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2012-04-15acpi_piix4: Re-define PCI hotplug eject register readAlex Williamson2-5/+14
The PCI hotplug eject register has always returned 0, so let's redefine it as a hotplug feature register. The existing model of using separate up & down read-only registers and an eject via write to this register becomes the base implementation. As we make use of new interfaces we'll set bits here to allow the BIOS and AML implementation to optimize for the platform implementation. Signed-off-by: Alex Williamson <alex.williamson@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2012-04-15acpi_piix4: Remove PCI_RMV_BASE write codeAlex Williamson2-7/+1
Clarify this register as read-only and remove write code. No change in existing behavior. Signed-off-by: Alex Williamson <alex.williamson@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2012-04-15acpi_piix4: Fix PCI hotplug raceAlex Williamson1-21/+53
As Michael Tsirkin demonstrated, current PCI hotplug is vulnerable to a few races. The first is a race with other hotplug operations because we clear the up & down registers at each event. If a new event comes before the last is processed, up/down is cleared and the event is lost. To fix this for the down register, we create a life cycle for the event request that starts with the hot unplug request in piix4_device_hotplug() and ends when the device is ejected. This allows us to mask and clear individual bits, preserving them against races. For the up register, we have no clear end point for when the event is finished. We could modify the BIOS to acknowledge the bit and clear it, but this creates BIOS compatibiliy issues without offering a complete solution. Instead we note that gratuitous ACPI device checks are not harmful, which allows us to issue a device check for every slot. We know which slots are present and we know which slots are hotpluggable, so we can easily reduce this to a more manageable set for the guest. The other race Michael noted was that an unplug request followed by reset may also lose the eject notification, which may also result in the eject request being lost which a subsequent add or remove. Once we're in reset, the device is unused and we can flush the queue of device removals ourselves. Previously if a device_del was issued to a guest without ACPI PCI hotplug support, it was necessary to shutdown the guest to recover the device. With this, a guest reboot is sufficient. Signed-off-by: Alex Williamson <alex.williamson@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2012-04-15acpi_piix4: Disallow write to up/down PCI hotplug registersAlex Williamson2-32/+16
The write side of these registers is never used and actually can't be used as defined because any read/modify/write sequence from the guest potentially races with qemu. Drop the write support and define these as read-only registers. Signed-off-by: Alex Williamson <alex.williamson@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2012-04-15pcspk: initialize PC speaker if compiled inHervé Poussineau1-1/+1
PC speaker has been moved to target-independant code in 71093711589dafcb920dc3bc9bb811eaf8b14101, so do not depend of target to include it or not. Cc: malc <av1474@comtv.ru> Cc: Blue Swirl <blauwirbel@gmail.com> Signed-off-by: Herv? Poussineau <hpoussin@reactos.org> Signed-off-by: malc <av1474@comtv.ru>
2012-04-14tests: remove .SECONDARY special targetPaolo Bonzini1-2/+0
The special target should not be needed anymore, and caused (perhaps due to a Make bug) a failure with "make -j2". In any case, the main makefile is a better place for such special targets rather than an included makefile. Reported-by: Luiz Capitulino <lcapitulino@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Tested-by: Luiz Capitulino <lcapitulino@redhat.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-04-14target-xtensa: add test for IBREAK invalidationMax Filippov1-0/+34
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-04-14target-xtensa: add tests for LBEG/LEND invalidationMax Filippov1-0/+50
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-04-14target-xtensa: fix tb invalidation for IBREAK and LOOPMax Filippov2-11/+20
Instruction breakpoint/zero overhead loop handling code is built into TBs pointed to by IBREAKA/LEND SRs. When these or related SRs get changed TBs at virtual addresses corresponding to their old and their new values must be invalidated. Virtual address range is passed to the tb_invalidate_phys_page_range, which is incorrect in system emulation mode. To fix it use guest TLB/MMU to translate virtual address to physical address. However the guest may not have virtual-to-physical mapping at the moment of IBREAKA/LEND change, thus this fix is not 100% accurate. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-04-14exec: provide tb_invalidate_phys_addr functionMax Filippov2-3/+7
Allow TB invalidation by its physical address, extract implementation from the breakpoint_invalidate function. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-04-14Use uintptr_t for various op related functionsBlue Swirl22-113/+89
Use uintptr_t instead of void * or unsigned long in several op related functions, env->mem_io_pc and GETPC() macro. Reviewed-by: Stefan Weil <sw@weilnetz.de> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-04-14coroutine-gthread.c: Avoid threading APIs deprecated in GLib 2.31Peter Maydell1-9/+87
The GLib threading APIs were revamped in GLib 2.31 and a number of the old interfaces were deprecated, which means they provoke compilation warnings (errors if -Werror) now. Add support for the new interfaces while retaining the old ones so we can still compile on older versions of GLib too. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-04-14Merge branch 'xtensa' of git://jcmvbkbc.spb.ru/dumb/qemu-xtensaBlue Swirl11-20/+201
* 'xtensa' of git://jcmvbkbc.spb.ru/dumb/qemu-xtensa: target-xtensa: Start QOM'ifying CPU init target-xtensa: QOM'ify CPU reset target-xtensa: QOM'ify CPU target-xtensa: improve unit tests debugging target-xtensa: Move helpers.h to helper.h
2012-04-14Merge branch 'arm-devs.for-upstream' of ↵Blue Swirl13-169/+331
git://git.linaro.org/people/pmaydell/qemu-arm * 'arm-devs.for-upstream' of git://git.linaro.org/people/pmaydell/qemu-arm: hw/arm_gic: Remove stray hardcoded tab hw/arm_gic: gic_set_pending_private() is NVIC only hw/arm_gic: Use NVIC instead of LEGACY_INCLUDED_GIC define hw/arm_gic: Make gic_reset a sysbus reset function hw/arm11mpcore: Convert to using sysbus GIC device hw/exynos4210_gic: Convert to using sysbus GIC hw/realview_gic: switch to sysbus GIC hw/a9mpcore: Switch to using sysbus GIC hw/a15mpcore: switch to using sysbus GIC hw/arm_gic: Make the GIC its own sysbus device hw/arm_gic: Expose PPI inputs as gpio inputs hw/arm_gic: Move gic_get_current_cpu into arm_gic.c hw/arm_gic: Move NCPU definition to arm_gic.c hw/exynos4210_combiner.c: Drop excessive read/write access check. ARM: Exynos4210: Drop gic_cpu_write() after initialization. Fix bit test in Exynos4210 UART emulation to use & instead of &&
2012-04-14target-xtensa: Start QOM'ifying CPU initAndreas Färber2-1/+9
Move XtensaConfig-independent code from cpu_xtensa_init() into a QOM initfn, as a start. Signed-off-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2012-04-14target-xtensa: QOM'ify CPU resetAndreas Färber3-14/+14
Move code from cpu_state_reset() into QOM xtensa_cpu_reset(). To avoid moving reset_mmu() and dependencies, make it non-static. Signed-off-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2012-04-14target-xtensa: QOM'ify CPUAndreas Färber5-1/+154
Embed CPUXtensaState as first member of XtensaCPU. Let CPUClass::reset() call cpu_state_reset() for now. Signed-off-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2012-04-14target-xtensa: improve unit tests debuggingMax Filippov2-0/+20
- add testcase announcement; - add global symbols for individual tests; - add host-debug-* makefile target. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2012-04-14target-xtensa: Move helpers.h to helper.hLluís Vilanova4-5/+5
Provides a file naming scheme consistent with other targets. Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu> Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2012-04-13xen: introduce an event channel for buffered io event notificationsStefano Stabellini1-6/+39
Use the newly introduced HVM_PARAM_BUFIOREQ_EVTCHN to receive notifications for buffered io events. After the first notification is received leave the event channel masked and setup a timer to process the rest of the batch. Once we have completed processing the batch, unmask the event channel and delete the timer. Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
2012-04-13xen-mapcache: don't unmap locked entry during mapcache invalidationJulien Grall1-0/+3
When an IOREQ_TYPE_INVALIDATE is sent to QEMU, it invalidates all entry of the map cache even if it's locked. QEMU is not able to know that entry was invalidated, so when an IO access is requested a segfault occured. Signed-off-by: Julien Grall <julien.grall@citrix.com> Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
2012-04-13Xen, mapcache: Fix the compute of the size of bucket.Anthony PERARD1-5/+7
Because the size of a mapping is wrong when there is an offset and a size >= bucket_size. Signed-off-by: Anthony PERARD <anthony.perard@citrix.com> Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
2012-04-13xen: handle backend deletion from xenstoreStefano Stabellini2-8/+13
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
2012-04-13Xen: Add xen-apic support and hook it up.Wei Liu3-1/+99
Signed-off-by: Wei Liu <wei.liu2@citrix.com> Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Acked-by: Paolo Bonzini <pbonzini@redhat.com>
2012-04-13Xen: basic HVM MSI injection support.Wei Liu3-0/+10
Signed-off-by: Wei Liu <wei.liu2@citrix.com> Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
2012-04-13Merge remote-tracking branch 'stefanha/trivial-patches' into stagingAnthony Liguori4-8/+46
* stefanha/trivial-patches: configure: Insist on a Python 2, not Python 3 bsd-user: fix compile failure ps2: avoid repeated header file includes make: Always set LC_ALL=C for makeinfo configure: Fix wrong preprocessor statement configure: Remove useless uses of ARCH_CFLAGS
2012-04-13Merge remote-tracking branch 'qemu-kvm/uq/master' into stagingAnthony Liguori10-30/+171
* qemu-kvm/uq/master: kvmclock: guest stop notification kvm: update linux headers kvm: set gsi_bits and max_gsi correctly kvm: Drop unused kvm_pit_in_kernel kvm: allow arbitrarily sized mmio ioeventfd kvm: Drop redundant kvm_enabled from cpu_thread_is_idle kvm: add flightrecorder script
2012-04-13Merge remote-tracking branch 'afaerber/qom-cpu-lm32.v3' into stagingAnthony Liguori5-13/+158
* afaerber/qom-cpu-lm32.v3: target-lm32: QOM'ify CPU reset target-lm32: QOM'ify CPU init target-lm32: QOM'ify CPU
2012-04-13hw/arm_gic: Remove stray hardcoded tabPeter Maydell1-1/+1
Remove the single instance of a hardcoded tab from hw/arm_gic.c. Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2012-04-13hw/arm_gic: gic_set_pending_private() is NVIC onlyPeter Maydell1-2/+3
The function gic_set_pending_private() is now used by the NVIC only (for the GIC we now set PPI interrupts via gpio lines and gic_set_irq()). So make it #ifdef NVIC and remove the 'attribute unused' annotation. Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2012-04-13hw/arm_gic: Use NVIC instead of LEGACY_INCLUDED_GIC definePeter Maydell2-4/+10
Now all the A profile cores have been switched to use the standalone sysbus GIC, the only remaining code which #includes arm_gic.c is the v7M NVIC. The coupling is much closer here so it's not so easily disentangled. For now, add a comment about how arm_gic.c is compiled, and assume that the NVIC always includes arm_gic.c and the non-NVIC GIC is always compiled standalone. Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2012-04-13hw/arm_gic: Make gic_reset a sysbus reset functionPeter Maydell2-2/+19
Make gic_reset a sysbus reset function, so we actually reset the GIC on system reset rather than only at init. For the NVIC this requires us also to implement reset of the SysTick. Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2012-04-13hw/arm11mpcore: Convert to using sysbus GIC devicePeter Maydell1-19/+30
Convert arm11mpcore to using the standalone sysbus GIC device. Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2012-04-13hw/exynos4210_gic: Convert to using sysbus GICPeter Maydell1-8/+24
Convert the Exynos GIC code to use the standalone sysbus GIC device. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Evgeny Voevodin <e.voevodin@samsung.com>
2012-04-13hw/realview_gic: switch to sysbus GICPeter Maydell1-12/+26
Switch the realview_gic device to the standalone sysbus GIC. Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2012-04-13hw/a9mpcore: Switch to using sysbus GICPeter Maydell1-25/+35
Switch the a9mpcore to using the sysbus GIC device rather than having the a9mp private memory region device subclass the GIC. Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2012-04-13hw/a15mpcore: switch to using sysbus GICPeter Maydell1-9/+26
Switch the a15mpcore private peripheral region to using the standalone sysbus GIC device. Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2012-04-13hw/arm_gic: Make the GIC its own sysbus devicePeter Maydell8-1/+58
Compile arm_gic.c as a standalone C file to produce a self contained sysbus GIC device. Support the legacy usage by #include of the .c file by making those users #define LEGACY_INCLUDED_GIC, so we can convert them one by one. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Evgeny Voevodin <e.voevodin@samsung.com>
2012-04-13hw/arm_gic: Expose PPI inputs as gpio inputsPeter Maydell1-9/+40
Expose the Private Peripheral Interrupt inputs as GPIO inputs. The layout of the GPIO array is thus: [0..N-1] SPIs [N..N+31] PPIs for CPU 0 [N+32..N+63] PPIs for CPU 1 ... Treating PPIs as being another kind of input line is in line with the GIC architecture specification, where they are clearly described that way. The 11MPCore TRM is a bit more ambiguous, but there is no practical difference between "set PPI X as pending" and "0->1 transition on a PPI input line configured as edge triggered", and PPIs are always edge triggered, so this change won't affect behaviour. Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2012-04-13hw/arm_gic: Move gic_get_current_cpu into arm_gic.cPeter Maydell7-48/+15
Move the gic_get_current_cpu() function into arm_gic.c. There are only two implementations: (1) "get the index of the currently executing CPU", used by all multicore GICs, and (2) "always 0", used by all GICs instantiated with a single CPU interface (the Realview board GIC and the v7M NVIC). So we can move this into the main GIC source file. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Evgeny Voevodin <e.voevodin@samsung.com>
2012-04-13hw/arm_gic: Move NCPU definition to arm_gic.cPeter Maydell7-26/+19
Move the NCPU definition to arm_gic.c: the maximum number of CPU interfaces is defined by the GIC architecture specification to be 8, so we don't need to have this #define in each of the sources files which currently includes arm_gic.c. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Evgeny Voevodin <e.voevodin@samsung.com>
2012-04-13hw/exynos4210_combiner.c: Drop excessive read/write access check.Evgeny Voevodin1-10/+0
Access to reserved area at offset higher than 0x3c is allowed in External Combiner. Samsung Galaxy Kernel implements this. So, drop excessive checks in read/write functions. Signed-off-by: Evgeny Voevodin <e.voevodin@samsung.com> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2012-04-13ARM: Exynos4210: Drop gic_cpu_write() after initialization.Evgeny Voevodin4-2/+34
Remove gic_cpu_write() call after initialization that was emulating functionality of earliest SOC bootloader which enables external GIC CPU1 interface. Instead introduce Exynos4210-specific secondary CPU bootloader, which enables both Internal and External GIC CPU1 interfaces. Signed-off-by: Evgeny Voevodin <e.voevodin@samsung.com> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2012-04-13Fix bit test in Exynos4210 UART emulation to use & instead of &&Daniel P. Berrange1-3/+3
* hw/exynos4210_uart.c: s/&&/&/ Signed-off-by: Daniel P. Berrange <berrange@redhat.com> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2012-04-13configure: Insist on a Python 2, not Python 3Peter Maydell1-0/+8
Our Python scripts require Python 2 and will fail on Python 3, eg: File "/home/petmay01/linaro/qemu-from-laptop/qemu/scripts/qapi-commands.py", line 378 except getopt.GetoptError, err: ^ SyntaxError: invalid syntax Add a check to configure that Python is not a Python 3, so we can fail with a comprehensible error rather than an obscure one. Reported-by: Boris Matti <swiftos@lavabit.com> Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2012-04-13bsd-user: fix compile failurePeter Maydell1-0/+1
bsd-user doesn't actually support reserving a memory area for the guest address space, but we need to at least define the reserved_va global so that cpu-all.h's RESERVED_VA macro will work correctly. This fixes a compilation error introduced in commit 39879bb which added a use of RESERVED_VA to h2g_valid(). Reported-by: Brad Smith <brad@comstyle.com> Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Stefan Weil <sw@weilnetz.de> Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2012-04-12kvmclock: guest stop notificationEric B Munson1-0/+16
Often when a guest is stopped from the qemu console, it will report spurious soft lockup warnings on resume. There are kernel patches being discussed that will give the host the ability to tell the guest that it is being stopped and should ignore the soft lockup warning that generates. This patch uses the qemu Notifier system to tell the guest it is about to be stopped. Signed-off-by: Eric B Munson <emunson@mgebm.net> Signed-off-by: Raghavendra K T <raghavendra.kt@linux.vnet.ibm.com> Reviewed-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2012-04-12kvm: update linux headersMarcelo Tosatti3-0/+12
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2012-04-12kvm: set gsi_bits and max_gsi correctlyJason Baron1-1/+1
The current kvm_init_irq_routing() doesn't set up the used_gsi_bitmap correctly, and as a consequence pins max_gsi to 32 when it really should be 1024. I ran into this limitation while testing pci passthrough, where I consistently got an -ENOSPC return from kvm_get_irq_route_gsi() called from assigned_dev_update_msix_mmio(). Signed-off-by: Jason Baron <jbaron@redhat.com> Acked-by: Alex Williamson <alex.williamson@redhat.com> Acked-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2012-04-12kvm: Drop unused kvm_pit_in_kernelJan Kiszka3-14/+0
This is now implied by kvm_irqchip_in_kernel. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
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