Commit Graph

63486 Commits

Author SHA1 Message Date
Peter Maydell
81a75deb1a hw/misc/iotkit-secctl: Wire up registers for controlling MSCs
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>
2018-08-24 13:17:44 +01:00
Peter Maydell
211e701d66 hw/misc/tz-msc: Model TrustZone Master Security Controller
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>
2018-08-24 13:17:43 +01:00
Peter Maydell
06e65af39b hw/misc/iotkit: Wire up the sysctl and sysinfo register blocks
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
2018-08-24 13:17:43 +01:00
Peter Maydell
c667a25b32 hw/misc/iotkit-sysinfo: Implement IoTKit system information block
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
2018-08-24 13:17:43 +01:00
Peter Maydell
75750e4d43 hw/misc/iotkit-sysctl: Implement IoTKit system control element
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
2018-08-24 13:17:42 +01:00
Peter Maydell
e2d203baba hw/arm/iotkit: Wire up the S32KTIMER
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
2018-08-24 13:17:42 +01:00
Peter Maydell
d61e4e1ff7 hw/arm/iotkit: Wire up the watchdogs
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
2018-08-24 13:17:42 +01:00
Peter Maydell
595c786b53 hw/arm/mps2: Wire up dual-timer in mps2-an385 and mps2-an511
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
2018-08-24 13:17:42 +01:00
Peter Maydell
017d069d20 hw/arm/iotkit: Wire up the dualtimer
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
2018-08-24 13:17:41 +01:00
Peter Maydell
4f4c6206ca hw/timer/cmsdk-apb-dualtimer: Implement CMSDK dual timer module
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
2018-08-24 13:17:41 +01:00
Peter Maydell
93739075d2 hw/misc/mps2-fpgaio: Implement PSCNTR and COUNTER
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
2018-08-24 13:17:40 +01:00
Peter Maydell
a1982f90a4 hw/misc/mps2-fpgaio: Implement 1Hz and 100Hz counters
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
2018-08-24 13:17:40 +01:00
Peter Maydell
299953b989 hw/arm/boot: AArch32 kernels should be started in Hyp mode if available
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
2018-08-24 13:17:39 +01:00
Peter Maydell
829f9fd394 target/arm: Clear CPSR.IL and CPSR.J on 32-bit exception entry
On 32-bit exception entry, CPSR.J must always be set to 0
(see v7A Arm ARM DDI0406C.c B1.8.5). CPSR.IL must also
be cleared on 32-bit exception entry (see v8A Arm ARM
DDI0487C.a G1.10).

Clear these bits. (This fixes a bug which will never be noticed
by non-buggy guests.)

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: 20180820153020.21478-6-peter.maydell@linaro.org
2018-08-24 13:17:38 +01:00
Peter Maydell
b9bc21ff9f target/arm: Implement support for taking exceptions to Hyp mode
Implement the necessary support code for taking exceptions
to Hyp mode in AArch32.

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: 20180820153020.21478-5-peter.maydell@linaro.org
2018-08-24 13:17:38 +01:00
Peter Maydell
dea8378bb3 target/arm: Factor out code for taking an AArch32 exception
Factor out the code which changes the CPU state so as to
actually take an exception to AArch32. We're going to want
to use this for handling exception entry to Hyp mode.

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: 20180820153020.21478-4-peter.maydell@linaro.org
2018-08-24 13:17:37 +01:00
Peter Maydell
ce4afed839 target/arm: Implement AArch32 HCR and HCR2
The AArch32 HCR and HCR2 registers alias HCR_EL2
bits [31:0] and [63:32]; implement them.

Since HCR2 exists in ARMv8 but not ARMv7, we need new
regdef arrays for "we have EL3, not EL2, we're ARMv8"
and "we have EL2, we're ARMv8" to hold the definitions.

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: 20180820153020.21478-3-peter.maydell@linaro.org
2018-08-24 13:17:37 +01:00
Peter Maydell
0e0456ab88 target/arm: Implement RAZ/WI HACTLR2
The v8 AArch32 HACTLR2 register maps to bits [63:32] of ACTLR_EL2.
We implement ACTLR_EL2 as RAZ/WI, so make HACTLR2 also RAZ/WI.
(We put the regdef next to ACTLR_EL2 as a reminder in case we
ever make ACTLR_EL2 something other than RAZ/WI).

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: 20180820153020.21478-2-peter.maydell@linaro.org
2018-08-24 13:17:36 +01:00
Peter Maydell
cac0d80809 hw/arm/vexpress: Add "virtualization" property controlling presence of EL2
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
2018-08-24 13:17:35 +01:00
Peter Maydell
3921019abc hw/arm/vexpress: Don't set info->secure_boot if CPU doesn't have EL3
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
2018-08-24 13:17:35 +01:00
Peter Maydell
ba3287d117 hw/cpu/a15mpcore: If CPU has EL2, enable it on the GIC and wire it up
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
2018-08-24 13:17:34 +01:00
Peter Maydell
b558e29521 hw/arm/fsl-imx6ul: Connect VIRQ and VFIQ
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
2018-08-24 13:17:34 +01:00
Peter Maydell
256d3e21f2 hw/arm/fsl-imx6ul: Connect VIRQ and VFIQ
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
2018-08-24 13:17:33 +01:00
Peter Maydell
582c8f75a2 hw/arm/highbank: Connect VIRQ and VFIQ
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
2018-08-24 13:17:33 +01:00
Peter Maydell
33383e9bbb hw/arm/vexpress: Connect VIRQ and VFIQ
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
2018-08-24 13:17:32 +01:00
Peter Maydell
7210918cad hw/intc/arm_gic: Make per-cpu GICH memory regions 0x200 bytes large
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
2018-08-24 13:17:31 +01:00
Richard Henderson
323cd49084 target/arm: Use the float-to-int-scale softfloat routines
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20180814002653.12828-5-richard.henderson@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-08-24 13:17:31 +01:00
Richard Henderson
b9b903cf24 target/arm: Use the int-to-float-scale softfloat routines
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20180814002653.12828-4-richard.henderson@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-08-24 13:17:30 +01:00
Richard Henderson
2f6c74be59 softfloat: Add scaling float-to-int routines
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20180814002653.12828-3-richard.henderson@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-08-24 13:17:30 +01:00
Richard Henderson
2abdfe2440 softfloat: Add scaling int-to-float routines
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20180814002653.12828-2-richard.henderson@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-08-24 13:17:29 +01:00
Peter Maydell
6b699ae1be tests/vm: Increase timeout waiting for VM to boot to 5 minutes
The VM tests currently have a timeout of 2 minutes for trying
to connect to ssh. Since the guest VM has to boot from cold
to the point of accepting inbound ssh during this time, if the
host machine is heavily loaded it can spuriously time out.
Increase the timeout from 2 to 5 minutes.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Acked-by: Fam Zheng <famz@redhat.com>
Message-id: 20180823112153.15279-1-peter.maydell@linaro.org
2018-08-24 11:31:28 +01:00
Peter Maydell
3c825bb7c1 * 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)
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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>
2018-08-23 19:03:54 +01:00
Paolo Bonzini
b2e78fac6f KVM: cleanup unnecessary #ifdef KVM_CAP_...
The capability macros are always defined, since they come from kernel
headers that are copied into the QEMU tree.  Remove the unnecessary #ifdefs.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-08-23 18:46:25 +02:00
Paolo Bonzini
5e76d84e69 target/i386: update MPX flags when CPL changes
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-08-23 18:46:25 +02:00
Corey Minyard
45726b6e2c i2c: pm_smbus: Add the ability to force block transfer enable
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>
2018-08-23 18:46:25 +02:00
Corey Minyard
12bd93c150 i2c: pm_smbus: Don't delay host status register busy bit when interrupts are enabled
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>
2018-08-23 18:46:25 +02:00
Corey Minyard
e724385a70 i2c: pm_smbus: Add interrupt handling
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>
2018-08-23 18:46:25 +02:00
Corey Minyard
38ad4fae43 i2c: pm_smbus: Add block transfer capability
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>
2018-08-23 18:46:25 +02:00
Corey Minyard
00bdfeab15 i2c: pm_smbus: Make the I2C block read command read-only
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>
2018-08-23 18:46:25 +02:00
Corey Minyard
4b615be540 i2c: pm_smbus: Fix the semantics of block I2C transfers
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>
2018-08-23 18:46:25 +02:00
Corey Minyard
b8fb9043eb i2c: pm_smbus: Clean up some style issues
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>
2018-08-23 18:46:25 +02:00
David Hildenbrand
b0e624435b pc-dimm: assign and verify the "addr" property during pre_plug
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>
2018-08-23 18:46:25 +02:00
David Hildenbrand
57f0b73cf8 pc: drop memory region alignment check for 0
All applicable memory regions always have an alignment > 0. All memory
backends result in file_ram_alloc() or qemu_anon_ram_alloc() getting
called, setting the alignment to > 0.

So a PCDIMM memory region always has an alignment > 0. NVDIMM copy the
alignment of the original memory memory region into the handcrafted memory
region that will be used at this place.

So the check for 0 can be dropped and we can reduce the special
handling.

Dropping this check makes factoring out of alignment handling easier as
compat handling only has to look at pcmc->enforce_aligned_dimm and not
care about the alignment of the memory region.

Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20180801133444.11269-4-david@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-08-23 18:46:25 +02:00
David Hildenbrand
714efd540c util/oslib-win32: indicate alignment for qemu_anon_ram_alloc()
Let's set the alignment just like for the posix variant. This will
implicitly set the alignment of the underlying memory region and
therefore make memory_region_get_alignment(mr) return something > 0 for
all memory backends applicable to PCDIMM/NVDIMM.

The allocation granularity is ususally 64k, while the page size is 4k.
The documentation of VirtualAlloc is not really comprehensible in case
only MEM_COMMIT is specified without an address. We'll detect the actual
values and then go for the bigger one. The expection is, that it will
always be 64k aligned. (The assumption is that MEM_COMMIT does an
implicit MEM_RESERVE, so the address will always be aligned to the
allocation granularity. And the allocation granularity is always bigger
than the page size).

This will allow us to drop special handling in pc.c for
memory_region_get_alignment(mr) == 0, as we can then assume that it is
always set (and AFAICS >= getpagesize()).

For pc in pc_memory_plug(), under Windows TARGET_PAGE_SIZE == getpagesize(),
therefore alignment of DIMMs will not change, and therefore also not the
guest physical memory layout.

For spapr in spapr_memory_plug(), an alignment of 0 would have been used
until now. As QEMU_ALIGN_UP will crash with the alignment being 0, this
never worked, so we don't have to care about compatibility handling.

Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20180801133444.11269-3-david@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-08-23 18:46:25 +02:00
David Hildenbrand
8f1ffe5be8 pc-dimm: assign and verify the "slot" property during pre_plug
We can assign and verify the slot before realizing and trying to plug.
reading/writing the slot property should never fail, so let's reduce
error handling a bit by using &error_abort.

To do this during pre_plug, add and use (x86, ppc) pc_dimm_pre_plug().

Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20180801133444.11269-2-david@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-08-23 18:46:25 +02:00
Corey Minyard
efbb649da0 ipmi: Use proper struct reference for BT vmstate
The vmstate for isa_ipmi_bt was referencing into the bt structure,
instead create a bt structure separate and use that.

The version 1 of the BT transfer was fairly broken, if a migration
occured during an IPMI operation, it is likely the migration would
be corrupted because I misunderstood the VMSTATE_VBUFFER_UINT32()
handling, I thought it handled transferring the length field,
too.  So I just remove support for that.  I doubt anyone is using
it at this point.

This also removes the transfer of use_irq, since that should come
from configuration.

Signed-off-by: Corey Minyard <cminyard@mvista.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-Id: <1534798644-13587-1-git-send-email-minyard@acm.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-08-23 18:46:25 +02:00
Greg Edwards
f287fdd94e vhost-scsi: expose 't10_pi' property for VIRTIO_SCSI_F_T10_PI
Allow toggling on/off the VIRTIO_SCSI_F_T10_PI feature bit for both
vhost-scsi and vhost-user-scsi devices.

Signed-off-by: Greg Edwards <gedwards@ddn.com>
Message-Id: <20180808195235.5843-4-gedwards@ddn.com>
Reviewed-by: Felipe Franciosi <felipe@nutanix.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-08-23 18:46:25 +02:00
Greg Edwards
b1110d833c vhost-scsi: unify vhost-scsi get_features implementations
Move the enablement of preset host features into the common
vhost_scsi_common_get_features() function.  This is in preparation for
having vhost-scsi also make use of host_features.

Signed-off-by: Greg Edwards <gedwards@ddn.com>
Message-Id: <20180808195235.5843-3-gedwards@ddn.com>
Reviewed-by: Felipe Franciosi <felipe@nutanix.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-08-23 18:46:25 +02:00
Greg Edwards
eb5757fcbe vhost-user-scsi: move host_features into VHostSCSICommon
In preparation for having vhost-scsi also make use of host_features,
move it from struct VHostUserSCSI into struct VHostSCSICommon.

Signed-off-by: Greg Edwards <gedwards@ddn.com>
Message-Id: <20180808195235.5843-2-gedwards@ddn.com>
Reviewed-by: Felipe Franciosi <felipe@nutanix.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-08-23 18:46:25 +02:00
Paolo Bonzini
f2a4ad6d49 cpus: allow cpu_get_ticks out of BQL
Because of cpu_ticks_prev, we cannot use a seqlock.  But then the conversion
is even easier. :)

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-08-23 18:46:25 +02:00