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2012-09-19nbd: track clients into NBDExportPaolo Bonzini
Track the NBDClients of each NBDExport, and use it to implement nbd_export_close. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2012-09-19nbd: add reference counting to NBDExportPaolo Bonzini
We will use a similar two-phase destruction for NBDExport, so we need each NBDClient to add a reference to NBDExport. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2012-09-19nbd: do not leak nbd_trip coroutines when a connection is torn downPaolo Bonzini
Because nbd_client_close removes the I/O handlers for the client socket, there is no way that any suspended coroutines are restarted. This will be a problem with the QEMU embedded NBD server, because we will have a QMP command to forcibly close all connections with the clients. Instead, we can exploit the reference counting of NBDClients; shutdown the client socket, which will make it readable and writeable. Also call the close callback, which will release the user's reference. The coroutines then will fail and exit cleanly, and release all remaining references, until the last refcount finally triggers the closure of the client. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2012-09-19nbd: make refcount interface publicPaolo Bonzini
After the next patch, the close callback will have to release its reference. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2012-09-19nbd: do not close BlockDriverState in nbd_export_closePaolo Bonzini
This is not desirable when embedding the NBD server inside QEMU. Move the bdrv_close to qemu-nbd. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2012-09-19nbd: pass NBDClient to nbd_send_negotiatePaolo Bonzini
We will need the NBDClient in nbd_send_negotiate to store the export requested by the client. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2012-09-18nbd: add more constantsPaolo Bonzini
Avoid magic numbers and magic size computations; hide them behind constants. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2012-09-15Remove unused CONFIG_TCG_PASS_AREG0 and dead codeBlue Swirl
Now that CONFIG_TCG_PASS_AREG0 is enabled for all targets, remove dead code and support for !CONFIG_TCG_PASS_AREG0 case. Remove dyngen-exec.h and all references to it. Although included by hw/spapr_hcall.c, it does not seem to use it. Remove unused HELPER_CFLAGS. Signed-off-by: Blue Swirl <blauwirbel@gmail.com> Reviewed-by: Richard Henderson <rth@twiddle.net>
2012-09-15target-mips: switch to AREG0 free modeBlue Swirl
Add an explicit CPUState parameter instead of relying on AREG0 and switch to AREG0 free mode. Signed-off-by: Blue Swirl <blauwirbel@gmail.com> Acked-by: Aurelien Jarno <aurelien@aurel32.net>
2012-09-15target-sh4: switch to AREG0 free modeBlue Swirl
Add an explicit CPUState parameter instead of relying on AREG0 and switch to AREG0 free mode. Acked-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-09-15target-cris: Switch to AREG0 free modeAurelien Jarno
Add an explicit CPUCRISState parameter instead of relying on AREG0, and use cpu_ld* in translation and interrupt handling. Remove AREG0 swapping in tlb_fill(). Switch to AREG0 free mode Signed-off-by: Blue Swirl <blauwirbel@gmail.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2012-09-15target-cris: Avoid AREG0 for helpersAurelien Jarno
Add an explicit CPUCRISState parameter instead of relying on AREG0. Signed-off-by: Blue Swirl <blauwirbel@gmail.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2012-09-15target-microblaze: switch to AREG0 free modeBlue Swirl
Add an explicit CPUState parameter instead of relying on AREG0 and switch to AREG0 free mode. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-09-15target-arm: final conversion to AREG0 free modeBlue Swirl
Convert code load functions and switch to AREG0 free mode. Signed-off-by: Blue Swirl <blauwirbel@gmail.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
2012-09-15target-arm: convert remaining helpersBlue Swirl
Convert remaining helpers to AREG0 free mode: add an explicit CPUState parameter instead of relying on AREG0. Signed-off-by: Blue Swirl <blauwirbel@gmail.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
2012-09-15target-arm: convert void helpersBlue Swirl
Add an explicit CPUState parameter instead of relying on AREG0. For easier review, convert only op helpers which don't return any value. Signed-off-by: Blue Swirl <blauwirbel@gmail.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
2012-09-15target-unicore32: switch to AREG0 free modeBlue Swirl
Add an explicit CPUState parameter instead of relying on AREG0 and switch to AREG0 free mode. Tested-by: Guan Xuetao <gxt@mprc.pku.edu.cn> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-09-15target-m68k: avoid using cpu_single_envBlue Swirl
Pass around CPUState instead of using global cpu_single_env. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-09-15target-m68k: switch to AREG0 free modeBlue Swirl
Add an explicit CPUState parameter instead of relying on AREG0 and switch to AREG0 free mode. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-09-15target-lm32: switch to AREG0 free modeBlue Swirl
Add an explicit CPUState parameter instead of relying on AREG0 and switch to AREG0 free mode. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-09-15target-s390x: avoid cpu_single_envBlue Swirl
Pass around CPUState instead of using global cpu_single_env. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-09-15configure: properly check if -lrt and -lm is neededNatanael Copa
Fixes build against uClibc. uClibc provides 2 versions of clock_gettime(), one with realtime support and one without (this is so you can avoid linking in -lrt unless actually needed). This means that the clock_gettime() don't need -lrt. We still need it for timer_create() so we check for this function in addition. We also need check if -lm is needed for isnan(). Both -lm and -lrt are needed for libs_qga. Signed-off-by: Natanael Copa <ncopa@alpinelinux.org> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-09-15tcg: Fix MAX_OPC_PARAM_IARGSStefan Weil
DEF_HELPER_FLAGS_5 was added some time ago without adjusting MAX_OPC_PARAM_IARGS. Fixing the definition becomes more important as QEMU is using an increasing number of helper functions called with 5 arguments. Add also a comment to avoid future problems when DEF_HELPER_FLAGS_6 will be added. Signed-off-by: Stefan Weil <sw@weilnetz.de> Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-09-11Merge branch 'usb.64' of git://git.kraxel.org/qemuAurelien Jarno
* 'usb.64' of git://git.kraxel.org/qemu: (54 commits) xhci: allow bytewise capability register reads xhci: kill xhci_mem_{read,write} dispatcher functions xhci: support multiple interrupters xhci: pick target interrupter xhci: prepare xhci_runtime_{read,write} for multiple interrupters xhci: add XHCIInterrupter xhci: move register update into xhci_intr_raise xhci: add msix support xhci: rework interrupt handling xhci: fix & cleanup msi. usb-storage: usb3 support usb3: bos decriptor usb3: superspeed endpoint companion usb3: superspeed descriptors xhci: update port handling xhci: update register layout xhci: fix runtime write tracepoint xhci: add trace_usb_xhci_ep_set_dequeue xhci: trace cc codes in cleartext xhci: iso xfer support ...
2012-09-11tcg/optimize: fix if/else/break coding styleAurelien Jarno
optimizer.c contains some cases were the break is appearing in both the if and the else parts. Fix that by moving it to the outer part. Also move some common code there. Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2012-09-11tcg/optimize: add constant folding for brcondAurelien Jarno
Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2012-09-11tcg/optimize: add constant folding for setcondAurelien Jarno
Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2012-09-11tcg/optimize: swap brcond/setcond arguments when possibleAurelien Jarno
brcond and setcond ops are not commutative, but it's easy to compute the new condition after swapping the arguments. Try to always put the constant argument in second position like for commutative ops, to help backends to generate better code. Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2012-09-11tcg/optimize: simplify shift/rot r, 0, a => movi r, 0 casesAurelien Jarno
shift/rot r, 0, a is equivalent to movi r, 0. Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2012-09-11tcg/optimize: simplify and r, a, 0 casesAurelien Jarno
and r, a, 0 is equivalent to a movi r, 0. Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2012-09-11tcg/optimize: simplify or/xor r, a, 0 casesAurelien Jarno
or/xor r, a, 0 is equivalent to a mov r, a. Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2012-09-11tcg/optimize: split expression simplificationAurelien Jarno
Split expression simplification in multiple parts so that a given op can appear multiple times. This patch should not change anything. Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2012-09-11tcg: improve profilerAurelien Jarno
Now that there are two passes of optimization (optimize.c, liveness) there is no point of outputing the statistics of the liveness part only. Update the code to take into account both optimizations. Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2012-09-11xhci: allow bytewise capability register readsGerd Hoffmann
Some guests need this according to Alejandro Martinez Ruiz <alex@securiforest.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-09-11xhci: kill xhci_mem_{read,write} dispatcher functionsGerd Hoffmann
... and register subregions instead, so we offload the dispatching to the the memory subsystem which is designed to handle it. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-09-11xhci: support multiple interruptersGerd Hoffmann
Everything is in place, flip the big switch now and enable support for multiple interrupters. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-09-11xhci: pick target interrupterGerd Hoffmann
Pick the correct interrupter when queuing an event. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-09-11xhci: prepare xhci_runtime_{read,write} for multiple interruptersGerd Hoffmann
Prepare xhci runtime register access function for multiple interrupters. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-09-11xhci: add XHCIInterrupterGerd Hoffmann
Move all state belonging to the (single) interrupter into a separate struct. First step in adding support for multiple interrupters. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-09-11xhci: move register update into xhci_intr_raiseGerd Hoffmann
Now that we have a separate function to raise an IRQ we can move some comon code into the function. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-09-11xhci: add msix supportGerd Hoffmann
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-09-11xhci: rework interrupt handlingGerd Hoffmann
Split xhci_irq_update into a function which handles intx updates (including lowering the irq line once the guests acks the interrupt) and one which is used for raising an irq only. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-09-11xhci: fix & cleanup msi.Gerd Hoffmann
Drop custom write_config function which isn't needed any more. Make the msi property a bit property so it accepts 'on' & 'off'. Enable MSI by default. TODO: add compat property to disable on old machine types. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-09-11usb-storage: usb3 supportGerd Hoffmann
Add usb3 descriptors to usb-storage, so it shows up as superspeed device when connected to xhci. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-09-11usb3: bos decriptorGerd Hoffmann
Add support for creating BOS descriptor and device cappability descriptors. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-09-11usb3: superspeed endpoint companionGerd Hoffmann
Add support for building superspeed endpoint companion descriptors, create them for superspeed usb devices. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-09-11usb3: superspeed descriptorsGerd Hoffmann
Add superspeed descriptor entry to USBDesc, advertise superspeed support when present. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-09-11xhci: update port handlingGerd Hoffmann
This patch changes the way xhci ports are linked to USBPorts. The fixed 1:1 relationship between xhci ports and USBPorts is gone. Now each USBPort represents a physical plug which has usually two xhci ports assigned: one usb2 and ond usb3 port. usb devices show up at one or the other, depending on whenever they support superspeed or not. This patch also makes the number of usb2 and usb3 ports runtime configurable by adding 'p2' and 'p3' properties. It is allowed to have different numbers of usb2 and usb3 ports. Specifying p2=4,p3=2 will give you an xhci adapter which supports all speeds on physical ports 1+2 and usb2 only on ports 3+4.
2012-09-11xhci: update register layoutGerd Hoffmann
Change the register layout to be a bit more sparse and also not depend on the number of ports. Useful when for making the number of ports runtime-configurable.
2012-09-11xhci: fix runtime write tracepointGerd Hoffmann
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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