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| * | | target-ppc: Add xvxexpdp instructionNikunj A Dadhania2017-01-312-0/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | xvxexpdp: VSX Vector Extract Exponent Dual Precision Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
| * | | target-ppc: Add xvxexpsp instructionNikunj A Dadhania2017-01-312-0/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | xvxexpsp: VSX Vector Extract Exponent Single Precision Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
| * | | target-ppc: Add xviexpdp instructionNikunj A Dadhania2017-01-312-0/+27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | xviexpdp: VSX Vector Insert Exponent Dual Precision Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
| * | | target-ppc: Add xviexpsp instructionNikunj A Dadhania2017-01-312-0/+28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | xviexpsp: VSX Vector Insert Exponent Single Precision Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
| * | | target-ppc: Add xsiexpqp instructionNikunj A Dadhania2017-01-312-0/+23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | xsiexpqp: VSX Scalar Insert Exponent Quad Precision Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
| * | | target-ppc: Add xsiexpdp instructionNikunj A Dadhania2017-01-312-0/+21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | xsiexpdp: VSX Scalar Insert Exponent Double Precision Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
| * | | ppc: Implement bcdsr. instructionJose Ricardo Ziviani2017-01-314-0/+52
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | bcdsr.: Decimal shift and round. This instruction works like bcds. however, when performing right shift, 1 will be added to the result if the last digit was >= 5. Signed-off-by: Jose Ricardo Ziviani <joserz@linux.vnet.ibm.com> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
| * | | ppc: Implement bcdus. instructionJose Ricardo Ziviani2017-01-314-1/+46
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | bcdus.: Decimal unsigned shift. This instruction works like bcds. but considers only unsigned BCDs (no sign in least meaning 4 bits). Signed-off-by: Jose Ricardo Ziviani <joserz@linux.vnet.ibm.com> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
| * | | ppc: Implement bcds. instructionJose Ricardo Ziviani2017-01-314-1/+46
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | bcds.: Decimal shift. Given two registers vra and vrb, this instruction shift the vrb value by vra bits into the result register. Signed-off-by: Jose Ricardo Ziviani <joserz@linux.vnet.ibm.com> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
| * | | host-utils: Implement unsigned quadword left/right shift and unit testsJose Ricardo Ziviani2017-01-315-1/+235
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Implements 128-bit left shift and right shift as well as their testcases. By design, shift silently mods by 128, so the caller is responsible to assert the shift range if necessary. Left shift sets the overflow flag if any non-zero digit is shifted out. Examples: ulshift(&low, &high, 250, &overflow); equivalent: n << 122 urshift(&low, &high, -2); equivalent: n << 126 Signed-off-by: Jose Ricardo Ziviani <joserz@linux.vnet.ibm.com> Reviewed-by: Eric Blake <eblake@redhat.com> [dwg: Added test-shift128 to .gitignore] Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
| * | | host-utils: Move 128-bit guard macro to .c fileJose Ricardo Ziviani2017-01-312-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It is not possible to implement functions in host-utils.c for architectures with quadwords because the guard is implemented in the Makefile. This patch move the guard out of the Makefile to the implementation file. Signed-off-by: Jose Ricardo Ziviani <joserz@linux.vnet.ibm.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
| * | | softfloat: Fix the default qNAN for target-ppcBharata B Rao2017-01-311-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently float128_default_nan() returns 0xFFFF800000000000 in the higher double word, but it should return 0x7FFF800000000000 which is the correct higher double word for default qNAN on PowerPC. Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com> Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
| * | | target-ppc: xscvqpdp zero VSRNikunj A Dadhania2017-01-311-1/+1
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
| * | | ppc: Fix a warning in bcdcfz code and improve BCD_DIG_BYTE macroJose Ricardo Ziviani2017-01-311-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This commit fixes a warning in the code "(i * 2) ? .. : ..", which should be better as "i ? .. : ..", and improves the BCD_DIG_BYTE macro by placing parentheses around its argument to avoid possible expansion issues like: BCD_DIG_BYTE(i + j). Signed-off-by: Jose Ricardo Ziviani <joserz@linux.vnet.ibm.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
| * | | ppc: Prevent inifnite loop in decrementer auto-reload.Roman Kapl2017-01-311-2/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If the DECAR register is set to 0, QEMU tries to reload the decrementer with zero in an inifinite loop. According to PPC documentation, the decrementer is triggered on 1->0 transition, so avoid reloading the decrementer if if is already zero. The problem does not manifest under Linux, but it is valid to set DECAR to zero (and may make sense as part of decrementer initialization when interrupts are disabled). Signed-off-by: Roman Kapl <rka@sysgo.com> [dwg: Fixed style nit] Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
| * | | target-ppc: Add xscvqpdp instructionBharata B Rao2017-01-314-0/+31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | xscvqpdp: VSX Scalar round & Convert Quad-Precision format to Double-Precision format Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com> Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
| * | | target-ppc: Add xscvdpqp instructionBharata B Rao2017-01-314-0/+48
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | xscvdpqp: VSX Scalar Convert Double-Precision format to Quad-Precision format Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com> Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
| * | | target-ppc: Add xsaddqp instructionsBharata B Rao2017-01-315-0/+41
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | xsaddqp: VSX Scalar Add Quad-Precision Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com> Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
| * | | ppc: Add ppc_set_compat_all()David Gibson2017-01-313-26/+43
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Once a compatiblity mode is negotiated with the guest, h_client_architecture_support() uses run_on_cpu() to update each CPU to the new mode. We're going to want this logic somewhere else shortly, so make a helper function to do this global update. We put it in target-ppc/compat.c - it makes as much sense at the CPU level as it does at the machine level. We also move the cpu_synchronize_state() into ppc_set_compat(), since it doesn't really make any sense to call that without synchronizing state. Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
| * | | pseries: Rewrite CAS PVR compatibility logicDavid Gibson2017-01-312-72/+34Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | During boot, PAPR guests negotiate CPU model support with the ibm,client-architecture-support mechanism. The logic to implement this in qemu is very convoluted. This cleans it up to be cleaner, using the new ppc_check_compat() call. The new logic for choosing a compatibility mode is: 1. Usually, use the most recent compatibility mode that is a) supported by the guest b) supported by the CPU and c) no later than the maximum allowed (if specified) 2. If no suitable compatibility mode was found, the guest *does* support this CPU explicitly, and no maximum compatibility mode is specified, then use "raw" mode for the current CPU 3. Otherwise, fail the boot. This differs from the results of the old code: the old code preferred using "raw" mode to a compatibility mode, whereas the new code prefers a compatibility mode if available. Using compatibility mode preferentially means that we're more likely to be able to migrate the guest to a similar but not identical host. Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
| * | | pxb: Restrict to x86David Gibson2017-01-313-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The PCI Expander Bridge (PXB) device is essentially a hack to allow different PCIe devices to be assigned to different NUMA nodes on x86. Each PXB is sort-of a separate PCI host bridge, except that its config space is shared with the config space of the main PCI host bridge, rather than being independent. This is only necessary if the platform doesn't (easily) allow truly independent PCI host bridges. AFAIK that's just x86. This patch makes it possible to configure PXB out of the build, and adjusts the default configs so it's only included on x86 targets. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Acked-by: Michael S. Tsirkin <mst@redhat.com>
| * | | target-ppc: Add xsxsigqp instructionsNikunj A Dadhania2017-01-312-0/+30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | xsxsigqp: VSX Scalar Extract Significand Quad Precision Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
| * | | target-ppc: Add xsxsigdp instructionNikunj A Dadhania2017-01-312-0/+30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | xsxsigdp: VSX Scalar Extract Significand Dual Precision Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
| * | | target-ppc: Add xsxexpqp instructionNikunj A Dadhania2017-01-312-0/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | xsxexpqp: VSX Scalar Extract Exponent Quad Precision Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
| * | | target-ppc: Add xsxexpdp instructionNikunj A Dadhania2017-01-312-0/+17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | xsxexpdp: VSX Scalar Extract Exponent Dual Precision Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
| * | | target-ppc: Use correct precision for FPRF settingBharata B Rao2017-01-312-2/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use correct FP precision when setting FPRF in FP conversion helpers instead of always assuming float64 precision. Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com> Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
| * | | target-ppc: Add xscvdphp, xscvhpdpBharata B Rao2017-01-316-0/+62
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | xscvdphp: VSX Scalar round & Convert Double-Precision format to Half-Precision format xscvhpdp: VSX Scalar Convert Half-Precision format to Double-Precision format Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com> Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
| * | | target-ppc: Rename helper_compute_fprf to helper_compute_fprf_float64Bharata B Rao2017-01-313-70/+73
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Since helper_compute_fprf() works on float64 argument, rename it to helper_compute_fprf_float64(). Also use a macro to generate helper_compute_fprf_float64() so that float128 version of the same helper can be introduced easily later. Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com> Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
| * | | target-ppc: Replace isden by float64_is_zero_or_denormalBharata B Rao2017-01-311-10/+1Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Replace isden() by float64_is_zero_or_denormal() so that code in helper_compute_fprf() can be reused to work with float128 argument. Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com> Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com> Reviewed-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
| * | | target-ppc: Use float64 arg in helper_compute_fprf()Bharata B Rao2017-01-311-9/+7Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use float64 argument instead of unit64_t in helper_compute_fprf() This allows code in helper_compute_fprf() to be reused later to work with float128 argument too. Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com> Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
| * | | prep: add IBM RS/6000 7020 (40p) machine emulationHervé Poussineau2017-01-312-0/+231
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Machine supports both Open Hack'Ware and OpenBIOS. Open Hack'Ware is the default because OpenBIOS is currently unable to boot PReP boot partitions or PReP kernels. Signed-off-by: Hervé Poussineau <hpoussin@reactos.org> [dwg: Correct compile failure with KVM located by Thomas Huth] Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
| * | | prep: add IBM RS/6000 7020 (40p) memory controllerHervé Poussineau2017-01-315-0/+242
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Hervé Poussineau <hpoussin@reactos.org> Reviewed-by: David Gibson <david@gibson.dropbear.id.au> [dwg: Added CONFIG_RS6000_MC to ppc64 or it breaks testcases] Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
| * | | prep: add PReP System I/OHervé Poussineau2017-01-313-0/+308
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This device is a partial duplicate of System I/O device available in hw/ppc/prep.c This new one doesn't have all the Motorola-specific registers. The old one should be deprecated and removed with the 'prep' machine. Partial documentation available at ftp://ftp.software.ibm.com/rs6000/technology/spec/srp1_1.exe section 6.1.5 (I/O Device Mapping) Signed-off-by: Hervé Poussineau <hpoussin@reactos.org> Reviewed-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
| * | | target-ppc: Add xxinsertw instructionNikunj A Dadhania2017-01-314-2/+30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | xxinsertw: VSX Vector Insert Word Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
| * | | target-ppc: Add xxextractuw instructionNikunj A Dadhania2017-01-314-0/+62
| | | | | | | | | | | | | | | | | | | | | | | | | | | | xxextractuw: VSX Vector Extract Unsigned Word Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
| * | | hw/ppc: QOM'ify spapr_vio.cxiaoqiang zhao2017-01-311-10/+0Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Drop the old and empty SysBus init Signed-off-by: xiaoqiang zhao <zxq_yx_007@163.com> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
| * | | hw/ppc: QOM'ify ppce500_spin.cxiaoqiang zhao2017-01-311-10/+8Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Drop the old SysBus init function and use instance_init Signed-off-by: xiaoqiang zhao <zxq_yx_007@163.com> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
| * | | hw/ppc: QOM'ify e500.cxiaoqiang zhao2017-01-311-13/+4Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Drop the old SysBus init function and use instance_init Signed-off-by: xiaoqiang zhao <zxq_yx_007@163.com> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
| * | | hw/gpio: QOM'ify mpc8xxx.cxiaoqiang zhao2017-01-311-9/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * Drop the old SysBus init function and use instance_init * Change mpc8xxx_gpio_reset to a DeviceClass::reset function Signed-off-by: xiaoqiang zhao <zxq_yx_007@163.com> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
| * | | qtest: add ivshmem-test for ppc64Laurent Vivier2017-01-312-5/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The test has been converted to use libqos, we can now use it on ppc64. We also make the test fail on all other architectures. As libqos on ppc64 is not able to manage hotplug and IRQ/MSI, we disable this part in the test on ppc64. Signed-off-by: Laurent Vivier <lvivier@redhat.com> [dwg: Make test conditional on CONFIG_EVENTFD] Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
| * | | qtest: convert ivshmem-test to use libqosLaurent Vivier2017-01-311-14/+17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | This will allow to use it with ppc64. Signed-off-by: Laurent Vivier <lvivier@redhat.com> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
| * | | libqos: fix spapr qpci_map()Laurent Vivier2017-01-311-2/+2
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Laurent Vivier <lvivier@redhat.com> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
| * | | qtest: add display-vga-test to ppc64Laurent Vivier2017-01-312-1/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Only enable for ppc64 in the Makefile, but added code in the file to check cirrus card only on architectures supporting it (alpha, mips, i386, x86_64). Signed-off-by: Laurent Vivier <lvivier@redhat.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Reviewed-by: Greg Kurz <groug@kaod.org> Tested-by: Greg Kurz <groug@kaod.org> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
| * | | qtest: add netfilter tests for ppc64Laurent Vivier2017-01-311-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Laurent Vivier <lvivier@redhat.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Reviewed-by: Greg Kurz <groug@kaod.org> Tested-by: Greg Kurz <groug@kaod.org> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
| * | | ppc: Validate compatibility modes when settingDavid Gibson2017-01-312-0/+43
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Current ppc_set_compat() will attempt to set any compatiblity mode specified, regardless of whether it's available on the CPU. The caller is expected to make sure it is setting a possible mode, which is awkwward because most of the information to make that decision is at the CPU level. This begins to clean this up by introducing a ppc_check_compat() function which will determine if a given compatiblity mode is supported on a CPU (and also whether it lies within specified minimum and maximum compat levels, which will be useful later). It also contains an assertion that the CPU has a "virtual hypervisor"[1], that is, that the guest isn't permitted to execute hypervisor privilege code. Without that, the guest would own the PCR and so could override any mode set here. Only machine types which use a virtual hypervisor (i.e. 'pseries') should use ppc_check_compat(). ppc_set_compat() is modified to validate the compatibility mode it is given and fail if it's not available on this CPU. [1] Or user-only mode, which also obviously doesn't allow access to the hypervisor privileged PCR. We don't use that now, but could in future. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Reviewed-by: Alexey Kardashevskiy <aik@ozlabs.ru>
| * | | ppc: Rewrite ppc_get_compat_smt_threads()David Gibson2017-01-314-25/+23Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | To continue consolidation of compatibility mode information, this rewrites the ppc_get_compat_smt_threads() function using the table of compatiblity modes in target-ppc/compat.c. It's not a direct replacement, the new ppc_compat_max_threads() function has simpler semantics - it just returns the number of threads the cpu model has, taking into account any compatiblity mode it is in. This no longer takes into account kvmppc_smt_threads() as the previous version did. That check wasn't useful because we check in ppc_cpu_realizefn() that CPUs aren't instantiated with more threads than kvm allows (or if we didn't things will already be broken and this won't make it any worse). Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Reviewed-by: Alexey Kardashevskiy <aik@ozlabs.ru>
| * | | ppc: Rewrite ppc_set_compat()David Gibson2017-01-314-43/+97
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This rewrites the ppc_set_compat() function so that instead of open coding the various compatibility modes, it reads the relevant data from a table. This is a first step in consolidating the information on compatibility modes scattered across the code into a single place. It also makes one change to the logic. The old code masked the bits to be set in the PCR (Processor Compatibility Register) by which bits are valid on the host CPU. This made no sense, since it was done regardless of whether our guest CPU was the same as the host CPU or not. Furthermore, the actual PCR bits are only relevant for TCG[1] - KVM instead uses the compatibility mode we tell it in kvmppc_set_compat(). When using TCG host cpu information usually isn't even present. While we're at it, we put the new implementation in a new file to make the enormous translate_init.c a little smaller. [1] Actually it doesn't even do anything in TCG, but it will if / when we get to implementing compatibility mode logic at that level. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Reviewed-by: Alexey Kardashevskiy <aik@ozlabs.ru>
| * | | pseries: Add pseries-2.9 machine typeDavid Gibson2017-01-311-2/+21
| | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Reviewed-by: Thomas Huth <thuth@redhat.com> Reviewed-by: Laurent Vivier <lvivier@redhat.com>
| * | | prep: do not use global variable to access nvramHervé Poussineau2017-01-311-2/+2
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Hervé Poussineau <hpoussin@reactos.org> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
| * | | hw/ppc/spapr: Fix boot path of usb-host storage devicesThomas Huth2017-01-314-0/+48
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When passing through an USB storage device to a pseries guest, it is currently not possible to automatically boot from the device if the "bootindex" property has been specified, too (e.g. when using "-device nec-usb-xhci -device usb-host,hostbus=1,hostaddr=2,bootindex=0" at the command line). The problem is that QEMU builds a device tree path like "/pci@800000020000000/usb@0/usb-host@1" and passes it to SLOF in the /chosen/qemu,boot-list property. SLOF, however, probes the USB device, recognizes that it is a storage device and thus changes its name to "storage", and additionally adds a child node for the SCSI LUN, so the correct boot path in SLOF is something like "/pci@800000020000000/usb@0/storage@1/disk@101000000000000" instead. So when we detect an USB mass storage device with SCSI interface, we've got to adjust the firmware boot-device path properly that SLOF can automatically boot from the device. Buglink: https://bugzilla.redhat.com/show_bug.cgi?id=1354177 Signed-off-by: Thomas Huth <thuth@redhat.com> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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