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2010-10-20Export qemu_ram_addr_from_hostMarcelo Tosatti
To be used by next patches. Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2010-10-20kvm: x86: add mce supportMarcelo Tosatti
Port qemu-kvm's MCE support commit c68b2374c9048812f488e00ffb95db66c0bc07a7 Author: Huang Ying <ying.huang@intel.com> Date: Mon Jul 20 10:00:53 2009 +0800 Add MCE simulation support to qemu/kvm KVM ioctls are used to initialize MCE simulation and inject MCE. The real MCE simulation is implemented in Linux kernel. The Kernel part has been merged. Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2010-10-20iothread: use signalfdMarcelo Tosatti
Block SIGALRM, SIGIO and consume them via signalfd. Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2010-10-20signalfd compatibilityMarcelo Tosatti
Port qemu-kvm's signalfd compat code. commit 5a7fdd0abd7cd24dac205317a4195446ab8748b5 Author: Anthony Liguori <aliguori@us.ibm.com> Date: Wed May 7 11:55:47 2008 -0500 Use signalfd() in io-thread This patch reworks the IO thread to use signalfd() instead of sigtimedwait() This will eliminate the need to use SIGIO everywhere. Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2010-10-20Add svm cpuid featuresJoerg Roedel
This patch adds the svm cpuid feature flags to the qemu intialization path. It also adds the svm features available on phenom to its cpu-definition and extends the host cpu type to support all svm features KVM can provide. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2010-10-20Set cpuid definition to 0 before initializing itJoerg Roedel
This patch cleans the (stack-allocated) cpuid definition to 0 before actually initializing it. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2010-10-20configure: Support disabling warnings in $gcc_flagsMarkus Armbruster
-Wall enables a bunch of warnings at once. configure puts it after $gcc_flags. This makes it impossible to disable warnings enabled by -Wall there. Fix by putting configured flags last. Signed-off-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-10-20tcg: Fix compiler error (comparison of unsigned expression)Stefan Weil
When qemu is configured with --enable-debug-tcg, gcc throws this warning (or error with -Werror): tcg/tcg.c:1030: error: comparison of unsigned expression >= 0 is always true Fix it by removing the >= 0 part. The type cast to 'unsigned' catches negative values of op (which should never happen). This is a modification of Hollis Blanchard's patch. Cc: Hollis Blanchard <hollis@penguinppc.org> Cc: Blue Swirl <blauwirbel@gmail.com> Signed-off-by: Stefan Weil <weil@mail.berlios.de> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-10-20wacom tablet: activate event handlers.Gerd Hoffmann
Add qemu_activate_mouse_event_handler() calls to the usb wavom tablet so it actually receives events. Also make sure we only remove the handler if we registered it before. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2010-10-20vmmouse: adapt to mouse handler changes.Gerd Hoffmann
This patch updates the vmmouse handler registration and activation. Old behavior: vmmouse_read_id, vmmouse_request_relative and vmmouse_request_absolute unregister the handler and re-register it. New behavior: vmmouse_request_relative and vmmouse_request_absolute will unregister the handler in case the mode did change. Then register and active the handler with current mode if needed. Note that the old code never ever *activates* the handler, so the vmmouse doesn't receive events. This trips up Fedora 14 for example: Boot a default install without usb tablet, watch the X-Server activating the vmmouse then, enjoy a non-functional mouse. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2010-10-20[virtio-9p] Add support to v9fs_string_alloc_printf() for handling %lu.Venkateswararao Jujjuri (JV)
Signed-off-by: Venkateswararao Jujjuri <jvrao@linux.vnet.ibm.com>
2010-10-20[virtio-9p] Use preadv/pwritev instead of readv/writevSanchit Garg
readv & writev, read & write respectively from the current offset of the file & hence their use has to be preceeded by a call to lseek. preadv/writev can be used instead, as they take the offset as an argument. This saves one system call( lseek ). In case preadv is not supported, it is implemented by an lseek followed by a readv. Depending upon the configuration of QEMU, the appropriate read & write methods are selected. This patch also fixes the zero byte read/write bug & obviates the need to apply a fix for that bug separately. Signed-off-by: M. Mohan Kumar <mohan@in.ibm.com> Signed-off-by: Sanchit Garg <sancgarg@linux.vnet.ibm.com> Signed-off-by: Venkateswararao Jujjuri <jvrao@linux.vnet.ibm.com>
2010-10-20[virtio-9p] Qemu 9p commandline options validity checksHarsh Prateek Bora
Signed-off-by: Harsh Prateek Bora <harsh@linux.vnet.ibm.com> Signed-off-by: Venkateswararao Jujjuri <jvrao@linux.vnet.ibm.com>
2010-10-20virtio-9p: Support mapped posix aclAneesh Kumar K.V
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Venkateswararao Jujjuri <jvrao@linux.vnet.ibm.com>
2010-10-20virtio-9p: Use layered xattr approachAneesh Kumar K.V
We would need this to make sure we handle the mapped security model correctly for different xattr names. Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Venkateswararao Jujjuri <jvrao@linux.vnet.ibm.com>
2010-10-20[virtio-9p] Ignore O_DIRECT hint from client.Venkateswararao Jujjuri (JV)
The O_DIRECT flag imposes alignment restrictions on the length and address of userspace buffers and the file offset of I/Os. While VirtFS/9P has plans to implement O_DIRECT behavior on the server, for now we will stick to a behavior like NFS by bypassing the page cache only on the client. Server may still cache the I/O. Signed-off-by: Venkateswararao Jujjuri <jvrao@linux.vnet.ibm.com>
2010-10-20qemu-virtio-9p: Implement TREADLINK operation for 9p2000.LM. Mohan Kumar
Synopsis size[4] TReadlink tag[2] fid[4] size[4] RReadlink tag[2] target[s] Description Readlink is used to return the contents of the symoblic link referred by fid. Contents of symboic link is returned as a response. target[s] - Contents of the symbolic link referred by fid. Signed-off-by: M. Mohan Kumar <mohan@in.ibm.com> Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Venkateswararao Jujjuri <jvrao@linux.vnet.ibm.com>
2010-10-20[virtio-9p] Introduce server side TFSYNC/RFSYNC for dotlVenkateswararao Jujjuri (JV)
SYNOPSIS size[4] Tfsync tag[2] fid[4] size[4] Rfsync tag[2] DESCRIPTION The Tfsync transaction transfers ("flushes") all modified in-core data of file identified by fid to the disk device (or other permanent storage device) where that file resides. Signed-off-by: Venkateswararao Jujjuri <jvrao@linux.vnet.ibm.com>
2010-10-20qemu-virtio9p: Implement TGETLOCKM. Mohan Kumar
Synopsis size[4] TGetlock tag[2] fid[4] getlock[n] size[4] RGetlock tag[2] getlock[n] Description TGetlock is used to test for the existence of byte range posix locks on a file identified by given fid. The reply contains getlock structure. If the lock could be placed it returns F_UNLCK in type field of getlock structure. Otherwise it returns the details of the conflicting locks in the getlock structure getlock structure: type[1] - Type of lock: F_RDLCK, F_WRLCK start[8] - Starting offset for lock length[8] - Number of bytes to lock If length is 0, lock all bytes starting at the location 'start' through to the end of file proc_id[4] - process id that wants to take lock/owns the task in case of reply client[4] - Client id of the system that owns the process Signed-off-by: M. Mohan Kumar <mohan@in.ibm.com> Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Venkateswararao Jujjuri <jvrao@linux.vnet.ibm.com>
2010-10-20[virto-9p] Implement TLOCKM. Mohan Kumar
Synopsis size[4] TLock tag[2] fid[4] flock[n] size[4] RLock tag[2] status[1] Description Tlock is used to acquire/release byte range posix locks on a file identified by given fid. The reply contains status of the lock request flock structure: type[1] - Type of lock: F_RDLCK, F_WRLCK, F_UNLCK flags[4] - Flags could be either of P9_LOCK_FLAGS_BLOCK(1) - Blocked lock request, if there is a conflicting lock exists, wait for that lock to be released. P9_LOCK_FLAGS_RECLAIM(2) - Reclaim lock request, used when client is trying to reclaim a lock after a server restrart (due to crash) start[8] - Starting offset for lock length[8] - Number of bytes to lock If length is 0, lock all bytes starting at the location 'start' through to the end of file pid[4] - PID of the process that wants to take lock client_id[4] - Unique client id status[1] - Status of the lock request, can be P9_LOCK_SUCCESS(0), P9_LOCK_BLOCKED(1), P9_LOCK_ERROR(2) or P9_LOCK_GRACE(3) P9_LOCK_SUCCESS - Request was successful P9_LOCK_BLOCKED - A conflicting lock is held by another process P9_LOCK_ERROR - Error while processing the lock request P9_LOCK_GRACE - Server is in grace period, it can't accept new lock requests in this period (except locks with P9_LOCK_FLAGS_RECLAIM flag set) Signed-off-by: M. Mohan Kumar <mohan@in.ibm.com> Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Venkateswararao Jujjuri <jvrao@linux.vnet.ibm.com>
2010-10-20[virtio-9p] open should not return EBADFSripathi Kodi
When 9P server fails to create a file due to permission problems it should return EPERM. However the current 9P2000.L code returns EBADF. EBADF is NOT a valid return value from open() call. The problem is because we do not preserve the errno variable properly. If the file open had failed, the call to close() on the fd in v9fs_post_lcreate() fails and sets errno to EBADF. We should preserve the errno that we got from open() and we should call close() only if we had a valid fd. Signed-off-by: Sripathi Kodi <sripathik@in.ibm.com> Signed-off-by: Venkateswararao Jujjuri <jvrao@linux.vnet.ibm.com>
2010-10-20trace: improve info trace outputBlue Swirl
Use PRI*64 to print full 64 bit data even on ILP32 hosts. Print also sixth tracepoint parameter. Acked-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Cc: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-10-20trace: Format strings must begin/end with double quotesStefan Hajnoczi
Document the restriction that format strings must begin and end with double quotes. This is for easy parsing since we don't run cpp over trace-events. Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-10-20apic: convert debug printf statements to tracepointsBlue Swirl
Replace debug printf statements with tracepoints. Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-10-20trace: Relax trace-events parsing regex in simpletrace.pyStefan Hajnoczi
The regular expression to parse trace event definitions assumed the format string would be a simple double-quoted string. However, we now use PRI?64 for portability which splits string literals. The regular expression can disregard the format string entirely since simpletrace.py never needs to use it. Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-10-18issue snd_pcm_start() when capturing audioJindrich Makovicka
snd_pcm_start() starts the capture process and ensures that the events are delivered to the poll handler. Without the call, capture can be started only when there is simultaneous playback running. Signed-off-by: Jindrich Makovicka <makovick@gmail.com> Signed-off-by: malc <av1474@comtv.ru>
2010-10-18fix 100% CPU load when idle with ALSAJindrich Makovicka
Playback control function did not disable polling when playback stops. Caused busy spinning of the main loop due to unprocessed events. Signed-off-by: Jindrich Makovicka <makovick@gmail.com> Signed-off-by: malc <av1474@comtv.ru>
2010-10-13trace: print a warning if user tries to enable an unknown trace eventBlue Swirl
There was no warning if a bad trace event name was given to 'trace-event' command, thus the user could think that the command was successful even if this was not the case. Print a warning if the user tries to enable a trace event which is not known. Acked-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-10-13mips: avoid write only variablesBlue Swirl
Compiling with GCC 4.6.0 20100925 produced a lot of warnings like: /src/qemu/target-mips/translate.c: In function 'gen_ld': /src/qemu/target-mips/translate.c:1039:17: error: variable 'opn' set but not used [-Werror=unused-but-set-variable] Fix by adding a dummy cast so that the variable is not unused. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-10-13ppc: avoid write only variablesBlue Swirl
Compiling with GCC 4.6.0 20100925 produced warnings: /src/qemu/target-ppc/op_helper.c: In function 'helper_icbi': /src/qemu/target-ppc/op_helper.c:351:14: error: variable 'tmp' set but not used [-Werror=unused-but-set-variable] /src/qemu/target-ppc/op_helper.c: In function 'do_6xx_tlb': /src/qemu/target-ppc/op_helper.c:3805:28: error: variable 'EPN' set but not used [-Werror=unused-but-set-variable] /src/qemu/target-ppc/op_helper.c: In function 'do_74xx_tlb': /src/qemu/target-ppc/op_helper.c:3838:28: error: variable 'EPN' set but not used [-Werror=unused-but-set-variable] Fix by adding a dummy cast so that the variable is not unused. Delete tmp. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-10-13i386: avoid a write only variableBlue Swirl
Compiling with GCC 4.6.0 20100925 produced warnings: /src/qemu/target-i386/op_helper.c: In function 'switch_tss': /src/qemu/target-i386/op_helper.c:283:53: error: variable 'new_trap' set but not used [-Werror=unused-but-set-variable] Fix by adding a dummy cast so that the variable is not unused. Add also pointer to docs. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-10-13vnc: avoid write only variablesBlue Swirl
Compiling with GCC 4.6.0 20100925 produced warnings: /src/qemu/ui/vnc.c: In function 'vnc_client_cache_auth': /src/qemu/ui/vnc.c:217:12: error: variable 'qdict' set but not used [-Werror=unused-but-set-variable] /src/qemu/ui/vnc.c: In function 'vnc_display_open': /src/qemu/ui/vnc.c:2526:9: error: variable 'acl' set but not used [-Werror=unused-but-set-variable] Fix by making the variable declarations and their uses also conditional to debug definition. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-10-13cris: avoid a write only variableBlue Swirl
Compiling with GCC 4.6.0 20100925 produced a warning: In file included from /src/qemu/target-cris/translate.c:3154:0: /src/qemu/target-cris/translate_v10.c: In function 'dec10_prep_move_m': /src/qemu/target-cris/translate_v10.c:111:22: error: variable 'rd' set but not used [-Werror=unused-but-set-variable] Fix by deleting rd, adjust the only user. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-10-13Delete write only variablesBlue Swirl
Compiling with GCC 4.6.0 20100925 produced warnings like: /src/qemu/net/tap-win32.c: In function 'tap_win32_open': /src/qemu/net/tap-win32.c:582:12: error: variable 'hThread' set but not used [-Werror=unused-but-set-variable] Fix by removing the unused variables. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-10-13ppc: remove video.xBlue Swirl
Only Mac-on-Linux stuff used video.x, OpenBIOS does not need it. Remove video.x MoL hacks. Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-10-13lsi53c895a: avoid a write only variableBlue Swirl
Compiling with GCC 4.6.0 20100925 produced a warning: /src/qemu/hw/lsi53c895a.c: In function 'lsi_do_msgout': /src/qemu/hw/lsi53c895a.c:848:9: error: variable 'len' set but not used [-Werror=unused-but-set-variable] Fix by adding a dummy cast so that the variable is not unused for non-debug case. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-10-13eepro100: initialize a variable in all casesBlue Swirl
Compiling with GCC 4.6.0 20100925 produced warnings: /src/qemu/hw/eepro100.c: In function 'eepro100_read4': /src/qemu/hw/eepro100.c:1351:14: error: 'val' may be used uninitialized in this function [-Werror=uninitialized] /src/qemu/hw/eepro100.c: In function 'eepro100_read2': /src/qemu/hw/eepro100.c:1328:14: error: 'val' may be used uninitialized in this function [-Werror=uninitialized] /src/qemu/hw/eepro100.c: In function 'eepro100_read1': /src/qemu/hw/eepro100.c:1285:13: error: 'val' may be used uninitialized in this function [-Werror=uninitialized] Fix by initializing 'val' at start. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-10-13cirrus: avoid write only variablesBlue Swirl
Compiling with GCC 4.6.0 20100925 produced a lot of warnings like: In file included from /src/qemu/hw/cirrus_vga_rop.h:174:0, from /src/qemu/hw/cirrus_vga.c:284: /src/qemu/hw/cirrus_vga_rop2.h: In function 'cirrus_patternfill_0_8': /src/qemu/hw/cirrus_vga_rop2.h:48:18: error: variable 'col' set but not used [-Werror=unused-but-set-variable] /src/qemu/hw/cirrus_vga_rop2.h: In function 'cirrus_colorexpand_transp_0_8': /src/qemu/hw/cirrus_vga_rop2.h:104:18: error: variable 'col' set but not used [-Werror=unused-but-set-variable] Fix the warnings by introducing an inline function, which avoids exposing write-only variables. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-10-13block: avoid a write only variableBlue Swirl
Compiling with GCC 4.6.0 20100925 produced a warning: /src/qemu/block/qcow2-refcount.c: In function 'update_refcount': /src/qemu/block/qcow2-refcount.c:552:13: error: variable 'dummy' set but not used [-Werror=unused-but-set-variable] Fix by adding a dummy cast so that the result is not unused. Acked-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-10-11Merge remote branch 'mst/for_anthony' into stagingAnthony Liguori
2010-10-09trace: remove timestamp files when cleaning upBlue Swirl
'make clean' did not remove trace.[ch]-timestamp files, only trace.[ch]. But 'make' did not know how to make trace.[ch] files if the timestamp files were present. Fix by removing the timestamp files along with trace.[ch]. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-10-09configure: Send error message from spice check to /dev/nullStefan Weil
pkg-config is not always available (e.g. on win32 hosts), but we don't want to see the 'command not found' error message. Redirect stdout and stderr to /dev/null. v2: * Removed changes which should not have been here. Cc: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Stefan Weil <weil@mail.berlios.de> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-10-09win32: Set unbuffered stdoutStefan Weil
Win32 does not support line-buffering, but it allows unbuffered output. Unbuffered output is a good approximation. For typical output statements which usually end with '\n', it's even identical. Buffered output is unusable for program traces because of its large delay. Cc: Blue Swirl <blauwirbel@gmail.com> Signed-off-by: Stefan Weil <weil@mail.berlios.de> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-10-09.gitignore: Ignore *-timestampStefan Hajnoczi
Timestamp files were recently added to reduce make churn on source files that use tracing. The timestamp files should never be committed and should not be visible in git status. Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-10-09acpi: Fix an infinite loop in acpi_table_addVincent Minet
Commit d729bb9a7700e364b1c5f9893d61f07a9e002bce has a typo, causing an infinite loop in acpi_table_add. Signed-off-by: Vincent Minet <vincent@vincent-minet.net> Acked-by: Jes Sorensen <Jes.Sorensen@redhat.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-10-09configure: Remove unneeded defines from checksStefan Weil
_GNU_SOURCE is already defined in QEMU_CFLAGS which is passed to gcc in shell function compile_prog. Removing the definition from several checks avoids compiler warnings (which are now written to config.log). Signed-off-by: Stefan Weil <weil@mail.berlios.de> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-10-09configure: include stddef.h for NULLScott Wood
This fixes an observed failure to detect madvise() on Linux. To avoid similar issues, all other tests that use NULL but don't already have stddef.h (or another header that is defined to provide NULL, such as stdio.h, unistd.h, or time.h) are also fixed. Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-10-09trace: Trace bdrv_aio_{readv,writev}Stefan Hajnoczi
Observing block layer aio readv/writev operations is useful for debugging image formats or understanding guest disk I/O patterns. Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-10-09trace: Use TP_PROTO() and TP_ARGS() for LTTng USTStefan Hajnoczi
The LTTng UserSpace Tracer formerly used TPPROTO() and TPARGS() instead of TP_PROTO() and TP_ARGS() like the kernel uses. This has been changed so QEMU needs to follow. I am not aware of a graceful way of making the transition but since no one complained that the UST build is broken, it should be fine to just switch over without compatibility for old UST headers. The newer UST headers are shipping in distro packages so it is realistic to make this change now. Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-10-09trace: Don't strip lines containing '#' arbitrarilyStefan Hajnoczi
Although comment lines must be skipped, the '#' character can occur in valid format strings. Be more careful when checking for comments. Leave comments at the end of the line where they will not interfere with other processing. Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>