vmm: support starting stratovirt lightweight vm sandbox #93
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| const ROOTFS_KERNEL_PARAMS: &str = " root=/dev/vda ro rootfstype=ext4"; | ||
| #[cfg(target_arch = "aarch64")] | ||
| const ROOTFS_KERNEL_PARAMS: &str = " root=/dev/vda1 ro rootfstype=ext4"; |
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Why is it different before? and is it unified now?
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Yes it is unified now, i used an unofficial image in arm before, which would divide a vda1 patition, now i use the image provided by stratovirt to start vm, it will not devide vda1.
| @@ -85,17 +85,25 @@ impl VMFactory for StratoVirtVMFactory { | |||
| // create pcie.0 root bus object | |||
| vm.pcie_root_bus = create_pcie_root_bus(); | |||
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| let mut transport = Transport::Pci; | |||
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if the transport is strongly related to the machine type, maybe we can add a transport() in Machine to determine the transport by the machine type.
vmm/sandbox/src/stratovirt/mod.rs
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| // set the pcie slot status to Occupied | ||
| self.pcie_root_bus.bus.slots[slot_index].status = SlotStatus::Occupied(device.id()); | ||
| device.set_device_addr(slot_index); | ||
| if !self.config.machine.r#type.contains(MACHINE_TYPE_MICROVM) { |
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this makes the machine type of microvm a special case, can we just make the pcie_root_bus of StratoVirtVM an Option so that we just need to check if it is a None here.
Vanient
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| @@ -450,11 +458,14 @@ impl StratoVirtVM { | |||
| &mut self, | |||
| mut device: T, | |||
| ) -> Result<()> { | |||
| // get the empty slot index | |||
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Now microVM support a new virtual bus typemmio, so attatch_to_pcie_rootbus func name is not accurate, maybe attach_to_bus is more clear.
| if self.pcie_root_bus.is_some() { | ||
| // get the empty slot index | ||
| let slot_index = self.get_empty_pcie_slot_index()?; | ||
| // set the pcie slot status to Occupied | ||
| self.pcie_root_bus.as_mut().unwrap().bus.slots[slot_index].status = | ||
| SlotStatus::Occupied(device.id()); | ||
| device.set_device_addr(slot_index); | ||
| } |
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| if self.pcie_root_bus.is_some() { | |
| // get the empty slot index | |
| let slot_index = self.get_empty_pcie_slot_index()?; | |
| // set the pcie slot status to Occupied | |
| self.pcie_root_bus.as_mut().unwrap().bus.slots[slot_index].status = | |
| SlotStatus::Occupied(device.id()); | |
| device.set_device_addr(slot_index); | |
| } | |
| if let Some(&mut pcie_root_bus) = self.pcie_root_bus { | |
| ... | |
| pcie_root_bus.bus.slots[slot_index].status = | |
| SlotStatus::Occupied(device.id()); | |
| ... | |
| } |
I am not sure does it work? :)
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I tried but it did not work well...
move occurs because pcie_root_bus does not implement the Copy trait, but self.get_empty_pcie_slot_index needs to use it next
| @@ -147,8 +153,10 @@ impl VMFactory for StratoVirtVMFactory { | |||
| share_fs_path.as_str(), | |||
| ); | |||
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| // set pcie-root-ports for hotplugging | |||
| vm.create_pcie_root_ports(PCIE_ROOTPORT_CAPACITY)?; | |||
| if vm.config.machine.r#type.split(',').next().unwrap() != MACHINE_TYPE_MICROVM { | |||
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Be careful with unwrap(). How about collect() substrings after split(), and handle the string array.
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vmm-sandboxer support starting stratovirt lightweight vm sandbox, which uses lightweight microvm mainboard and mmio bus. Signed-off-by: Vanient <xiadanni1@huawei.com>
vmm-sandboxer support starting stratovirt lightweight vm sandbox, which uses lightweight microvm mainboard and mmio bus.