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2011-10-01Document softmmu templatesBlue Swirl
Add some comments to describe each file. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-10-01ESP: convert to trace frameworkBlue Swirl
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-10-01PPC: Drop initial ESCC mappingAlexander Graf
We are mapping ESCC to a static (incorrect) address on machine init. This overlaps with our vram, rendering the screen barely usable. Since openBIOS is clever enough to map ESCC to where it needs to be, we can just drop that invalid map and everyone's happy. Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-10-01tcg-i386: Introduce limited deposit supportJan Kiszka
x86 cannot provide an optimized generic deposit implementation. But at least for a few special cases, namely for writing bits 0..7, 8..15, and 0..15, versions using only a single instruction are feasible. Introducing such limited support improves emulating 16-bit x86 code on x86, but also rarer cases where 32-bit or 64-bit code accesses bytes or words. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-10-01mips_fulong2e: Reorder ISA bus and i8259 creationJan Kiszka
Missed during memory region conversion: The i8259 now depends on the ISA bus being created first. Reorder the initialization. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-10-01target-i386: Remove redundant word mask in port out instructionsJan Kiszka
T0 was already masked to 16 bits when loading it. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-10-01softfloat: Reinstate accidentally disabled target-specific NaN handlingPeter Maydell
Include config.h in softfloat.c, so that the target specific ifdefs in softfloat-specialize.h are evaluated correctly. This was accidentally broken in commit 789ec7ce2 when config-target.h was removed from softfloat.h, and means that most targets will have been returning the wrong results for calculations involving NaNs. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-10-01tcg/arm: Remove unused tcg_out_addi()Peter Maydell
Remove the unused function tcg_out_addi() from the ARM TCG backend; this fixes a compilation failure on ARM hosts with newer gcc. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-10-01configure: Detect predefined compiler symbols for ARM and HPPABrad
To be able to detect some ARM / HPPA based architectures such as with OpenBSD/(armish / zaurus) or OpenBSD/hppa. Signed-off-by: Brad Smith <brad@comstyle.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-10-01tcg: Add some assertionsStefan Weil
Signed-off-by: Stefan Weil <weil@mail.berlios.de> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-10-01tcg: Add forward declarations for local functionsStefan Weil
These functions are defined in the tcg target specific file tcg-target.c. The forward declarations assert that every tcg target uses the same function prototype. Signed-off-by: Stefan Weil <weil@mail.berlios.de> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-10-01tcg: Don't declare TCG_TARGET_REG_BITS in tcg-target.hStefan Weil
It is now declared for all tcg targets in tcg.h, so the tcg target specific declarations are redundant. Signed-off-by: Stefan Weil <weil@mail.berlios.de> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-10-01tcg: Declare TCG_TARGET_REG_BITS in tcg.hStefan Weil
TCG_TARGET_REG_BITS can be determined by the compiler, so there is no need to declare it for each individual tcg target. This is especially important for new tcg targets which will be supported by the tcg interpreter. Signed-off-by: Stefan Weil <weil@mail.berlios.de> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-09-29Merge remote-tracking branch 'kiszka/queues/slirp' into stagingAnthony Liguori
2011-09-29Merge remote-tracking branch 'aneesh/for-upstream-5' into stagingAnthony Liguori
2011-09-28Add OpenBIOS as a submoduleBlue Swirl
Update OpenBIOS images to r1047 built from submodule. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-09-28slirp: Fix packet expirationThomas Huth
The two new variables "arp_requested" and "expiration_date" in the mbuf structure have been added after the variable-sized "m_dat_" array. The variables have to be added before the m_dat_ array instead. Without this patch, the expiration_date gets clobbered by code that accesses the m_dat_ array. I experienced this problem with the code in slirp/tftp.c: The tftp_send_data() function created a new packet with the m_get() function (which fills-in a default expiration_date value). Then the TFTP code cleared the data section of the packet, which accidentially also cleared the expiration_date. This zeroed expiration_date then finally causes the packet to be discarded during if_start(), so that TFTP packets were not transmitted anymore. [Jan: added comment as suggested by Fabien ] CC: Fabien Chouteau <chouteau@adacore.com> Signed-off-by: Thomas Huth <thuth@linux.vnet.ibm.com> Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
2011-09-28slirp: Fix use after release on tcp_inputJan Kiszka
ti points into the m buffer. But the latter may already be released right after the dodata: label. Move the test before the potential release. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
2011-09-27PPC: use memory API to construct the PCI holeBlue Swirl
Avoid vga.chain4 mapping by constructing a PCI hole for upper 2G of the PCI space. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-09-26Merge remote-tracking branch 'qemu-kvm-tmp/memory/urgent' into stagingAnthony Liguori
2011-09-26Merge remote-tracking branch 'qemu-kvm-tmp/memory/batch' into stagingAnthony Liguori
2011-09-26Merge remote-tracking branch 'qemu-kvm-tmp/memory/core' into stagingAnthony Liguori
2011-09-26Merge remote-tracking branch 'pmaydell/omap-for-upstream' into stagingAnthony Liguori
2011-09-26Merge remote-tracking branch 'riku/linux-user-for-upstream' into stagingAnthony Liguori
2011-09-25ppc_prep: fix pci config space initializationAvi Kivity
Use data_mem for the data mmio region, not conf_mem. Signed-off-by: Avi Kivity <avi@redhat.com>
2011-09-25fdc: Convert isabus_fdc_init1 to MemoryRegionRichard Henderson
This requires some amount of hoop-jumping, so that we don't inadvertently claim port 0x3f6, which is used by ISA IDE. The sysbus initialization path is as yet unconverted. Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Avi Kivity <avi@redhat.com>
2011-09-25serial: Convert serial_isa_initfn to MemoryRegionRichard Henderson
The serial_mm_init path is as yet unconverted. Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Avi Kivity <avi@redhat.com>
2011-09-25pckbd: Convert to MemoryRegionRichard Henderson
Slightly non-obvious with mips_jazz passing in the region structure to populate. Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Avi Kivity <avi@redhat.com>
2011-09-25i8259: Convert to MemoryRegionRichard Henderson
The only non-obvious part is pic_poll_read which used "addr1 >> 7" to detect whether one referred to either the master or slave PIC. Instead, test this directly. Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Avi Kivity <avi@redhat.com>
2011-09-25ppc_prep: initialize i8259 after the ISA busAvi Kivity
Succeeding i8259 conversion to ISA requires this. Signed-off-by: Avi Kivity <avi@redhat.com>
2011-09-25mips_r4k: initialize i8259 after the ISA busAvi Kivity
Succeeding i8259 conversion to ISA requires this. Signed-off-by: Avi Kivity <avi@redhat.com>
2011-09-25mips_jazz: initialize i8259 after the ISA busAvi Kivity
Succeeding i8259 conversion to ISA requires this. Signed-off-by: Avi Kivity <avi@redhat.com>
2011-09-25mips_malta: move i8259 initialization after piix4 initializationAvi Kivity
i8259 is an ISA device (or at least, depends on the ISA infrastructure to register its ioport); and the ISA bus is supplied by piix4. Later patches make this dependency explicit. Use qemu_irq_proxy() to stop the cycle by adding an extra layer of indirection. Signed-off-by: Avi Kivity <avi@redhat.com>
2011-09-25i8254: Convert to MemoryRegionRichard Henderson
Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Avi Kivity <avi@redhat.com>
2011-09-25cs4231a: Convert to MemoryRegionRichard Henderson
Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Avi Kivity <avi@redhat.com>
2011-09-25pc: Re-order pc_init1 to initialize the ISA bus before ISA devicesRichard Henderson
In particular, the i8259 was being initialized before the ISA bus, leading to a crash. Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Avi Kivity <avi@redhat.com>
2011-09-25isa: add isa_register_ioport()Richard Henderson
To replace isa_init_ioport and isa_init_ioport_range as the ISA devices are converted to the memory api. [avi: use memory_region_size()] Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Avi Kivity <avi@redhat.com>
2011-09-25isa: Pass i/o address space to isa_bus_newRichard Henderson
Not used yet, but at least we're provided with the correct region. Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Avi Kivity <avi@redhat.com>
2011-09-25pci: add pci_address_space_io()Richard Henderson
Returns the I/O address space. Useful for implementing PCI-ISA bridge devices. Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Avi Kivity <avi@redhat.com>
2011-09-25memory: implement memory_region_set_readonly()Avi Kivity
The property is inheritable, but only if set to true. This is so that memory routers can mark sections of RAM as read-only via aliases. Signed-off-by: Avi Kivity <avi@redhat.com>
2011-09-23MAINTAINERS: update maintainer for target-arm and ARM devboardsPeter Maydell
Add myself as co-maintainer alongside Paul Brook for the TCG ARM guest implementation (target-arm) and the ARM dev boards (integratorcp, realview, stellaris, versatilepb). Acked-by: Edgar E. Iglesias <edgar.iglesias@gmail.com> Acked-by: Anthony Liguori <aliguori@us.ibm.com> Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-09-23Makefile: Remove 'tarbin' targetPeter Maydell
Remove the 'tarbin' target -- it isn't used as part of the official QEMU release process, and it's out of date (various new bios files were never added to its list of files). It's better not to provide it at all than to have a broken makefile target we never use or test. (Creating a tarball by just pulling in binaries that have been installed directly to the system you're running the build on is a bad idea anyway: the better way to create a binary tarball would be just to install to a temporary DESTDIR and then tar up that.) Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-09-23qemu-char: use qemu_set_fd_handler/2 consistentlyMarcelo Tosatti
Now that qemu_set_fd_handler and qemu_set_fd_handler2 have different implementations, one using qemu iohandlers and the other glib, it is not safe to mix the two when inserting/deleting handlers. Fixes kvm-autotest. Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-09-23adlib: remove write-only variableHervé Poussineau
Signed-off-by: Hervé Poussineau <hpoussin@reactos.org> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-09-23irq: introduce qemu_irq_proxy()Avi Kivity
In some cases we have a circular dependency involving irqs - the irq controller depends on a bus, which in turn depends on the irq controller. Add qemu_irq_proxy() which acts as a passthrough, except that the target irq may be set later on. Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-09-23Barriers in qemu-barrier.h should not be x86 specificDavid Gibson
qemu-barrier.h contains a few macros implementing memory barrier primitives used in several places throughout qemu. However, apart from the compiler-only barrier, the defined wmb() is correct only for x86, or platforms which are similarly strongly ordered. This patch addresses the FIXME about this by making the wmb() macro arch dependent. On x86, it remains a compiler barrier only, but with a comment explaining in more detail the conditions under which this is correct. On weakly-ordered powerpc, an "eieio" instruction is used, again with explanation of the conditions under which it is sufficient. On other platforms, we use the __sync_synchronize() primitive, available in sufficiently recent gcc (4.2 and after?). This should implement a full barrier which will be sufficient on all platforms, although it may be overkill in some cases. Other platforms can add optimized versions in future if it's worth it for them. Without proper memory barriers, it is easy to reproduce ordering problems with virtio on powerpc; specifically, the QEMU puts new element into the "used" ring and then updates the ring free-running counter. Without a barrier between these under the right circumstances, the guest linux driver can receive an interrupt, read the counter change but find the ring element to be handled still has an old value, leading to an "id %u is not a head!\n" error message. Similar problems are likely to be possible with kvm on other weakly ordered platforms. Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru> Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-09-23virtio: Use global memory barrier macrosDavid Gibson
The virtio code uses wmb() macros in several places, as required by the SMP-aware virtio protocol. However the wmb() macro is locally defined to be a compiler barrier only. This is probably sufficient on x86 due to its strong storage ordering model, but it certainly isn't on other platforms, such as ppc. In any case, qemu already has some globally defined memory barrier macros in qemu-barrier.h. This patch, therefore converts virtio.c to use those barrier macros. The macros in qemu-barrier.h are also wrong (or at least, safe for x86 only) but this way at least there's only one place to fix them. Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru> Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru> Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-09-23Fix and clean code which tests the gcc versionStefan Weil
The code which tests whether gcc supports warn_unused_result was wrong. Remove the wrong test from configure and replace it by code using macro QEMU_GNUC_PREREQ in compiler.h. Signed-off-by: Stefan Weil <weil@mail.berlios.de> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-09-23Move macro QEMU_GNUC_PREREQ to compiler.hStefan Weil
The macro is compiler specific and does not depend on the operating system. Move macro QEMU_GNUC_PREREQ from osdep.h to compiler.h and use it to simplify existing code. host-utils.h uses this macro, so it now needs compiler.h instead of osdep.h. Signed-off-by: Stefan Weil <weil@mail.berlios.de> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-09-23pci-devfn: check that device/slot number is within rangeDonald Dutile
Need to check that guest slot/device number is not > 31 or walk off the devfn table when checking if a devfn is available or not in a guest. before this fix, passing in an addr=abc or addr=34, can crash qemu, sometimes fail gracefully if data past end of devfn table fails the availability test. with this fix, get clean error: Property 'pci-assign.addr' doesn't take value '34' also tested when no addr= param passed for guest (pcicfg) address, and that worked as well. Signed-off-by: Don Dutile <ddutile@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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