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2016-09-13vmw_pvscsi: check page count while initialising descriptor ringsPrasad J Pandit
Vmware Paravirtual SCSI emulation uses command descriptors to process SCSI commands. These descriptors come with their ring buffers. A guest could set the page count for these rings to an arbitrary value, leading to infinite loop or OOB access. Add check to avoid it. Reported-by: Tom Victor <vv474172261@gmail.com> Signed-off-by: Prasad J Pandit <pjp@fedoraproject.org> Message-Id: <1472626169-12989-1-git-send-email-ppandit@redhat.com> Cc: qemu-stable@nongnu.org Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-09-13scsi-disk: change disk serial length from 20 to 36Rony Weng
Openstack Cinder assigns volume a 36 characters uuid as serial. QEMU will shrinks the uuid to 20 characters, which does not match the original uuid. Note that there is no limit to the length of the serial number in the SCSI spec. 20 was copy-pasted from virtio-blk which in turn was copy-pasted from ATA; 36 is even more arbitrary. However, bumping it up too much might cause issues (e.g. 252 seems to make sense because then the maximum amount of returned data is 256; but who knows there's no off-by-one somewhere for such a nicely rounded number). Signed-off-by: Rony Weng <ronyweng@synology.com> Message-Id: <1472457138-23386-1-git-send-email-ronyweng@synology.com> Cc: qemu-stable@nongnu.org Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-09-13MAINTAINERS: add myself as stubs maintainersPaolo Bonzini
Let's just remove some files from the pool of unmaintained files. I am obviously not going to send pull requests only for stubs/, but I will ack them if maintainers want that. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-09-13lsi: never set DMA FIFO Empty (DFE) bit in DSTAT registerHervé Poussineau
53C895A datasheet says: "This bit (DFE) is a pure status bit and will not cause an interrupt" This bit is already auto-generated in lsi_read_reg when reading the DSTAT register. This fixes IBM RS/6000 7020 firmware, which is: - resetting the adapter - enabling all interrupt sources (including DIP, ie interrupts from DSTAT) - waiting for ISTAT0 to become 0 (including DIP=0, ie no interrupt coming from DSTAT) Signed-off-by: Hervé Poussineau <hpoussin@reactos.org> Message-Id: <1471505489-1221-5-git-send-email-hpoussin@reactos.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
2016-09-13lsi: implement I/O memory space for Memory Move instructionsHervé Poussineau
Memory Move instructions can read/write data either from PCI memory or from PCI I/O. Implement second case. Windows 98 now works with LSI 53C810A adapter. Signed-off-by: Hervé Poussineau <hpoussin@reactos.org> Message-Id: <1471505489-1221-4-git-send-email-hpoussin@reactos.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
2016-09-13lsi: do not exit QEMU if reading invalid registerHervé Poussineau
When guest accesses invalid register, return 0xff instead of exiting. Also add a log when reading or writing invalid registers. Signed-off-by: Hervé Poussineau <hpoussin@reactos.org> Message-Id: <1471505489-1221-3-git-send-email-hpoussin@reactos.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
2016-09-13lsi: print register names in debug printsHervé Poussineau
Modify lsi_reg_readb function to have a single exit point. Debug print can now contain the returned value. Signed-off-by: Hervé Poussineau <hpoussin@reactos.org> Message-Id: <1471505489-1221-2-git-send-email-hpoussin@reactos.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
2016-09-13help: Update help to remove misleading display informationColin Lord
Updates the help messages to remove misleading information about SDL being the normal display used. Signed-off-by: Colin Lord <cdlord2@illinois.edu> Message-Id: <1471030248-21637-1-git-send-email-cdlord2@illinois.edu> Reviewed-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-09-13cpus: update commentsCao jin
The returned value of cpu_get_clock() is plused with the offset, so it is the time elapsed in virtual machine when vm is active. Cc: Paolo Bonzini <pbonzini@redhat.com> Cc Peter Crosthwaite <crosthwaite.peter@gmail.com> Cc: Richard Henderson <rth@twiddle.net> Signed-off-by: Cao jin <caoj.fnst@cn.fujitsu.com> Message-Id: <1469790338-28990-4-git-send-email-caoj.fnst@cn.fujitsu.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-09-13cpus: rename local variable to meaningful oneCao jin
The function actually returns monotonic time value in nanosecond, the "ticks" is not suitable. Cc: Paolo Bonzini <pbonzini@redhat.com> Cc Peter Crosthwaite <crosthwaite.peter@gmail.com> Cc: Richard Henderson <rth@twiddle.net> Signed-off-by: Cao jin <caoj.fnst@cn.fujitsu.com> Message-Id: <1469790338-28990-3-git-send-email-caoj.fnst@cn.fujitsu.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-09-13timer: update commentsCao jin
The comments is outdated. The patch has following changes: 1. tense correction. 2. all clock time value is returned in nanoseconds, so, they are same in precision. 3. virtual clock doesn't use cpu cycles. Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Cao jin <caoj.fnst@cn.fujitsu.com> Message-Id: <1469790338-28990-2-git-send-email-caoj.fnst@cn.fujitsu.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-09-13rules.mak: Don't extract libs from .mo-libs in link commandFam Zheng
For module build, .mo objects are passed to LINK and consumed in process-archive-undefs. The reason behind that is documented in the comment above process-archive-undefs. Similarly, extract-libs should be called with .mo filtered out too. Otherwise, the .mo-libs are added to the link command incorrectly, spoiling the purpose of modularization. Currently we don't have any .mo-libs usage, but it will be used soon when we modularize more multi-source objects, like sdl and gtk. Reported-by: Colin Lord <clord@redhat.com> Signed-off-by: Fam Zheng <famz@redhat.com> Message-Id: <1469600777-30413-2-git-send-email-famz@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-09-13tcg: rename tb_find_physical()Sergey Fedorov
In fact, this function does not exactly perform a lookup by physical address as it is descibed for comment on get_page_addr_code(). Thus it may be a bit confusing to have "physical" in it's name. So rename it to tb_htable_lookup() to better reflect its actual functionality. Signed-off-by: Sergey Fedorov <serge.fdrv@gmail.com> Signed-off-by: Sergey Fedorov <sergey.fedorov@linaro.org> Message-Id: <20160715175852.30749-13-sergey.fedorov@linaro.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-09-13tcg: Merge tb_find_slow() and tb_find_fast()Sergey Fedorov
These functions are not too big and can be merged together. This makes locking scheme more clear and easier to follow. Signed-off-by: Sergey Fedorov <serge.fdrv@gmail.com> Signed-off-by: Sergey Fedorov <sergey.fedorov@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <20160715175852.30749-12-sergey.fedorov@linaro.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-09-13tcg: Avoid bouncing tb_lock between tb_gen_code() and tb_add_jump()Sergey Fedorov
Signed-off-by: Sergey Fedorov <serge.fdrv@gmail.com> Signed-off-by: Sergey Fedorov <sergey.fedorov@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <20160715175852.30749-11-sergey.fedorov@linaro.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-09-13tcg: cpu-exec: remove tb_lock from the hot-pathAlex Bennée
Lock contention in the hot path of moving between existing patched TranslationBlocks is the main drag in multithreaded performance. This patch pushes the tb_lock() usage down to the two places that really need it: - code generation (tb_gen_code) - jump patching (tb_add_jump) The rest of the code doesn't really need to hold a lock as it is either using per-CPU structures, atomically updated or designed to be used in concurrent read situations (qht_lookup). To keep things simple I removed the #ifdef CONFIG_USER_ONLY stuff as the locks become NOPs anyway until the MTTCG work is completed. Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Richard Henderson <rth@twiddle.net> Reviewed-by: Sergey Fedorov <sergey.fedorov@linaro.org> Signed-off-by: Sergey Fedorov <sergey.fedorov@linaro.org> Message-Id: <20160715175852.30749-10-sergey.fedorov@linaro.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-09-13tcg: set up tb->page_addr before insertionAlex Bennée
This ensures that if we find the TB on the slow path that tb->page_addr is correctly set before being tested. Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Sergey Fedorov <sergey.fedorov@linaro.org> Signed-off-by: Sergey Fedorov <sergey.fedorov@linaro.org> Message-Id: <20160715175852.30749-9-sergey.fedorov@linaro.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-09-13tcg: Prepare TB invalidation for lockless TB lookupPaolo Bonzini
When invalidating a translation block, set an invalid flag into the TranslationBlock structure first. It is also necessary to check whether the target TB is still valid after acquiring 'tb_lock' but before calling tb_add_jump() since TB lookup is to be performed out of 'tb_lock' in future. Note that we don't have to check 'last_tb'; an already invalidated TB will not be executed anyway and it is thus safe to patch it. Suggested-by: Sergey Fedorov <serge.fdrv@gmail.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-09-13tcg: Prepare safe access to tb_flushed out of tb_lockSergey Fedorov
Ensure atomicity and ordering of CPU's 'tb_flushed' access for future translation block lookup out of 'tb_lock'. This field can only be touched from another thread by tb_flush() in user mode emulation. So the only access to be sequential atomic is: * a single write in tb_flush(); * reads/writes out of 'tb_lock'. In future, before enabling MTTCG in system mode, tb_flush() must be safe and this field becomes unnecessary. Signed-off-by: Sergey Fedorov <serge.fdrv@gmail.com> Signed-off-by: Sergey Fedorov <sergey.fedorov@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <20160715175852.30749-5-sergey.fedorov@linaro.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-09-13tcg: Prepare safe tb_jmp_cache lookup out of tb_lockSergey Fedorov
Ensure atomicity of CPU's 'tb_jmp_cache' access for future translation block lookup out of 'tb_lock'. Note that this patch does *not* make CPU's TLB invalidation safe if it is done from some other thread while the CPU is in its execution loop. Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Sergey Fedorov <serge.fdrv@gmail.com> Signed-off-by: Sergey Fedorov <sergey.fedorov@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <20160715175852.30749-4-sergey.fedorov@linaro.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-09-13tcg: Pass last_tb by value to tb_find_fast()Sergey Fedorov
This is a small clean up. tb_find_fast() is a final consumer of this variable so no need to pass it by reference. 'last_tb' is always updated by subsequent cpu_loop_exec_tb() in cpu_exec(). This change also simplifies calling cpu_exec_nocache() in cpu_handle_exception(). Signed-off-by: Sergey Fedorov <serge.fdrv@gmail.com> Signed-off-by: Sergey Fedorov <sergey.fedorov@linaro.org> Message-Id: <20160715175852.30749-3-sergey.fedorov@linaro.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-09-13util: fix some coding style issueCao jin
Fix some coding style issues found in removing NonBlockingConnectHandler. Cc: Daniel P. Berrange <berrange@redhat.com> Cc: Gerd Hoffmann <kraxel@redhat.com> Cc: Paolo Bonzini <pbonzini@redhat.com> Reviwed-by: Daniel P. Berrange <berrange@redhat.com> Signed-off-by: Cao jin <caoj.fnst@cn.fujitsu.com> Message-Id: <1469696074-12744-3-git-send-email-caoj.fnst@cn.fujitsu.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-09-13util/qemu-sockets: revert Yoda Conditions to normalCao jin
Follow CODING_STYLE Cc: Daniel P. Berrange <berrange@redhat.com> Cc: Gerd Hoffmann <kraxel@redhat.com> Cc: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Cao jin <caoj.fnst@cn.fujitsu.com> Message-Id: <1469703004-14800-1-git-send-email-caoj.fnst@cn.fujitsu.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-09-13qtail: clean up direct access to tqe_prev fieldIgor Mammedov
instead of accessing tqe_prev field dircetly outside of queue.h use macros to check if element is in list and make sure that afer element is removed from list tqe_prev field could be used to do the same check. Signed-off-by: Igor Mammedov <imammedo@redhat.com> Message-Id: <1469450832-84343-1-git-send-email-imammedo@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-09-13Merge remote-tracking branch 'remotes/kraxel/tags/pull-vga-20160913-1' into ↵Peter Maydell
staging virtio-gpu and vmsvga fixes. # gpg: Signature made Tue 13 Sep 2016 09:14:44 BST # gpg: using RSA key 0x4CB6D8EED3E87138 # 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/pull-vga-20160913-1: virtio-vga: adapt to page-per-vq=off virtio-gpu-pci: tag as not hotpluggable vmsvga: correct bitmap and pixmap size checks Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-09-13Merge remote-tracking branch 'remotes/kraxel/tags/pull-ui-20160913-1' into ↵Peter Maydell
staging ui: misc small fixes for vnc, spice and curses. # gpg: Signature made Tue 13 Sep 2016 08:04:46 BST # gpg: using RSA key 0x4CB6D8EED3E87138 # 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/pull-ui-20160913-1: vnc: fix qemu crash because of SIGSEGV qemu-options.hx: correct spice options streaming-video default document value to 'off' ui/curses.c: Clean up nextchr logic ui/curses.c: Ensure we don't read off the end of curses2qemu array Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-09-13Merge remote-tracking branch 'remotes/cody/tags/block-pull-request' into stagingPeter Maydell
# gpg: Signature made Tue 13 Sep 2016 06:41:42 BST # gpg: using RSA key 0xBDBE7B27C0DE3057 # gpg: Good signature from "Jeffrey Cody <jcody@redhat.com>" # gpg: aka "Jeffrey Cody <jeff@codyprime.org>" # gpg: aka "Jeffrey Cody <codyprime@gmail.com>" # Primary key fingerprint: 9957 4B4D 3474 90E7 9D98 D624 BDBE 7B27 C0DE 3057 * remotes/cody/tags/block-pull-request: qapi/block-core: add doc describing GlusterServer vs. SocketAddress block/gluster: add support to choose libgfapi logfile Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-09-13virtio-vga: adapt to page-per-vq=offGerd Hoffmann
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Message-id: 1473319012-27560-1-git-send-email-kraxel@redhat.com
2016-09-13virtio-gpu-pci: tag as not hotpluggableGerd Hoffmann
We can't hotplug display adapters in qemu, tag virtio-gpu-pci accordingly (virtio-vga already has this). Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Message-id: 1473319037-27645-1-git-send-email-kraxel@redhat.com
2016-09-13vmsvga: correct bitmap and pixmap size checksPrasad J Pandit
When processing svga command DEFINE_CURSOR in vmsvga_fifo_run, the computed BITMAP and PIXMAP size are checked against the 'cursor.mask[]' and 'cursor.image[]' array sizes in bytes. Correct these checks to avoid OOB memory access. Reported-by: Qinghao Tang <luodalongde@gmail.com> Reported-by: Li Qiang <liqiang6-s@360.cn> Signed-off-by: Prasad J Pandit <pjp@fedoraproject.org> Message-id: 1473338754-15430-1-git-send-email-ppandit@redhat.com Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2016-09-13vnc: fix qemu crash because of SIGSEGVGonglei
The backtrace is: 0x00007f0b75cdf880 in pixman_image_get_stride () from /lib64/libpixman-1.so.0 0x00007f0b77bcb3cf in vnc_server_fb_stride (vd=0x7f0b7a1a2bb0) at ui/vnc.c:680 vnc_dpy_copy (dcl=0x7f0b7a1a2c00, src_x=224, src_y=263, dst_x=319, dst_y=363, w=1, h=1) at ui/vnc.c:915 0x00007f0b77bbcc35 in dpy_gfx_copy (con=0x7f0b7a146210, src_x=src_x@entry=224, src_y=src_y@entry=263, dst_x=dst_x@entry=319, dst_y=dst_y@entry=363, w=1, h=1) at ui/console.c:1575 0x00007f0b77bbda4e in qemu_console_copy (con=<optimized out>, src_x=src_x@entry=224, src_y=src_y@entry=263, dst_x=dst_x@entry=319, dst_y=dst_y@entry=363, w=<optimized out>, h=<optimized out>) at ui/console.c:2111 0x00007f0b77ac0980 in cirrus_do_copy (h=<optimized out>, w=<optimized out>, src=<optimized out>, dst=<optimized out>, s=0x7f0b7b086090) at hw/display/cirrus_vga.c:774 cirrus_bitblt_videotovideo_copy (s=0x7f0b7b086090) at hw/display/cirrus_vga.c:793 cirrus_bitblt_videotovideo (s=0x7f0b7b086090) at hw/display/cirrus_vga.c:915 cirrus_bitblt_start (s=0x7f0b7b086090) at hw/display/cirrus_vga.c:1056 0x00007f0b77965cfb in memory_region_write_accessor (mr=0x7f0b7b096e40, addr=320, value=<optimized out>, size=1, shift=<optimized out>,mask=<optimized out>, attrs=...) at /root/rpmbuild/BUILD/master/qemu/memory.c:525 0x00007f0b77963f59 in access_with_adjusted_size (addr=addr@entry=320, value=value@entry=0x7f0b69a268d8, size=size@entry=4, access_size_min=<optimized out>, access_size_max=<optimized out>, access=access@entry=0x7f0b77965c80 <memory_region_write_accessor>, mr=mr@entry=0x7f0b7b096e40, attrs=attrs@entry=...) at /root/rpmbuild/BUILD/master/qemu/memory.c:591 0x00007f0b77968315 in memory_region_dispatch_write (mr=mr@entry=0x7f0b7b096e40, addr=addr@entry=320, data=18446744073709551362, size=size@entry=4, attrs=attrs@entry=...) at /root/rpmbuild/BUILD/master/qemu/memory.c:1262 0x00007f0b779256a9 in address_space_write_continue (mr=0x7f0b7b096e40, l=4, addr1=320, len=4, buf=0x7f0b77713028 "\002\377\377\377", attrs=..., addr=4273930560, as=0x7f0b7827d280 <address_space_memory>) at /root/rpmbuild/BUILD/master/qemu/exec.c:2544 address_space_write (as=<optimized out>, addr=<optimized out>, attrs=..., buf=<optimized out>, len=<optimized out>) at /root/rpmbuild/BUILD/master/qemu/exec.c:2601 0x00007f0b77925c1d in address_space_rw (as=<optimized out>, addr=<optimized out>, attrs=..., attrs@entry=..., buf=buf@entry=0x7f0b77713028 "\002\377\377\377", len=<optimized out>, is_write=<optimized out>) at /root/rpmbuild/BUILD/master/qemu/exec.c:2703 0x00007f0b77962f53 in kvm_cpu_exec (cpu=cpu@entry=0x7f0b79fcc2d0) at /root/rpmbuild/BUILD/master/qemu/kvm-all.c:1965 0x00007f0b77950cc6 in qemu_kvm_cpu_thread_fn (arg=0x7f0b79fcc2d0) at /root/rpmbuild/BUILD/master/qemu/cpus.c:1078 0x00007f0b744b3dc5 in start_thread (arg=0x7f0b69a27700) at pthread_create.c:308 0x00007f0b70d3d66d in clone () from /lib64/libc.so.6 The code path while meeting segfault: vnc_dpy_copy vnc_update_client vnc_disconnect_finish [while vnc_disconnect_start() is invoked because somethins wrong] vnc_update_server_surface vd->server = NULL; vnc_server_fb_stride pixman_image_get_stride(vd->server) Let's add a non-NULL check before calling vnc_server_fb_stride() to avoid segmentation fault. Cc: Gerd Hoffmann <kraxel@redhat.com> Cc: Daniel P. Berrange <berrange@redhat.com> Reported-by: Yanying Zhuang <ann.zhuangyanying@huawei.com> Signed-off-by: Gonglei <arei.gonglei@huawei.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-id: 1472788698-120964-1-git-send-email-arei.gonglei@huawei.com Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2016-09-13qemu-options.hx: correct spice options streaming-video default document ↵Li Zhijian
value to 'off' since f1d3e58, the code had changed the default value to 'off', so this patch make document and code are consistent. Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com> Message-id: 1470024419-10886-1-git-send-email-lizhijian@cn.fujitsu.com Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2016-09-13ui/curses.c: Clean up nextchr logicPeter Maydell
Coverity identifies that at the top of the while(1) loop in curses_refresh() the variable nextchr is always ERR, and so the else case of the first if() is dead code. Remove this dead code, and narrow the scope of the nextchr variable to the place where it's used. (This confused logic has been present since the curses code was added to QEMU in 2008.) Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1470925407-23850-3-git-send-email-peter.maydell@linaro.org Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2016-09-13ui/curses.c: Ensure we don't read off the end of curses2qemu arrayPeter Maydell
Coverity spots that there is no bounds check before we access the curses2qemu[] array. Add one, bringing this code path into line with the one that looks up entries in curses2keysym[]. In theory getch() shouldn't return out of range keycodes, but it's better not to assume this. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1470925407-23850-2-git-send-email-peter.maydell@linaro.org Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2016-09-13qapi/block-core: add doc describing GlusterServer vs. SocketAddressPrasanna Kumar Kalever
Added documentation describing relation between GlusterServer and SocketAddress qapi schemas. Thanks to Markus Armbruster <armbru@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Jeff Cody <jcody@redhat.com> Signed-off-by: Prasanna Kumar Kalever <prasanna.kalever@redhat.com> Message-id: 1471715924-3642-1-git-send-email-prasanna.kalever@redhat.com Signed-off-by: Jeff Cody <jcody@redhat.com>
2016-09-13block/gluster: add support to choose libgfapi logfilePrasanna Kumar Kalever
currently all the libgfapi logs defaults to '/dev/stderr' as it was hardcoded in a call to glfs logging api. When the debug level is chosen to DEBUG/TRACE, gfapi logs will be huge and fill/overflow the console view. This patch provides a commandline option to mention log file path which helps in logging to the specified file and also help in persisting the gfapi logs. Usage: ----- *URI Style: --------- -drive file=gluster://hostname/volname/image.qcow2,file.debug=9,\ file.logfile=/var/log/qemu/qemu-gfapi.log *JSON Style: ---------- 'json:{ "driver":"qcow2", "file":{ "driver":"gluster", "volume":"volname", "path":"image.qcow2", "debug":"9", "logfile":"/var/log/qemu/qemu-gfapi.log", "server":[ { "type":"tcp", "host":"1.2.3.4", "port":24007 }, { "type":"unix", "socket":"/var/run/glusterd.socket" } ] } }' Reviewed-by: Jeff Cody <jcody@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Prasanna Kumar Kalever <prasanna.kalever@redhat.com> Signed-off-by: Jeff Cody <jcody@redhat.com>
2016-09-12Merge remote-tracking branch 'remotes/mcayland/tags/qemu-openbios-signed' ↵Peter Maydell
into staging Update OpenBIOS images # gpg: Signature made Mon 12 Sep 2016 11:51:09 BST # gpg: using RSA key 0x5BC2C56FAE0F321F # 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-signed: Update OpenBIOS images to c5542f2 built from submodule. Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-09-12Merge remote-tracking branch ↵Peter Maydell
'remotes/berrange/tags/pull-qcrypto-2016-09-12-1' into staging Merge qcrypto 2016/09/12 v1 # gpg: Signature made Mon 12 Sep 2016 12:02:20 BST # gpg: using RSA key 0xBE86EBB415104FDF # gpg: Good signature from "Daniel P. Berrange <dan@berrange.com>" # gpg: aka "Daniel P. Berrange <berrange@redhat.com>" # Primary key fingerprint: DAF3 A6FD B26B 6291 2D0E 8E3F BE86 EBB4 1510 4FDF * remotes/berrange/tags/pull-qcrypto-2016-09-12-1: crypto: report enum strings instead of values in errors crypto: fix building complaint crypto: ensure XTS is only used with ciphers with 16 byte blocks Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-09-12crypto: report enum strings instead of values in errorsDaniel P. Berrange
Several error messages print out the raw enum value, which is less than helpful to users, as these values are not documented, nor stable across QEMU releases. Switch to use the enum string instead. The nettle impl also had two typos where it mistakenly said "algorithm" instead of "mode", and actually reported the algorithm value too. Reviewed-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2016-09-12crypto: fix building complaintGonglei
gnutls commit 846753877d renamed LIBGNUTLS_VERSION_NUMBER to GNUTLS_VERSION_NUMBER. If using gnutls before that verion, we'll get the below warning: crypto/tlscredsx509.c:618:5: warning: "GNUTLS_VERSION_NUMBER" is not defined Because gnutls 3.x still defines LIBGNUTLS_VERSION_NUMBER for back compat, Let's use LIBGNUTLS_VERSION_NUMBER instead of GNUTLS_VERSION_NUMBER to fix building complaint. Signed-off-by: Gonglei <arei.gonglei@huawei.com> Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2016-09-12crypto: ensure XTS is only used with ciphers with 16 byte blocksDaniel P. Berrange
The XTS cipher mode needs to be used with a cipher which has a block size of 16 bytes. If a mis-matching block size is used, the code will either corrupt memory beyond the IV array, or not fully encrypt/decrypt the IV. This fixes a memory corruption crash when attempting to use cast5-128 with xts, since the former has an 8 byte block size. A test case is added to ensure the cipher creation fails with such an invalid combination. Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2016-09-12Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into stagingPeter Maydell
virtio,vhost,pc: fixes and updates balloon fixes wrt migration virtio-vsock device support Signed-off-by: Michael S. Tsirkin <mst@redhat.com> # gpg: Signature made Fri 09 Sep 2016 22:36:13 BST # gpg: using RSA key 0x281F0DB8D28D5469 # gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>" # gpg: aka "Michael S. Tsirkin <mst@redhat.com>" # Primary key fingerprint: 0270 606B 6F3C DF3D 0B17 0970 C350 3912 AFBE 8E67 # Subkey fingerprint: 5D09 FD08 71C8 F85B 94CA 8A0D 281F 0DB8 D28D 5469 * remotes/mst/tags/for_upstream: vhost-vsock: add virtio sockets device tests/acpi: speedup acpi tests virtio-pci: minor refactoring vhost: don't set vring call if no vector virtio-pci: error out when both legacy and modern modes are disabled virtio-balloon: fix stats vq migration virtio: add virtqueue_rewind() virtio-balloon: discard virtqueue element on reset virtio: zero vq->inuse in virtio_reset() virtio-pci: reduce modern_mem_bar size target-i386: present virtual L3 cache info for vcpus pc: Add 2.8 machine virtio-pci: use size from correct structure virtio: Tell the user what went wrong when event_notifier_init failed Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-09-12Update OpenBIOS images to c5542f2 built from submodule.Mark Cave-Ayland
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
2016-09-10vhost-vsock: add virtio sockets deviceStefan Hajnoczi
Implement the new virtio sockets device for host<->guest communication using the Sockets API. Most of the work is done in a vhost kernel driver so that virtio-vsock can hook into the AF_VSOCK address family. The QEMU vhost-vsock device handles configuration and live migration while the rx/tx happens in the vhost_vsock.ko Linux kernel driver. The vsock device must be given a CID (host-wide unique address): # qemu -device vhost-vsock-pci,id=vhost-vsock-pci0,guest-cid=3 ... For more information see: http://qemu-project.org/Features/VirtioVsock [Endianness fixes and virtio-ccw support by Claudio Imbrenda <imbrenda@linux.vnet.ibm.com>] Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> [mst: rebase to master] Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2016-09-10tests/acpi: speedup acpi testsMarcel Apfelbaum
Use kvm acceleration if available. Disable kernel-irqchip and use qemu64 cpu for both kvm and tcg cases. Using kvm acceleration saves about a second and disabling kernel-irqchip has no visible performance impact. Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Marcel Apfelbaum <marcel@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2016-09-09virtio-pci: minor refactoringMichael S. Tsirkin
!legacy && !modern is shorter than !(legacy || modern). I also perfer this (less ()s) as a matter of taste. Cc: Greg Kurz <gkurz@linux.vnet.ibm.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2016-09-09vhost: don't set vring call if no vectorJason Wang
We used to set vring call fd unconditionally even if guest driver does not use MSIX for this vritqueue at all. This will cause lots of unnecessary userspace access and other checks for drivers does not use interrupt at all (e.g virtio-net pmd). So check and clean vring call fd if guest does not use any vector for this virtqueue at all. Perf diffs (on rx) shows lots of cpus wasted on vhost_signal() were saved: # 28.12% -27.82% [vhost] [k] vhost_signal 14.44% -1.69% [kernel.vmlinux] [k] copy_user_generic_string 7.05% +1.53% [kernel.vmlinux] [k] __free_page_frag 6.51% +5.53% [vhost] [k] vhost_get_vq_desc ... Pktgen tests shows 15.8% improvement on rx pps and 6.5% on tx pps. Before: RX 2.08Mpps TX 1.35Mpps After: RX 2.41Mpps TX 1.44Mpps Signed-off-by: Jason Wang <jasowang@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2016-09-09virtio-pci: error out when both legacy and modern modes are disabledGreg Kurz
Without presuming if we got there because of a user mistake or some more subtle bug in the tooling, it really does not make sense to implement a non-functional device. Signed-off-by: Greg Kurz <gkurz@linux.vnet.ibm.com> Reviewed-by: Marcel Apfelbaum <marcel@redhat.com> Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Greg Kurz <groug@kaod.org> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2016-09-09virtio-balloon: fix stats vq migrationLadi Prosek
The statistics virtqueue is not migrated properly because virtio-balloon does not include s->stats_vq_elem in the migration stream. After migration the statistics virtqueue hangs because the host never completes the last element (s->stats_vq_elem is NULL on the destination QEMU). Therefore the guest never submits new elements and the virtqueue is hung. Instead of changing the migration stream format in an incompatible way, detect the migration case and rewind the virtqueue so the last element can be completed. Cc: Michael S. Tsirkin <mst@redhat.com> Cc: Roman Kagan <rkagan@virtuozzo.com> Cc: Stefan Hajnoczi <stefanha@redhat.com> Suggested-by: Roman Kagan <rkagan@virtuozzo.com> Signed-off-by: Ladi Prosek <lprosek@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2016-09-09virtio: add virtqueue_rewind()Stefan Hajnoczi
virtqueue_discard() requires a VirtQueueElement but virtio-balloon does not migrate its in-use element. Introduce a new function that is similar to virtqueue_discard() but doesn't require a VirtQueueElement. This will allow virtio-balloon to access element again after migration with the usual proviso that the guest may have modified the vring since last time. Cc: Michael S. Tsirkin <mst@redhat.com> Cc: Roman Kagan <rkagan@virtuozzo.com> Cc: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Ladi Prosek <lprosek@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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