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2014-11-13QMP/input-send-event: update document of union InputEventAmos Kong
Signed-off-by: Amos Kong <akong@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2014-11-12usb-host: fix usb_host_speed_compat tyopsGerd Hoffmann
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Gonglei <arei.gonglei@huawei.com>
2014-11-12target-i386: eliminate dead code and hoist common code out of "if"Paolo Bonzini
ist != 0 is checked in the first "if", so it cannot be true in the "else if" part. While at it, simplify the code and move the ESP alignment out of the conditionals. Reported by Coverity. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-11-12virtio-scsi: Fix comment for VirtIOSCSIReqFam Zheng
The cdb is not zeroed by virtio_scsi_init_req, so fix the misleading comment. Suggested-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Fam Zheng <famz@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-11-12virtio-scsi: dataplane: suppress guest notificationMing Lei
This patch uses vring_should_notify() to suppress guest notification, and looks notification frequency can be decreased from ~33K/sec to ~2K/sec in my test environment. Suggested-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Ming Lei <ming.lei@canonical.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-11-12esp: Do not overwrite ESP_TCHI after resetHannes Reinecke
After a reset ESP_TCHI should contain the unique ID of the chip. This value will be overwritten with the current tranfer count if the transfer count has previously been set. So we should always return the chip id if ESP_TCHI has never been written to. Signed-off-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-11-11Update version for v2.2.0-rc1 releasev2.2.0-rc1Peter Maydell
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-11-11Merge remote-tracking branch 'remotes/otubo/tags/pull-seccomp-20141111' into ↵Peter Maydell
staging seccomp branch queue # gpg: Signature made Tue 11 Nov 2014 16:12:48 GMT using RSA key ID 12F8BD2F # gpg: Can't check signature: public key not found * remotes/otubo/tags/pull-seccomp-20141111: seccomp: change configure to avoid arm 32 to break seccomp: whitelist syscalls fallocate(), fadvise64(), inotify_init1() and inotify_add_watch() Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-11-11seccomp: change configure to avoid arm 32 to breakEduardo Otubo
Current stable version of libseccomp (2.1.1) only supports i386 and x86_64 archs correctly. This patch limits the usage of the syscall filter for those archs and updates to the correct last version of libseccomp. This patch also fixes the bug: https://bugs.launchpad.net/qemu/+bug/1363641 Signed-off-by: Eduardo Otubo <eduardo.otubo@profitbricks.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Acked-by: Paul Moore <pmoore@redhat.com>
2014-11-11seccomp: whitelist syscalls fallocate(), fadvise64(), inotify_init1() and ↵Philipp Gesang
inotify_add_watch() fallocate() is needed for snapshotting. If it isn’t whitelisted $ qemu-img create -f qcow2 x.qcow 1G Formatting 'x.qcow', fmt=qcow2 size=1073741824 encryption=off cluster_size=65536 lazy_refcounts=off $ qemu-kvm -display none -monitor stdio -sandbox on x.qcow QEMU 2.1.50 monitor - type 'help' for more information (qemu) savevm foo (qemu) loadvm foo will fail, as will subsequent savevm commands on the same image. fadvise64(), inotify_init1(), inotify_add_watch() are needed by the SDL display. Without the whitelist entries, qemu-kvm -sandbox on fails immediately. In my tests fadvise64() is called 50--51 times per VM run. That number seems independent of the duration of the run. fallocate(), inotify_init1(), inotify_add_watch() are called once each. Accordingly, they are added to the whitelist at a very low priority. Signed-off-by: Philipp Gesang <philipp.gesang@intra2net.com> Signed-off-by: Eduardo Otubo <eduardo.otubo@profitbricks.com>
2014-11-11Merge remote-tracking branch ↵Peter Maydell
'remotes/mjt/tags/pull-trivial-patches-2014-11-11' into staging trivial patches for 2014-11-11 # gpg: Signature made Tue 11 Nov 2014 14:38:39 GMT using RSA key ID A4C3D7DB # gpg: Good signature from "Michael Tokarev <mjt@tls.msk.ru>" # gpg: aka "Michael Tokarev <mjt@corpit.ru>" # gpg: aka "Michael Tokarev <mjt@debian.org>" * remotes/mjt/tags/pull-trivial-patches-2014-11-11: block: Fix comment for bdrv_co_get_block_status sysbus: Correct SYSTEM_BUS(obj) defines target-i386: cpu: keeping function parameters alignment on new line xen-hvm: Remove redundant variable 'xstate' coroutine-sigaltstack: Change jmp_buf to sigjmp_buf pc-bios: petalogix-s3adsp1800.dtb: Use 'xlnx, xps-ethernetlite-2.00.a' instead of 'xlnx, xps-ethernetlite-2.00.b' gdbstub: Add a missing case of signal number translation in gdbstub numa: make 'info numa' take into account hotplugged memory slirp/smbd: modify/set several parameters in generated smbd.conf qemu-doc.texi: fix typos in x509 examples icc_bus: fix typo ICC_BRIGDE -> ICC_BRIDGE Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-11-11block: Fix comment for bdrv_co_get_block_statusFam Zheng
It returns more information than binary, fix the comment. Signed-off-by: Fam Zheng <famz@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2014-11-11sysbus: Correct SYSTEM_BUS(obj) definesGonglei
Signed-off-by: Gonglei <arei.gonglei@huawei.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2014-11-11target-i386: cpu: keeping function parameters alignment on new lineChen Fan
Signed-off-by: Chen Fan <chen.fan.fnst@cn.fujitsu.com> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2014-11-11xen-hvm: Remove redundant variable 'xstate'Chen Gang
In xen_hvm_change_state_handler(), we can pass 'opaque' with type cast to xen_main_loop_prepare() directly, there's no need to use additional variable for it. Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com> Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2014-11-11Merge remote-tracking branch 'remotes/armbru/tags/for-upstream' into stagingPeter Maydell
Patches to MAINTAINERS that haven't been picked up # gpg: Signature made Tue 11 Nov 2014 08:46:55 GMT using RSA key ID EB918653 # gpg: Good signature from "Markus Armbruster <armbru@redhat.com>" # gpg: aka "Markus Armbruster <armbru@pond.sub.org>" * remotes/armbru/tags/for-upstream: Add Migration maintainer MAINTAINERS: add section for QEMU Guest Agent MAINTAINERS: add myself as bootdevice.c maintainer Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-11-11virtio-scsi: dataplane: fix allocation for 'cmd_vrings'Ming Lei
The size of each element should be sizeof(VirtIOSCSIVring *). Signed-off-by: Ming Lei <ming.lei@canonical.com> Reviewed-by: Fam Zheng <famz@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-11-11Merge remote-tracking branch 'remotes/riku/tags/pull-linux-user-20141111' ↵Peter Maydell
into staging linux-user pull for 2.2 Two last minute fixes uncovered and fixed by Tom Musta and Alexander Graf, thanks # gpg: Signature made Tue 11 Nov 2014 06:36:02 GMT using RSA key ID DE3C9BC0 # gpg: Good signature from "Riku Voipio <riku.voipio@iki.fi>" # gpg: aka "Riku Voipio <riku.voipio@linaro.org>" * remotes/riku/tags/pull-linux-user-20141111: linux-user: Fix up timer id handling linux-user: Do not subtract offset from end address Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-11-11Add Migration maintainerJuan Quintela
Signed-off-by: Juan Quintela <quintela@trasno.org> Reviewed-by: Amit Shah <amit.shah@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com>
2014-11-11MAINTAINERS: add section for QEMU Guest AgentMichael Roth
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com>
2014-11-11MAINTAINERS: add myself as bootdevice.c maintainerGonglei
bootdevice.c was created by me, and I wrote most of the code in this file. And now I can maintain it, I'd hope nobody object this. Cc: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Gonglei <arei.gonglei@huawei.com> Signed-off-by: Markus Armbruster <armbru@redhat.com>
2014-11-11coroutine-sigaltstack: Change jmp_buf to sigjmp_bufWillem Pinckaers
This is a simple patch to change the type of old_env from jmp_buf to sigjmp_buf. old_env is used by sigsetjmp and as such should be a sigjmp_buf. This fixes a stack_chk fail in a OSX 32bit build. Since at least on OSX sigjmp_buf is four bytes larger then a jmpbuf, resulting in an overflow in sigsetjmp. Due to variable reordering this overwrites the stack cookie. Signed-off-by: Willem Pinckaers <willem_qemu@lekkertech.net> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Peter: I think I must have missed this one when I converted all the jmp_buf to sigjmp_buf in commit 6ab7e546. Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2014-11-11xhci: add sanity checks to xhci_lookup_uportGerd Hoffmann
Also catch xhci_lookup_uport failures in post_load. https://bugzilla.redhat.com/show_bug.cgi?id=1074219 Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2014-11-11Provide the missing LIBUSB_LOG_LEVEL_* for older libusb or FreeBSD. ↵Chris Johns
Providing just the needed value as a defined. Signed-off-by: Chris Johns <chrisj@rtems.org> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2014-11-11linux-user: Fix up timer id handlingAlexander Graf
When creating a timer handle, we give the timer id a special magic offset of 0xcafe0000. However, we never mask that offset out of the timer id before we start using it to dereference our timer array. So we always end up aborting timer operations because the timer id is out of bounds. This was not an issue before my patch e52a99f756e ("linux-user: Simplify timerid checks on g_posix_timers range") because before we would blindly mask anything above the first 16 bits. This patch simplifies the code around timer id creation by introducing a proper target_timer_id typedef that is s32, just like Linux has it. It also changes the magic offset to a value that makes all timer ids be positive. Reported-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Tom Musta <tommusta@gmail.com> Tested-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2014-11-11linux-user: Do not subtract offset from end addressTom Musta
When computing the upper address of a program segment, do not subtract the offset from the virtual address; instead compute the sum of the virtual address and the memory size. Signed-off-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2014-11-11pc-bios: petalogix-s3adsp1800.dtb: Use 'xlnx, xps-ethernetlite-2.00.a' ↵Chen Gang
instead of 'xlnx, xps-ethernetlite-2.00.b' For Linux upstream kernel (e.g. 3.17-rc7), the related compatible string 'xlnx,xps-ethernetlite-2.00.a' is supported, but 'b' is not supported, so change qemu dtb file to match kernel driver. The related operation for qemu (after this patch): yum install libvirt yum install tunctl tunctl -b ip link set tap0 up brctl addif virbr0 tap0 ./configure make ./microblaze-softmmu/qemu-system-microblaze -M petalogix-s3adsp1800 \ -kernel ../linux-stable.microblaze/arch/microblaze/boot/linux.bin \ -no-reboot -append "console=ttyUL0,115200 doreboot" -nographic \ -net nic,vlan=0,model=xlnx.xps-ethernetlite,macaddr=00:16:35:AF:94:00 \ -net tap,vlan=0,ifname=tap0,script=no,downscript=no in microblaze qemu bash (guest machine): ifconfig eth0 add 192.168.122.2 netmask 255.255.255.0 ifconfig eth0 up Then can telnet 192.168.122.2 directly without password from the host machine. The related operation for generating new dtb: building Linux kernel firstly, then get dts tool "./scripts/dts/dts". "./scripts/dtc/dtc -I dtb -O dts -o ../work.dts ../qemu/petalogix-s3adsp1800.dtb" edit work.dts (replace 'xlnx,xps-ethernetlite-2.00.b') "./scripts/dtc/dtc -I dts -O dtb -o ..qemu/petalogix-s3adsp1800.dtb ../work.dts" (Since I am not quite sure whether can read this patch or not, I put the related dtb file in attachment, please check, thanks). Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2014-11-11gdbstub: Add a missing case of signal number translation in gdbstubMartin Simmons
While using qemu with gdb "target remote" to debug an application that uses fork and exec, the qemu process receives SIGSTOP every time the forked process terminates (sending SIGCHLD). This is caused by a missing call to gdb_signal_to_target in gdbstub.c, which is fixed by this patch: Signed-off-by: Martin Simmons <martin@lispworks.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2014-11-11numa: make 'info numa' take into account hotplugged memoryzhanghailiang
When do memory hotplug, if there is numa node, we should add the memory size to the corresponding node memory size. It affects the result of hmp command "info numa". Reviewed-by: Igor Mammedov <imammedo@redhat.com> Signed-off-by: zhanghailiang <zhang.zhanghailiang@huawei.com> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2014-11-11slirp/smbd: modify/set several parameters in generated smbd.confPeter Wu
The file sharing module should not handle printers, so disable it. The options 'load printers' and 'printing' have been available since the beginning (May 1996, commit 0e8fd3398771da2f016d72830179507f3edda51b). Option 'disable spoolss' is available since Samba 2.0.4, commit de5f42c9d9172592779fa2504d44544e3b6b1c0d). Next, "socket address" was reported as deprecated, use a combination of "interfaces" and "bind interfaces only" instead (available since October 1997, commit 79f4fb52c1ed56fd843f81b4eb0cdd2991d4d0f4). Override cache directory to avoid writing to a global directory. Option available since Samba 3.4.0, Jan 2009, commit 19a05bf2f485023b11b41dfae3f6459847d55ef7. Set "usershare max shared=0" to prevent a global directory from being used. Option available since Samba 3.0.23, February 2006, commit 5831715049f2d460ce42299963a5defdc160891b. The last option was introduced with Samba 3.4.0, but previously "state directory" was already added which exists in Samba 3.4.0. As unknown parameters are ignored (while printing a warning), it should be safe to add another option. Signed-off-by: Peter Wu <peter@lekensteyn.nl> Cc: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2014-11-10Merge remote-tracking branch 'remotes/xtensa/tags/20141110-xtensa' into stagingPeter Maydell
Xtensa fixes for 2.2: - fix entry opcode register window checking and add unit test. # gpg: Signature made Mon 10 Nov 2014 15:01:47 GMT using RSA key ID F83FA044 # gpg: Good signature from "Max Filippov <max.filippov@cogentembedded.com>" # gpg: aka "Max Filippov <jcmvbkbc@gmail.com>" * remotes/xtensa/tags/20141110-xtensa: target-xtensa: add entry overflow test target-xtensa: add missing window check for entry Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-11-10Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into stagingPeter Maydell
Block patches # gpg: Signature made Mon 10 Nov 2014 09:42:07 GMT using RSA key ID C88F2FD6 # gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>" * remotes/kevin/tags/for-upstream: block/vdi: Limit maximum size even futher qapi: Complete BlkdebugEvent iotests: Add test for non-existing backing file block: Propagate error in bdrv_img_create() qemu-img: Omit error_report() after img_open() Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-11-10target-xtensa: add entry overflow testMax Filippov
Check that entry instruction raises window overflow exception when PS.CALLINC points to live registers. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2014-11-10target-xtensa: add missing window check for entryMax Filippov
Entry opcode needs to check if moving to new register frame would cause register window overflow. Entry used in function prologue never overflows because preceding windowed call* opcode writes return address to the target register window frame, causing overflow exceptions at the point of call. But when a sequence of entry opcodes is used for register window spilling there may not be a call or other opcode that would cause window check between entries and they would not raise overflow exception themselves resulting in data corruption. Cc: qemu-stable@nongnu.org Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2014-11-10Merge remote-tracking branch 'remotes/cohuck/tags/s390x-20141105' into stagingPeter Maydell
Several bugfixes for s390x: - instruction decoding and sparse warning in kvm - overlong input and hangs in the sclp consoles # gpg: Signature made Wed 05 Nov 2014 15:42:14 GMT using RSA key ID C6F02FAF # gpg: Good signature from "Cornelia Huck <huckc@linux.vnet.ibm.com>" # gpg: aka "Cornelia Huck <cornelia.huck@de.ibm.com>" * remotes/cohuck/tags/s390x-20141105: s390x/sclpconsole: Avoid hanging SCLP ASCII console s390x/sclpconsole-lm: Fix hanging SCLP line mode console s390x/sclpconsole-lm: truncate input if line is too long s390x/kvm: Fix warning from sparse s390x/kvm: Fix opcode decoding for eb instruction handler Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-11-10Merge remote-tracking branch 'remotes/lalrae/tags/mips-20141107' into stagingPeter Maydell
* remotes/lalrae/tags/mips-20141107: target-mips: fix multiple TCG registers covering same data mips: Ensure PC update with MTC0 single-stepping target-mips: fix for missing delay slot in BC1EQZ and BC1NEZ mips: Set the CP0.Config3.DSP and CP0.Config3.DSP2P bits mips: Add macros for CP0.Config3 and CP0.Config4 bits mips: Respect CP0.Status.CU1 for microMIPS FP branches mips: Remove CONFIG_VT82C686 from non-Fulong configs Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-11-10esp: fix coding standardsPaolo Bonzini
Reported-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-11-10Merge remote-tracking branch 'remotes/amit/tags/vser-2.2.0-queue-2' into stagingPeter Maydell
Fixes a crash when a virtio-serial port is added without a name to it. # gpg: Signature made Fri 07 Nov 2014 04:58:05 GMT using RSA key ID 854083B6 # gpg: Good signature from "Amit Shah <amit@amitshah.net>" # gpg: aka "Amit Shah <amit@kernel.org>" # gpg: aka "Amit Shah <amitshah@gmx.net>" * remotes/amit/tags/vser-2.2.0-queue-2: virtio-serial: avoid crash when port has no name Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-11-10Merge remote-tracking branch 'mreitz/block' into queue-blockKevin Wolf
* mreitz/block: block/vdi: Limit maximum size even futher
2014-11-09block/vdi: Limit maximum size even futherMax Reitz
The block layer read and write functions do not like requests which are bigger than INT_MAX bytes. Since the VDI bmap is read and written in a single operation, its size is therefore limited accordingly. This reduces the maximum VDI image size supported by QEMU to half of what it currently is (down to approximately 512 TB). The VDI test 084 has to be adapted accordingly. Actually, one could clearly see that it was broken from the "Could not open 'TEST_DIR/t.IMGFMT': Invalid argument" line for an image which was supposed to work just fine. Signed-off-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Peter Lieven <pl@kamp.de>
2014-11-07qapi: Complete BlkdebugEventMax Reitz
Several events were missing from the QAPI enum, add them. Reported-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Max Reitz <mreitz@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2014-11-07virtio-scsi: work around bug in old BIOSesPaolo Bonzini
Old BIOSes left some padding by mistake after the req_size/resp_size. New QEMU does not like it, thinking it is a bidirectional command. As a workaround, we can check if the ANY_LAYOUT bit is set; if not, we always consider the first buffer as the virtio-scsi request/response, because, back when QEMU did not support ANY_LAYOUT, it expected the payload to start at the second element of the iovec. This can show up during migration. Cc: qemu-stable@nongnu.org Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-11-07target-mips: fix multiple TCG registers covering same dataYongbok Kim
Avoid to allocate different TCG registers for the FPU registers that are mapped on the MSA vectore registers. Signed-off-by: Yongbok Kim <yongbok.kim@imgtec.com> Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
2014-11-07mips: Ensure PC update with MTC0 single-steppingMaciej W. Rozycki
Correct the way PC is updated when single-stepping instructions, by keeping the old PC only for the BS_EXCP (exception condition) state. Some MTC0 (and possibly other) instructions switch to the BS_STOP state to terminate the current translation block, so that the state transition of the simulated CPU resulting from the CP0 operation takes effect with the following instruction. This happens with `mtc0 <reg>,c0_config' for example, typically used to set KSEG0 cacheability. While single-stepping this has a side-effect of not advancing the PC past the instruction just executed; subsequent single-step traps will stop at the same instruction repeatedly. Example: (gdb) stepi 0x80004d24 in _start () 5: x/i $pc => 0x80004d24 <_start+364>: mfc0 t1,c0_config (gdb) 0x80004d28 in _start () 5: x/i $pc => 0x80004d28 <_start+368>: li at,-8 (gdb) 0x80004d2c in _start () 5: x/i $pc => 0x80004d2c <_start+372>: and t1,t1,at (gdb) 0x80004d30 in _start () 5: x/i $pc => 0x80004d30 <_start+376>: ori t1,t1,0x3 (gdb) 0x80004d34 in _start () 5: x/i $pc => 0x80004d34 <_start+380>: mtc0 t1,c0_config (gdb) 0x80004d34 in _start () 5: x/i $pc => 0x80004d34 <_start+380>: mtc0 t1,c0_config (gdb) 0x80004d34 in _start () 5: x/i $pc => 0x80004d34 <_start+380>: mtc0 t1,c0_config (gdb) 0x80004d34 in _start () 5: x/i $pc => 0x80004d34 <_start+380>: mtc0 t1,c0_config (gdb) -- oops! Signed-off-by: Maciej W. Rozycki <macro@codesourcery.com> Reviewed-by: Leon Alrae <leon.alrae@imgtec.com> Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
2014-11-07target-mips: fix for missing delay slot in BC1EQZ and BC1NEZLeon Alrae
New R6 COP1 conditional branches currently don't have delay slot. Fixing this by setting MIPS_HFLAG_BDS32 flag which is required for branches having 4-byte delay slot. Signed-off-by: Leon Alrae <leon.alrae@imgtec.com> Reviewed-by: Yongbok Kim <yongbok.kim@imgtec.com>
2014-11-07mips: Set the CP0.Config3.DSP and CP0.Config3.DSP2P bitsMaciej W. Rozycki
Set the CP0.Config3.DSP2P bit for the 74kf processor and both that bit and the CP0.Config3.DSP bit for the artificial mips32r5-generic and mips64dspr2 processors. They have the DSPr2 ASE enabled in `insn_flags' and CPUs that implement that ASE need to have both CP0.Config3.DSP and CP0.Config3.DSP2P set or software won't detect its presence. Signed-off-by: Maciej W. Rozycki <macro@codesourcery.com> Reviewed-by: Leon Alrae <leon.alrae@imgtec.com> [leon.alrae@imgtec.com: remove DSP flags from mips32r5-generic] Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
2014-11-07mips: Add macros for CP0.Config3 and CP0.Config4 bitsMaciej W. Rozycki
Define macros for CP0.Config3 and CP0.Config4 bits. These used to be exhaustive as at MIPS32r3, but more bits may have been added since. Signed-off-by: Maciej W. Rozycki <macro@codesourcery.com> Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
2014-11-07esp-pci: fixup deadlock with linuxHannes Reinecke
A linux guest will be issuing messages: [ 32.124042] DC390: Deadlock in DataIn_0: DMA aborted unfinished: 000000 bytes remain!! [ 32.126348] DC390: DataIn_0: DMA State: 0 and the HBA will fail to work properly. Reason is the emulation is not setting the 'DMA transfer done' status correctly. Signed-off-by: Hannes Reinecke <hare@suse.de> Cc: qemu-stable@nongnu.org Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-11-07mips: Respect CP0.Status.CU1 for microMIPS FP branchesMaciej W. Rozycki
Make microMIPS FP branches respect CP0.Status.CU1 and trap with a Coprocessor Unusable exception if COP1 has been disabled; also trap if no FPU is present at all. Standard MIPS FP instruction encodings have a more regular structure and branches are covered with a single umbrella along other instructions. This is not the case with the microMIPS encoding, this case has to be taken care of explicitly here. Code to do so has been copied from the standard MIPS code handler for OPC_CP1, in `decode_opc'. Problems arising from this bug will generally only show up on user context switches in operating systems making use of lazy FP context switches, such as Linux. It will also more readily trigger if software FPU emulation is used, either implicitly on a non-float CPU, or forced on a hard-float CPU such as with the "nofpu" Linux kernel command line argument. The problem may have been easily missed because we have no hard-float microMIPS CPU configuration present; in fact we have no microMIPS CPU configuration of any kind present. Signed-off-by: Maciej W. Rozycki <macro@codesourcery.com> Reviewed-by: Leon Alrae <leon.alrae@imgtec.com> Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
2014-11-07mips: Remove CONFIG_VT82C686 from non-Fulong configsMaciej W. Rozycki
Fix the regression introduced with commit 47934d0aadc075b05ce2d9e8a44fa6a46edd1afa [hw: move ISA bridges and devices to hw/isa/, configure with default-configs/], by removing CONFIG_VT82C686 from configurations that previously did not enable it. That southbridge is only available on Fulong platforms (CONFIG_FULONG) that are exclusively little-endian, 64-bit MIPS. Previously vt82c686.o was pulled explicitly with obj-$(CONFIG_FULONG). Signed-off-by: Maciej W. Rozycki <macro@codesourcery.com> Reviewed-by: Leon Alrae <leon.alrae@imgtec.com> Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
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