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Merge remote-tracking branch 'remotes/juanquintela/tags/check/20180822' into staging
check/next for 20180822
# gpg: Signature made Wed 22 Aug 2018 09:03:40 BST
# gpg: using RSA key F487EF185872D723
# gpg: Good signature from "Juan Quintela <quintela@redhat.com>"
# gpg: aka "Juan Quintela <quintela@trasno.org>"
# Primary key fingerprint: 1899 FF8E DEBF 58CC EE03 4B82 F487 EF18 5872 D723
* remotes/juanquintela/tags/check/20180822:
check: Only test tpm devices when they are compiled in
check: Only test usb-ehci when it is compiled in
check: Only test usb-uhci devices when they are compiled in
check: Only test usb-ohci when it is compiled in
check: Only test nvme when it is compiled in
check: Only test pvpanic when it is compiled in
check: Only test wdt_ib700 when it is compiled in
check: Only test sdhci when it is compiled in
check: Only test i82801b11 when it is compiled in
check: Only test ioh3420 when it is compiled in
check: Only test ipack when it is compiled in
check: Only test hda when it is compiled in
check: Only test ac97 when it is compiled in
check: Only test es1370 when it is compiled in
check: Only test rtl8139 when it is compiled in
check: Only test pcnet when it is compiled in
check: Only test eepro100 when it is compiled in
check: Only test ne2000 when it is compiled in
check: Only test vmxnet3 when it is compiled in
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Fix MPS2 SCC config register values for the mps2-an511
and mps2-an385 boards:
* the SCC_AID bits [23:20] specify the FPGA build target board revision,
and the SCC_CFG4 register specifies the actual board revision, so
these should have matching values. Claim to be board revision C,
consistently -- we had the revision in the wrong part of SCC_AID.
* SCC_ID bits [15:4] should be the board number in hex, not decimal
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20180823175225.22612-1-peter.maydell@linaro.org
Refactor bcm2835_fb_mbox_push() to work by calling
bcm2835_fb_validate_config() and bcm2835_fb_reconfigure(),
so that config set this way is also validated.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20180814144436.679-9-peter.maydell@linaro.org
Validate the config settings that the guest tries to set.
The wiki page documentation is not really accurate here:
generally rather than failing requests to set bad parameters,
the hardware will just clip them to something sensible.
Validate the most important parameters: sizes and
the viewport offsets. This prevents the framebuffer
code from trying to read out-of-range memory.
In the property handling code, we validate the new parameters every
time we encounter a tag that sets them. This means we validate the
config multiple times if the request includes multiple config-setting
tags, but the code would require significant restructuring to do a
validation only once but still return the clipped settings for
get-parameter tags and the buffer allocation tag.
Validation of settings made via the older bcm2835_fb_mbox_push()
function will be done in the next commit.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20180814144436.679-8-peter.maydell@linaro.org
The raspi framebuffir in bcm2835_fb supports the definition
of a virtual "viewport", which is smaller than the full
physical framebuffer size and at an adjustable offset within
it. Only the viewport area is sent to the screen. This allows
the guest to do things like double buffering, or scrolling
by adjusting the viewport origin. Currently QEMU doesn't
implement this at all.
Add support for this feature:
* the property mailbox code needs to distinguish the
virtual width/height from the physical width/height
* the framebuffer code needs to do something with the
virtual width/height/origin information
Note that the wiki documentation on the semantics of the
virtual and physical height and width has it the wrong way
around -- the virtual size is the size of the allocated
buffer, and the physical size is the size of the display,
so the virtual size is always the same as or larger than
the physical.
If the viewport size is set smaller than the physical
screen size, we ignore the viewport settings completely
and just display the physical screen area.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20180814144436.679-7-peter.maydell@linaro.org
Abstract out the calculation of the pitch and size of the
framebuffer into functions that operate on the BCM2835FBConfig
struct -- these are about to get a little more complicated
when we add support for virtual and physical sizes differing.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20180814144436.679-6-peter.maydell@linaro.org
The bcm2835_fb's initial resolution and other parameters are set
via QOM properties. We should reset to those initial values on
device reset, which means we need to save the QOM property
values somewhere that they are not overwritten by guest
changes to the framebuffer configuration.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20180814144436.679-5-peter.maydell@linaro.org
The BCM2835FBState struct has a 'pitch' field which is a
cached copy of xres * (bpp >> 3), and a 'size' field which is
a cached copy of pitch * yres. However we don't actually do
anything with these fields; delete them. We retain the
now-unused slots in the VMState struct for migration
compatibility.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20180814144436.679-4-peter.maydell@linaro.org
Refactor the fb property setting code so that rather than
using a set of pointers to local variables to track
whether a config value has been updated in the current
mbox and if so what its new value is, we just copy
all the current settings of the fb at the start, and
then update that copy as we go along, before asking
the fb to switch to it at the end.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20180814144436.679-3-peter.maydell@linaro.org
The handling of framebuffer properties in the bcm2835_property code
is a bit clumsy, because for each of the many fb related properties
we try to track the value we're about to set and whether we're going
to be setting a value, and then we hand all the new values off
to the framebuffer via a function which takes them all as separate
arguments. It would be simpler if the property code could easily
copy all the framebuffer's current settings, update them with
the new specified values and then ask the framebuffer to switch
to the new set.
As the first part of this refactoring, pull all the fb config
settings fields in BCM2835FBState out into their own struct.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20180814144436.679-2-peter.maydell@linaro.org
Some of the config register values we were setting for the MPS2 SCC
weren't correct:
* the SCC_AID bits [23:20] specify the FPGA build target board revision,
and the SCC_CFG4 register specifies the actual board revision, so
these should have matching values. Claim to be board revision C,
consistently -- we had the revision in the wrong part of SCC_AID.
* SCC_ID bits [15:4] should be 0x505, not decimal 505
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20180820141116.9118-23-peter.maydell@linaro.org
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
The SPI controllers in the MPS2 AN505 board are PL022s.
We have a model of the PL022, so create these devices.
We don't currently model the LCD controller that sits behind
one of the PL022s; the others are intended to control devices
that sit on the FPGA's general purpose SPI connector or
"shield" expansion connectors.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20180820141116.9118-22-peter.maydell@linaro.org
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
In the PL022, register offset 0x20 is the ICR, a write-only
interrupt-clear register. Register offset 0x24 is DMACR, the DMA
control register. We were incorrectly implementing (a stub version
of) DMACR at 0x20, and not implementing anything at 0x24. Fix this
bug.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20180820141116.9118-21-peter.maydell@linaro.org
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
The PL022 interrupt registers have bits allocated as:
0: ROR (receive overrun)
1: RT (receive timeout)
2: RX (receive FIFO half full or less)
3: TX (transmit FIFO half full or less)
A cut and paste error meant we had the wrong value for
the PL022_INT_RT constant. This bug doesn't affect device
behaviour, because we don't implement the receive timeout
feature and so never set that interrupt bit.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20180820141116.9118-20-peter.maydell@linaro.org
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Move from the legacy SysBusDevice::init method to using
DeviceState::realize.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20180820141116.9118-19-peter.maydell@linaro.org
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Use the DeviceState vmsd pointer rather than calling vmstate_register()
directly.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20180820141116.9118-18-peter.maydell@linaro.org
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Currently the PL022 calls pl022_reset() from its class init
function. Make it register a DeviceState reset method instead,
so that we reset the device on system reset.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20180820141116.9118-17-peter.maydell@linaro.org
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Create a new include file for the pl022's device struct,
type macros, etc, so that it can be instantiated using
the "embedded struct" coding style.
While we're adding the new file to MAINTAINERS, add
also the .c file, which was missing an entry.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20180820141116.9118-16-peter.maydell@linaro.org
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
The AN505 FPGA image includes four PL081 DMA controllers, each
of which is gated by a Master Security Controller that allows
the guest to prevent a non-secure DMA controller from accessing
memory that is used by secure guest code. Create and wire
up these devices.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20180820141116.9118-15-peter.maydell@linaro.org
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
The IoTKit doesn't have any MSCs itself but it does need
some wiring to connect the external signals from MSCs
in the outer board model up to the registers and the
NVIC IRQ line.
We also need to expose a MemoryRegion corresponding to
the AHB bus, so that MSCs in the outer board model can
use that as their downstream port. (In the FPGA this is
the "AHB Slave Expansion" ports shown in the block
diagram in the AN505 documentation.)
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20180820141116.9118-14-peter.maydell@linaro.org
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
The IoTKit does not have any Master Security Contollers itself,
but it does provide registers in the secure privilege control
block which allow control of MSCs in the external system.
Add support for these registers.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20180820141116.9118-13-peter.maydell@linaro.org
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Implement a model of the TrustZone Master Securtiy Controller,
as documented in the Arm CoreLink SIE-200 System IP for
Embedded TRM (DDI0571G):
https://developer.arm.com/products/architecture/m-profile/docs/ddi0571/g
The MSC is intended to sit in front of a device which can
be a bus master (eg a DMA controller) and programmably gate
its transactions. This allows a bus-mastering device to be
controlled by non-secure code but still restricted from
making accesses to addresses which are secure-only.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20180820141116.9118-12-peter.maydell@linaro.org
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Wire up the system control element's register banks
(sysctl and sysinfo).
This is the last of the previously completely unimplemented
components in the IoTKit.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20180820141116.9118-11-peter.maydell@linaro.org
Implement the IoTKit system control element's system information
block; this is just a pair of read-only version/config registers,
plus the usual PID/CID ID registers.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20180820141116.9118-10-peter.maydell@linaro.org
The Arm IoTKit includes a system control element which
provides a block of read-only ID registers and a block
of read-write control registers. Implement a minimal
version of this.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20180820141116.9118-9-peter.maydell@linaro.org
The IoTKit has a CMSDK timer device that runs on the S32KCLK.
Create this and wire it up.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20180820141116.9118-8-peter.maydell@linaro.org
The IoTKit includes three different instances of the
CMSDK APB watchdog; create and wire them up.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20180820141116.9118-7-peter.maydell@linaro.org
The MPS2 FPGA images for the Cortex-M3 (mps2-an385 and mps2-511)
both include a CMSDK dual-timer module. Wire this up.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20180820141116.9118-6-peter.maydell@linaro.org
Now we have a model of the CMSDK dual timer, we can wire it
up in the IoTKit.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20180820141116.9118-5-peter.maydell@linaro.org
The Arm Cortex-M System Design Kit includes a "dual-input timer module"
which combines two programmable down-counters. Implement a model
of this device.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20180820141116.9118-4-peter.maydell@linaro.org
In the MPS2 FPGAIO, PSCNTR is a free-running downcounter with
a reload value configured via the PRESCALE register, and
COUNTER counts up by 1 every time PSCNTR reaches zero.
Implement these counters.
We can just increment the counters migration subsection's
version ID because we only added it in the previous commit,
so no released QEMU versions will be using it.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20180820141116.9118-3-peter.maydell@linaro.org
The MPS2 FPGAIO block includes some simple free-running counters.
Implement these.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20180820141116.9118-2-peter.maydell@linaro.org
The kernel booting specification for an AArch32 kernel requires that
it is booted in Hyp mode if available; otherwise the kernel can't
enable KVM. We were incorrectly leaving the kernel in SVC mode.
If we're booting an AArch32 kernel in the Nonsecure state and Hyp
mode is available, start in it.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Luc Michel <luc.michel@greensocs.com>
Message-id: 20180820153020.21478-7-peter.maydell@linaro.org
Add a "virtualization" property to the vexpress-a15 board,
controlling presence of EL2. As with EL3, we default to
enabling it, but the user can disable it if they have an
older guest which can't cope with it being present.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Luc Michel <luc.michel@greensocs.com>
Message-id: 20180821132811.17675-10-peter.maydell@linaro.org
Don't request that the arm_load_kernel() code should boot in secure
state if the CPU doesn't have a secure state. Currently this
doesn't make a difference because the boot.c code only examines
the secure_boot flag in code guarded by an ARM_FEATURE_EL3 check,
but upcoming changes for supporting booting into Hyp mode will
change that.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Luc Michel <luc.michel@greensocs.com>
Message-id: 20180821132811.17675-9-peter.maydell@linaro.org
For the A15MPCore internal peripheral object, we handle GIC
security extensions support by checking whether the CPUs
have EL3 enabled; if so then we enable it also on the GIC.
Handle the virtualization extensions in the same way: if the
CPU has EL2 then enable it on the GIC and wire up the
virtualization-specific memory regions and the maintenance
interrupt.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Luc Michel <luc.michel@greensocs.com>
Message-id: 20180821132811.17675-8-peter.maydell@linaro.org
Connect the VIRQ and VFIQ lines from the GIC to the CPU;
these exist always for both CPU and GIC whether the
virtualization extensions are enabled or not, so we
can just unconditionally connect them.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Luc Michel <luc.michel@greensocs.com>
Message-id: 20180821132811.17675-7-peter.maydell@linaro.org
Connect the VIRQ and VFIQ lines from the GIC to the CPU;
these exist always for both CPU and GIC whether the
virtualization extensions are enabled or not, so we
can just unconditionally connect them.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Luc Michel <luc.michel@greensocs.com>
Message-id: 20180821132811.17675-6-peter.maydell@linaro.org
Connect the VIRQ and VFIQ lines from the GIC to the CPU;
these exist always for both CPU and GIC whether the
virtualization extensions are enabled or not, so we
can just unconditionally connect them.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Luc Michel <luc.michel@greensocs.com>
Message-id: 20180821132811.17675-5-peter.maydell@linaro.org
Connect the VIRQ and VFIQ lines from the GIC to the CPU;
these exist always for both CPU and GIC whether the
virtualization extensions are enabled or not, so we
can just unconditionally connect them.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Luc Michel <luc.michel@greensocs.com>
Message-id: 20180821132811.17675-4-peter.maydell@linaro.org
Reduce the size of the per-cpu GICH memory regions from 0x1000
to 0x200. The registers only cover 0x200 bytes, and the Cortex-A15
wants to map them at a spacing of 0x200 bytes apart. Having the
region be too large interferes with mapping them like that, so
reduce it.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Luc Michel <luc.michel@greensocs.com>
Message-id: 20180821132811.17675-3-peter.maydell@linaro.org
* qumu-guest-agent freeze-hook tweak (Christian)
* pm_smbus improvements (Corey)
* Move validation to pre_plug for pc-dimm (David)
* Fix memory leaks (Eduardo, Marc-André)
* synchronization profiler (Emilio)
* Convert the CPU list to RCU (Emilio)
* LSI support for PPR Extended Message (George)
* vhost-scsi support for protection information (Greg)
* Mark mptsas as a storage device in the help (Guenter)
* checkpatch tweak cherry-picked from Linux (me)
* Typos, cleanups and dead-code removal (Julia, Marc-André)
* qemu-pr-helper support for old libmultipath (Murilo)
* Annotate fallthroughs (me)
* MemoryRegionOps cleanup (me, Peter)
* Make s390 qtests independent from libqos, which doesn't actually support it (me)
* Make cpu_get_ticks independent from BQL (me)
* Introspection fixes (Thomas)
* Support QEMU_MODULE_DIR environment variable (ryang)
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Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging
* x86 TCG fixes for 64-bit call gates (Andrew)
* qumu-guest-agent freeze-hook tweak (Christian)
* pm_smbus improvements (Corey)
* Move validation to pre_plug for pc-dimm (David)
* Fix memory leaks (Eduardo, Marc-André)
* synchronization profiler (Emilio)
* Convert the CPU list to RCU (Emilio)
* LSI support for PPR Extended Message (George)
* vhost-scsi support for protection information (Greg)
* Mark mptsas as a storage device in the help (Guenter)
* checkpatch tweak cherry-picked from Linux (me)
* Typos, cleanups and dead-code removal (Julia, Marc-André)
* qemu-pr-helper support for old libmultipath (Murilo)
* Annotate fallthroughs (me)
* MemoryRegionOps cleanup (me, Peter)
* Make s390 qtests independent from libqos, which doesn't actually support it (me)
* Make cpu_get_ticks independent from BQL (me)
* Introspection fixes (Thomas)
* Support QEMU_MODULE_DIR environment variable (ryang)
# gpg: Signature made Thu 23 Aug 2018 17:46:30 BST
# gpg: using RSA key BFFBD25F78C7AE83
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>"
# gpg: aka "Paolo Bonzini <pbonzini@redhat.com>"
# Primary key fingerprint: 46F5 9FBD 57D6 12E7 BFD4 E2F7 7E15 100C CD36 69B1
# Subkey fingerprint: F133 3857 4B66 2389 866C 7682 BFFB D25F 78C7 AE83
* remotes/bonzini/tags/for-upstream: (69 commits)
KVM: cleanup unnecessary #ifdef KVM_CAP_...
target/i386: update MPX flags when CPL changes
i2c: pm_smbus: Add the ability to force block transfer enable
i2c: pm_smbus: Don't delay host status register busy bit when interrupts are enabled
i2c: pm_smbus: Add interrupt handling
i2c: pm_smbus: Add block transfer capability
i2c: pm_smbus: Make the I2C block read command read-only
i2c: pm_smbus: Fix the semantics of block I2C transfers
i2c: pm_smbus: Clean up some style issues
pc-dimm: assign and verify the "addr" property during pre_plug
pc: drop memory region alignment check for 0
util/oslib-win32: indicate alignment for qemu_anon_ram_alloc()
pc-dimm: assign and verify the "slot" property during pre_plug
ipmi: Use proper struct reference for BT vmstate
vhost-scsi: expose 't10_pi' property for VIRTIO_SCSI_F_T10_PI
vhost-scsi: unify vhost-scsi get_features implementations
vhost-user-scsi: move host_features into VHostSCSICommon
cpus: allow cpu_get_ticks out of BQL
cpus: protect TimerState writes with a spinlock
seqlock: add QemuLockable support
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
The PIIX4 hardware has block transfer buffer always enabled in
the hardware, but the i801 does not. Add a parameter to pm_smbus_init
to force on the block transfer so the PIIX4 handler can enable this
by default, as it was disabled by default before.
Signed-off-by: Corey Minyard <cminyard@mvista.com>
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <1534796770-10295-9-git-send-email-minyard@acm.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Change 880b1ffe6e "smbus: do not immediately complete commands"
changed pm_smbus to delay setting the host busy bit until the status
register was read, to work around a bug in AMIBIOS. Unfortunately,
when interrupts are enabled, the status register will never get read
and the processing will never happen.
Modify the code to only delay setting the host busy bit if interrupts
are not enabled.
Signed-off-by: Corey Minyard <cminyard@mvista.com>
Cc: Hervé Poussineau <hpoussin@reactos.org>
Cc: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <1534796770-10295-8-git-send-email-minyard@acm.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Add the necessary code so that interrupts actually work from
the pm_smbus device.
Signed-off-by: Corey Minyard <cminyard@mvista.com>
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <1534796770-10295-7-git-send-email-minyard@acm.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
There was no block transfer code in pm_smbus.c, and it is needed
for some devices. So add it.
This adds both byte-by-byte block transfers and buffered block
transfers.
Signed-off-by: Corey Minyard <cminyard@mvista.com>
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <1534796770-10295-5-git-send-email-minyard@acm.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
It did have write capability, but the manual says the behavior
with write enabled is undefined. So just set an error in this
case.
Signed-off-by: Corey Minyard <cminyard@mvista.com>
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <1534796770-10295-4-git-send-email-minyard@acm.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The I2C block transfer commands was not implemented correctly, it
read a length byte and such like it was an smbus transfer.
So fix the smbus_read_block() and smbus_write_block() functions
so they can properly handle I2C transfers, and normal SMBus
transfers (for upcoming changes). Pass in a transfer size and
a bool to know whether to use the size byte (like SMBus) or use
the length given (like I2C).
Signed-off-by: Corey Minyard <cminyard@mvista.com>
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <1534796770-10295-3-git-send-email-minyard@acm.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Fix some spacing issues, remove extraneous comments, add some
defines instead of hard-coding numbers.
Signed-off-by: Corey Minyard <cminyard@mvista.com>
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <1534796770-10295-2-git-send-email-minyard@acm.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
We can assign and verify the address before realizing and trying to plug.
reading/writing the address property should never fail for DIMMs, so let's
reduce error handling a bit by using &error_abort. Getting access to the
memory region now might however fail. So forward errors from
get_memory_region() properly.
As all memory devices should use the alignment of the underlying memory
region for guest physical address asignment, do detection of the
alignment in pc_dimm_pre_plug(), but allow pc.c to overwrite the
alignment for compatibility handling.
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20180801133444.11269-5-david@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
