于
This adds the skip option which allows qemu-img dd to skip a number of blocks before copying the input. A test case was added to test the skip option. Signed-off-by: NReda Sallahi <fullmanet@gmail.com> Message-id: 20160810141609.32727-1-fullmanet@gmail.com Signed-off-by: NMax Reitz <mreitz@redhat.com>
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由 Reda Sallahi 提交于
This patch adds a basic dd subcommand analogous to dd(1) to qemu-img. For the start, this implements the bs, if, of and count options and requires both if and of to be specified (no stdin/stdout if not specified) and doesn't support tty, pipes, etc. The image format must be specified with -O for the output if the raw format is not the intended one. Two tests are added to test qemu-img dd. Signed-off-by: NReda Sallahi <fullmanet@gmail.com> Message-id: 20160810024312.14544-1-fullmanet@gmail.com Reviewed-by: NStefan Hajnoczi <stefanha@redhat.com> [mreitz: Moved test 158 to 170] Signed-off-by: NMax Reitz <mreitz@redhat.com>
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