aboutsummaryrefslogtreecommitdiff
path: root/hw
AgeCommit message (Collapse)Author
2011-10-30pseries: Use Book3S-HV TCE acceleration capabilitiesDavid Gibson
The pseries machine of qemu implements the TCE mechanism used as a virtual IOMMU for the PAPR defined virtual IO devices. Because the PAPR spec only defines a small DMA address space, the guest VIO drivers need to update TCE mappings very frequently - the virtual network device is particularly bad. This means many slow exits to qemu to emulate the H_PUT_TCE hypercall. Sufficiently recent kernels allow this to be mitigated by implementing H_PUT_TCE in the host kernel. To make use of this, however, qemu needs to initialize the necessary TCE tables, and map them into itself so that the VIO device implementations can retrieve the mappings when they access guest memory (which is treated as a virtual DMA operation). This patch adds the necessary calls to use the KVM TCE acceleration. If the kernel does not support acceleration, or there is some other error creating the accelerated TCE table, then it will still fall back to full userspace TCE implementation. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Alexander Graf <agraf@suse.de>
2011-10-30pseries: Allow KVM Book3S-HV on PPC970 CPUSDavid Gibson
At present, using the hypervisor aware Book3S-HV KVM will only work with qemu on POWER7 CPUs. PPC970 CPUs also have hypervisor capability, but they lack the VRMA feature which makes assigning guest memory easier. In order to allow KVM Book3S-HV on PPC970, we need to specially allocate the first chunk of guest memory (the "Real Mode Area" or RMA), so that it is physically contiguous. Sufficiently recent host kernels allow such contiguous RMAs to be allocated, with a kvm capability advertising whether the feature is available and/or necessary on this hardware. This patch enables qemu to use this support, thus allowing kvm acceleration of pseries qemu machines on PPC970 hardware. Signed-off-by: Paul Mackerras <paulus@samba.org> Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Alexander Graf <agraf@suse.de> --- agraf: fix to use memory api
2011-10-30pseries: Support SMT systems for KVM Book3S-HVDavid Gibson
Alex Graf has already made qemu support KVM for the pseries machine when using the Book3S-PR KVM variant (which runs the guest in usermode, emulating supervisor operations). This code allows gets us very close to also working with KVM Book3S-HV (using the hypervisor capabilities of recent POWER CPUs). This patch moves us another step towards Book3S-HV support by correctly handling SMT (multithreaded) POWER CPUs. There are two parts to this: * Querying KVM to check SMT capability, and if present, adjusting the cpu numbers that qemu assigns to cause KVM to assign guest threads to cores in the right way (this isn't automatic, because the POWER HV support has a limitation that different threads on a single core cannot be in different guests at the same time). * Correctly informing the guest OS of the SMT thread to core mappings via the device tree. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Alexander Graf <agraf@suse.de>
2011-10-30ppc/e500_pci: Fix an array overflow issueLiu Yu-B13201
When access PPCE500_PCI_IW1 the previous index get overflow. The patch fix the issue and update all to keep consistent style. Signed-off-by: Liu Yu <yu.liu@freescale.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2011-10-30ppc/e500_pci: Fix code styleLiu Yu-B13201
Put trailing statements on next line. Signed-off-by: Liu Yu <yu.liu@freescale.com> Reviewed-by: Andreas Färber <andreas.faerber@web.de> Signed-off-by: Alexander Graf <agraf@suse.de>
2011-10-30hw/9pfs: Make VirtFS tracing work correctlyAneesh Kumar K.V
this patch fix multiple issues with VirtFS tracing. a) Add tracepoint to the correct code path. We handle error in complete_pdu b) Fix indentation in python script c) Fix variable naming issue in python script Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-10-26Merge remote-tracking branch 'kwolf/for-anthony' into stagingAnthony Liguori
2011-10-25hda: do not mix output and input stream states, RHBZ #740493Marc-André Lureau
Windows 7 may use the same stream number for input and output. Current code will confuse streams. Changes since v1: - keep running_compat[] for migration version 1 - add running_real[] for migration version 2 Signed-off-by: Marc-Andr? Lureau <marcandre.lureau@redhat.com> Signed-off-by: malc <av1474@comtv.ru>
2011-10-25hda: do not mix output and input streams, RHBZ #740493Marc-André Lureau
Windows 7 may use the same stream number for input and output. That will result in lot of garbage on playback. The hardcoded value of 4 needs to be in sync with GCAP streams description and IN/OUT registers. Signed-off-by: Marc-Andr? Lureau <marcandre.lureau@redhat.com> Signed-off-by: malc <av1474@comtv.ru>
2011-10-24Merge remote-tracking branch 'bonzini/split-main-loop-for-anthony' into stagingAnthony Liguori
2011-10-23m48t59: fix write accessBlue Swirl
Fix incorrect order of arguments, letting writes to NVRAM succeed. It looks like guests never write to the device, only read from it, since the bug originates back to 819385c58b319d9f80d676cefaed0610118f03ac. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-10-23m48t59: drop obsolete address base arithmeticBlue Swirl
Remove now incorrect address base arithmetic, missed by 9936d6e42392f1440505dfa9df065eabd251cadf. Fixes Sparc64 boot. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-10-23pci_bridge: fix typoBlue Swirl
Reviewed-by: Avi Kivity <avi@redhat.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-10-21remove unused functionPaolo Bonzini
Reviewed-by: Anthony Liguori <aliguori@us.ibm.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2011-10-21pc: Fix floppy drives with if=noneKevin Wolf
Commit 63ffb564 broke floppy devices specified on the command line like -drive file=...,if=none,id=floppy -global isa-fdc.driveA=floppy because it relies on drive_get() which works only with -fda/-drive if=floppy. This patch resembles what we're already doing for IDE, i.e. remember the floppy device that was created and use that to extract the BlockDriverStates where needed. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com>
2011-10-21fdc: Fix floppy port I/OKevin Wolf
The floppy device was broken by commit 212ec7ba (fdc: Convert to isa_register_portio_list). While the old interface provided the port number relative to the floppy drive's io_base, the new one provides the real port number, so we need to apply a bitmask now to get the register number. Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-10-21xen_disk: Always set feature-barrier = 1Kevin Wolf
The synchronous .bdrv_flush callback doesn't exist any more and a device really shouldn't poke into the block layer internals anyway. All drivers are supposed to have a correctly working bdrv_flush, so let's just hard-code this. Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-10-21hw/arm_gic.c: Fix save/load of irq_target arrayDmitry Koshelev
irq_target array saving/loading is in the wrong loop. Version bump. Signed-off-by: Dmitry Koshelev <karaghiozis@gmail.com> Acked-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Andrzej Zaborowski <andrew.zaborowski@intel.com>
2011-10-21hw/omap2: Wire up the IRQ for the 2430's fifth GPIO modulePeter Maydell
The OMAP2430 version of the omap-gpio device has five GPIO modules, not four like the other OMAP2 versions; wire up the fifth module's IRQ line correctly. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Andrzej Zaborowski <andrew.zaborowski@intel.com>
2011-10-20Merge remote-tracking branch 'quintela/migration-pull' into stagingAnthony Liguori
2011-10-20Merge remote-tracking branch 'qemu-kvm-tmp/memory/batch' into stagingAnthony Liguori
2011-10-20Merge remote-tracking branch 'aneesh/for-upstream-6' into stagingAnthony Liguori
Conflicts: trace-events
2011-10-20migration: rename qemu_file_has_error to qemu_file_get_errorJuan Quintela
Now the function returned errno, so it is better the new name. Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
2011-10-20migration: change has_error to contain errno valuesJuan Quintela
We normally already have an errno value. When not, abuse EIO. Signed-off-by: Juan Quintela <quintela@redhat.com>
2011-10-20ds1225y: Use stdio instead of QEMUFileJuan Quintela
QEMUFile * is only intended for migration nowadays. Using it for anything else just adds pain and a layer of buffers for no good reason. Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
2011-10-17tcx: convert to memory APIAvi Kivity
Signed-off-by: Avi Kivity <avi@redhat.com>
2011-10-17tc63963xb: convert to memory APIAvi Kivity
Signed-off-by: Avi Kivity <avi@redhat.com>
2011-10-17syborg: convert to memory APIAvi Kivity
Signed-off-by: Avi Kivity <avi@redhat.com>
2011-10-17sun4u: convert to memory APIAvi Kivity
Signed-off-by: Avi Kivity <avi@redhat.com>
2011-10-17sun4m: convert to memory APIAvi Kivity
Signed-off-by: Avi Kivity <avi@redhat.com>
2011-10-17strongarm: convert to memory APIAvi Kivity
Signed-off-by: Avi Kivity <avi@redhat.com>
2011-10-17spitz: convert to memory APIAvi Kivity
Signed-off-by: Avi Kivity <avi@redhat.com>
2011-10-17spapr: convert to memory APIAvi Kivity
Signed-off-by: Avi Kivity <avi@redhat.com>
2011-10-17sm501: convert to memory APIAvi Kivity
Signed-off-by: Avi Kivity <avi@redhat.com>
2011-10-17s390-virtio: convert to memory APIAvi Kivity
Signed-off-by: Avi Kivity <avi@redhat.com>
2011-10-17realview: convert to memory APIAvi Kivity
Signed-off-by: Avi Kivity <avi@redhat.com>
2011-10-17r2d: convert to memory APIAvi Kivity
Signed-off-by: Avi Kivity <avi@redhat.com>
2011-10-17ppcr500_mpc8544ds: convert to memory APIAvi Kivity
Signed-off-by: Avi Kivity <avi@redhat.com>
2011-10-17pci: simplify memory region registrationAvi Kivity
The two code paths (for ADDRESS_SPACE_IO and ADDRESS_SPACE_MEM) are identical. Unify them. Signed-off-by: Avi Kivity <avi@redhat.com>
2011-10-17pxa2xx: convert to memory API (part II)Avi Kivity
Signed-off-by: Avi Kivity <avi@redhat.com>
2011-10-17pxa2xx: convert to memory API (part I)Avi Kivity
Signed-off-by: Avi Kivity <avi@redhat.com>
2011-10-17ppc_prep: convert to memory APIAvi Kivity
Signed-off-by: Avi Kivity <avi@redhat.com>
2011-10-17ppc_oldworld: convert to memory APIAvi Kivity
Signed-off-by: Avi Kivity <avi@redhat.com>
2011-10-16monitor: Restrict pic/irq_info to supporting targetsJan Kiszka
This allows to drop various stubs and move the i8359 into hwlib. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-10-16i8259: Fix coding styleJan Kiszka
No functional changes. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-10-16i8259: Convert to qdevJan Kiszka
This key cleanup step requires to move the IRQ debugging bit from i8259_set_irq directly to the per-PIC pic_set_irq, to pass the PIC parameters (I/O base, ELCR address and mask, master/slave mode) as qdev properties, and to interconnect the PICs with their environment via GPIO pins. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-10-16qdev: Add HEX8 propertyJan Kiszka
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Reviewed-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-10-16i8259: Eliminate PicState2Jan Kiszka
Introduce a reference to the slave PIC for the few cases we need to access it without a proper pointer at hand and drop PicState2. We could even live without slave_pic if we had a better way of modeling the cascade bus the PICs are attached to (in addition to the ISA bus). Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-10-16i8259: Replace PicState::pics_state with master flagJan Kiszka
This reflects how real PICs indentify their role (in non-buffered mode): Pass the state of the /SP input on pic_init and use it instead of pics_state to differentiate between master and slave mode. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-10-16i8259: PREP: Replace pic_intack_read with pic_read_irqJan Kiszka
There is nothing in the i8259 spec that justifies the special pic_intack_read. At least the Linux PREP kernels configure the PICs properly so that pic_read_irq returns identical values, and setting read_reg_select in PIC0 cannot be derived from any special i8259 mode. So switch ppc_prep to pic_read_irq and drop the now unused PIC code. CC: Andreas Färber <andreas.faerber@web.de> Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
generated by cgit v1.2.3 (git 2.26.2) at 2025-02-08 23:42:47 +0000