Commit Graph

34226 Commits

Author SHA1 Message Date
Richard Henderson
d4cba13bdf tcg/ppc: Fix failure in tcg_out_mem_long
With rt != r0 on loads, we use rt for scratch.  If we need an index
register different from base, we can't use rt, but r0 is usable.

Signed-off-by: Richard Henderson <rth@twiddle.net>
Message-id: 1403843160-30332-1-git-send-email-rth@twiddle.net
Tested-by: Cédric Le Goater <clg@fr.ibm.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-06-27 13:23:41 +01:00
Benoît Canet
4c828dc61a block: Add node-name argument to drive-mirror
This new argument can be used to specify the node-name of the new mirrored BDS.

Signed-off-by: Benoit Canet <benoit@irqsave.net>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2014-06-27 14:18:18 +02:00
Benoît Canet
cf29a570a7 quorum: Add the rewrite-corrupted parameter to quorum
On read operations when this parameter is set and some replicas are corrupted
while quorum can be reached quorum will proceed to rewrite the correct version
of the data to fix the corrupted replicas.

This will shine with SSD where the FTL will remap the same block at another
place on rewrite.

Signed-off-by: Benoit Canet <benoit@irqsave.net>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2014-06-27 14:18:17 +02:00
Alexander Graf
79c0ff2cae PPC: e500: Only create dt entries for existing serial ports
When the user specifies -nodefaults he can tell us that he doesn't want any
serial ports spawned by default. While we do honor that wish, we still create
device tree entries for those non-existent devices.

Make device tree generation depend on whether the device is actually available.

Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-27 13:48:27 +02:00
Alexey Kardashevskiy
9a321e9234 spapr_pci: Use XICS interrupt allocator and do not cache interrupts in PHB
Currently SPAPR PHB keeps track of all allocated MSI (here and below
MSI stands for both MSI and MSIX) interrupt because
XICS used to be unable to reuse interrupts. This is a problem for
dynamic MSI reconfiguration which happens when guest reloads a driver
or performs PCI hotplug. Another problem is that the existing
implementation can enable MSI on 32 devices maximum
(SPAPR_MSIX_MAX_DEVS=32) and there is no good reason for that.

This makes use of new XICS ability to reuse interrupts.

This reorganizes MSI information storage in sPAPRPHBState. Instead of
static array of 32 descriptors (one per a PCI function), this patch adds
a GHashTable when @config_addr is a key and (first_irq, num) pair is
a value. GHashTable can dynamically grow and shrink so the initial limit
of 32 devices is gone.

This changes migration stream as @msi_table was a static array while new
@msi_devs is a dynamic hash table. This adds temporary array which is
used for migration, it is populated in "spapr_pci"::pre_save() callback
and expanded into the hash table in post_load() callback. Since
the destination side does not know the number of MSI-enabled devices
in advance and cannot pre-allocate the temporary array to receive
migration state, this makes use of new VMSTATE_STRUCT_VARRAY_ALLOC macro
which allocates the array automatically.

This resets the MSI configuration space when interrupts are released by
the ibm,change-msi RTAS call.

This fixed traces to be more informative.

This changes vmstate_spapr_pci_msi name from "...lsi" to "...msi" which
was incorrect by accident. As the internal representation changed,
thus bumps migration version number.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
[agraf: drop g_malloc_n usage]
Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-27 13:48:27 +02:00
Alexey Kardashevskiy
f32935ea22 vmstate: Add preallocation for migrating arrays (VMS_ALLOC flag)
There are few helpers already to support array migration. However they all
require the destination side to preallocate arrays before migration which
is not always possible due to unknown array size as it might be some
sort of dynamic state. One of the examples is an array of MSIX-enabled
devices in SPAPR PHB - this array may vary from 0 to 65536 entries and
its size depends on guest's ability to enable MSIX or do PCI hotplug.

This adds new VMSTATE_VARRAY_STRUCT_ALLOC macro which is pretty similar to
VMSTATE_STRUCT_VARRAY_POINTER_INT32 but it can alloc memory for migratign
array on the destination side.

This defines VMS_ALLOC flag for a field.

This changes vmstate_base_addr() to do the allocation when receiving
migration.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: Juan Quintela <quintela@redhat.com>
[agraf: drop g_malloc_n usage]
Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-27 13:48:27 +02:00
Alexey Kardashevskiy
51bba713fe xics: Implement xics_ics_free()
This implements interrupt release function so IRQs can be returned back
to the pool for reuse in cases such as PCI hot plug.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-27 13:48:26 +02:00
Alexey Kardashevskiy
ba0e5bf8de spapr: Remove @next_irq
This removes @next_irq from sPAPREnvironment which was used in old
IRQ allocator as XICS is now responsible for IRQs and keeps track of
allocated IRQs.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-27 13:48:26 +02:00
Alexey Kardashevskiy
bee763dbfb spapr: Move interrupt allocator to xics
The current allocator returns IRQ numbers from a pool and does not
support IRQs reuse in any form as it did not keep track of what it
previously returned, it only keeps the last returned IRQ. Some use
cases such as PCI hot(un)plug may require IRQ release and reallocation.

This moves an allocator from SPAPR to XICS.

This switches IRQ users to use new API.

This uses LSI/MSI flags to know if interrupt is allocated.

The interrupt release function will be posted as a separate patch.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-27 13:48:26 +02:00
Alexey Kardashevskiy
a7e519a8cf xics: Disable flags reset on xics reset
Since islsi[] array has been merged into the ICSState struct,
we must not reset flags as they tell if the interrupt is in use.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-27 13:48:26 +02:00
Alexey Kardashevskiy
641c349352 xics: Add xics_find_source()
PAPR allows having multiple interrupt sources such as PHB.

This adds a source lookup function and makes use of it.

Since at the moment QEMU only supports a single source,
no change in behaviour is expected.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-27 13:48:26 +02:00
Alexey Kardashevskiy
4af88944d0 xics: Add flags for interrupts
The existing interrupt allocation scheme in SPAPR assumes that
interrupts are allocated at the start time, continously and the config
will not change. However, there are cases when this is not going to work
such as:

1. migration - we will have to have an ability to choose interrupt
numbers for devices in the command line and this will create gaps in
interrupt space.

2. PCI hotplug - interrupts from unplugged device need to be returned
back to interrupt pool, otherwise we will quickly run out of interrupts.

This replaces a separate lslsi[] array with a byte in the ICSIRQState
struct and defines "LSI" and "MSI" flags. Neither of these flags set
signals that the descriptor is not allocated and not in use.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-27 13:48:26 +02:00
Sam bobroff
3b50d8974b spapr: Add RTAS sysparm SPLPAR Characteristics
Add support for the SPLPAR Characteristics parameter to the emulated
RTAS call ibm,get-system-parameter.

The support provides just enough information to allow "cat
/proc/powerpc/lparcfg" to succeed without generating a kernel error
message.

Without this patch the above command will produce the following kernel
message: arch/powerpc/platforms/pseries/lparcfg.c \
parse_system_parameter_string Error calling get-system-parameter \
(0xfffffffd)

Signed-off-by: Sam Bobroff <sam.bobroff@au1.ibm.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-27 13:48:26 +02:00
Sam bobroff
b907d7b0fd spapr: Add RTAS sysparm UUID
Add support for the UUID parameter to the emulated RTAS call
ibm,get-system-parameter.

Return the guest's UUID as the value for the RTAS UUID system
parameter, or null (a zero length result) if it is not set.

Signed-off-by: Sam Bobroff <sam.bobroff@au1.ibm.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-27 13:48:26 +02:00
Sam bobroff
3052d95190 spapr: Fix RTAS sysparm DIAGNOSTICS_RUN_MODE
This allows the ibm,get-system-parameter RTAS call to succeed for the
DIAGNOSTICS_RUN_MODE system parameter.

The problem can be seen with "ppc64_cpu --run-mode" from the
powerpc-utils package which fails before this patch with "Machine does
not support diagnostic run mode".

This is corrected by using the rtas_st_buffer() function to write to
the buffer.

The RTAS constants are also moved out into a header file, some new
constants added and the surrounding code slightly simplified.

Signed-off-by: Sam Bobroff <sam.bobroff@au1.ibm.com>
[agraf: remove some commentary]
Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-27 13:48:25 +02:00
Sam bobroff
ce3fa1eca2 spapr: Add rtas_st_buffer utility function
Add a function to write lengh + data into a buffer as required for the
emulation of the RTAS ibm,get-system-parameter call.

If the destination is smaller than the source, the write is truncated
and success is returned. This matches the behaviour of pHyp.

This will be used in following patches.

Signed-off-by: Sam Bobroff <sam.bobroff@au1.ibm.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-27 13:48:25 +02:00
Alexey Kardashevskiy
6026db4501 spapr: Define a 2.1 pseries machine
This adds a v2.1 machine to support backward compatibility
for newer macines in the case if they ever be implemented.

This adds a "pseries-2.1" machine as a child of the "pseries"
machine and only changes visible machine name.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-27 13:48:25 +02:00
Alexey Kardashevskiy
6ca1502e36 spapr: Fix code design style (s/SPAPRMachine/sPAPRMachineState)
Every single sPAPR QOM object has small first "s".
Most (not all yet) QOM objects have "State" suffix.

This replaces SPAPRMachine with sPAPRMachineState to conform with QEMU
code style and removes redundant empty line.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-27 13:48:25 +02:00
Alexey Kardashevskiy
f6c3ebcc3b target-ppc: Add support for POWER8 pvr 0x4D0000
At the moment QEMU knows about one version of POWER8 CPU with
PVR 0x4B.0000. This CPU class is defined as "POWER8". The linux
kernel names it as "POWER8E" which is different from the name QEMU uses.

Now we get another version of POWER8 which is architecturally equivalent
to POWER8E but has different PVR 0x4D.0000 so QEMU fails to find
a PPC CPU class on these machines. The linux kernel names these CPUs as
"POWER8".

This renames the existing "POWER8" to "POWER8E" to be more precise and
stay in sync with the linux kernel.

This adds a new "POWER8" family which calls POWER8E class init function
and defines own PVR mask (used to match a CPU class) and desc (used to
create dynamic version-less CPU class).

This does not change CPU class fw_name attribute as the host POWER8
firmware keeps using "PowerPC,POWER8" on both POWER8 and POWER8E.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-27 13:48:24 +02:00
BALATON Zoltan
1be88255a7 uninorth: Fix PCI hole size
Fix PCI hole size to match that what is found on real hardware.
(OpenBIOS already uses the correct length.)

Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-27 13:48:24 +02:00
BALATON Zoltan
a0bb2a5fa0 mac99: Add motherboard devices before PCI cards
Change the order of creating devices for New World Mac emulation so
that devices on the motherboard are added first and PCI cards (VGA and
NIC) come later. As a side effect, this also causes OpenBIOS to map
the motherboard devices into the MMIO space to the same addresses as
on real hardware and allow clients that hardcode these addresses (e.g.
MorphOS) to find and use them until OpenBIOS is tought to map devices
to specific addresses. (On real hardware the graphics and network
cards are really on separate buses but we don't model that yet.) This
brings the memory map closer to what is found on PowerMac3,1.

Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-27 13:48:24 +02:00
Peter Maydell
c99b6f879a target-ppc: Remove unused gen_qemu_ld8s()
The gen_qemu_ld8s() function is unused; remove it.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-27 13:48:23 +02:00
Peter Maydell
b247812e4a target-ppc: Remove unused IMM and d extract helpers
Remove the definition of the IMM and d extract helpers; these seem to have
been added as part of the initial PPC support in 2003 but never actually
used.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-27 13:48:23 +02:00
Alexey Kardashevskiy
591812634c vfio: Enable for SPAPR
This turns the sPAPR support on and enables VFIO container use
in the kernel.

This extends vfio_connect_container to support VFIO_SPAPR_TCE_IOMMU type
in the host kernel.

This registers a memory listener which sPAPR IOMMU will notify when
executing H_PUT_TCE/etc DMA calls. The listener then will notify the host
kernel about DMA map/unmap operation via VFIO_IOMMU_MAP_DMA/
VFIO_IOMMU_UNMAP_DMA ioctls.

This executes VFIO_IOMMU_ENABLE ioctl to make sure that the IOMMU is free
of mappings and can be exclusively given to the user. At the moment SPAPR
is the only platform requiring this call to be implemented.

Note that the host kernel function implementing VFIO_IOMMU_DISABLE
is called automatically when container's fd is closed so there is
no need to call it explicitly from QEMU. We may need to call
VFIO_IOMMU_DISABLE explicitly in the future for some sort of dynamic
reconfiguration (PCI hotplug or dynamic IOMMU group management).

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Acked-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-27 13:48:23 +02:00
Alexey Kardashevskiy
9fc34ada7e spapr_pci_vfio: Add spapr-pci-vfio-host-bridge to support vfio
The patch adds a spapr-pci-vfio-host-bridge device type
which is a PCI Host Bridge with VFIO support. The new device
inherits from the spapr-pci-host-bridge device and adds an "iommu"
property which is an IOMMU id. This ID represents a minimal entity
for which IOMMU isolation can be guaranteed. In SPAPR architecture IOMMU
group is called a Partitionable Endpoint (PE).

Current implementation supports one IOMMU id per QEMU VFIO PHB. Since
SPAPR allows multiple PHB for no extra cost, this does not seem to
be a problem. This limitation may change in the future though.

Example of use:
Configure and Add 3 functions of a multifunctional device to QEMU:
(the NEC PCI USB card is used as an example here):
-device spapr-pci-vfio-host-bridge,id=USB,iommu=4,index=7 \
-device vfio-pci,host=4:0:1.0,addr=1.0,bus=USB,multifunction=true
-device vfio-pci,host=4:0:1.1,addr=1.1,bus=USB
-device vfio-pci,host=4:0:1.2,addr=1.2,bus=USB

where:
* index=7 is a QEMU PHB index (used as source for MMIO/MSI/IO windows
offset);
* iommu=4 is an IOMMU id which can be found in sysfs:
[aik@vpl2 ~]$ cd /sys/bus/pci/devices/0004:00:00.0/
[aik@vpl2 0004:00:00.0]$ ls -l iommu_group
lrwxrwxrwx 1 root root 0 Jun  5 12:49 iommu_group -> ../../../kernel/iommu_groups/4

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-27 13:48:23 +02:00
Alexey Kardashevskiy
6d8be4c343 vfio: Add vfio_container_ioctl()
While most operations with VFIO IOMMU driver are generic and used inside
vfio.c, there are still some operations which only specific VFIO IOMMU
drivers implement. The first example of it will be reading a DMA window
start from the host.

This adds a helper which passes an ioctl request to the container's fd.

The helper will check if @req is known. For this, stub is added. This return
-1 on any requests for now.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Acked-by: Alex Williamson <alex.williamson@redhat.com>
Acked-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-27 13:48:23 +02:00
Alexey Kardashevskiy
9bb62a0702 spapr_iommu: Make in-kernel TCE table optional
POWER KVM supports an KVM_CAP_SPAPR_TCE capability which allows allocating
TCE tables in the host kernel memory and handle H_PUT_TCE requests
targeted to specific LIOBN (logical bus number) right in the host without
switching to QEMU. At the moment this is used for emulated devices only
and the handler only puts TCE to the table. If the in-kernel H_PUT_TCE
handler finds a LIOBN and corresponding table, it will put a TCE to
the table and complete hypercall execution. The user space will not be
notified.

Upcoming VFIO support is going to use the same sPAPRTCETable device class
so KVM_CAP_SPAPR_TCE is going to be used as well. That means that TCE
tables for VFIO are going to be allocated in the host as well.
However VFIO operates with real IOMMU tables and simple copying of
a TCE to the real hardware TCE table will not work as guest physical
to host physical address translation is requited.

So until the host kernel gets VFIO support for H_PUT_TCE, we better not
to register VFIO's TCE in the host.

This adds a place holder for KVM_CAP_SPAPR_TCE_VFIO capability. It is not
in upstream yet and being discussed so now it is always false which means
that in-kernel VFIO acceleration is not supported.

This adds a bool @vfio_accel flag to the sPAPRTCETable device telling
that sPAPRTCETable should not try allocating TCE table in the host kernel
for VFIO. The flag is false now as at the moment there is no VFIO.

This adds an vfio_accel parameter to spapr_tce_new_table(), the semantic
is the same. Since there is only emulated PCI and VIO now, the flag is set
to false. Upcoming VFIO support will set it to true.

This is a preparation patch so no change in behaviour is expected

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-27 13:48:23 +02:00
Alexey Kardashevskiy
3a3b8502e6 spapr: Fix RTAS token numbers
At the moment spapr_rtas_register() allocates a new token number for every
new RTAS callback so numbers are not fixed and depend on the number of
supported RTAS handlers and the exact order of spapr_rtas_register() calls.
These tokens are copied into the device tree and remain the same during
the guest lifetime.

When we start another guest to receive a migration, it calls
spapr_rtas_register() as well. If the number of RTAS handlers or their
order is different in QEMU on source and destination sides, the "/rtas"
node in the device tree will differ. Since migration overwrites the device
tree (as it overwrites the entire RAM), the actual RTAS config on
the destination side gets broken.

This defines global contant values for every RTAS token which QEMU
is using today.

This changes spapr_rtas_register() to accept a token number instead of
allocating one. This changes all users of spapr_rtas_register().

This changes XICS-KVM not to cache tokens registered with KVM as they
constant now.

This makes TOKEN_BASE global as RTAS_XXX use TOKEN_BASE as
a base. TOKEN_MAX is moved and renamed too and its value is changed
to the last token + 1. Boundary checks for token values are adjusted.

This reserves token numbers for "os-term" handlers and PCI hotplug
which we are working on.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-27 13:48:22 +02:00
Alexander Graf
b3cad3abf6 PPC: Add support for Apple gdb in gdbstub
The Apple gdbstub protocol is different from the normal gdbstub protocol
used on PowerPC. Add support for the different variant, so that we can use
Apple's gdb to debug guest code.

Keep in mind that the switch is a compile time option. We can't detect
during runtime whether a gdb connecting to us is an upstream gdb or an
Apple gdb.

Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-27 13:48:22 +02:00
Sorav Bansal
294d129289 target-ppc: fixed translation of mcrxr instruction
Fixed bug in gen_mcrxr() in target-ppc/translate.c:
The XER[SO], XER[OV], and XER[CA] flags are stored in the least
significant bit (bit 0) of their respective registers. They need
to be shifted left (by their respective offsets) to generate the final
XER value. The old translation code for the 'mcrxr' instruction
was assuming that  the flags are stored in bit 2, and was shifting them
right (incorrectly)

Signed-off-by: Sorav Bansal <sbansal@cse.iitd.ernet.in>
Reviewed-by: Tom Musta <tommusta@gmail.com>
Tested-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-27 13:48:22 +02:00
Avik Sil
cc84c0f357 spapr: Add "qemu, boot-menu" property to /chosen
This is required to enable boot menu display during booting

Signed-off-by: Avik Sil <aviksil@linux.vnet.ibm.com>
Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-27 13:48:22 +02:00
Tom Musta
a60438ddd6 linux-user: Support HWCAP2 in PowerPC
Set bits in the AT_HWCAP2 entry of the AUXV.  Specifically, detect and set bits
for bctar, ISEL and ISA 2.07.

Signed-off-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-27 13:48:22 +02:00
Tom Musta
0e019746d7 linux-user: Identify Addition Hardware Capabilities for PowerPC
Add VSX, DFP and ISA 2.06 to the bits identified in the AT_HWCAP
entry of the AUXV.

Signed-off-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-27 13:48:22 +02:00
Tom Musta
b2f1355020 target-ppc: Add DFP to Emulated Instructions Flag
Decimal Floating Point is emulated, so add it the mask.  This will
fix the erroneous message:

  Warning: Disabling some instructions which are not emulated by TCG (0x0, 0x4)

Signed-off-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-27 13:48:22 +02:00
Tom Musta
623e250abd linux-user: Correct AUXV Cache Line Sizes for PowerPC
Set the AT_ICACHEBSIZE and AT_DCACHEBSIZE entries of the AUXV to match the
CPU model's cache line sizes.  This fixes memory clobbering problems on more
recent Book 3s implementations; memset(p, 0, N) will use the dcbz instruction
when N is sufficiently large and many of the newer server CPUs have cache lines
sizes of 128 bytes.

Signed-off-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-27 13:48:21 +02:00
Peter Maydell
5e80dd223d hw/net/eepro100: Implement read-only bits in MDI registers
Although we defined an eepro100_mdi_mask[] array indicating which bits
in the registers are read-only, we weren't actually doing anything with
it. Make the MDI register-write code use it rather than manually making
register 1 read-only and leaving the rest as reads-as-written. (The
special-case handling of register 0 remains as before since its mask is
all-zeros and the special casing happens before we apply the masking.)

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1402159924-13853-1-git-send-email-peter.maydell@linaro.org
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-06-27 12:23:45 +02:00
Jens Freimann
77416f4075 pc-bios/s390-ccw: update binary
Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
2014-06-27 12:11:53 +02:00
Eugene (jno) Dvurechenski
564e52b96f pc-bios/s390-ccw: IPL from LDL/CMS-formatted ECKD DASD
Add code that allows us to start from two further ECKD DASD disk
layouts: LDL (Linux disk layout) and CMS (cms-formatted disk).

Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Eugene (jno) Dvurechenski <jno@linux.vnet.ibm.com>
Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
2014-06-27 12:11:52 +02:00
Eugene (jno) Dvurechenski
e0aff4aa3f pc-bios/s390-ccw: IPL from CDL-formatted ECKD DASD
Add code that allows us to start from ECKD DASD using the z/OS
compatible disk layout (CDL), which is the most common format for ECKD
DASD.

Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Eugene (jno) Dvurechenski <jno@linux.vnet.ibm.com>
Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
2014-06-27 12:11:52 +02:00
Eugene (jno) Dvurechenski
a00b33d9e2 pc-bios/s390-ccw: factor out ipl code
Move the scsi-disk specific ipl code from zipl_load() into a new
function ipl_scsi(). This makes it easier to add ipl routines for other
disk types.

Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Eugene (jno) Dvurechenski <jno@linux.vnet.ibm.com>
Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
2014-06-27 12:11:49 +02:00
Eugene (jno) Dvurechenski
058cc1f311 pc-bios/s390-ccw: Add fill_hex_val func to provide better msgs
Factor out helper function for dumping a hex value into a buffer.

Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Eugene (jno) Dvurechenski <jno@linux.vnet.ibm.com>
Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
2014-06-27 12:10:28 +02:00
Eugene (jno) Dvurechenski
60612d5cbb pc-bios/s390-ccw: Unify error handling
Convert to IPL_assert and friends

Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Eugene (jno) Dvurechenski <jno@linux.vnet.ibm.com>
Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
2014-06-27 12:10:28 +02:00
Eugene (jno) Dvurechenski
a94b485e17 pc-bios/s390-ccw: add some utility code
IPL_assert(term,message) is introduced to handle error conditions.
ebcdic_to_ascii() to convert chars (mostly to print VOLSERs).
read_block() provision for unified block-number handling.

Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Eugene (jno) Dvurechenski <jno@linux.vnet.ibm.com>
Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
2014-06-27 12:10:28 +02:00
Eugene (jno) Dvurechenski
91a03f9b69 pc-bios/s390-ccw: handle different sector sizes
Use the virtio device's configuration to figure out the disk geometry
and use a sector size based upon the layout.

[CH: s/SECTOR_SIZE/MAX_SECTOR_SIZE/g]
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Eugene (jno) Dvurechenski <jno@linux.vnet.ibm.com>
Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
2014-06-27 12:10:03 +02:00
Eugene (jno) Dvurechenski
26f2bbd6b1 pc-bios/s390-ccw: cleanup and enhance bootmap defintions
Add declarations to describe structure of different dasd IPL sources
(eckd and fba). Move the structure definitions to a new header bootmap.h.
While we are at it, change structs to typedefs.

Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Eugene (jno) Dvurechenski <jno@linux.vnet.ibm.com>
Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
2014-06-27 11:58:47 +02:00
Eugene (jno) Dvurechenski
abd696e4f7 pc-bios/s390-ccw: make checkpatch happy
Remove tabs, tweak whitespace and comments.

Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Eugene (jno) Dvurechenski <jno@linux.vnet.ibm.com>
Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
2014-06-27 11:57:25 +02:00
Jeff Cody
d1fde4ad3c block: add qemu-iotest for resize base during live commit
If 'base' is smaller than the overlay image being committed into it,
then the base image will be grown in commit_run via bdrv_truncate().

This tests to make sure that this works, and the bdrv_truncate() is
not blocked when it shouldn't be.

Signed-off-by: Jeff Cody <jcody@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2014-06-27 11:37:54 +02:00
Jeff Cody
9c75e168bc block: check for RESIZE blocker in the QMP command, not bdrv_truncate()
If we check for the RESIZE blocker in bdrv_truncate(), that means a
commit will fail if the overlay layer is larger than the base, due to
the backing blocker.

This is a regression in behavior from 2.0; currently, commit will try to
grow the size of the base image to match the overlay size, if the
overlay size is larger.

By moving this into the QMP command qmp_block_resize(), it allows
usage of bdrv_truncate() within block jobs.

Signed-off-by: Jeff Cody <jcody@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2014-06-27 11:37:35 +02:00
Jiri Pirko
575a1c0e42 net: move queue number into NICPeers
It indicates the number of elements in ncs field and makes sense to have
int inside NICPeers. Also in parse_netdev we do not need to access
container and work with NICPeers only.

Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-06-27 11:19:31 +02:00
Anton Ivanov
3fb69aa1d1 net: L2TPv3 transport
This transport allows to connect a QEMU nic to a static Ethernet
over L2TPv3 tunnel. The transport supports all options present
in the Linux kernel implementation. It allows QEMU to connect
to any Linux host running kernel 3.3+, most routers and network
devices as well as other QEMU instances.

[Fixed up net_client_init1() switch statement to support -netdev
--Stefan]

Signed-off-by: Anton Ivanov <antivano@cisco.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-06-27 10:39:10 +02:00