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2014-06-16target-ppc: Introduce DFP Test Data GroupTom Musta
Add emulation of the PowerPC Decimal Floating Point Test Data Group instructions dtstdg[q][.]. Signed-off-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-16target-ppc: Introduce DFP Test Data ClassTom Musta
Add emulation of the PowerPC Decimal Floating Point Test Data Class instructions dtstdc[q][.]. Signed-off-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-16target-ppc: Introduce DFP ComparesTom Musta
Add emulation of the PowerPC Decimal Floating Point Compare instructions dcmpu[q] and dcmpo[q]. Signed-off-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-16target-ppc: Introduce DFP DivideTom Musta
Add emulation of the PowerPC Decimal Floating Point Divide instructions ddiv[q][.] Signed-off-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-16target-ppc: Introduce DFP MultiplyTom Musta
Add emulation of the PowerPC Decimal Floating Point Multiply instructions dmul[q][.] Signed-off-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-16target-ppc: Introduce DFP SubtractTom Musta
Add emulation of the PowerPC Decimal Floating Point Subtract instructions dsub[q][.] Signed-off-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-16target-ppc: Introduce DFP AddTom Musta
Add emulation of the PowerPC Decimal Floating Point Add instructions dadd[q][.] Various GCC unused annotations are removed since it is now safe to remove them. Signed-off-by: Tom Musta <tommusta@gmail.com> [agraf: move brace in function definition] Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-16target-ppc: Introduce DFP Post Processor UtilitiesTom Musta
Add post-processing utilities to the PowerPC Decimal Floating Point (DFP) helper code. Post-processors are small routines that execute after a preliminary DFP result is computed. They are used, among other things, to compute status bits. This change defines a function type for post processors as well as a generic routine to run a list (array) of post-processors. Actual post-processor implementations will be added as needed by specific DFP helpers in subsequent changes. Some routines are annotated with the GCC unused attribute in order to preserve build bisection. The annotation will be removed in subsequent patches. Signed-off-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-16target-ppc: Introduce DFP Helper UtilitiesTom Musta
Add a new file (dfp_helper.c) to the PowerPC implementation for Decimal Floating Point (DFP) emulation. This first version of the file declares a structure that will be used by DFP helpers. It also implements utilities that will initialize such a structure for either a long (64 bit) DFP instruction or an extended (128 bit, aka "quad") instruction. Some utility functions are annotated with the unused attribute in order to preserve build bisection. Signed-off-by: Tom Musta <tommusta@gmail.com> [agraf: Add never reached assert on dfp_prepare_rounding_mode()] Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-16target-ppc: Introduce Decoder Macros for DFPTom Musta
Add decoder macros for the various Decimal Floating Point instruction forms. Illegal instruction masks are used to not only guard against reserved instruction field use, but also to catch illegal quad word forms that use odd-numbered floating point registers. Signed-off-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-16target-ppc: Introduce Generator Macros for DFP Arithmetic FormsTom Musta
Add general support for generators of PowerPC Decimal Floating Point helpers. Some utilities are annotated with GCC attribute unused in order to preserve build bisection. These annotations will be removed in later patches. Signed-off-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-16target-ppc: Define FPR Pointer Type for HelpersTom Musta
Define a floating pointer register pointer type in the PowerPC helper header. The type will be used to pass FPR register operands to Decimal Floating Point (DFP) helpers. A pointer is used because the quad word forms of PowerPC DFP instructions operate on adjacent pairs of floating point registers and thus can be thought of as arrays of length 2. Signed-off-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-16libdecnumber: Fix decNumberSetBCDTom Musta
Fix a simple bug in the decNumberSetBCD() function. This function encodes a decNumber with "n" BCD digits. The original code erroneously computed the number of declets from the dn argument, which is the output decNumber value, and hence may contain garbage. Instead, the input "n" value is used. Signed-off-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-16libdecnumber: Introduce decNumberIntegralToInt64Tom Musta
Introduce a new conversion function to the libdecnumber library. This function converts a decNumber to a signed 64-bit integer. In order to support 64-bit integers (which may have up to 19 decimal digits), the existing "powers of 10" array is expanded from 10 to 19 entries. Signed-off-by: Tom Musta <tommusta@gmail.com> [agraf: fix 32bit host compile] Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-16libdecnumber: Introduce decNumberFrom[U]Int64Tom Musta
Introduce two conversion functions to the libdecnumber library. These conversions transform 64 bit integers to the internal decNumber representation. Both a signed and unsigned version is added. Signed-off-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-16target-ppc: Enable Building of libdecnumberTom Musta
Enable compilation of the newly added libdecnumber library code. Object file targets are added to Makefile.target using a newly introduced flag CONFIG_LIBDECNUMBER. The flag is added to the PowerPC targets (ppc[64]-linux-user, ppc[64]-softmmu). Signed-off-by: Tom Musta <tommusta@gmail.com> [agraf: add ppcemb and ppc64abi32 config] Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-16libdecnumber: Eliminate Unused Variable in decSetSubnormalTom Musta
Eliminate an unused variable in the decSetSubnormal routine. The variable dnexp is declared and eventually set but never used, and thus may trigger an unused-but-set-variable warning. Signed-off-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-16libdecnumber: Eliminate redundant declarationsTom Musta
Eliminate redundant declarations of symbols DPD2BIN and BIN2DPD in various .c source files. These symbols are already declared in decDPD.h and thus will trigger 'redundant redeclaration of ?XXX?' warnings, which, of course, may fail QEMU compilation. Signed-off-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-16libdecnumber: Change gstdint.h to stdint.hTom Musta
Replace the inclusion of gstdint.h with the standard stdint.h header file. Signed-off-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-16libdecnumber: Modify dconfig.h to Integrate with QEMUTom Musta
Modify the dconfig.h header file so that libdecnumber code integrates QEMU configuration. Specifically: - the WORDS_BIGENDIAN preprocessor macro is used in libdecnumber code to determines endianness. It is derived from the existing QEMU macro HOST_WORDS_BIGENDIAN which is defined in config-host.h. - the DECPUN macro determines the number of decimal digits (aka declets) per unit (byte). This is 3 for PowerPC DFP. Signed-off-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-16libdecnumber: Prepare libdecnumber for QEMU include structureTom Musta
Consistent with other libraries in QEMU, the libdecnumber header files were placed in include/libdecnumber, separate from the C code. This is different from the original libdecnumber source, where they were co-located. Change the libdecnumber source code so that it reflects this split. Specifically, modify directives of the form: #include "xxx.h" to look like: #include "libdecnumber/xxx.h" Signed-off-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-16libdecnumber: Eliminate #include *Symbols.hTom Musta
The various *Symbols.h files were not copied from the original GCC libdecnumber library; they are not necessary for use in QEMU. Remove all instances of #include "*Symbols.h" Signed-off-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-16libdecnumber: Introduce libdecnumber CodeTom Musta
Add files from the libdecnumber decimal floating point library to QEMU. The libdecnumber library was originally part of GCC and contains code that is useful in emulating the PowerPC decimal floating point (DFP) instructions. This particular copy of the source comes from GCC 4.3 and is licensed at GPLv2+. Signed-off-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-16mac99: Added FW_CFG_PPC_BUSFREQ to match CLOCKFREQ and TBFREQ already thereBALATON Zoltan
While there, also moved the hard coded value for CLOCKFREQ to a #define. Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu> Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-16target-ppc: Remove PVR check from migrationAlexey Kardashevskiy
Currently migration fails if CPU version (PVR register) is different even a bit. This check is performed at the very end of migration when device states are sent. This is too late for management software and we need to provide a way for the user to make sure that migration will succeed if QEMU is started with appropritate command line parameters. This removes the PVR check. This resets PVR to the default value as the existing VMSTATE record for SPR array sends all 1024 registers unconditionally and overwrites the destination PVR. If the user wants some guarantees for migration to succeed, then a CPU name or "host" CPU with a "compat" option (on its way to upsteam) should be used and KVM or TCG is expected to fail on unsupported values at the moment of QEMU start. Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru> Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-16target-ppc: Eliminate Magic Number MSR MasksTom Musta
Use MSR mnemonics from cpu.h instead of magic numbers for the CPUPPCState.msr_mask initialization. There is one bit in the 401x2 (and subsequent) model that I could not find any documentation for. It is open coded at little endian bit position 20: pcc->msr_mask = (1ull << 20) | (1ull << MSR_KEY) | (1ull << MSR_POW) | (1ull << MSR_CE) | ... Signed-off-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-16spapr_pci: Fix number of returned vectors in ibm, change-msiAlexey Kardashevskiy
Current guest kernels try allocating as many vectors as the quota is. For example, in the case of virtio-net (which has just 3 vectors) the guest requests 4 vectors (that is the quota in the test) and the existing ibm,change-msi handler returns 4. But before it returns, it calls msix_set_message() in a loop and corrupts memory behind the end of msix_table. This limits the number of vectors returned by ibm,change-msi to the maximum supported by the actual device. Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru> Cc: qemu-stable@nongnu.org [agraf: squash in bugfix from aik] Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-16spapr-pci: remove io ports workaroundGreg Kurz
In the past, IO space could not be mapped into the memory address space so we introduced a workaround for that. Nowadays it does not look necessary so we can remove the workaround and make sPAPR PCI configuration simplier. Signed-off-by: Greg Kurz <gkurz@linux.vnet.ibm.com> Acked-by: Alexey Kardashevskiy <aik@ozlabs.ru> Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-16target-ppc: Remove redundant POWER7 declarationsAlexey Kardashevskiy
At the moment there are 3 versions of POWER7 CPUs defined. However we do not emulate these CPUs diffent and it does not make much sense to keep them all. This removes POWER7_v2.0 and POWER7_v2.1 and leaves just one versioned CPU per family which is POWER7_v2.3 with POWER7 alias. Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru> Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-16target-ppc: Move alias lookup after class lookupAlexey Kardashevskiy
This moves aliases lookup after CPU class lookup. This is to let new generic CPU to be found first if it is present and only if it is not (TCG case), use aliases. Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru> Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-16target-ppc: Create versionless CPU class per family if KVMAlexey Kardashevskiy
At the moment generic version-less CPUs are supported via hardcoded aliases. For example, POWER7 is an alias for POWER7_v2.1. So when QEMU is started with -cpu POWER7, the POWER7_v2.1 class instance is created. This approach works for TCG and KVMs other than HV KVM. HV KVM cannot emulate PVR value so the guest always sees the real PVR. HV KVM will not allow setting PVR other that the host PVR because of that (the kernel patch for it is on its way). So in most cases it is impossible to run QEMU with -cpu POWER7 unless the host PVR is exactly the same as the one from the alias (which is now POWER7_v2.3). It was decided that under HV KVM QEMU should use -cpu host. Using "host" CPU type creates a problem for management tools such as libvirt because they want to know in advance if the destination guest can possibly run on the destination. Since the "host" type is really not a type and will always work with any KVM, there is no way for libvirt to know if the migration will success. This registers additional CPU class derived from the host CPU family. The name for it is taken from @desc field of the CPU family class. Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru> Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-16target-ppc: gdbstub allow byte swapping for reading/writing registersThomas Falcon
This patch allows registers to be properly read from and written to when using the gdbstub to debug a ppc guest running in little endian mode. Reviewed-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Thomas Falcon <tlfalcon@linux.vnet.ibm.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-16target-ppc: extract register length calculation in gdbstubThomas Falcon
This patch extracts the method to determine a register's size into a separate function. Reviewed-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Thomas Falcon <tlfalcon@linux.vnet.ibm.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-16spapr_nvram: Correct max nvram sizeAlexey Kardashevskiy
Currently it is UINT16_MAX*16 = 65536*16 = 1048560 which is not a round number and therefore a bit confusing. This defines MAX_NVRAM_SIZE precisely as 1MB. Suggested-by: Thomas Huth <thuth@linux.vnet.ibm.com> Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru> Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-16Fix typo in eTSEC Ethernet controllerFabien Chouteau
IRQ are lowered when ievent bit is cleared, so irq_pulse makes no sense here... Signed-off-by: Fabien Chouteau <chouteau@adacore.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-16monitor: QEMU Monitor Instruction Disassembly Incorrect for PowerPC LE ModeTom Musta
The monitor support for disassembling instructions does not honor the MSR[LE] bit for PowerPC processors. This change enhances the monitor_disas() routine by supporting a flag bit for Little Endian mode. Bit 16 is used since that bit was used in the analagous guest disassembly routine target_disas(). Also, to be consistent with target_disas(), the disassembler bfd_mach field can be passed in the flags argument. Reported-by: Anton Blanchard <anton@samba.org> Signed-off-by: Tom Musta <tommusta@gmail.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-16target-ppc: Fix target_disasTom Musta
Inspect only bit 16 for the Little Endian test. Correct comment preceding the target_disas() function. Correct grammar in comment for flags processing. Signed-off-by: Tom Musta <tommusta@gmail.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-16Merge remote-tracking branch 'remotes/juanquintela/tags/migration/20140616' ↵Peter Maydell
into staging migration/next for 20140616 # gpg: Signature made Mon 16 Jun 2014 04:10:18 BST using RSA key ID 5872D723 # gpg: Can't check signature: public key not found * remotes/juanquintela/tags/migration/20140616: migration: catch unknown flags in ram_load rdma: Fix block during rdma migration migration: Increase default max_downtime from 30ms to 300ms vmstate: Refactor opening of files savevm: Remove all the unneeded version_minimum_id_old (x86) savevm: Remove all the unneeded version_minimum_id_old (ppc) Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-06-16migration: catch unknown flags in ram_loadPeter Lieven
if a saved vm has unknown flags in the memory data qemu currently simply ignores this flag and continues which yields in an unpredictable result. This patch catches all unknown flags and aborts the loading of the vm. Additionally error reports are thrown if the migration aborts abnormally. Signed-off-by: Peter Lieven <pl@kamp.de> Signed-off-by: Juan Quintela <quintela@redhat.com>
2014-06-16rdma: Fix block during rdma migrationGonglei
If the networking break or there's something wrong with rdma device(ib0 with no IP) during rdma migration, the main_loop of qemu will be blocked in rdma_destroy_id. I add rdma_ack_cm_event to fix this bug. Signed-off-by: Mo Yuxiang <Moyuxiang@huawei.com> Signed-off-by: Gonglei <arei.gonglei@huawei.com> Reviewed-by: Michael R. Hines <mrhines@us.ibm.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
2014-06-16migration: Increase default max_downtime from 30ms to 300msAlexey Kardashevskiy
The existing timeout is 30ms which on 100MB/s (1Gbit) gives us 3MB/s rate maximum. If we put some load on the guest, it is easy to get page dirtying rate too big so live migration will never complete. In the case of libvirt that means that the guest will be stopped anyway after a timeout specified in the "virsh migrate" command and this normally generates even bigger delay. This changes max_downtime to 300ms which seems to be more reasonable value. Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru> Signed-off-by: Juan Quintela <quintela@redhat.com>
2014-06-16vmstate: Refactor opening of filesJuan Quintela
Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Amit Shah <amit.shah@redhat.com>
2014-06-16savevm: Remove all the unneeded version_minimum_id_old (x86)Juan Quintela
After previous Peter patch, they are redundant. This way we don't assign them except when needed. Once there, there were lots of case where the ".fields" indentation was wrong: .fields = (VMStateField []) { and .fields = (VMStateField []) { Change all the combinations to: .fields = (VMStateField[]){ The biggest problem (appart from aesthetics) was that checkpatch complained when we copy&pasted the code from one place to another. Signed-off-by: Juan Quintela <quintela@redhat.com> Acked-by: Alexey Kardashevskiy <aik@ozlabs.ru> Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
2014-06-16savevm: Remove all the unneeded version_minimum_id_old (ppc)Juan Quintela
After previous Peter patch, they are redundant. This way we don't assign them except when needed. Once there, there were lots of case where the ".fields" indentation was wrong: .fields = (VMStateField []) { and .fields = (VMStateField []) { Change all the combinations to: .fields = (VMStateField[]){ The biggest problem (appart from aesthetics) was that checkpatch complained when we copy&pasted the code from one place to another. Signed-off-by: Juan Quintela <quintela@redhat.com> Acked-by: Alexey Kardashevskiy <aik@ozlabs.ru>
2014-06-13Merge remote-tracking branch 'remotes/kraxel/tags/pull-usb-20140613-1' into ↵Peter Maydell
staging usb-host: add range checks for usb-host parameters # gpg: Signature made Fri 13 Jun 2014 12:33:05 BST using RSA key ID D3E87138 # gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>" # gpg: aka "Gerd Hoffmann <gerd@kraxel.org>" # gpg: aka "Gerd Hoffmann (private) <kraxel@gmail.com>" * remotes/kraxel/tags/pull-usb-20140613-1: usb-host: add range checks for usb-host parameters Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-06-13Merge remote-tracking branch 'remotes/kraxel/tags/pull-trivial-20140613-1' ↵Peter Maydell
into staging inet_listen_opts: add error checking # gpg: Signature made Fri 13 Jun 2014 12:29:43 BST using RSA key ID D3E87138 # gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>" # gpg: aka "Gerd Hoffmann <gerd@kraxel.org>" # gpg: aka "Gerd Hoffmann (private) <kraxel@gmail.com>" * remotes/kraxel/tags/pull-trivial-20140613-1: inet_listen_opts: add error checking Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-06-13Merge remote-tracking branch 'remotes/spice/tags/pull-spice-20140613-1' into ↵Peter Maydell
staging spice: add mouse cursor support qxl-render: add sanity check # gpg: Signature made Fri 13 Jun 2014 12:22:45 BST using RSA key ID D3E87138 # gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>" # gpg: aka "Gerd Hoffmann <gerd@kraxel.org>" # gpg: aka "Gerd Hoffmann (private) <kraxel@gmail.com>" * remotes/spice/tags/pull-spice-20140613-1: qxl-render: add sanity check spice: add mouse cursor support Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-06-13Merge remote-tracking branch 'remotes/kraxel/tags/pull-chardev-20140613-1' ↵Peter Maydell
into staging char: fix avail_connections init in qemu_chr_open_eventfd() # gpg: Signature made Fri 13 Jun 2014 12:16:50 BST using RSA key ID D3E87138 # gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>" # gpg: aka "Gerd Hoffmann <gerd@kraxel.org>" # gpg: aka "Gerd Hoffmann (private) <kraxel@gmail.com>" * remotes/kraxel/tags/pull-chardev-20140613-1: char: fix avail_connections init in qemu_chr_open_eventfd() Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-06-13Merge remote-tracking branch 'remotes/kraxel/tags/pull-audio-20140613-1' ↵Peter Maydell
into staging audio: Drop superfluous conditionals around g_free() # gpg: Signature made Fri 13 Jun 2014 12:14:24 BST using RSA key ID D3E87138 # gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>" # gpg: aka "Gerd Hoffmann <gerd@kraxel.org>" # gpg: aka "Gerd Hoffmann (private) <kraxel@gmail.com>" * remotes/kraxel/tags/pull-audio-20140613-1: audio: Drop superfluous conditionals around g_free() Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-06-13usb-host: add range checks for usb-host parametersGerd Hoffmann
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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