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2012-07-09blkdebug: store list of active rulesPaolo Bonzini1-38/+31
This prepares for the next patch, where some active rules may actually not trigger depending on input to readv/writev. Store the active rules in a SIMPLEQ (so that it can be emptied easily with QSIMPLEQ_INIT), and fetch the errno/once/immediately arguments from there. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-07-09blkdebug: pass getlength to underlying filePaolo Bonzini1-0/+6
This is required when using blkdebug with raw format. Unlike qcow2/QED, raw asks blkdebug for the length of the file, it doesn't get it from a header. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-07-09blkdebug: tiny cleanupPaolo Bonzini1-6/+2
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-07-09blkdebug: remove sync i/o eventsPaolo Bonzini3-5/+1
These are unused, except (by mistake more or less) in QED. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-07-09sheepdog: traverse pending_list from the first for each timeMORITA Kazutaka1-6/+16
The pending list can be modified in other coroutine context sd_co_rw_vector, so we need to traverse the list from the first again after we send the pending request. Signed-off-by: MORITA Kazutaka <morita.kazutaka@lab.ntt.co.jp> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-07-09sheepdog: split outstanding list into inflight and pendingMORITA Kazutaka1-25/+24
outstanding_list_head is used for both pending and inflight requests. This patch splits it and improves readability. Signed-off-by: MORITA Kazutaka <morita.kazutaka@lab.ntt.co.jp> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-07-09sheepdog: make sure we don't free aiocb before sending all requestsMORITA Kazutaka1-13/+16
This patch increments the pending counter before sending requests, and make sures that aiocb is not freed while sending them. Signed-off-by: MORITA Kazutaka <morita.kazutaka@lab.ntt.co.jp> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-07-09sheepdog: use coroutine based socket functions in coroutine contextMORITA Kazutaka1-2/+8
This removes blocking network I/Os in coroutine context. Signed-off-by: MORITA Kazutaka <morita.kazutaka@lab.ntt.co.jp> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-07-09sheepdog: restart I/O when socket becomes ready in do_co_req()MORITA Kazutaka1-0/+14
Currently, no one reenters the yielded coroutine. This fixes it. Signed-off-by: MORITA Kazutaka <morita.kazutaka@lab.ntt.co.jp> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-07-09sheepdog: fix dprintf format stringsMORITA Kazutaka1-4/+4
This fixes warnings about dprintf format in debug mode. Signed-off-by: MORITA Kazutaka <morita.kazutaka@lab.ntt.co.jp> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-07-09blockdev: warn when copy_on_read=on and readonly=onStefan Hajnoczi1-0/+4
If the image is read-only then it's not possible to copy read data into it. Therefore copy-on-read is automatically disabled for read-only images. Up until now this behavior was silent, add a warning so the user knows why copy-on-read is not working. Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-07-09qcow2: preserve free_byte_offset when qcow2_alloc_bytes() failsStefan Hajnoczi1-3/+4
When qcow2_alloc_clusters() error handling code was introduced in commit 5d757b563d59142ca81e1073a8e8396750a0ad1a, the value of free_byte_offset was clobbered in the error case. This patch keeps free_byte_offset at 0 so we will try to allocate clusters again next time this function is called. Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-07-09qcow2: fix #ifdef'd qcow2_check_refcounts() callersStefan Hajnoczi2-4/+4
The DEBUG_ALLOC qcow2.h macro enables additional consistency checks throughout the code. This makes it easier to spot corruptions that are introduced during development. Since consistency check is an expensive operation the DEBUG_ALLOC macro is used to compile checks out in normal builds and qcow2_check_refcounts() calls missed the addition of a new function argument. Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-07-07bitops.h: Add functions to extract and deposit bitfieldsPeter Maydell1-0/+90
Add functions deposit32(), deposit64(), extract32() and extract64() to extract and deposit bitfields in 32 and 64 bit words. Based on ideas by Jia Liu and Avi Kivity. Suggested-by: Jia Liu <proljc@gmail.com> Suggested-by: Avi Kivity <avi@redhat.com> Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-07-07target-i386: make it clearer that op table accesses don't overrunPeter Maydell1-6/+6
Rephrase some of the expressions used to select an entry in the SSE op table arrays so that it's clearer that they don't overrun the op table array size. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Stefan Weil <sw@weilnetz.de> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-07-07target-i386: Remove confusing X86_64_DEF macroPeter Maydell1-15/+24
The X86_64_DEF macro is a confusing way of making some terms in a conditional only appear if TARGET_X86_64 is defined. We only use it in two places, and in both cases this is for making the same test, so abstract that check out into a function where we can use a more conventional #ifdef. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-07-07target-i386: Remove unused macrosPeter Maydell1-6/+0
Commit 11f8cdb removed all the uses of the X86_64_ONLY macro. The BUGGY_64() macro has been unused for a long time: it originally marked some ops which couldn't be enabled because of issues with the pre-TCG code generation scheme. Remove the now-unnecessary definitions of both macros. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Stefan Weil <sw@weilnetz.de> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-07-07.gitignore updateEduardo Habkost1-0/+6
Makes sure the following files are ignored: libcacard/.libs/ libcacard/libcacard.la libcacard/libcacard.pc libcacard/libcacard/ libcacard/osdep.lo libcacard/oslib-posix.lo libcacard/qemu-thread-posix.lo libcacard/qemu-timer-common.lo libcacard/trace.lo libcacard/trace/ tests/test-visitor-serialization vscclient Signed-off-by: Eduardo Habkost <ehabkost@redhat.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-07-07Merge branch 'arm-devs.for-upstream' of ↵Blue Swirl13-8/+2689
git://git.linaro.org/people/pmaydell/qemu-arm * 'arm-devs.for-upstream' of git://git.linaro.org/people/pmaydell/qemu-arm: hw/cadence_gem: Make rx_desc_addr and tx_desc_addr uint32_t i.MX31: KZM-ARM11-01 evaluation board i.MX31: Interrupt Controller i.MX31: Timers i.MX31: Clock Control Module i.MX: UART support Exynos4: add RTC device hw/exynos4210.c: Fix misleading initialization of IROM mirror hw/exynos4210_pwm.c: Fix STOP status in tick handler. ARM: hw/exynos4210_mct.c: Fix a bug which hangs Linux kernel.
2012-07-05target-i386: Fix compilation with --enable-debugStefan Weil1-25/+34
commit c4baa0503d9623f1ce891f525ccd140c598bc29a improved SSE table type safety which now raises compiler errors when latest QEMU was configured with --enable-debug. Fix this by splitting the SSE tables even further to separate helper functions with different signatures. Instead of crashing by calling address 0, the code now jumps to label illegal_op. Signed-off-by: Stefan Weil <sw@weilnetz.de> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-07-04hw/cadence_gem: Make rx_desc_addr and tx_desc_addr uint32_tPeter Maydell1-2/+2
Make the state fields rx_desc_addr and tx_desc_addr uint32_t; this matches the VMStateDescription, and also conforms to how hardware works: the registers don't magically become larger if the device is attached to a CPU with a larger physical address size. It also fixes a compile failure if the target_phys_addr_t type is changed to 64 bits. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Peter A. G. Crosthwaite <peter.crosthwaite@petalogix.com>
2012-07-04i.MX31: KZM-ARM11-01 evaluation boardPeter Chubb3-0/+161
Board support for Kyoto Micro's KZM-ARM11-01, an evaluation board built around the Freescale i.MX31. Signed-off-by: Philip O'Sullivan <philipo@ok-labs.com> Signed-off-by: Peter Chubb <peter.chubb@nicta.com.au> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2012-07-04i.MX31: Interrupt ControllerPeter Chubb2-1/+409
Implement the Freescale i.MX31 advanced vectored interrupt controller, at least to the extent it is used by Linux 3.x Vectors are not implemented. Signed-off-by: Philip O'Sullivan <philipo@ok-labs.com> Signed-off-by: Peter Chubb <peter.chubb@nicta.com.au> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2012-07-04i.MX31: TimersPeter Chubb3-1/+698
Implement the timers on the Freescale i.MX31 SoC. This is not a complete implementation, but gives enough for Linux to boot and run. In particular external triggers, which are not useful under QEMU, are not implemented. Signed-off-by: Philip O'Sullivan <philipo@ok-labs.com> Signed-off-by: Peter Chubb <peter.chubb@nicta.com.au> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2012-07-04i.MX31: Clock Control ModulePeter Chubb3-1/+332
For Linux to be able to work out how fast its clocks are going, so that timer ticks come approximately at the right time, it needs to be able to query the clock control module (CCM). This is the start of a CCM implementation. It currently knows only about the MCU, HSP and IPG clocks --- i.e., the ones used to feed the periodic and general purpose timers. Signed-off-by: Peter Chubb <peter.chubb@nicta.com.au> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2012-07-04i.MX: UART supportPeter Chubb3-0/+484
Implement the Freescale i.MX UART. This uart is used in a variety of SoCs, including some by Motorola, as well as in the Freescale i.MX series. This patch gives only a `bare-bones' implementation, enough to run Linux or OKL4, but that's about it. Signed-off-by: Philip O'Sullivan <philipo@ok-labs.com> Signed-off-by: Peter Chubb <peter.chubb@nicta.com.au> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2012-07-04Exynos4: add RTC deviceOleg Ogurtsov3-0/+604
Signed-off-by: Oleg Ogurtsov <o.ogurtsov@samsung.com> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2012-07-04hw/exynos4210.c: Fix misleading initialization of IROM mirrorEvgeny Voevodin1-1/+1
We want to mirror whole IROM and should pass zero instead of EXYNOS4210_IROM_BASE_ADDR (though it equals to zero too) since memory_region_init_alias takes an offset within an original region as an argument. Signed-off-by: Evgeny Voevodin <e.voevodin@samsung.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2012-07-04hw/exynos4210_pwm.c: Fix STOP status in tick handler.Evgeny Voevodin1-1/+1
START/STOP bit was not cleaned correctly. Signed-off-by: Evgeny Voevodin <e.voevodin@samsung.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2012-07-04ARM: hw/exynos4210_mct.c: Fix a bug which hangs Linux kernel.Stanislav Vorobiov1-4/+0
After some long period of time Linux kernel hanged due to ptimer_get_count may return 0 before timer interrupt occurs, thus, causing FRC to jump back in time Signed-off-by: Evgeny Voevodin <e.voevodin@samsung.com> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2012-06-28bsd-user: fix buildBlue Swirl2-1/+4
Link in oslib objects also for BSD user, but avoid using the version of qemu_vmalloc() defined in oslib-posix.c. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-06-28x86: rename op_helper.c to seg_helper.cBlue Swirl2-3/+3
Rename what is remaining of op_helper.c to seg_helper.c. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-06-28x86: split off memory access helpersBlue Swirl3-137/+165
Move memory access helpers to mem_helper.c. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-06-28x86: split off misc helpersBlue Swirl3-579/+605
Move various functions to misc_helper.c. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-06-28x86: split off SMM helpersBlue Swirl3-285/+309
Move SMM helpers to smm_helper.c. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-06-28x86: split off SVM helpersBlue Swirl4-710/+734
Move SVM helpers to svm_helper.c. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-06-28x86: split off integer helpersBlue Swirl3-479/+502
Move integer and bit field helpers to int_helper.c. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-06-28x86: split off condition code helpersBlue Swirl4-407/+432
Move condition code helpers to cc_helper.c. Move the shared inline functions lshift(), cpu_load_eflags() and cpu_cc_compute_all() to cpu.h. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-06-28x86: prepare eflags helpers for general useBlue Swirl1-31/+37
Adjust function names and add an explicit CPUX86State parameter instead of relying on AREG0. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-06-28x86: split condition code and shift templatesBlue Swirl3-81/+133
Move shift templates from helper_template.h to shift_helper_template.h and the condition code helpers to cc_helper_template.h. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-06-28x86: fix coding style in helper_template.hBlue Swirl1-3/+22
Fix coding style in helper_template.h before next commit. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-06-28x86: improve SSE table type safetyBlue Swirl1-45/+89
SSE function tables could easily be corrupted because of use of void pointers. Introduce function pointer types and helper variables in order to improve type safety. Split sse_op_table3 according to types used. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-06-28x86: split off FPU helpersBlue Swirl3-1278/+1306
Move FPU and MMX/SSE helpers to fpu_helpers.c. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-06-28x86: fix coding style in ops_sse.hBlue Swirl1-471/+578
Fix coding style in ops_sse.h before next commit. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-06-28x86: avoid an extern declarationBlue Swirl1-4/+1
After the previous patch, we can use the proper declaration in a common header file. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-06-28x86: split off exception handlersBlue Swirl4-116/+140
Move exception handlers from op_helper.c to excp_helper.c. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-06-28x86: avoid AREG0 for exceptionsBlue Swirl7-220/+234
Add an explicit CPUX86State parameter instead of relying on AREG0. Merge raise_exception_env() to raise_exception(), likewise with raise_exception_err_env() and raise_exception_err(). Introduce cpu_svm_check_intercept_param() and cpu_vmexit() as wrappers. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-06-28x86: prepare op_helper.c for splittingBlue Swirl1-796/+1279
Fix coding style and a few typos. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-06-27Add a memory barrier to DMA functionsBenjamin Herrenschmidt2-2/+53
The emulated devices can run simultaneously with the guest, so we need to be careful with ordering of load and stores done by them to the guest system memory, which need to be observed in the right order by the guest operating system. This adds a barrier call to the basic DMA read/write ops which is currently implemented as a smp_mb(), but could be later improved for more fine grained control of barriers. Additionally, a _relaxed() variant of the accessors is provided to easily convert devices who would be performance sensitive and negatively impacted by the change. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-06-27pseries: Implement IOMMU and DMA for PAPR PCI devicesDavid Gibson4-18/+39
Currently the pseries machine emulation does not support DMA for emulated PCI devices, because the PAPR spec always requires a (guest visible, paravirtualized) IOMMU which was not implemented. Now that we have infrastructure for IOMMU emulation, we can correct this and allow PCI DMA for pseries. With the existing PAPR IOMMU code used for VIO devices, this is almost trivial. We use a single DMAContext for each (virtual) PCI host bridge, which is the usual configuration on real PAPR machines (which often have _many_ PCI host bridges). Cc: Alex Graf <agraf@suse.de> Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru> Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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