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2012-09-26target-arm: use deposit instead of hardcoded versiontcg-arm-movcondAurelien Jarno
Use the deposit op instead of and hardcoded bit field insertion. It allows the host to emit the corresponding instruction if available. Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2012-09-26target-arm: mark a few integer helpers const and pureAurelien Jarno
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2012-09-26target-arm: convert sar, shl and shr helpers to TCGAurelien Jarno
Now that the movcond TCG op is available, it's possible to replace shl and shr helpers by TCG code. The code generated by TCG is slightly longer than the code generated by GCC for the helper but is still worth it as this avoid all the consequences of using an helper: globals saved back to memory, no possible optimization, call overhead, etc. Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2012-09-26target-arm: convert add_cc and sub_cc helpers to TCGAurelien Jarno
Now that the setcond TCG op is available, it's possible to replace add_cc and sub_cc helpers by TCG code. The code generated by TCG is actually very close to the one generated by GCC for the helper, and this avoid all the consequences of using an helper: globals saved back to memory, no possible optimization, call overhead, etc. Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2012-09-26target-arm: use globals for CC flagsAurelien Jarno
Use globals for CC flags instead of loading/storing them each they are accessed. This allows some optimizations to be performed by the TCG optimization passes. Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2012-09-26tcg/arm: Implement movcond_i32Peter Maydell
Implement movcond_i32 for ARM, as the sequence cmp c1, c2 movCC dst, v1 movCC dst, v2 (where the two conditions are each others' inverses). Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2012-09-26tcg/arm: Factor out code to emit immediate or reg-reg opPeter Maydell
The code to emit either an immediate cmp or a register cmp insn is duplicated in several places; factor it out into its own function. Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2012-09-25add a boot parameter to set reboot timeoutAmos Kong
Added an option to let qemu transfer a configuration file to bios, "etc/boot-fail-wait", which could be specified by command -boot reboot-timeout=T T have a max value of 0xffff, unit is ms. With this option, guest will wait for a given time if not find bootabled device, then reboot. If reboot-timeout is '-1', guest will not reboot, qemu passes '-1' to bios by default. This feature need the new seabios's support. Seabios pulls the value from the fwcfg "file" interface, this interface is used because SeaBIOS needs a reliable way of obtaining a name, value size, and value. It in no way requires that there be a real file on the user's host machine. Signed-off-by: Amos Kong <akong@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-09-25Clear handler only for valid fdOrit Wasserman
Signed-off-by: Orit Wasserman <owasserm@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-09-25Fix address handling in inet_nonblocking_connectOrit Wasserman
getaddrinfo can give us a list of addresses, but we only try to connect to the first one. If that fails we never proceed to the next one. This is common on desktop setups that often have ipv6 configured but not actually working. To fix this make inet_connect_nonblocking retry connection with a different address. callers on inet_nonblocking_connect register a callback function that will be called when connect opertion completes, in case of failure the fd will have a negative value Signed-off-by: Orit Wasserman <owasserm@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-09-25Separate inet_connect into inet_connect (blocking) and inet_nonblocking_connectOrit Wasserman
No need to add non blocking parameters to the blocking inet_connect add block parameter for inet_connect_opts instead of using QemuOpt "block". Signed-off-by: Orit Wasserman <owasserm@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-09-25Refactor inet_connect_opts functionMichael S. Tsirkin
refactor address resolution code to fix nonblocking connect remove getnameinfo call Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Amos Kong <akong@redhat.com> Signed-off-by: Orit Wasserman <owasserm@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-09-25configure: Allow builds without any system or user emulationStefan Weil
The old code aborted configure when no emulation target was selected. Even after removing the 'exit 1', it tried to read from STDIN when QEMU was configured with configure' '--disable-user' '--disable-system' This is fixed here. Signed-off-by: Stefan Weil <sw@weilnetz.de> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-09-25ivshmem: add 64bit optionGerd Hoffmann
This patch adds a "use64" property which will make the ivshmem driver register a 64bit memory bar when set, so you have something to play with when testing 64bit pci bits. It also allows to have quite big shared memory regions, like this: [root@fedora ~]# lspci -vs1:1 01:01.0 RAM memory: Red Hat, Inc Device 1110 Subsystem: Red Hat, Inc Device 1100 Physical Slot: 1-1 Flags: fast devsel Memory at fd400000 (32-bit, non-prefetchable) [disabled] [size=256] Memory at 8040000000 (64-bit, prefetchable) [size=1G] [ v5: rebase, update compat property for post-1.2 merge ] [ v4: rebase & adapt to latest master again ] [ v3: rebase & adapt to latest master ] [ v2: default to on as suggested by avi, turn off for pc-$old using compat property ] Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Tested-by: Cam Macdonell <cam@cs.ualberta.ca> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-09-25compat: turn off msi/msix on xhci for old machine typesGerd Hoffmann
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-09-25add pc-1.3 machine typeGerd Hoffmann
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-09-25Cleanup unused global var qemu_system_powerdownIgor Mammedov
All deps that used global qemu_system_powerdown var are now converted to notifiers, so remove it. Signed-off-by: Igor Mammedov <imammedo@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-09-25target-sparc: use notifier for signaling guest system_powerdown commandIgor Mammedov
Signed-off-by: Igor Mammedov <imammedo@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-09-25target-arm: use notifier for signaling guest system_powerdown commandIgor Mammedov
Acked-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Igor Mammedov <imammedo@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-09-25acpi: use notifier for signaling guest system_powerdown commandIgor Mammedov
In addition, there is no need to allocate an extra irq just for rising SCI in irq handler. Just rise SCI right from notifier handler instead. Signed-off-by: Igor Mammedov <imammedo@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-09-25Introduce powerdown_notifiersIgor Mammedov
Notifier will be used for signaling powerdown request to guest in a more general way and intended to replace very specific qemu_irq_rise(qemu_system_powerdown) and will allow to remove global variable qemu_system_powerdown. Signed-off-by: Igor Mammedov <imammedo@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-09-25Merge remote-tracking branch 'origin/master' into stagingAnthony Liguori
* origin/master: tcg/i386: fix build with -march < i686 tcg: Streamline movcond_i64 using movcond_i32 tcg: Streamline movcond_i64 using 32-bit arithmetic tcg: Sanity check goto_tb input tcg: Sanity check deposit inputs tcg: Add tcg_debug_assert tcg: Implement concat*_i64 with deposit_i64 tcg: Emit XORI as NOT for appropriate constants tcg: Optimize initial inputs for ori_i64 tcg: Emit ANDI as EXTU for appropriate constants tcg: Adjust descriptions of *cond opcodes tcg/mips: fix MIPS32(R2) detection
2012-09-26tcg/i386: fix build with -march < i686Aurelien Jarno
The movcond_i32 op has to be protected with TCG_TARGET_HAS_movcond_i32 to fix the build with -march < i686. Thanks to Richard Henderson for the hint. Reported-by: Alex Barcelo <abarcelo@ac.upc.edu> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2012-09-26tcg: Streamline movcond_i64 using movcond_i32Richard Henderson
When movcond_i32 is available we can further reduce the generated op count from 12 to 6, and the generated code size on i686 from 88 to 74 bytes. Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2012-09-26tcg: Streamline movcond_i64 using 32-bit arithmeticRichard Henderson
Avoiding 64-bit arithmetic (outside of the compare) reduces the generated op count from 15 to 12, and the generated code size on i686 from 105 to 88 bytes. Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2012-09-26tcg: Sanity check goto_tb inputRichard Henderson
Checking that we don't try for idx != [01] is trivial. Checking that we don't issue more than one of any index requires a tad more data and some ifdefs protecting that new variable. Signed-off-by: Richard Henderson <rth@twiddle.net> Cc: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2012-09-26tcg: Sanity check deposit inputsRichard Henderson
Given these are constants, checking once here means everything after can assume they're correct. Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2012-09-26tcg: Add tcg_debug_assertRichard Henderson
Like the C assert macro, except only enabled for CONFIG_DEBUG_TCG, and without having to set _NDEBUG and disable all other asserts at the same time. The use of __builtin_unreachable (when available) gives the compiler the same information, which may (or may not) help it optimize better. Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2012-09-26tcg: Implement concat*_i64 with deposit_i64Richard Henderson
For tcg_gen_concat_i32_i64 we only use deposit if the host supports it. For tcg_gen_concat32_i64 even if the host does not, as we get identical code before and after. Note that this relies on the ANDI -> EXTU patch for the identity claim. Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2012-09-26tcg: Emit XORI as NOT for appropriate constantsRichard Henderson
Note that xori_i64 failed to perform even the minimal optimizations promised by the README. Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2012-09-26tcg: Optimize initial inputs for ori_i64Richard Henderson
Copy the same optimizations from ori_i32. Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2012-09-26tcg: Emit ANDI as EXTU for appropriate constantsRichard Henderson
Note that andi_i64 failed to perform even the minimal optimizations promised by the README. Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2012-09-26tcg: Adjust descriptions of *cond opcodesRichard Henderson
The README file documented the operand ordering of the tcg_gen_* functions. Since we're documenting opcodes here, use the true operand ordering. Signed-off-by: Richard Henderson <rth@twiddle.net> Cc: malc <av1474@comtv.ru> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2012-09-26tcg/mips: fix MIPS32(R2) detectionAurelien Jarno
Fix the MIPS32(R2) cpu detection so that it also works with -march=octeon. Thanks to Andrew Pinski for the hint. Cc: Andrew Pinski <apinski@cavium.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2012-09-25Merge remote-tracking branch 'kwolf/for-anthony' into stagingAnthony Liguori
* kwolf/for-anthony: block: remove keep_read_only flag from BlockDriverState struct block: convert bdrv_commit() to use bdrv_reopen() block: vpc image file reopen block: vdi image file reopen block: vmdk image file reopen block: qcow image file reopen block: qcow2 image file reopen block: qed image file reopen block: raw image file reopen block: raw-posix image file reopen block: purge s->aligned_buf and s->aligned_buf_size from raw-posix.c block: use BDRV_O_NOCACHE instead of s->aligned_buf in raw-posix.c block: do not parse BDRV_O_CACHE_WB in block drivers block: move open flag parsing in raw block drivers to helper functions block: move aio initialization into a helper function block: Framework for reopening files safely block: make bdrv_set_enable_write_cache() modify open_flags block: correctly set the keep_read_only flag blockdev: preserve readonly and snapshot states across media changes
2012-09-25Merge remote-tracking branch 'stefanha/trivial-patches' into stagingAnthony Liguori
* stefanha/trivial-patches: w32: Always use standard instead of native format strings net/socket: Fix compiler warning (regression for MinGW) linux-user: Remove redundant null check and replace free by g_free qemu-timer: simplify qemu_run_timers TextConsole: saturate escape parameter in TTY_STATE_CSI curses: don't initialize curses when qemu is daemonized dtrace backend: add function to reserved words pflash_cfi01: Fix warning caused by unreachable code ioh3420: Remove unreachable code lm4549: Fix buffer overflow cadence_uart: Fix buffer overflow qemu-sockets: Fix potential memory leak qemu-ga: Remove unreachable code after g_error target-i386: Allow tsc-frequency to be larger then 2.147G
2012-09-25Merge remote-tracking branch 'afaerber/qom-cpu' into stagingAnthony Liguori
* afaerber/qom-cpu: target-alpha: Initialize env->cpu_model_str target-i386: Drop unused setscalar() macro target-i386: Kill cpudef config section support target-i386: x86_cpudef_setup() coding style change Eliminate cpus-x86_64.conf file target-i386: Move CPU models from cpus-x86_64.conf to C target-i386: Add missing CPUID_* constants Drop cpu_list_id macro target-i386: Fold -cpu ?cpuid, ?model output into -cpu help, drop ?dump MAINTAINERS: Add entry for QOM CPU
2012-09-25Merge remote-tracking branch 'bonzini/scsi-next' into stagingAnthony Liguori
* bonzini/scsi-next: SCSI: Standard INQUIRY data should report HiSup flag as set. scsi-disk: use scsi_data_cdb_length scsi: introduce scsi_cdb_length and scsi_data_cdb_length scsi-disk: fix check for out-of-range LBA scsi-disk: introduce check_lba_range iSCSI: We dont need to explicitely call qemu_notify_event() any more iSCSI: We need to support SG_IO also from iscsi_ioctl()
2012-09-25Merge remote-tracking branch 'bonzini/nbd-next' into stagingAnthony Liguori
* bonzini/nbd-next: nbd: add nbd_export_get_blockdev nbd: negotiate with named exports nbd: register named exports qemu-nbd: rewrite termination conditions to use a state machine nbd: add notification for closing an NBDExport nbd: track clients into NBDExport nbd: add reference counting to NBDExport nbd: do not leak nbd_trip coroutines when a connection is torn down nbd: make refcount interface public nbd: do not close BlockDriverState in nbd_export_close nbd: pass NBDClient to nbd_send_negotiate nbd: add more constants
2012-09-24block: remove keep_read_only flag from BlockDriverState structJeff Cody
The keep_read_only flag is no longer used, in favor of the bdrv flag BDRV_O_ALLOW_RDWR. Signed-off-by: Jeff Cody <jcody@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-09-24block: convert bdrv_commit() to use bdrv_reopen()Jeff Cody
Currently, bdrv_commit() reopens images r/w itself, via risky _delete() and _open() calls. Use the new safe method for drive reopen. Signed-off-by: Jeff Cody <jcody@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-09-24block: vpc image file reopenJeff Cody
There is currently nothing that needs to be done for VPC image file reopen. Signed-off-by: Jeff Cody <jcody@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-09-24block: vdi image file reopenJeff Cody
There is currently nothing that needs to be done for VDI reopen. Signed-off-by: Jeff Cody <jcody@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-09-24block: vmdk image file reopenJeff Cody
This patch supports reopen for VMDK image files. VMDK extents are added to the existing reopen queue, so that the transactional model of reopen is maintained with multiple image files. Signed-off-by: Jeff Cody <jcody@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-09-24block: qcow image file reopenJeff Cody
These are the stubs for the file reopen drivers for the qcow format. There is currently nothing that needs to be done by the qcow driver in reopen. Signed-off-by: Jeff Cody <jcody@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-09-24block: qcow2 image file reopenJeff Cody
These are the stubs for the file reopen drivers for the qcow2 format. There is currently nothing that needs to be done by the qcow2 driver in reopen. Signed-off-by: Jeff Cody <jcody@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-09-24block: qed image file reopenJeff Cody
These are the stubs for the file reopen drivers for the qed format. There is currently nothing that needs to be done by the qed driver in reopen. Signed-off-by: Jeff Cody <jcody@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-09-24block: raw image file reopenJeff Cody
These are the stubs for the file reopen drivers for the raw format. There is currently nothing that needs to be done by the raw driver in reopen. Signed-off-by: Jeff Cody <jcody@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-09-24block: raw-posix image file reopenJeff Cody
This is derived from the Supriya Kannery's reopen patches. This contains the raw-posix driver changes for the bdrv_reopen_* functions. All changes are staged into a temporary scratch buffer during the prepare() stage, and copied over to the live structure during commit(). Upon abort(), all changes are abandoned, and the live structures are unmodified. The _prepare() will create an extra fd - either by means of a dup, if possible, or opening a new fd if not (for instance, access control changes). Upon _commit(), the original fd is closed and the new fd is used. Upon _abort(), the duplicate/new fd is closed. Signed-off-by: Jeff Cody <jcody@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-09-24block: purge s->aligned_buf and s->aligned_buf_size from raw-posix.cJeff Cody
The aligned_buf pointer and aligned_buf size are no longer used in raw_posix.c, so remove all references to them. Signed-off-by: Jeff Cody <jcody@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>