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2010-04-18create empty_slot deviceArtyom Tarasenko
The empty_slot device emulates known to a bus but not connected devices. Signed-off-by: Artyom Tarasenko <atar4qemu@gmail.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-04-18Fix harmless if statements with empty body, spotted by clangBlue Swirl
These clang errors are harmless but worth fixing: CC libhw64/fdc.o /src/qemu/hw/fdc.c:998:74: error: if statement has empty body [-Wempty-body] FLOPPY_DPRINTF("Floppy digital input register: 0x%02x\n", retval); CC libhw64/cuda.o /src/qemu/hw/cuda.c:320:66: error: if statement has empty body [-Wempty-body] CUDA_DPRINTF("read: reg=0x%x val=%02x\n", (int)addr, val); Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-04-18tcg/ppc: Remove redundant comparison from brcond2malc
Signed-off-by: malc <av1474@comtv.ru>
2010-04-17Fix --enable-profiler compilation.Richard Henderson
There's a header file inclusion ordering problem between cpu-all.h and qemu-timer.h, such that cpu_get_real_ticks is not defined when we attempt to use it in profile_getclock. Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-04-17target-sparc: Free instruction temporaries.Richard Henderson
Rather than creating new temporaries for constants, use the ones created in disas_sparc_insn. Remember the temps created there so that they can be freed at the end of the function. Profile data collected by TCG while booting sparc-test kernel: -avg temps/TB 70.61 max=421 +avg temps/TB 62.75 max=66 Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-04-17target-sparc: Fix TARGET_{PHYS,VIRT}_ADDR_SPACE_BITS.Richard Henderson
The 32 and 64-bit definitions were swapped in the ifdef. Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-04-17Sparc: fix PC/NPC during FPU trapsBlue Swirl
All FPU instructions can trap, so save PC/NPC state before executing them. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-04-17tcg: Add missing static qualifiermalc
Build breaks otherwise when USE_LIVENESS_ANALYSIS is not defined. Signed-off-by: malc <av1474@comtv.ru>
2010-04-17tcg/ppc: Fix signed versions of brcond2malc
Thanks to: Alexander Graff, Thomas Gleixner and Andreas Faerber. Signed-off-by: malc <av1474@comtv.ru>
2010-04-17Fix format stringsArnaud Lacombe
This fix the following build failure: CC libdis-user/microblaze-dis.o cc1: warnings being treated as errors microblaze-dis.c: In function 'print_insn_microblaze': microblaze-dis.c:829: warning: format '%04x' expects type 'unsigned int', but argument 4 has type 'long unsigned int' microblaze-dis.c:962: warning: format '%04x' expects type 'unsigned int', but argument 4 has type 'long unsigned int' Reported-at: http://www.monstr.eu/wiki/doku.php?id=log:2010-04-13_12_10_00 Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2010-04-13Merge remote branch 'mst/for_anthony' into stagingAnthony Liguori
2010-04-14sparc: Fix compiler warning (fprintf format string)Stefan Weil
When argument checking is enabled, gcc throws this error: error: format not a string literal and no format arguments The patch rewrites the statement to satisfy the compiler. Signed-off-by: Stefan Weil <weil@mail.berlios.de> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-04-14sh4: Fix compiler warning (fprintf format string)Stefan Weil
When argument checking is enabled, gcc throws this error: error: format not a string literal and no format arguments The patch rewrites the statement to satisfy the compiler. Signed-off-by: Stefan Weil <weil@mail.berlios.de> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-04-14m68k: Fix compiler warning (fprintf format string)Stefan Weil
When argument checking is enabled, gcc throws this error: error: format not a string literal and no format arguments The patch rewrites the statement to satisfy the compiler. It also removes a type cast which is not needed. Signed-off-by: Stefan Weil <weil@mail.berlios.de> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-04-14arm: Fix compiler warning (fprintf format string)Stefan Weil
When argument checking is enabled, gcc throws this error: error: format not a string literal and no format arguments The patch rewrites the statement to satisfy the compiler. Signed-off-by: Stefan Weil <weil@mail.berlios.de> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-04-14tcp/mips: Change TCG_AREG0 (fp -> s0)Stefan Weil
Register fp (frame pointer) is a bad choice for compilations without optimisation, because the compiler makes heavy use of this register (so the resulting code crashes). Register s0 had been used for TCG_AREG1 in earlier releases, but was no longer used and is now free for TCG_AREG0. The resulting code works for compilations without optimisation (tested with qemu mips in qemu mips on x86 host). Signed-off-by: Stefan Weil <weil@mail.berlios.de> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-04-14Use correct cflags for kvm-kmod when cross compilingStefan Weil
Using $pkgconfig instead of pkg-config will use ${cross_prefix}pkg-config if that is available. This fix is needed for cross compilations without modified PATH. Without the fix, PATH must be modified to find the cross pkg-config before the native pkg-config. Signed-off-by: Stefan Weil <weil@mail.berlios.de> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-04-14linux-user: do_shmdt(): Fix page_set_flags's 2nd arg.takasi-y@ops.dti.ne.jp
2nd arg of page_set_flags() should be start+size, but size. Signed-off-by: Takashi YOSHII <takasi-y@ops.dti.ne.jp> Acked-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-04-14vhost.c: include <linux/vhost.h> lastMarcelo Tosatti
So the userspace headers define KERNEL_STRICT_NAMES and there's no conflict on type definition for older kernels. Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-04-13vhost-net: disable mergeable buffersMichael S. Tsirkin
vhost in current kernels doesn't support mergeable buffers. Disable this feature if vhost is enabled, until such support is implemented. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-04-13vhost: fix features ackDavid L Stevens
vhost driver in qemu didn't ack features, and this happens to work because we don't really require any features. However, it's better not to rely on this. This patch passes features to vhost as guest acks them. Signed-off-by: David L Stevens <dlstevens@us.ibm.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-04-13sh_pci: fix memory and I/O accessAurelien Jarno
Since commit 8da3ff180974732fc4272cb4433fef85c1822961 ("MMIO callback interface changes"), the addresses passed to the I/O functions are an offset to the start of the area. As a consequence, there is no need to correct the address using the value of IOBR. This make possible the use of the default MMIO functions. Moreover the addresses are now remaped when the value if IOBR change. The memory area corresponds to the devices behing the PCI bus, it should not be mapped by the PCI controller. Remove the corresponding code. Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-04-13r2d: always enable IDE and flashAurelien Jarno
IDE and flash are part of the R2D board, and can't be removed. Emulate them even if there is no hard-drive plugged to the IDE or if the flash content is empty.
2010-04-12Fix build when configured with --enable-io-threadBlue Swirl
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-04-11Cleanup dead codeJun Koi
This patch removes some dead code in exec.c Signed-off-by: Jun Koi <junkoi2004@gmail.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-04-11Sparc: fix exceptions in delay slotBlue Swirl
Fix a case where an exception happens with the instruction in the delay slot. Recovery of branch condition in the exception handling code was not converted to TCG. Because the condition was bogus, wrong NPC could be selected from the two candidates. A nice bug report with a test case can be found in: https://bugs.launchpad.net/qemu/+bug/551814 Fix based on patch by Fabrice Bellard. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-04-11hw/r2d: add initrd supportAurelien Jarno
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-04-11vhost.c: include <linux/vhost.h> lastMarcelo Tosatti
So the userspace headers define KERNEL_STRICT_NAMES and there's no conflict on type definition for older kernels. Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2010-04-11vhost-net: disable mergeable buffersMichael S. Tsirkin
vhost in current kernels doesn't support mergeable buffers. Disable this feature if vhost is enabled, until such support is implemented. Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2010-04-11vhost: fix features ackDavid L Stevens
vhost driver in qemu didn't ack features, and this happens to work because we don't really require any features. However, it's better not to rely on this. This patch passes features to vhost as guest acks them. Signed-off-by: David L Stevens <dlstevens@us.ibm.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2010-04-11eepro100: convert to new capability APIMichael S. Tsirkin
Using new pci_add_capability_at_offset makes eepro100 code cleaner. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Acked-by: Stefan Weil <weil@mail.berlios.de>
2010-04-11pci: add API to add capability at a known offsetMichael S. Tsirkin
Unlike virtio, device emulations need to add pci capabilities at known offsets to match real hardware. Make this possible by adding an appropriate API. Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2010-04-11hw/r2d: add flash memoryAurelien Jarno
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-04-10Revert "Avoid page_set_flags() assert in qemu-user host page protection code"Aurelien Jarno
This reverts commit 01c0bef1625d8e5d6d5c6abaf413214d667615ad. (breaks build on 32-bit hosts)
2010-04-10tcg/README: improve description of bswap*Aurelien Jarno
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-04-10target-alpha: Use non-inverted arguments to gen_{f}cmov.Richard Henderson
The inverted conditions as argument to the function looks wrong at a glance inside translate_one. Since we have an easy function to produce the inversion now, use it. Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-04-10target-alpha: Use setcond for int comparisons.Richard Henderson
Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-04-10target-alpha: Implement cvtql inline.Richard Henderson
It's a simple mask and shift sequence. Also, fix a typo in the actual masks used. Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-04-10target-alpha: Add flags markups to helpers.h.Richard Henderson
Almost all alpha helpers are at least TCG_CALL_CONST and a fair few are also TCG_CALL_PURE. Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-04-10raw-posix: don't assign bs->read_onlyChristoph Hellwig
bdrv_open already takes care of this for us. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-04-10boot: remove unused boot_devices_bitmap variableEduardo Habkost
In addition to removing the variable, this also renames the parse_bootdevices() function to validate_bootdevices(), as we don't need its return value anymore. Signed-off-by: Eduardo Habkost <ehabkost@redhat.com> Acked-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-04-10net: remove broken net_set_boot_mask() boot device validationEduardo Habkost
There are many problems with net_set_boot_mask(): 1) It is broken when using the device model instead of "-net nic". Example: $ qemu-system-x86_64 -device rtl8139,vlan=0,id=net0,mac=52:54:00:82:41:fd,bus=pci.0,addr=0x4 -net user,vlan=0,name=hostnet0 -vnc 0.0.0.0:0 -boot n Cannot boot from non-existent NIC $ 2) The mask was previously used to set which boot ROMs were supposed to be loaded, but this was changed long time ago. Now all ROM images are loaded, and SeaBIOS takes care of jumping to the right boot entry point depending on the boot settings. 3) Interpretation and validation of the boot parameter letters is done on the machine type code. Examples: PC accepts only a,b,c,d,n as valid boot device letters. mac99 accepts only a,b,c,d,e,f. As a side-effect of this change, qemu-kvm won't abort anymore if using "-boot n" on a machine with no network devices. Checking if the requested boot device is valid is now a task for the BIOS or the machine-type code. Signed-off-by: Eduardo Habkost <ehabkost@redhat.com> Acked-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-04-10net: remove NICInfo.bootable fieldEduardo Habkost
It is just set by net_set_boot_mask() and never used. The logic for rom loading changed a lot since this field was introduced. It is not needed anymore. Signed-off-by: Eduardo Habkost <ehabkost@redhat.com> Acked-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-04-10qcow2: Remove request from in-flight list after errorKevin Wolf
If we complete a request with a failure we need to remove it from the list of requests that are in flight. If we don't do it, the next time the same AIOCB is used for a cluster allocation it will create a loop in the list and qemu will hang in an endless loop. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-04-10qcow2: Don't ignore immediate read/write failuresKevin Wolf
Returning -EIO is far from optimal, but at least it's an error code. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-04-10block: Fix multiwrite memory leak in error caseKevin Wolf
Previously multiwrite_user_cb was never called if a request in the multiwrite batch failed right away because it did set mcb->error immediately. Make it look more like a normal callback to fix this. Reported-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-04-10block: Fix error code in multiwrite for immediate failuresKevin Wolf
Signed-off-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-04-10block: Fix multiwrite error handlingKevin Wolf
When two requests of the same multiwrite batch fail, the callback of all requests in that batch were called twice. This could have any kind of nasty effects, in my case it lead to use after free and eventually a segfault. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-04-09Implement virtio resetAlexander Graf
The guest may issue a RESET command for virtio. So far we didn't bother to implement it, but with my new bootloader we actually need it for Linux to get back to a safe state. Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-04-09Always notify consumers of char devices if they're openAlexander Graf
When using virtio-console on s390, the input doesn't work. The root of the problem is rather simple. What happens is the following: 1) create character device for stdio 2) char device is done creating, sends OPENED event 3) virtio-console adds handlers 4) no event comes because the char device is open already 5) virtio-console doesn't accept input because it didn't receive an OPENED event To make that sure virtio-console gets notified that the character device is open even when it's been open from the beginning, this patch introduces a variable that keeps track of the opened state. If the device is open when the event handlers get installed, we just notify the handler. This fixes input with virtio-console on s390. Signed-off-by: Alexander Graf <agraf@suse.de> Acked-by: Amit Shah <amit.shah@redhat.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
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