error: unneeded late initalization
Error: --> arch/src/aarch64/gic/gicv3_its.rs:127:9
|
127 | let attr: u64;
| ^^^^^^^^^^^^^^
|
= note: `-D clippy::needless-late-init` implied by `-D warnings`
= help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_late_init
help: declare `attr` here
|
128 | let attr: u64 = if save {
| +++++++++++++++
help: remove the assignments from the branches
|
129 ~ u64::from(kvm_bindings::KVM_DEV_ARM_ITS_SAVE_TABLES)
130 | } else {
131 ~ u64::from(kvm_bindings::KVM_DEV_ARM_ITS_RESTORE_TABLES)
|
help: add a semicolon after the `if` expression
|
132 | };
| +
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
Move the definition of MSI space to layout.rs, so other crates can
reference it. Now it is needed by virtio-iommu.
Signed-off-by: Michael Zhao <michael.zhao@arm.com>
This commit implements the GIC (including both GICv3 and GICv3ITS)
Pausable trait. The pause of device manager will trigger a "pause"
of GIC, where we flush GIC pending tables and ITS tables to the
guest RAM.
Signed-off-by: Henry Wang <Henry.Wang@arm.com>
If GICR_CTLR is restored before GICR_PROPBASER and GICR_PENDBASER,
the restoring of the latter registers will fail, as the LPI enable
bit is already set in GICR_CTLR. Therefore, in this commit, the
order of restoring GICR registers is changed.
Signed-off-by: Jianyong Wu <jianyong.wu@arm.com>
This commit implements the GicV3Its Snapshottable trait, including:
- GicV3Its state: GIC registers and ITS registers
- Save/restore logic of GicV3Its state
Signed-off-by: Henry Wang <Henry.Wang@arm.com>
This commit implements two helper functions `gicv3_its_attr_access`
and `gicv3_its_tables_access` to access ITS device attributes and
ITS tables.
Signed-off-by: Henry Wang <Henry.Wang@arm.com>
In current code, the ITS device fd of GICv3 will be lost after the
creation of GIC. This commit adds a new `its_device` field for the
`GicV3Its` struct, which will be useful to save the ITS device fd.
This fd will be used in restoring the ITS device.
Signed-off-by: Henry Wang <Henry.Wang@arm.com>
Issue from beta verion of clippy:
Error: --> vm-virtio/src/queue.rs:700:59
|
700 | if let Some(used_event) = self.get_used_event(&mem) {
| ^^^^ help: change this to: `mem`
|
= note: `-D clippy::needless-borrow` implied by `-D warnings`
= help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
Signed-off-by: Bo Chen <chen.bo@intel.com>
The function used to calculate "gicr-typer" value has nothing with
DeviceManager. Now it is moved to AArch64 specific files.
Signed-off-by: Michael Zhao <michael.zhao@arm.com>
On FDT, VMM can allocate IRQ from 0 for devices.
But on ACPI, the lowest range below 32 has to be avoided.
Signed-off-by: Michael Zhao <michael.zhao@arm.com>
Simplify snapshot & restore code by using generics to specify helper
functions that take / make a Serialize / Deserialize struct
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
Fixes the current codebase so that every cargo clippy can be run with
the beta toolchain without any error.
Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
error: name `GPIOInterruptDisabled` contains a capitalized acronym
Error: --> devices/src/legacy/gpio_pl061.rs:46:5
|
46 | GPIOInterruptDisabled,
| ^^^^^^^^^^^^^^^^^^^^^ help: consider making the acronym lowercase, except the initial letter: `GpioInterruptDisabled`
|
= note: `-D clippy::upper-case-acronyms` implied by `-D warnings`
= help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#upper_case_acronyms
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
Virtio-mmio is removed, now virtio-pci is the only option for virtio
transport layer. We use MSI for PCI device interrupt. While GICv2, the
legacy interrupt controller, doesn't support MSI. So GICv2 is not very
practical for Cloud-hypervisor, we can remove it.
Signed-off-by: Michael Zhao <michael.zhao@arm.com>
The states of GIC should be part of the VM states. This commit
enables the AArch64 VM states save/restore by adding save/restore
of GIC states.
Signed-off-by: Henry Wang <Henry.Wang@arm.com>
Currently for AArch64, the GICv3-ITS is tried to be created first
when PCI is not needed, which is unnecessary. This commit fixes
the problem.
Signed-off-by: Henry Wang <Henry.Wang@arm.com>
The value of GIC register `GICR_TYPER` is needed in restoring
the GIC states. This commit adds a field in the GIC device struct
and a method to construct its value.
Signed-off-by: Henry Wang <Henry.Wang@arm.com>
In AArch64 systems, the state of GIC device can only be
retrieved from `KVM_GET_DEVICE_ATTR` ioctl. Therefore to implement
saving/restoring the GIC states, we need to make sure that the
GIC object (either the file descriptor or the device itself) can
be extracted after the VM is started.
This commit refactors the code of GIC creation by adding a new
field `gic_device_entity` in device manager and methods to set/get
this field. The GIC object can be therefore saved in the device
manager after calling `arch::configure_system`.
Signed-off-by: Henry Wang <Henry.Wang@arm.com>
This commit adds a function which allows to save RDIST pending
tables to the guest RAM, as well as unit test case for it.
Signed-off-by: Henry Wang <Henry.Wang@arm.com>
This commit implements the `get_device_attr` method for the
`KVM_GET_DEVICE_ATTR` ioctl. This ioctl will be used in retrieving
the GIC status.
Signed-off-by: Henry Wang <Henry.Wang@arm.com>
This commit moves the GIC-related code to a separate module.
Therefore the implementation of GIC registers can be introduced
to the new module.
Signed-off-by: Henry Wang <Henry.Wang@arm.com>
