There are two known cases of DASD format where signatures are
incomplete or absent:
1. result of <dasdfmt -d ldl -L ...> (ECKD_LDL_UNLABELED)
2. CDL with zero keys in IPL1 and IPL2 records
Now the code attempts to
1. find zIPL and use SCSI layout
2. find IPL1 and use CDL layout
3. find CMS1 and use LDL layout
3. find LNX1 and use LDL layout
4. find zIPL and use unlabeled LDL layout
5. find zIPL and use CDL layout
6. die
in this sequence.
Signed-off-by: Eugene (jno) Dvurechenski <jno@linux.vnet.ibm.com>
Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
For EAV ECKD DASD, the cylinder count will have the magic value
0xfffeU. Therefore, use the block number to test for valid eckd
addresses instead.
Signed-off-by: Eugene (jno) Dvurechenski <jno@linux.vnet.ibm.com>
Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Using dasdfmt(8) to format a DASD allows to choose a block size.
There are four supported values: 512, 1024, 2048, and 4096 bytes
per block. Each block size leads to selection of new count of
sectors per track. The head count remains always the same: 15.
This empiric knowledge is used to detect ECKD DASD to IPL from.
Signed-off-by: Eugene (jno) Dvurechenski <jno@linux.vnet.ibm.com>
Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
The block size value may be given "as is" OR as a base value and
a shift count (exponent). So, we have to use calculation to get
the proper number in the code.
The main expression reads as
(blk_cfg.blk_size << blk_cfg.physical_block_exp)
E.g., various combinations between blk_size=1/physical_block_exp=12
and blk_size=4096/physical_block_exp=0 are valid for 4K blocks.
Signed-off-by: Eugene (jno) Dvurechenski <jno@linux.vnet.ibm.com>
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
As all full cpu resets currently call into the kernel to do initial cpu reset,
let's run this reset (triggered by cpu_s390x_init()) on the proper vcpu thread.
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Let's execute resets triggered by qemu system resets on the target vcpu thread.
This will avoid synchronize_rcu's in the kernel.
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
All sigp orders that can result in ioctls on the target vcpu should be executed
on the associated vcpu thread.
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Currently, load_normal_reset() and modified_clear_reset() as triggered
by a guest vcpu will initiate cpu resets on the current vcpu thread for
all cpus. The reset should happen on the individual vcpu thread
instead, so let's use run_on_cpu() for this.
This avoids calls to synchronize_rcu() in the kernel.
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
* support PMCCNTR in ARMv8
* various GIC fixes and cleanups
* Correct Cortex-A57 ISAR5 and AA64ISAR0 ID register values
* Fix regression that disabled VFP for ARMv5 CPUs
* Update to upstream VIXL 1.5
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Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20140829' into staging
target-arm queue:
* support PMCCNTR in ARMv8
* various GIC fixes and cleanups
* Correct Cortex-A57 ISAR5 and AA64ISAR0 ID register values
* Fix regression that disabled VFP for ARMv5 CPUs
* Update to upstream VIXL 1.5
# gpg: Signature made Fri 29 Aug 2014 15:34:47 BST using RSA key ID 14360CDE
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>"
* remotes/pmaydell/tags/pull-target-arm-20140829:
target-arm: Implement pmccfiltr_write function
target-arm: Remove old code and replace with new functions
target-arm: Implement pmccntr_sync function
target-arm: Add arm_ccnt_enabled function
target-arm: Implement PMCCNTR_EL0 and related registers
arm: Implement PMCCNTR 32b read-modify-write
target-arm: Make the ARM PMCCNTR register 64-bit
hw/intc/arm_gic: honor target mask in gic_update()
aarch64: raise max_cpus to 8
arm_gic: Use GIC_NR_SGIS constant
arm_gic: Do not force PPIs to edge-triggered mode
arm_gic: GICD_ICFGR: Write model only for pre v1 GICs
arm_gic: Fix read of GICD_ICFGR
target-arm: Correct Cortex-A57 ISAR5 and AA64ISAR0 ID register values
target-arm: Fix regression that disabled VFP for ARMv5 CPUs
disas/libvixl: Update to upstream VIXL 1.5
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This is the function that is called when writing to the
PMCCFILTR_EL0 register
Signed-off-by: Alistair Francis <alistair.francis@xilinx.com>
Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Message-id: 73da3da6404855b17d5ae82975a32ff3a4dcae3d.1409025949.git.peter.crosthwaite@xilinx.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Remove the old PMCCNTR code and replace it with calls to the new
pmccntr_sync() and arm_ccnt_enabled() functions.
Signed-off-by: Alistair Francis <alistair.francis@xilinx.com>
Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Message-id: 693a6e437d915c2195fd3dc7303f384ca538b7bf.1409025949.git.peter.crosthwaite@xilinx.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This is used to synchronise the PMCCNTR counter and swap its
state between enabled and disabled if required. It must always
be called twice, both before and after any logic that could
change the state of the PMCCNTR counter.
Signed-off-by: Alistair Francis <alistair.francis@xilinx.com>
Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Message-id: 62811d4c0f7b1384f7aab62ea2fcfda3dcb0db50.1409025949.git.peter.crosthwaite@xilinx.com
[PMM: fixed minor typos in pmccntr_sync doc comment]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Include a helper function to determine if the CCNT counter
is enabled.
Signed-off-by: Alistair Francis <alistair.francis@xilinx.com>
Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Message-id: e1a64f17a756e06c8bda8238ad4826d705049f7a.1409025949.git.peter.crosthwaite@xilinx.com
[ PC changes
* Remove EL based checks
]
Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This patch adds support for the ARMv8 version of the PMCCNTR and
related registers. It also starts to implement the PMCCFILTR_EL0
register.
Signed-off-by: Alistair Francis <alistair.francis@xilinx.com>
Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Message-id: b5d1094764a5416363ee95216799b394ecd011e8.1409025949.git.peter.crosthwaite@xilinx.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
The register is now 64bit, however a 32 bit write to the register
should leave the higher bits unchanged. The open coded write handler
does not implement this, so we need to read-modify-write accordingly.
Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Reviewed-by: Alistair Francis <alistair23@gmail.com>
Message-id: ec350573424bb2adc1701c3b9278d26598e2f2d1.1409025949.git.peter.crosthwaite@xilinx.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This makes the PMCCNTR register 64-bit to allow for the
64-bit ARMv8 version.
Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Signed-off-by: Alistair Francis <alistair.francis@xilinx.com>
Message-id: 6c5bac5fd0ea54963b1fc0e7f9464909f2e19a73.1409025949.git.peter.crosthwaite@xilinx.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Take IRQ target mask into account when determining the highest priority
pending interrupt.
Signed-off-by: Sergey Fedorov <serge.fdrv@gmail.com>
Acked-by: Christoffer Dall <christoffer.dall@linaro.org>
Message-id: 1407947471-26981-1-git-send-email-serge.fdrv@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
I'm running on a system with 8 cpus and it would be nice to have qemu
support all of them. The attached patch does that and has been tested.
That said, I'm not sure if 8 is enough or if we want to bump this even higher
now before systems with many more cpus come along. 255 anyone?
Cc: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Joel Schopp <joel.schopp@amd.com>
Message-id: 20140819213304.19537.2834.stgit@joelaarch64.amd.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Use constant rather than a plain number.
Acked-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Adam Lackorzynski <adam@os.inf.tu-dresden.de>
Message-id: 1408372255-12358-5-git-send-email-adam@os.inf.tu-dresden.de
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Only SGIs must be WI, done by forcing them to their default
(edge-triggered).
Acked-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Adam Lackorzynski <adam@os.inf.tu-dresden.de>
Message-id: 1408372255-12358-4-git-send-email-adam@os.inf.tu-dresden.de
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Setting the model is only available in pre-v1 GIC models.
Acked-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Adam Lackorzynski <adam@os.inf.tu-dresden.de>
Message-id: 1408372255-12358-3-git-send-email-adam@os.inf.tu-dresden.de
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
The GICD_ICFGR register covers 4 interrupts per byte.
Acked-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Adam Lackorzynski <adam@os.inf.tu-dresden.de>
Message-id: 1408372255-12358-2-git-send-email-adam@os.inf.tu-dresden.de
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
We implement the crypto extensions but were incorrectly reporting
ID register values for the Cortex-A57 which did not advertise
crypto. Use the correct values as described in the TRM.
With this fix Linux correctly detects presence of the crypto
features and advertises them in /proc/cpuinfo.
Reported-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1408718660-7295-1-git-send-email-peter.maydell@linaro.org
Cc: qemu-stable@nongnu.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Commit 2c7ffc414 added support for honouring the CPACR coprocessor
access control register bits which may disable access to VFP
and Neon instructions. However it failed to account for the
fact that the CPACR is only present starting from the ARMv6
architecture version, so it accidentally disabled VFP completely
for ARMv5 CPUs like the ARM926. Linux would detect this as
"no VFP present" and probably fall back to its own emulation,
but other guest OSes might crash or misbehave.
This fixes bug LP:1359930.
Reported-by: Jakub Jermar <jakub@jermar.eu>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1408714940-7192-1-git-send-email-peter.maydell@linaro.org
Cc: qemu-stable@nongnu.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Update our copy of libvixl to upstream's 1.5 release.
This includes the upstream versions of the fixes we
were carrying locally (commit ffebe899).
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1407162987-4659-1-git-send-email-peter.maydell@linaro.org
since hotunplug the ehci host adapter, we should
delete vm_change_state_handler also, so the
VMChangeStateEntry should be saved in EHCIState.
Signed-off-by: Gonglei <arei.gonglei@huawei.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
add global variables releasing logic when the usb buses
were removed or hot-unpluged.
Signed-off-by: Gonglei <arei.gonglei@huawei.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
There appears to be typo in OHCI with isochronous transfers
resulting in isoch. transfer descriptor state never being written back.
The'put_words' function is in a OR statement hence it is never called.
Signed-off-by: Jack Un <jack.un@gmail.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
after commit 003e15a180
the DPRINTF will broke compiling, adjust its location.
Signed-off-by: Gonglei <arei.gonglei@huawei.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
We identify devices by their Open Firmware device paths. The encoding
of the host controller and hub port numbers is incorrect:
usb_get_fw_dev_path() formats them in decimal, while SeaBIOS uses
hexadecimal. When some port number > 9, SeaBIOS will miss the
bootindex (lucky case), or apply it to another device (unlucky case).
The relevant spec[*] agrees with SeaBIOS (and OVMF, for that matter).
Change %d to %x.
Bug can bite only with host controllers or hubs sporting more than ten
ports. I'm not aware of any.
[*] Open Firmware Recommended Practice: Universal Serial Bus,
Version 1, Section 3.2.1 Device Node Address Representation
http://www.openfirmware.org/1275/bindings/usb/usb-1_0.ps
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Note: xhci can be configured with up to 15 ports (default is 4 ports).
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
reporting from Fam and a fix for DPRINTF bitrot. Memory patches try
again to initialize name from the QOM name.
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Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging
SCSI patches include bug fixes from Fam and Peter, improved error
reporting from Fam and a fix for DPRINTF bitrot. Memory patches try
again to initialize name from the QOM name.
# gpg: Signature made Thu 28 Aug 2014 15:10:31 BST using RSA key ID 9B4D86F2
# gpg: Good signature from "Paolo Bonzini <pbonzini@redhat.com>"
# gpg: aka "Paolo Bonzini <bonzini@gnu.org>"
* remotes/bonzini/tags/for-upstream:
memory: Lazy init name from QOM name as needed
xen: hvm: Abstract away memory region name ref
xen-hvm: Constify string
virtio-scsi: Report error if num_queues is 0 or too large
scsi-generic: remove superfluous DPRINTF avoid to break compiling
block/iscsi: fix memory corruption on iscsi resize
scsi-bus: Convert DeviceClass init to realize
block: Pass errp in blkconf_geometry
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
of the NMI monitor command.
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Merge remote-tracking branch 'remotes/kvm/tags/for-upstream' into staging
Mostly bugfixes + Alexey's interface-based implementation
of the NMI monitor command.
# gpg: Signature made Thu 28 Aug 2014 15:07:22 BST using RSA key ID 9B4D86F2
# gpg: Good signature from "Paolo Bonzini <pbonzini@redhat.com>"
# gpg: aka "Paolo Bonzini <bonzini@gnu.org>"
* remotes/kvm/tags/for-upstream:
mc146818rtc: reinitialize irq_reinject_on_ack_count on reset
target-i386: Add "tsc_adjust" CPU feature name
target-i386: Add "mpx" CPU feature name
vl: process -object after other backend options
checkpatch.pl: adjust typedef definition to QEMU coding style
x86: Clear MTRRs on vCPU reset
x86: kvm: Add MTRR support for kvm_get|put_msrs()
x86: Use common variable range MTRR counts
target-i386: Don't forbid NX bit on PAE PDEs and PTEs
spapr: Add support for new NMI interface
s390x: Migrate to new NMI interface
s390x: Convert QEMUMachine to MachineClass
cpus: Define callback for QEMU "nmi" command
kvm: run cpu state synchronization on target vcpu thread
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
To support name retrieval of MemoryRegions that were created
dynamically (that is, not via memory_region_init and friends). We
cache the name in MemoryRegion's state as
object_get_canonical_path_component mallocs the returned value
so it's not suitable for direct return to callers. Memory already
frees the name field, so this will be garbage collected along with
the MR object.
Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The mr->name field is removed. This slipped through compile testing.
Fix.
Reviewed-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
It's constant, and sourced from existing const strings. Avoid dodgy
casts by converting to const.
Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Reviewed-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
