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This patch implements MSI and MSI-X support for the pseries PCI host
bridge. To do this it adds:
* A "config_space_address to msi_table" map, since the MSI RTAS calls
take a PCI config space address as an identifier.
* A MSIX memory region to catch msi_notify()/msix_notiry() from
virtio-pci and pass them to the guest via qemu_irq_pulse().
* RTAS call "ibm,change-msi" which sets up MSI vectors for a
device. Note that this call may configure and return lesser number of
vectors than requested.
* RTAS call "ibm,query-interrupt-source-number" which translates MSI
vector to interrupt controller (XICS) IRQ number.
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
[agraf: fix error case ndev < 0]
Signed-off-by: Alexander Graf <agraf@suse.de>
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This adds a trace event in the pseries PCI specific set_irq() function to
assist in debugging.
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
[agraf: add trace.h include]
Signed-off-by: Alexander Graf <agraf@suse.de>
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The pseries PCI code makes use of an internal find_dev() function which
locates a PCIDevice * given a (platform specific) bus ID and device
address. Internally this needs to first locate the host bridge on which
the device resides based on the bus ID. This patch exposes that host
bridge lookup as a separate function, which we will need later in the MSI
and VFIO code.
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
[agraf: drop trace.h inclusion]
Signed-off-by: Alexander Graf <agraf@suse.de>
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The patch adds a simple helper which allocates a consecutive sequence
of IRQs calling spapr_allocate_irq for each and checks that allocated
IRQs go consequently.
The patch is required for upcoming support of MSI/MSIX on POWER.
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
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Currently the RTAS functions for handling PCI are registered from the
class init code for the PCI host bridge. That sort of makes sense
now, but will break in the future when vfio gives us multiple types of
host bridge for pseries (emulated and pass-through, at least). The
RTAS functions will be common across all host bridge types (and will
call out to different places internally depending on the type).
So, this patch moves the RTAS registration into its own function
called direct from the machine setup code.
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
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Currently, the interfaces in the pseries machine code for assignment
and setup of interrupts pass around qemu_irq objects. That was done
in an attempt not to be too closely linked to the specific XICS
interrupt controller. However interactions with the device tree setup
made that attempt rather futile, and XICS is part of the PAPR spec
anyway, so this really just meant we had to carry both the qemu_irq
pointers and the XICS irq numbers around.
This mess will just get worse when we add upcoming PCI MSI support,
since that will require tracking a bunch more interrupt. Therefore,
this patch reworks the spapr code to just use XICS irq numbers
(roughly equivalent to GSIs on x86) and only retrieve the qemu_irq
pointers from the XICS code when we need them (a trivial lookup).
This is a reworked and generalized version of an earlier spapr_pci
specific patch from Alexey Kardashevskiy.
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
[agraf: fix checkpath warning]
Signed-off-by: Alexander Graf <agraf@suse.de>
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The pseries machine prints several messages to stderr whenever it starts up
and another whenever the vm is reset. It's not normal for qemu machines to
do this though, so this patch removes them. We can put them back
conditional on a DEBUG symbol if we really need them in future.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
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This patch updates the SLOF version, introducing a number of fixes:
* add proper graphics support
* fix bugs with graphical terminal under grub2
* fix bugs in handling of 64-bit unit addresses
* fix VSCSI representation to be closer to PowerVM
* fix bugs which caused grub2 to crash
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>
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Global variables are bad. Let's move spapr_has_graphics into the
machine state struct.
Signed-off-by: Alexander Graf <agraf@suse.de>
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When selecting our VGA adapter, we want to:
* fail completely when we can't satisfy the user's request
* support -nographic where no VGA adapter should be spawned
This patch reworks the logic so we fulfill the two conditions above.
Signed-off-by: Alexander Graf <agraf@suse.de>
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When compiling the xbzrle code on my ppc32 user space, I hit the following
gcc compiler warning (treated as an error):
cc1: warnings being treated as errors
savevm.c: In function ‘xbzrle_encode_buffer’:
savevm.c:2476: error: overflow in implicit constant conversion
Fix this by making the cast explicit, rather than implicit.
Signed-off-by: Alexander Graf <agraf@suse.de>
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Also instanciate the USB keyboard and mouse when that option is used
(you can still use -device to create individual devices without all
the defaults)
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Li Zhang <zhlcindy@linux.vnet.ibm.com>
[agraf: remove USB bits]
Signed-off-by: Alexander Graf <agraf@suse.de>
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Functions pci_vga_init() and pci_cirrus_vga_init() are declared
in pc.h. That prevents other platforms (e.g. sPAPR) to use them.
This patch is to create one new file vga-pci.h and move the
declarations to vga-pci.h, so that they can be shared by
all platforms. This patch also cleans up on all platforms.
Signed-off-by: Li Zhang <zhlcindy@linux.vnet.ibm.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
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This reverts commit 518c7fb44f2182cde943dc64f88cb2fd4e4ff6b5. It breaks
new Linux guests with SMP, because IPIs get mapped to large vectors which
our MPIC emulation does not implement.
Conflicts:
hw/ppc/e500.c
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Currently for powerpc, kvm_arch_handle_exit() always returns 1, meaning
that its caller - kvm_cpu_exec() - will always exit immediately afterwards
to the loop in qemu_kvm_cpu_thread_fn().
There's no need to do this. Once we've handled the hypercall there's no
reason we can't go straight around and KVM_RUN again, which is what ret = 0
will signal. The only exception might be for hypercalls which affect the
state of cpu_can_run(), however the only one that might do this is H_CEDE
and for kvm that is always handled in the kernel, not qemu.
Furtherm setting ret = 0 means that when exit_requested is set from a
hypercall, we will enter KVM_RUN once more with a signal which lets the
the kernel do its internal logic to complete the hypercall with out
actually executing any more guest code. This is important if our hypercall
also triggered a reset, which previously would re-initialize everything
without completing the hypercall. This caused the kernel to get confused
because it thought the guest was still in the middle of a hypercall when
it has actually been reset.
This patch therefore changes to ret = 0, which is both a bugfix and a small
optimization.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
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This gives the kernel a paravirtualized machine to target, without
requiring both sides to pretend to be targeting a specific board
that likely has little to do with the host in KVM scenarios. This
avoids the need to add new boards to QEMU, just to be able to
run KVM on new CPUs.
Signed-off-by: Scott Wood <scottwood@freescale.com>
[agraf: conditionalize on CONFIG_FDT]
Signed-off-by: Alexander Graf <agraf@suse.de>
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Currently the only mpc8544ds-ism that is factored out is
toplevel compatible and model. In the future the generic e500
code is expected to become more generic.
Signed-off-by: Scott Wood <scottwood@freescale.com>
[agraf: conditionalize on CONFIG_FDT]
Signed-off-by: Alexander Graf <agraf@suse.de>
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No functional changes -- machine is still outwardly mpc8544ds.
The references that are not changed contain mpc8544 hardware details that
need to be parameterized if/when a different e500 platform wants to
change them.
Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
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Rename the file (with no changes other than fixing up the header paths)
in preparation for refactoring into a generic e500 platform. Also move
it into the newly created ppc/ directory.
Signed-off-by: Scott Wood <scottwood@freescale.com>
Reviewed-by: Andreas Färber <afaerber@suse.de>
[agraf: conditionalize on CONFIG_FDT]
Signed-off-by: Alexander Graf <agraf@suse.de>
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spapr_populate_pci_devices() populates the device tree only with bus
properties and has nothing to do with the devices on it as PCI BAR
allocation is done by the system firmware (SLOF).
New name - spapr_populate_pci_dt() - describes the functionality better.
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Alexander Graf <agraf@suse.de>
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The PCIHostState struct already contains SysBusDevice so
the one in sPAPRPHBState has to go.
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Alexander Graf <agraf@suse.de>
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* origin/master:
linux-user: ARM: Ignore immediate value for svc in thumb mode
linux-user: Use init_guest_space when -R and -B are specified
linux-user: Factor out guest space probing into a function
flatload: fix bss clearing
linux-user: make host_to_target_cmsg support SO_TIMESTAMP cmsg_type
linux-user: make do_setsockopt support SOL_RAW ICMP_FILTER socket option
linux-user: pass sockaddr from host to target
x86: switch to AREG0 free mode
x86: avoid AREG0 in segmentation helpers
x86: avoid AREG0 for misc helpers
x86: use wrappers for memory access helpers
x86: avoid AREG0 for SMM helpers
x86: avoid AREG0 for SVM helpers
x86: avoid AREG0 for integer helpers
x86: avoid AREG0 for condition code helpers
x86: avoid AREG0 for FPU helpers
linux-user: Move target_to_host_errno_table[] setup out of ioctl loop
linux-user: Fix SNDCTL_DSP_MAP{IN, OUT}BUF ioctl definitions
linux-user: Fix incorrect TARGET_BLKBSZGET, TARGET_BLKBSZSET
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* 'linux-user.next' of git://git.linaro.org/people/pmaydell/qemu-arm:
linux-user: ARM: Ignore immediate value for svc in thumb mode
linux-user: Use init_guest_space when -R and -B are specified
linux-user: Factor out guest space probing into a function
flatload: fix bss clearing
linux-user: make host_to_target_cmsg support SO_TIMESTAMP cmsg_type
linux-user: make do_setsockopt support SOL_RAW ICMP_FILTER socket option
linux-user: pass sockaddr from host to target
linux-user: Move target_to_host_errno_table[] setup out of ioctl loop
linux-user: Fix SNDCTL_DSP_MAP{IN, OUT}BUF ioctl definitions
linux-user: Fix incorrect TARGET_BLKBSZGET, TARGET_BLKBSZSET
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When running in thumb mode, Linux doesn't evaluate the immediate value
of the svc instruction, but instead just always assumes the syscall number
to be in r7.
This fixes executing go_bootstrap while building go for me.
Signed-off-by: Alexander Graf <agraf@suse.de>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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Roll the code used to initialize the guest memory space when -R
or -B is used into 'init_guest_space' and then call 'init_guest_space'
from the driver. This way the reserved guest memory space can
be probed for. Calling 'mmap' just once as is currently done is not
guaranteed to succeed since the host address space validation might fail.
Signed-off-by: Meador Inge <meadori@codesourcery.com>
[PMM: Fixed minor whitespace errors.]
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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Signed-off-by: Meador Inge <meadori@codesourcery.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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The current bss clear logic assumes the target mmap address and host
address are the same. Use g2h to translate from the target address
space to the host so we can call memset on it.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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Signed-off-by: Jing Huang <jing.huang.pku@gmail.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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Signed-off-by: Jing Huang <jing.huang.pku@gmail.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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Signed-off-by: Jing Huang <jing.huang.pku@gmail.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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Add an explicit CPUX86State parameter instead of relying on AREG0.
Remove temporary wrappers and switch to AREG0 free mode.
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
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Add an explicit CPUX86State parameter instead of relying on AREG0.
Rename remains of op_helper.c to seg_helper.c.
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
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Add an explicit CPUX86State parameter instead of relying on AREG0.
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
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Switch to wrapped versions of memory access functions.
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
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Add an explicit CPUX86State parameter instead of relying on AREG0.
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
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Add an explicit CPUX86State parameter instead of relying on AREG0.
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
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Add an explicit CPUX86State parameter instead of relying on AREG0.
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
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Add an explicit CPUX86State parameter instead of relying on AREG0.
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
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Make FPU helpers take a parameter for CPUState instead
of relying on global env.
Introduce temporary wrappers for FPU load and store ops. Remove
wrappers for non-AREG0 code. Don't call unconverted helpers
directly.
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
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* kraxel/seabios-5a02306:
update seabios to latest master
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Switch to my personal email address.
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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* qmp/queue/qmp: (48 commits)
target-ppc: add implementation of query-cpu-definitions (v2)
target-i386: add implementation of query-cpu-definitions (v2)
qapi: add query-cpu-definitions command (v2)
compiler: add macro for GCC weak symbols
qapi: add query-machines command
qapi: mark QOM commands stable
qmp: introduce device-list-properties command
qmp: add SUSPEND_DISK event
qmp: qmp-events.txt: add missing doc for the SUSPEND event
qmp: qmp-events.txt: put events in alphabetical order
qmp: emit the WAKEUP event when the guest is put to run
qmp: don't emit the RESET event on wakeup from S3
scripts: qapi-commands.py: qmp-commands.h: include qdict.h
docs: writing-qmp-commands.txt: update error section
error, qerror: drop QDict member
qerror: drop qerror_table and qerror_format()
error, qerror: pass desc string to error calls
error: drop error_get_qobject()/error_set_qobject()
qemu-ga: switch to the new error format on the wire
qmp: switch to the new error format on the wire
...
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* quintela/migration-next-20120808:
Restart optimization on stage3 update version
Add XBZRLE statistics
Add migration accounting for normal and duplicate pages
Change total_time to total-time in MigrationStats
Add migrate_set_cache_size command
Add XBZRLE to ram_save_block and ram_save_live
Add xbzrle_encode_buffer and xbzrle_decode_buffer functions
Add uleb encoding/decoding functions
Add cache handling functions
Add XBZRLE documentation
Add migrate-set-capabilities
Add migration capabilities
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* pmaydell/arm-devs.next:
arm: Move some ARM devices into libhw
ssd0323: abort() instead of exit(1) on error.
hw/sd.c: make sd_wp_addr() return bool
hw/sd.c: make sd_dataready() return bool
hw/sd.c: convert binary variables to bool
hw/sd.c: introduce wrapper for conversion address to wp group
hw/sd.c: make sd_wp_addr() accept 64 bit address argument
hw/sd.c: convert wp_groups in SDState to bitfield
armv7m: Guard against no -kernel argument
hw/armv7m_nvic: Fix incorrect default for num-irqs property
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Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
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Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
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This command attempts to map to the behavior of -cpu ?. Unfortunately, the
output of this command differs wildly across targets.
To accommodate this, we use a weak symbol to implement a default version of the
command that fails with a QERR_NOT_SUPPORTED error code. Targets can then
override and implement this command if it makes sense for them.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
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This lets us provide a default implementation of a symbol which targets can
override.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
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This provides the same output as -M ? but in a structured way.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
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We've had a cycle to tweak. It is time to commit to supporting them.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
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