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2012-06-24dt: add helper for 64bit cell addsAlexander Graf
Some times in the device tree, we find an array of 2 u32 cells that really are a single u64 value. This patch adds a helper to make the creation of these easy. Signed-off-by: Alexander Graf <agraf@suse.de> Reviewed-by: Peter Crosthwaite <peter.crosthwaite@petalogix.com>
2012-06-24dt: add helper for phandle allocationAlexander Graf
Phandle references work by having 2 pieces: - a "phandle" 1-cell property in the device tree node - a reference to the same value in a property we want to point to the other node To generate the 1-cell property, we need an allocation mechanism that gives us a unique number space. This patch adds an allocator for these properties. Signed-off-by: Alexander Graf <agraf@suse.de>
2012-06-24dt: add helper for empty dt creationAlexander Graf
We want to get rid of the concept of loading an external device tree and instead generate our own. However, to do this we need to also create a device tree template programatically. This patch adds a helper to create an empty device tree in memory. Signed-off-by: Alexander Graf <agraf@suse.de> Reviewed-by: Peter Crosthwaite <peter.crosthwaite@petalogix.com>
2012-06-24dt: add helper for phandle enumerationAlexander Graf
This patch adds a helper to search for a node's phandle by its path. This is especially useful when the phandle is part of an array, not just a single cell in which case qemu_devtree_setprop_phandle would be the easy choice. Signed-off-by: Alexander Graf <agraf@suse.de> Reviewed-by: Peter Crosthwaite <peter.crosthwaite@petalogix.com>
2012-06-24dt: temporarily disable subtree creation failure checkAlexander Graf
Usually we want to know when creating a subtree fails. However, while introducing this patch set we have to modify the device tree and some times have the code to create a subtree in both the binary tree and the dynamically created tree. So ignore failures about this for now and enable them once we got rid of the binary device tree. Signed-off-by: Alexander Graf <agraf@suse.de>
2012-06-24dt: add helper for phandle referencesAlexander Graf
Phandles are the fancy device tree name for "pointer to another node". To create a phandle property, we most likely want to reference to the node we're pointing to by its path. So create a helper that allows us to do so. Signed-off-by: Alexander Graf <agraf@suse.de> Reviewed-by: Peter Crosthwaite <peter.crosthwaite@petalogix.com>
2012-06-24dt: add helpers for multi-cell addsAlexander Graf
We have device tree helpers that allow us to create single cell (u32) wide properties. However, when creating properties that contain an array of cells, we need to jump through hoops, manually passing in an array with converted endianness. To ease the pain of this, create a generic macro helper that allows us to pass the cells as arguments. Signed-off-by: Alexander Graf <agraf@suse.de> Reviewed-by: Peter Crosthwaite <peter.crosthwaite@petalogix.com>
2012-06-24dt: allow add_subnode to create root subnodesAlexander Graf
Our subnode creation helper can't handle creation of root subnodes, like "/memory". Fix this by allowing the parent node to be an empty string, indicating the root node. Signed-off-by: Alexander Graf <agraf@suse.de> Reviewed-by: Peter Crosthwaite <peter.crosthwaite@petalogix.com>
2012-06-24raw-posix: Fix build without is_allocated supportKevin Wolf
Move the declaration of s into the #ifdef sections that actually make use of it. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2012-06-24spapr: Add "memop" hypercallBenjamin Herrenschmidt
This adds a qemu-specific hypervisor call to the pseries machine which allows to do what amounts to memmove, memcpy and xor over regions of physical memory such as the framebuffer. This is the simplest way to get usable framebuffer speed from SLOF since the framebuffer isn't mapped in the VRMA and so would otherwise require an hcall per 8 bytes access. The performance is still not great but usable, and can be improved with a more complex implementation of the hcall itself if needed. This also adds some documentation for the qemu-specific hypercalls that we add to PAPR along with a new qemu,hypertas-functions property that mirrors ibm,hypertas-functions and provides some discoverability for the new calls. Note: I chose note to advertise H_RTAS to the guest via that mechanism. This is done on purpose, the guest uses the normal RTAS interfaces provided by qemu (including SLOF) which internally calls H_RTAS. We might in the future implement part (or even all) of RTAS inside the guest like IBM's firmware does and replace H_RTAS with some finer grained set of private hypercalls. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Alexander Graf <agraf@suse.de>
2012-06-24spapr_vscsi: Error handling fixesBenjamin Herrenschmidt
We were incorrectly g_free'ing an object that isn't allocated in one error path and failed to release it completely in another This fixes qemu crashes with some cases of IO errors. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Alexander Graf <agraf@suse.de>
2012-06-24pseries: Correctly create ibm,segment-page-sizes propertyBenjamin Herrenschmidt
The core tcg/kvm code for ppc64 now has at least the outline capability to support pagesizes beyond the standard 4k and 16MB. The CPUState is initialized with information advertising the available pagesizes and their correct encodings, and under the right KVM setup this will be populated with page sizes beyond the standard. Obviously guests can't use the extra page sizes unless they know they're present. For the pseries machine, at least, there is a defined method for conveying exactly this information, the "ibm-segment-page-sizes" property in the guest device tree. This patch generates this property using the supported page size information that's already in the CPUState. Signed-off-by: Nishanth Aravamudan <nacc@us.ibm.com> Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Alexander Graf <agraf@suse.de>
2012-06-24ppc64: Rudimentary Support for extra page sizes on server CPUsBenjamin Herrenschmidt
More recent Power server chips (i.e. based on the 64 bit hash MMU) support more than just the traditional 4k and 16M page sizes. This can get quite complicated, because which page sizes are supported, which combinations are supported within an MMU segment and how these page sizes are encoded both in the SLB entry and the hash PTE can vary depending on the CPU model (they are not specified by the architecture). In addition the firmware or hypervisor may not permit use of certain page sizes, for various reasons. Whether various page sizes are supported on KVM, for example, depends on whether the PR or HV variant of KVM is in use, and on the page size of the memory backing the guest's RAM. This patch adds information to the CPUState and cpu defs to describe the supported page sizes and encodings. Since TCG does not yet support any extended page sizes, we just set this to NULL in the static CPU definitions, expanding this to the default 4k and 16M page sizes when we initialize the cpu state. When using KVM, however, we instead determine available page sizes using the new KVM_PPC_GET_SMMU_INFO call. For old kernels without that call, we use some defaults, with some guesswork which should do the right thing for existing HV and PR implementations. The fallback might not be correct for future versions, but that's ok, because they'll have KVM_PPC_GET_SMMU_INFO. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Alexander Graf <agraf@suse.de>
2012-06-24booke_206_tlbwe: Discard invalid bits in MAS2Fabien Chouteau
The size of EPN field in MAS2 depends on page size. This patch adds a mask to discard invalid bits in EPN field. Definition of EPN field from e500v2 RM: EPN Effective page number: Depending on page size, only the bits associated with a page boundary are valid. Bits that represent offsets within a page are ignored and should be cleared. There is a similar (but more complicated) definition in PowerISA V2.06. Signed-off-by: Fabien Chouteau <chouteau@adacore.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2012-06-24Avoid segfault in cpu_dump_stateFabien Chouteau
Do not call cpu_dump_state if logfile is NULL. Signed-off-by: Fabien Chouteau <chouteau@adacore.com> [agraf: adjust to inline functions] Signed-off-by: Alexander Graf <agraf@suse.de>
2012-06-24PPC: mpc8544ds: Span initial TLB entry over as much RAM as we needAlexander Graf
The initial TLB entry is supposed to help us run the guest -kernel payload. This means the guest needs to be able to access its own memory, the initrd memory and the device tree. So far we only statically reserved a TLB entry from [0;256M[. This patch fixes it to span from [0;dt_end[, allowing the guest payload to access everything initially. Reported-by: Stuart Yoder <stuart.yoder@freescale.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2012-06-24ppc: Make hbrev table constBlue Swirl
Lookup table 'hbrev' is never written to, so add a 'const' qualifier. Signed-off-by: Blue Swirl <blauwirbel@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Alexander Graf <agraf@suse.de>
2012-06-24ppc: Add missing breakBlue Swirl
Add obviously missing 'break' statement. Signed-off-by: Blue Swirl <blauwirbel@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Alexander Graf <agraf@suse.de>
2012-06-24ppc: Move load and store helpers, switch to AREG0 free modeBlue Swirl
Add an explicit CPUPPCState parameter instead of relying on AREG0 and rename op_helper.c (which only contains load and store helpers) to mem_helper.c. Remove AREG0 swapping in tlb_fill(). Switch to AREG0 free mode. Use cpu_ld{l,uw}_code in translation and interrupt handling, cpu_{ld,st}{l,uw}_data in loads and stores. Signed-off-by: Blue Swirl <blauwirbel@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Alexander Graf <agraf@suse.de>
2012-06-24ppc: Move misc helpers from helper.c to misc_helper.cBlue Swirl
Move more misc helpers from helper.c to misc_helper.c. Signed-off-by: Blue Swirl <blauwirbel@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Alexander Graf <agraf@suse.de>
2012-06-24ppc: Avoid AREG0 for misc helpersBlue Swirl
Add an explicit CPUPPCState parameter instead of relying on AREG0. Signed-off-by: Blue Swirl <blauwirbel@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Alexander Graf <agraf@suse.de>
2012-06-24ppc: Split off misc helpersBlue Swirl
Move misc helpers from op_helper.c to misc_helpers.c. Signed-off-by: Blue Swirl <blauwirbel@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Alexander Graf <agraf@suse.de>
2012-06-24ppc: Avoid AREG0 for timebase helpersBlue Swirl
Add an explicit CPUPPCState parameter instead of relying on AREG0. Signed-off-by: Blue Swirl <blauwirbel@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Alexander Graf <agraf@suse.de>
2012-06-24ppc: Split off timebase helpersBlue Swirl
Move decrementer and timebase helpers to a dedicated file. Signed-off-by: Blue Swirl <blauwirbel@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Alexander Graf <agraf@suse.de>
2012-06-24ppc: Cleanup MMU mergeBlue Swirl
Remove useless wrappers. In some cases 'int' parameters are changed to uint32_t. Make internal functions static. Signed-off-by: Blue Swirl <blauwirbel@gmail.com> [agraf: fix kvm compilation] Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Alexander Graf <agraf@suse.de>
2012-06-24ppc: Move MMU helpers from helper.c to mmu_helper.cBlue Swirl
Move more MMU helpers from helper.c to mmu_helper.c. Signed-off-by: Blue Swirl <blauwirbel@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Andreas Färber <afaerber@suse.de> [update to current helper.c state] Signed-off-by: Alexander Graf <agraf@suse.de>
2012-06-24ppc: Avoid a warning with the next patchBlue Swirl
When the code is moved together by the next patch, compiler detects a possible uninitialized variable use. Avoid the warning by initializing the variables. Signed-off-by: Blue Swirl <blauwirbel@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Alexander Graf <agraf@suse.de>
2012-06-24ppc: Avoid AREG0 for MMU etc. helpersBlue Swirl
Add an explicit CPUPPCState parameter instead of relying on AREG0. Signed-off-by: Blue Swirl <blauwirbel@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Alexander Graf <agraf@suse.de>
2012-06-24ppc: Split MMU etc. helpers from op_helper.cBlue Swirl
Move MMU, TLB, SLB and BAT ops to mmu_helper.c. Signed-off-by: Blue Swirl <blauwirbel@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Alexander Graf <agraf@suse.de>
2012-06-24ppc: Avoid AREG0 for integer and vector helpersBlue Swirl
Add an explicit CPUPPCState parameter instead of relying on AREG0. Signed-off-by: Blue Swirl <blauwirbel@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Andreas Färber <afaerber@suse.de> [fix unwanted whitespace line in Makefile.target] Signed-off-by: Alexander Graf <agraf@suse.de>
2012-06-24ppc: Split integer and vector opsBlue Swirl
Move integer and vector ops to int_helper.c. Signed-off-by: Blue Swirl <blauwirbel@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Alexander Graf <agraf@suse.de>
2012-06-24ppc: Avoid AREG0 for FPU and SPE helpersBlue Swirl
Add an explicit CPUPPCState parameter instead of relying on AREG0. Signed-off-by: Blue Swirl <blauwirbel@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Alexander Graf <agraf@suse.de>
2012-06-24ppc: Split FPU and SPE opsBlue Swirl
Move FPU and SPE helpers from op_helper.c to fpu_helper.c. Signed-off-by: Blue Swirl <blauwirbel@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Alexander Graf <agraf@suse.de>
2012-06-24ppc: Move exception helpers from helper.c to excp_helper.cBlue Swirl
Move exception helpers from helper.c to excp_helper.c and make cpu_dump_rfi() static. Signed-off-by: Blue Swirl <blauwirbel@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Alexander Graf <agraf@suse.de>
2012-06-24ppc: Fix coding style in helper.cBlue Swirl
helper.c will be spilt by the next patches, fix style issues before that. Signed-off-by: Blue Swirl <blauwirbel@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Alexander Graf <agraf@suse.de>
2012-06-24ppc: Avoid AREG0 for exception helpersBlue Swirl
Add an explicit CPUPPCState parameter instead of relying on AREG0. Signed-off-by: Blue Swirl <blauwirbel@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Alexander Graf <agraf@suse.de>
2012-06-24ppc: Split exception helpersBlue Swirl
Move exception helpers from op_helper.c to excp_helper.c. Signed-off-by: Blue Swirl <blauwirbel@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Alexander Graf <agraf@suse.de>
2012-06-24ppc: Fix coding style in op_helper.cBlue Swirl
op_helper.c will be split by the next patches, fix style issues before that. Signed-off-by: Blue Swirl <blauwirbel@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Alexander Graf <agraf@suse.de>
2012-06-24TCG: Fix compile breakage in tcg_dump_opsAlexander Graf
Commit eeacee4d865 changed the syntax of tcg_dump_ops, but didn't convert all users (notably missing the ppc ones) to it. Fix them to the new syntax. Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: malc <av1474@comtv.ru>
2012-06-21libcacard: build fixesBlue Swirl
Link trace objects to fix these errors: LINK vscclient oslib-posix.o: In function `trace_qemu_vfree': /src/qemu/obj-amd64/./trace.h:39: undefined reference to `trace1' oslib-posix.o: In function `trace_qemu_memalign': /src/qemu/obj-amd64/./trace.h:31: undefined reference to `trace3' oslib-posix.o: In function `trace_qemu_vmalloc': /src/qemu/obj-amd64/./trace.h:35: undefined reference to `trace2' Add LDFLAGS to vscclient link command. Clean up also in subdirectories of libcacard. Use quiet-command for sed invocation. Signed-off-by: Blue Swirl <blauwirbel@gmail.com> Reviewed-by: Andreas Färber <afaerber@suse.de> Acked-by: Alon Levy <alevy@redhat.com>
2012-06-21qtest: add a fuzz test to fdc-testBlue Swirl
Add a simple register fuzzing test to floppy controller tests. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-06-21fdc: use LOG_UNIMP loggingBlue Swirl
Convert uses of FLOPPY_ERROR to either FLOPPY_DPRINTF (for implemented cases) or to use LOG_UNIMP (unimplemented). Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-06-21qemu-log: use LOG_UNIMP for some target CPU casesBlue Swirl
Use LOG_UNIMP for some target CPU cases. Signed-off-by: Blue Swirl <blauwirbel@gmail.com> Acked-by: Alexander Graf <agraf@suse.de>
2012-06-21qemu-log: add log category for unimplemented functionalityBlue Swirl
Add new log category (LOG_UNIMP) for unimplemented functionality. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-06-21qemu-log: cleanupBlue Swirl
Don't use global variables directly but via accessor functions. Rename globals. Convert macros to functions, add GCC format attributes. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-06-21qemu-log: move logging to qemu-log.cBlue Swirl
Move logging functions from exec.c to qemu-log.c, compile it only once. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-06-21xilinx_timer: Fixed deadlock issuePeter A. G. Crosthwaite
The timer was deadlocking when the interval was set too low. It would cause a flood of timer events and the CPU would halt indefinately. This is a known issue and theres a generic workaround in place in ptimer on ptimer_set_limit(), however the Xilinx timer uses ptimer_set_count() instead of set_limit. Changed the call to set_count() to an equivalent call of set_limit() instead, which brings the workaround into play. Signed-off-by: Peter A. G. Crosthwaite <peter.crosthwaite@petalogix.com> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2012-06-21xilinx_timer: Removed include of qemu-timerPeter A. G. Crosthwaite
The Xilinx timer does not interact with the qemu_timer API, so dont include it. Signed-off-by: Peter A. G. Crosthwaite <peter.crosthwaite@petalogix.com> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2012-06-19Allow machines to configure the QEMU_VERSION that's exposed via hardwareCrístian Viana
QEMU exposes its version to the guest's hardware and in some cases that is wrong (e.g. Windows prints messages about driver updates when you switch the QEMU version). There is a new field now on the struct QEmuMachine, hw_version, which may contain the version that the specific machine should report. If that field is set, then that machine will report that version to the guest. Signed-off-by: Crístian Viana <vianac@linux.vnet.ibm.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-06-19Add PIIX4 properties to control PM system states.Gleb Natapov
This patch adds two things. First it allows QEMU to distinguish between regular powerdown and S4 powerdown. Later separate QMP notification will be added for S4 powerdown. Second it allows S3/S4 states to be disabled from QEMU command line. Some guests known to be broken with regards to power management, but allow to use it anyway. Using new properties management will be able to disable S3/S4 for such guests. Supported system state are passed to a firmware using new fw_cfg file. The file contains 6 byte array. Each byte represents one system state. If byte at offset X has its MSB set it means that system state X is supported and to enter it guest should use the value from lowest 3 bits. Signed-off-by: Gleb Natapov <gleb@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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