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| * | | memory: use 128-bit integers for sizes and intermediatesAvi Kivity2011-10-162-81/+115
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Since the memory API supports 64-bit buses, it needs a larger type to represent intermediate results. Signed-off-by: Avi Kivity <avi@redhat.com>
| * | | Add support for 128-bit arithmeticAvi Kivity2011-10-161-0/+116
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The memory API supports 64-bit buses (e.g. PCI). A size on such a bus cannot be represented with a 64-bit data type, if both 0 and the entire address space size are to be represented. Futhermore, any address arithemetic may overflow and return unexpected results. Introduce a 128-bit signed integer type for use in such cases. Addition, subtraction, and comparison are the only operations supported. Signed-off-by: Avi Kivity <avi@redhat.com>
* | | | Fix X86 CPU topology in KVM modeBharata B Rao2011-11-022-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | apic id returned to guest kernel in ebx for cpuid(function=1) depends on CPUX86State->cpuid_apic_id which gets populated after the cpuid information is cached in the host kernel. This results in broken CPU topology in guest. Fix this by setting cpuid_apic_id before cpuid information is passed to the host kernel. This is done by moving the setting of cpuid_apic_id to cpu_x86_init() where it will work for both KVM as well as TCG modes. Acked-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Bharata B Rao <bharata.rao@gmail.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
* | | | intel-hda: fix stream searchGerd Hoffmann2011-11-021-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | commit ba43d28916c4f51c19bd7366089155ce81bee058 introduces a bug: The stream-not-found case doesn't error out any more, instead the code silently uses the first stream. Fix it. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
* | | | virtio-blk: pass full status to the guestPaolo Bonzini2011-11-021-1/+15
| |/ / |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When SCSI passthrough is being used by the guest with virtio-blk, the guest is not able to detect disk failures. This is because the status field is expected by the guest driver to include also the msg_status, host_status and driver_status fields, but the device is only passing down the SCSI status. The patch fixes this, and also makes sure that the guest always sees a CHECK_CONDITION status when there is valid sense data. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
* | | Bump version to 1.0-rc0Anthony Liguori2011-11-011-1/+1
| | | | | | | | | | | | | | | | | | Look out 1.0, here we come! Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
* | | Revert "virtio: Add PCI memory BAR in addition to PIO BAR"Anthony Liguori2011-11-011-2/+0
| | | | | | | | | | | | This reverts commit 46d95bfec7f9429d5228078219413d7e33496d65.
* | | Merge remote-tracking branch 'afaerber/cocoa-for-upstream' into stagingAnthony Liguori2011-11-013-1/+10
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| * | | cocoa: Close sheet after image file selectionAndreas Färber2011-11-011-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If no disk image is specified, the Cocoa frontend displays a modal sheet to let the user select an image file to boot from. This sheet is never closed and it permanently obscures the emulator window. Close it after obtaining the file name in case the user did select a file. Otherwise we exit immediately, so no need to close then. Signed-off-by: Juan Pineda <juan@logician.com> Signed-off-by: Andreas Färber <andreas.faerber@web.de>
| * | | vl.c: Guard against GThread double-initializationAndreas Färber2011-11-011-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | GThread-ERROR **: GThread system may only be initialized once. aborting... Making the g_thread_init() call in vl.c conditional resolves an abort on Mac OS X, where coroutine-gthread.c seems to call it before vl.c. Reported-by: Juan Pineda <juan@logician.com> Signed-off-by: Andreas Färber <andreas.faerber@web.de> Cc: Daniel P. Berrange <berrange@redhat.com>
| * | | MAINTAINERS: Add Cocoa maintainerAndreas Färber2011-11-011-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Degrade cocoa.m from Maintained to Odd Fixes. Signed-off-by: Andreas Färber <andreas.faerber@web.de> Cc: Anthony Liguori <aliguori@us.ibm.com>
* | | | Merge branch 'master' of git://git.qemu.org/qemumalc2011-11-0234-282/+451
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| * | | | pcnet: Add link state supportJan Kiszka2011-11-014-0/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Update lnkst on link state changes so that guests can obtain this information via reading back the LED output pin. Works for Linux but not for guests that depend on the missing PHY. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
| * | | | pcnet-pci: Fix PIO word access to PROMJan Kiszka2011-11-011-12/+36
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Implement the various IO access widths according to the spec. This specifically unbreaks word and dword access to the PROM area that is mapped into IO space. It also drops redundant upper limit checks and spurious "return void". Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
| * | | | pcnet: Move BCR defines to headerJan Kiszka2011-11-013-20/+21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This moves BCR defines to the common header and immediately makes use of them to add BCR_APROMWE, replacing the open-coded write check in pcnet_aprom_writeb. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
| * | | | Sort the help info shown in monitor at runtimeWayne Xia2011-11-011-4/+26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch would try sort the command list in monitor at runtime. As a result, command help and help info would show a more friendly sorted command list. For eg: (qemu)help acl_add acl_policy acl_remove acl_reset acl_show balloon block_passwd ... the command list is sorted. v3: using qsort function to sort the command list. Tested-by: Wenyi Gao <wenyi@linux.vnet.ibm.com> Signed-off-by: Wayne Xia <xiawenc@linux.vnet.ibm.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
| * | | | event_notifier: move to top-level directoryAvi Kivity2011-11-012-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Has no business in hw/. Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
| * | | | Move filedescriptor parsing code from net.c into qemu_parse_fd()Stefan Berger2011-11-013-6/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Move the parsing of a filedescriptor into a common function qemu_parse_fd() so others can use it as well. Have net.c call this function. v2: - moving qemu_parse_fd into cutils.c Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
| * | | | configure: Suppress messages from pkg_config probe for checkPeter Maydell2011-11-011-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Suppress confusing messages from pkg_config when probing for 'check' by sending them to /dev/null as we do with other similar probes. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
| * | | | virtio: Add PCI memory BAR in addition to PIO BARDavid Gibson2011-11-011-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently, virtio devices are usually presented to the guest as an emulated PCI device, virtio_pci. Although the actual IO operations are done through system memory, the configuration of the virtio device is done through the one PCI IO space BAR that virtio_pci presents. But PCI IO space (aka PIO) is deprecated for modern PCI devices, and on some systems with many PCI domains accessing PIO space can be problematic. For example on the existing PowerVM implementation of the PAPR spec, PCI PIO access is not supported at all. We're hoping that our KVM implementation will support PCI PIO (once we support PCI at all), but it will probably have some irritating limitations. This patch, therefore, extends the virtio_pci device to have a PCI memory space (MMIO) BAR as well as the IO BAR. The MMIO BAR contains exactly the same registers, in exactly the same layout as the existing PIO BAR. Because the PIO BAR is still present, existing guest drivers should still work fine. With this change in place, future guest drivers can check for an MMIO BAR and use that if present (falling back to PIO when possible to support older qemu versions). Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
| * | | | usb-uhci: Use PCI DMA stub functionsDavid Gibson2011-11-011-11/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This updates the usb-uhci device emulation to use the explicit PCI DMA wrapper to initialize its scatter/gathjer structure. This means this driver should not need further changes when the sglist interface is extended to support IOMMUs. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
| * | | | usb-ehci: Use PCI DMA stub functionsDavid Gibson2011-11-011-19/+25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This updates the usb-ehci device emulation to use the explicit PCI DMA wrapper to initialize its scatter/gathjer structure. This means this driver should not need further changes when the sglist interface is extended to support IOMMUs. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
| * | | | PCI IDE: Use PCI DMA stub functionsDavid Gibson2011-11-011-9/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This updates the PCI IDE device emulation to use the explicit PCI DMA wrapper to initialize its scatter/gathjer structure. This means this driver should not need further changes when the sglist interface is extended to support IOMMUs. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
| * | | | intel-hda: Use PCI DMA stub functionsDavid Gibson2011-11-011-7/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This updates the intel-hda device emulation to use the explicit PCI DMA functions, instead of directly calling physical memory access functions. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
| * | | | pcnet-pci: Use PCI DMA stub functionsEduard - Gabriel Munteanu2011-11-011-2/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This updates the pcnet-pci device emulation to use the explicit PCI DMA functions, instead of directly calling physical memory access functions. Signed-off-by: Eduard - Gabriel Munteanu <eduard.munteanu@linux360.ro> Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
| * | | | lsi53c895a: Use PCI DMA stub functionsEduard - Gabriel Munteanu2011-11-011-17/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This updates the lsi53c895a device emulation to use the explicit PCI DMA functions, instead of directly calling physical memory access functions. Signed-off-by: Eduard - Gabriel Munteanu <eduard.munteanu@linux360.ro> Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
| * | | | e1000: Use PCI DMA stub functionsEduard - Gabriel Munteanu2011-11-011-14/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This updates the e1000 device emulation to use the explicit PCI DMA functions, instead of directly calling physical memory access functions. Signed-off-by: Eduard - Gabriel Munteanu <eduard.munteanu@linux360.ro> Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
| * | | | es1370: Use PCI DMA stub functionsEduard - Gabriel Munteanu2011-11-011-2/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This updates the es1370 device emulation to use the explicit PCI DMA functions, instead of directly calling physical memory access functions. Signed-off-by: Eduard - Gabriel Munteanu <eduard.munteanu@linux360.ro> Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
| * | | | ac97: Use PCI DMA stub functionsEduard - Gabriel Munteanu2011-11-011-3/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This updates the ac97 device emulation to use the explicit PCI DMA functions, instead of directly calling physical memory access functions. Signed-off-by: Eduard - Gabriel Munteanu <eduard.munteanu@linux360.ro> Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
| * | | | eepro100: Use PCI DMA stub functionsEduard - Gabriel Munteanu2011-11-011-72/+49
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This updates the eepro100 device emulation to use the explicit PCI DMA functions, instead of directly calling physical memory access functions. Signed-off-by: Eduard - Gabriel Munteanu <eduard.munteanu@linux360.ro> Signed-off-by: David Gibson <dwg@au1.ibm.com> Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
| * | | | rtl8139: Use PCI DMA stub functionsEduard - Gabriel Munteanu2011-11-011-52/+54
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This updates the rtl8139 device emulation to use the explicit PCI DMA functions, instead of directly calling physical memory access functions. Signed-off-by: Eduard - Gabriel Munteanu <eduard.munteanu@linux360.ro> Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
| * | | | Add stub functions for PCI device models to do PCI DMADavid Gibson2011-11-011-0/+67
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds functions to pci.[ch] to perform PCI DMA operations. At present, these are just stubs which perform directly cpu physical memory accesses. Stubs are included which are analogous to cpu_physical_memory_{read,write}(), the stX_phys() and ldX_phys() functions and cpu_physical_memory_{map,unmap}(). In addition, a wrapper around qemu_sglist_init() is provided, which also takes a PCIDevice *. It's assumed that _init() is the only sglist function which will need wrapping, the idea being that once we have IOMMU support whatever IOMMU context handle the wrapper derives from the PCI device will be stored within the sglist structure for later use. Using these stubs, however, distinguishes PCI device DMA transactions from other accesses to physical memory, which will allow PCI IOMMU support to be added in one place, rather than updating every PCI driver at that time. That is, it allows us to update individual PCI drivers to support an IOMMU without having yet determined the details of how the IOMMU emulation will operate. This will let us remove the most bitrot-sensitive part of an IOMMU patch in advance. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
| * | | | Use dma_addr_t type for scatter/gather codeDavid Gibson2011-11-012-8/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch uses the newly created dma_addr_t type throughout the scatter/gather handling code in dma-helpers.c whenever we need to represent a dma bus address. This makes a better distinction as to what is a bus address and what is a cpu physical address. Since we don't support IOMMUs yet, they can't be very different for now, but that will change in future, and this preliminary helps clarify what's going on. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
| * | | | Define DMA address and direction typesDavid Gibson2011-11-011-0/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | As a preliminary to adding more extensive DMA and IOMMU infrastructure support into qemu, this patch defines a dma_addr_t for storing DMA bus addresses and a DMADirection enum which describes whether a DMA is from an external device to main memory or from main memory to an external device. For now dma_addr_t is just defined to be target_phys_addr_t, but in future, we can change this to support machines where we have bus addresses which don't necessarily have the same format as CPU physical addresses. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
| * | | | ps2: migrate ledstateChristophe Fergeau2011-11-011-2/+44
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Make the ps2 device track its ledstate so that we can migrate it. Otherwise it gets lost across migration, and spice-server gets confused about the actual keyboard state and sends bogus caps/scroll/num key events. This fixes RH bug #729294 We only need to migrate the state when it is different of the default one (0). Signed-off-by: Christophe Fergeau <cfergeau@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
| * | | | ui/vnc: Fix use of free() instead of g_free()Stefan Weil2011-11-014-11/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Please note that mechlist still uses malloc / strdup / free. Signed-off-by: Stefan Weil <sw@weilnetz.de> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
| * | | | checkpatch: remove rule on non-indented labelsPaolo Bonzini2011-11-011-6/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There are 508 non-indented (non-default) labels, and 511 that are indented. So the rule is debatable at least. Actually, in the common case of labels at the outermost scope, there is really just one place where to put the label, so the rule is just wrong IMHO. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
| * | | | savevm: qemu_fille_buffer() used to return one error for reads of size 0.Juan Quintela2011-11-011-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
| * | | | kvm_init didn't set return value after create vm failedXu He Jie2011-11-011-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | And kvm_ioctl(s, KVM_CREATE_VM, 0)'s return value can be < -1, so change the check of vmfd at label 'err'. Signed-off-by: Xu He Jie <xuhj@linux.vnet.ibm.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
| * | | | spapr: fix buildAnthony Liguori2011-11-011-2/+2
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
* | | | | Merge branch 'master' of git://git.qemu.org/qemumalc2011-11-0219-332/+1389
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| * | | | Revert "PPC: Fail configure when libfdt is not available"Blue Swirl2011-11-011-10/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This reverts commit f90a9d02401eeeec18a122b61ccccb91244f321c. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
| * | | | Merge branch 'ppc-next' of git://repo.or.cz/qemu/agrafBlue Swirl2011-11-0119-333/+1399
| |\ \ \ \ | | |/ / / | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'ppc-next' of git://repo.or.cz/qemu/agraf: (24 commits) pseries: Add partial support for PCI ppc: Alter CPU state to mask out TCG unimplemented instructions as appropriate pseries: Allow writes to KVM accelerated TCE table KVM: PPC: Override host vmx/vsx/dfp only when information known ppc: Fix up usermode only builds pseries: Correct vmx/dfp handling in both KVM and TCG cases PPC: Fail configure when libfdt is not available ppc: Avoid decrementer related kvm exits PPC: Disable non-440 CPUs for ppcemb target PPC: Bump qemu-system-ppc to 64-bit physical address space pseries: Under kvm use guest cpu = host cpu by default ppc: Add cpu defs for POWER7 revisions 2.1 and 2.3 ppc: First cut implementation of -cpu host ppc: Remove broken partial PVR matching pseries: Update SLOF firmware image pseries: Add device tree properties for VMX/VSX and DFP under kvm ppc: Generalize the kvmppc_get_clockfreq() function Set an invalid-bits mask for each SPE instructions pseries: Update SLOF firmware image pseries: Use Book3S-HV TCE acceleration capabilities ...
| | * | | pseries: Add partial support for PCIDavid Gibson2011-10-315-4/+604
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds a PCI bus to the pseries machine. This instantiates the qemu generic PCI bus code, advertises a PCI host bridge in the guest's device tree and implements the RTAS methods specified by PAPR to access PCI config space. It also sets up the memory regions we need to provide windows into the PCI memory and IO space, and advertises those to the guest. However, because qemu can't yet emulate an IOMMU, which is mandatory on pseries, PCI devices which use DMA (i.e. most of them) will not work with this code alone. Still, this is enough to support the virtio_pci device (which probably _should_ use emulated PCI DMA, but is specced to use direct hypervisor access to guest physical memory instead). [agraf] remove typedef which could cause compile errors Signed-off-by: Alexey Kardashevskiy <aik@au1.ibm.com> Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Alexander Graf <agraf@suse.de>
| | * | | ppc: Alter CPU state to mask out TCG unimplemented instructions as appropriateDavid Gibson2011-10-312-3/+43
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The CPU state contains two bitmaps, initialized from the CPU spec which describes which instructions are implemented on the CPU. A couple of bits are defined which cover instructions (VSX and DFP) which are not currently implemented in TCG. So far, these are only used to handle the case of -cpu host because a KVM guest can use the instructions when the host CPU supports them. However, it's a mild layering violation to simply not include those bits in the CPU descriptions for those CPUs that do support them, just because we can't handle them in TCG. This patch corrects the situation, so that the instruction bits _are_ shown correctly in the cpu spec table, but are masked out from the cpu state in the non-KVM case. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Alexander Graf <agraf@suse.de>
| | * | | pseries: Allow writes to KVM accelerated TCE tableDavid Gibson2011-10-301-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Sufficiently recent kernels include a KVM call to accelerate use of PAPR TCE tables (IOMMU), which are used by PAPR virtual IO devices. This involves qemu mapping the TCE table in from a kernel obtained fd, which currently we do with PROT_READ only. This is a hangover from early (never released) versions of this kernel interface which only permitted read-only mappings and required us to destroy and recreate the table when we needed to clear it from qemu. Now, the kernel permits read-write mappings, and we rely on this to clear the table in spapr_vio_quiesce_one(). However, due to insufficient testing, I forgot to update the actual mapping of the table in kvmppc_create_spapr_tce() to add PROT_WRITE to the mmap(). This patch corrects the oversight. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Alexander Graf <agraf@suse.de>
| | * | | KVM: PPC: Override host vmx/vsx/dfp only when information knownAlexander Graf2011-10-301-3/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The -cpu host feature tries to find out the host capabilities based on device tree information. However, we don't always have that available because it's an optional property in dt. So instead of force unsetting values depending on an unreliable source of information, let's just try to be clever about it and not override capabilities when we don't know the device tree pieces. This fixes altivec with -cpu host on YDL PowerStations. Reported-by: Nishanth Aravamudan <nacc@us.ibm.com> Acked-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Alexander Graf <agraf@suse.de>
| | * | | ppc: Fix up usermode only buildsDavid Gibson2011-10-301-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The recent usage of MemoryRegion in kvm_ppc.h breaks builds with CONFIG_USER_ONLY=y. This patch fixes it. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Alexander Graf <agraf@suse.de>
| | * | | pseries: Correct vmx/dfp handling in both KVM and TCG casesDavid Gibson2011-10-304-22/+49
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently, when KVM is enabled, the pseries machine checks if the host CPU supports VMX, VSX and/or DFP instructions and advertises accordingly in the guest device tree. It does this regardless of what CPU is selected on the command line. On the other hand, when in TCG mode, it never advertises any of these facilities, even basic VMX (Altivec) which is supported in TCG. Now that we have a -cpu host option for ppc, it is fairly straightforward to fix both problems. This patch changes the -cpu host code to override the basic cpu spec derived from the PVR with information queried from the host avout VMX, VSX and DFP capability. The pseries code then uses the instruction availability advertised in the cpu state to set the guest device tree correctly for both the KVM and TCG cases. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Alexander Graf <agraf@suse.de>
| | * | | PPC: Fail configure when libfdt is not availableAlexander Graf2011-10-301-1/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We have several targets in the PPC tree now that basically require libfdt to function properly, namely the pseries and the e500 targets. This dependency will rather increase than decrease in the future, so I want to make sure that people building shiny new 1.0 actually have libfdt installed to get rid of a few ifdefs in the code. Warning: This patch will likely make configure fail for people who don't select their own --target-list, but don't have libfdt development packages installed. However, we really need this new dependency to move on. Signed-off-by: Alexander Graf <agraf@suse.de> --- v1 -> v2: - no paranthesis - no fdt check for config_pseries - add . in error message