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2011-10-16i8259: Fix poll commandJan Kiszka1-1/+7
This was probably never used so far: According to the spec, polling means ack'ing the pending IRQ and setting its corresponding bit in isr. Moreover, we have to signal a pending IRQ via bit 7 of the returned value, and we must not return a spurious IRQ if none is pending. This implements the poll command without the help of pic_poll_read which is left untouched as pic_intack_read is still using it. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-10-16i8259: Switch to per-PIC IRQ updateJan Kiszka1-40/+21
This converts pic_update_irq to work against a single PIC instead of the complete cascade. Along this change, the required update after pic_set_irq1 is now moved into that function. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-10-16i8259: Clear ELCR on resetJan Kiszka1-5/+10
The ELCR is actually part of the chipset but we model it here for simplicity reasons. The PIIX3 clears the ELCR on reset, which was once broken by 4dbe19e181. Fix this by splitting up pic_init_reset from pic_reset and clearing the register in the latter. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-10-16i8259: Update IRQ state after resetJan Kiszka1-2/+1
MIPS and PPC users of the i8259 output signal expect us to report state updates also after reset. As no consumer (including the master PIC) can misinterpret the deassert as an activation event, it is safe to simply update the IRQ state after reset. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-10-16i8259: Reorder intack in pic_read_irqJan Kiszka1-4/+6
As we want to move the IRQ update to pic_intack, ordering matters: the slave ack must be executed before the master ack to avoid missing further pending slave IRQs. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-10-16i8259: Do not update IRQ output after spurious pic_poll_readJan Kiszka1-1/+0
If pic_poll_read finds no pending IRQ and return a spurious one instead, no PIC state is changed, thus we do not need to call pic_update_irq. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-10-16i8239: Introduce per-PIC output interruptJan Kiszka1-9/+12
As a first step towards more generic master-slave support, remove parent_irq in favor of a per-PIC output interrupt line. The slave's line is attached to IRQ2 of the master, but it remains unused for now. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-10-16i8259: Move pic_set_irq1 after pic_update_irqJan Kiszka1-26/+29
We are about to call the latter from the former. No functional changes. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-10-16i8259: Drop obsolete prototypesJan Kiszka1-2/+0
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-10-16i8259: Remove premature inline function attributesJan Kiszka1-3/+3
The compiler is smarter in choosing the right optimization. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-10-16pc: Fix and clean up PIC-to-APIC IRQ pathJan Kiszka4-12/+12
The master PIC is connected to the LINTIN0 of the APICs. As the APIC currently does not track the state of that line, we have to ask the PIC to reinject its IRQ after the CPU picked up an event from the APIC. This introduces pic_get_output to read the master PIC IRQ line state without changing it. The APIC uses this function to decide if a PIC IRQ should be reinjected on apic_update_irq. This reflects better how the real hardware works. The patch fixes some failures of the kvm unit tests apic and eventinj by allowing to enable the proper CPU IRQ deassertion when the guest masks some pending IRQs at PIC level. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-10-16pc: Convert GSIState::i8259_irq into arrayJan Kiszka2-2/+4
Will be required when we no longer let i8259_init allocate the PIC IRQs but convert that chips to qdev. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-10-16pc: Generalize ISA IRQs to GSIsJan Kiszka5-31/+42
The ISA bus IRQ range is 0..15. What isa_irq_handler and IsaIrqState are actually dealing with are the Global System Interrupts. Refactor the code to clarify this. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-10-16pc: Drop useless test from isa_irq_handlerJan Kiszka1-3/+2
IsaIrqState::ioapic is always non-NULL. Probably, the concrete qemu_irq was supposed to be tested, but that's already done by qemu_set_irq. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-10-16target-xtensa: add Avnet LX60/LX110/LX200 boardsMax Filippov4-0/+240
These boards carry similar hardware: SDRAM (48M for LX110, 64M for LX60, 96M for LX200), 16 Mbyte FLASH, FPGA, 10/100 Mbps Ethernet PHY and 16550 UART. FPGA may be loaded with almost any Tensilica processor. It is also used to implement Ethernet MAC, e.g. OpenCores 10/100 Mbps Ethernet MAC and LED/DIP switches access. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-10-16hw: add OpenCores 10/100 Mbps Ethernet controllerMax Filippov3-0/+743
This is OpenCores Ethernet MAC + subset of National Semiconductors DP83838C PHY. OpenCores Ethernet MAC project: http://opencores.org/project,ethmac Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-10-16target-xtensa: rename dc232b board to simMax Filippov3-15/+15
This is to get aligned with the linux name for this machine. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-10-16target-xtensa: add fsf coreMax Filippov3-0/+384
This is FSF big endian core implemented through linux overlay. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-10-16target-xtensa: add dc232b coreMax Filippov4-0/+713
This is Diamond 232L Standard Core Rev.B (LE), implemented through linux/gdb overlay. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-10-16target-xtensa: extract core configuration from overlayMax Filippov3-13/+554
Introduce overlay_tool.h that defines core configuration blocks from data available in the linux architecture variant overlay. Overlay data is automatically generated in the core configuration process by Tensilica tools and can be directly converted to qemu xtensa core description by overlay_tool.h Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-10-16target-xtensa: implement external interrupt mappingMax Filippov2-0/+15
Xtensa cores may have different mapping of external interrupt pins to internal IRQ numers. Implement API to acquire core IRQ by its external interrupt number. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-10-16target-xtensa: remove hand-written xtensa cores implementationsMax Filippov5-968/+2
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-10-16target-xtensa: increase xtensa options accuracyMax Filippov2-8/+12
- add separate options for each operation in the MISC_OP; - add an option for MULSH/MULUH; - put S32C1I under conditional store option. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-10-15target-xtensa: update qemu-doc.texiMax Filippov2-7/+88
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-10-15target-xtensa: add MAC16 unit testsMax Filippov2-0/+244
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-10-15target-xtensa: implement MAC16 optionMax Filippov2-1/+137
See ISA, 4.3.7 for the details. - add ACC and MR special registers; - implement MAC16 and all inner MAC* opcode groups. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-10-15target-xtensa: fix guest hang on masked CCOMPARE interruptMax Filippov4-16/+93
QEMU timer is used to post CCOMPARE interrupt when the core is halted. If that CCOMPARE interrupt is masked off then the timer must be rearmed in the callback, otherwise it will be rearmed next time the core goes to halt by the waiti instruction. Add test case into timer testsuite. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-10-15Drop obsolete nographic timerJan Kiszka1-13/+0
We flush coalesced MMIO in the device models now, and VNC - for which this was once introduced - is also fine without it as it has its own refresh timer. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-10-15Move graphic-related coalesced MMIO flushes to affected device modelsJan Kiszka3-2/+8
This is conceptually cleaner and will allow us to drop the nographic timer. Moreover, it will be mandatory to fully exploit future per-device coalesced MMIO rings. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-10-14Merge remote-tracking branch 'kwolf/for-anthony' into stagingAnthony Liguori12-633/+283
2011-10-14Merge remote-tracking branch 'stefanha/trivial-patches' into stagingAnthony Liguori7-32/+10
2011-10-14Merge remote-tracking branch 'kraxel/usb.28' into stagingAnthony Liguori9-84/+180
2011-10-14Merge remote-tracking branch 'qemu-kvm-tmp/memory/batch' into stagingAnthony Liguori37-394/+535
2011-10-14block: drop bdrv_has_async_rw()Stefan Hajnoczi1-6/+0
Commit cd74d83345e0e3b708330ab8c4cd9111bb82cda6 ("block: switch bdrv_read()/bdrv_write() to coroutines") removed the bdrv_has_async_rw() callers. This patch removes bdrv_has_async_rw() since it is no longer used. Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-10-14block: drop .bdrv_read()/.bdrv_write() emulationStefan Hajnoczi1-72/+3
There is no need to emulate .bdrv_read()/.bdrv_write() since these interfaces are only called if aio and coroutine interfaces are not present. All valid BlockDrivers must implement either sync, aio, or coroutine interfaces. Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-10-14block: use coroutine interface for raw formatStefan Hajnoczi1-24/+8
The raw format delegates all operations to bs->file (the protocol). Previously this block driver exposed both sync and aio interfaces. Since the block layer now works in terms of coroutines, expose the coroutine interfaces and drop the others. This avoids unnecessary emulation of sync and aio interfaces. Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-10-14raw-posix: remove bdrv_read()/bdrv_write()Stefan Hajnoczi1-277/+0
Block drivers only need to provide one of sync, aio, or coroutine interfaces. Since raw-posix.c provides aio interfaces, simply drop the synchronous interfaces since they can be emulated using aio and coroutines. Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-10-14block: drop emulation functions that use coroutinesStefan Hajnoczi1-54/+7
Block drivers that implement coroutine functions used to get sync and aio wrappers. This is no longer necessary since all request processing now happens in a coroutine. If a block driver implements the coroutine interface then none of the other interfaces will be invoked. Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-10-14block/qcow: Fix use of free() instead of g_free()Stefan Weil1-1/+1
cppcheck reported this error: qemu/block/qcow.c:599: error: Mismatching allocation and deallocation: cluster_data Signed-off-by: Stefan Weil <sw@weilnetz.de> Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2011-10-14sheepdog: correct spellingDong Xu Wang1-1/+1
Reviewed-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Dong Xu Wang <wdongxu@linux.vnet.ibm.com> Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2011-10-14tcg: Fix spelling in comment (varables -> variables)Stefan Weil1-1/+1
Signed-off-by: Stefan Weil <sw@weilnetz.de> Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2011-10-14remove hpet.hPaolo Bonzini1-22/+0
It is unused since the HPET and RTC timers were removed (commit 25f3151, 2011-05-31). Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2011-10-14arm_pic: Fix typoAndreas Färber1-1/+1
interrput -> interrupt Cc: Paul Brook <paul@codesourcery.com> Signed-off-by: Andreas Färber <andreas.faerber@web.de> Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2011-10-14qemu-char: Fix use of free() instead of g_free()Stefan Weil1-4/+4
cppcheck reported these errors: qemu-char.c:1667: error: Mismatching allocation and deallocation: s qemu-char.c:1668: error: Mismatching allocation and deallocation: chr qemu-char.c:1769: error: Mismatching allocation and deallocation: s qemu-char.c:1770: error: Mismatching allocation and deallocation: chr Tested-by: Dongxu Wang <wdongxu@linux.vnet.ibm.com> Signed-off-by: Stefan Weil <sw@weilnetz.de> Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2011-10-14qemu-options: avoid #if in spicevmc texi helpStefan Hajnoczi1-2/+2
Preprocessor directives cannot be used in STEXI/ETEXI sections since they are not passed through the preprocessor. The spicevmc chardev option help currently uses #if, which is included verbatim in the man page output. Fix this by simply stating that spicevmc chardevs are available only in builds with spice support. Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2011-10-14linux-aio: Allow reads beyond the end of growable imagesKevin Wolf1-3/+14
This is the linux-aio version of commits 22afa7b5 (raw-posix, synchronous) and ba1d1afd (posix-aio-compat). Reads now produce zeros after the end of file instead of failing or resulting in short reads, making linux-aio compatible with the behaviour of synchronous raw-posix requests and posix-aio-compat. The problem can be reproduced like this: dd if=/dev/zero of=/tmp/test.raw bs=1 count=1234 ./qemu-io -k -n -g -c 'read -p 1024 512' /tmp/test.raw Previously, the result of this was 'read failed: Invalid argument', now the read completes successfully. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2011-10-13block: switch bdrv_aio_writev() to coroutinesStefan Hajnoczi1-64/+2
More sync, aio, and coroutine unification. Make bdrv_aio_writev() go through coroutine request processing. Remove the dirty block callback mechanism which was needed only for aio processing and can be done more naturally in coroutine context. Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-10-13block: mark blocks dirty on coroutine write completionStefan Hajnoczi1-1/+4
The aio write operation marks blocks dirty when the write operation completes. The coroutine write operation marks blocks dirty before issuing the write operation. It seems safest to mark the block dirty when the operation completes so that anything tracking dirty blocks will not act before the change has been made to the image file. Make the coroutine write operation dirty blocks on write completion. Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-10-13block: switch bdrv_aio_readv() to coroutinesStefan Hajnoczi1-13/+35
More sync, aio, and coroutine unification. Make bdrv_aio_readv() go through coroutine request processing. Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-10-13block: switch bdrv_read()/bdrv_write() to coroutinesStefan Hajnoczi1-50/+62
The bdrv_read()/bdrv_write() functions call .bdrv_read()/.bdrv_write(). They should go through bdrv_co_do_readv() and bdrv_co_do_writev() instead in order to unify request processing code across sync, aio, and coroutine interfaces. This is also an important step towards removing BlockDriverState .bdrv_read()/.bdrv_write() in the future. Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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