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https://github.com/cloud-hypervisor/cloud-hypervisor.git
synced 2024-07-02 16:02:37 +00:00
cli: Accept K,M,G suffixes for size parameters
For every parameter dealing with a size as option, such as memory or virtio-pmem, the CLI can now parse sizes with the suffixes K, M or G. Fixes #70 Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
This commit is contained in:
Sebastien Boeuf
Rob Bradford
parent
2bb0b22cc1
commit
a2947f9a9f
22
src/main.rs
22
src/main.rs
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@ -135,7 +135,7 @@ fn main() {
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"Cloud Hypervisor Guest\n\tvCPUs: {}\n\tMemory: {} MB\
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\n\tKernel: {:?}\n\tKernel cmdline: {}\n\tDisk(s): {:?}",
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u8::from(&vm_config.cpus),
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vm_config.memory.size,
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vm_config.memory.size >> 20,
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vm_config.kernel.path,
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vm_config.cmdline.args.as_str(),
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vm_config.disks,
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@ -294,7 +294,7 @@ mod tests {
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let (disks, fw_path) = prepare_files();
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let mut child = Command::new("target/debug/cloud-hypervisor")
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.args(&["--cpus", "1"])
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.args(&["--memory", "size=512"])
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.args(&["--memory", "size=512M"])
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.args(&["--kernel", fw_path.as_str()])
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.args(&["--disk", disks[0], disks[1]])
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.args(&["--net", "tap=,mac=,ip=192.168.2.1,mask=255.255.255.0"])
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@ -322,7 +322,7 @@ mod tests {
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let (disks, fw_path) = prepare_files();
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let mut child = Command::new("target/debug/cloud-hypervisor")
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.args(&["--cpus", "2"])
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.args(&["--memory", "size=512"])
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.args(&["--memory", "size=512M"])
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.args(&["--kernel", fw_path.as_str()])
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.args(&["--disk", disks[0], disks[1]])
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.args(&["--net", "tap=,mac=,ip=192.168.2.1,mask=255.255.255.0"])
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@ -347,7 +347,7 @@ mod tests {
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let (disks, fw_path) = prepare_files();
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let mut child = Command::new("target/debug/cloud-hypervisor")
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.args(&["--cpus", "1"])
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.args(&["--memory", "size=5120"])
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.args(&["--memory", "size=5120M"])
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.args(&["--kernel", fw_path.as_str()])
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.args(&["--disk", disks[0], disks[1]])
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.args(&["--net", "tap=,mac=,ip=192.168.2.1,mask=255.255.255.0"])
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@ -372,7 +372,7 @@ mod tests {
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let (disks, fw_path) = prepare_files();
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let mut child = Command::new("target/debug/cloud-hypervisor")
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.args(&["--cpus", "1"])
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.args(&["--memory", "size=512"])
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.args(&["--memory", "size=512M"])
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.args(&["--kernel", fw_path.as_str()])
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.args(&["--disk", disks[0], disks[1]])
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.args(&["--net", "tap=,mac=,ip=192.168.2.1,mask=255.255.255.0"])
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@ -410,7 +410,7 @@ mod tests {
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let mut child = Command::new("target/debug/cloud-hypervisor")
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.args(&["--cpus", "1"])
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.args(&["--memory", "size=512"])
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.args(&["--memory", "size=512M"])
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.args(&["--kernel", kernel_path.to_str().unwrap()])
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.args(&["--disk", disks[0], disks[1]])
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.args(&["--net", "tap=,mac=,ip=192.168.2.1,mask=255.255.255.0"])
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@ -452,7 +452,7 @@ mod tests {
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let mut child = Command::new("target/debug/cloud-hypervisor")
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.args(&["--cpus", "1"])
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.args(&["--memory", "size=512"])
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.args(&["--memory", "size=512M"])
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.args(&["--kernel", kernel_path.to_str().unwrap()])
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.args(&["--disk", disks[0], disks[1]])
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.args(&["--net", "tap=,mac=,ip=192.168.2.1,mask=255.255.255.0"])
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@ -488,7 +488,7 @@ mod tests {
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let (disks, fw_path) = prepare_files();
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let mut child = Command::new("target/debug/cloud-hypervisor")
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.args(&["--cpus", "1"])
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.args(&["--memory", "size=512"])
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.args(&["--memory", "size=512M"])
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.args(&["--kernel", fw_path.as_str()])
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.args(&["--disk", disks[0], disks[1]])
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.args(&["--net", "tap=,mac=,ip=192.168.2.1,mask=255.255.255.0"])
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@ -535,7 +535,7 @@ mod tests {
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let mut child = Command::new("target/debug/cloud-hypervisor")
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.args(&["--cpus", "1"])
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.args(&["--memory", "size=512,file=/dev/shm"])
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.args(&["--memory", "size=512M,file=/dev/shm"])
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.args(&["--kernel", kernel_path.to_str().unwrap()])
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.args(&["--disk", disks[0], disks[1]])
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.args(&["--net", "tap=,mac=,ip=192.168.2.1,mask=255.255.255.0"])
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@ -605,7 +605,7 @@ mod tests {
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let mut child = Command::new("target/debug/cloud-hypervisor")
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.args(&["--cpus", "1"])
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.args(&["--memory", "size=512"])
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.args(&["--memory", "size=512M"])
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.args(&["--kernel", kernel_path.to_str().unwrap()])
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.args(&["--disk", disks[0], disks[1]])
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.args(&["--net", "tap=,mac=,ip=192.168.2.1,mask=255.255.255.0"])
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@ -673,7 +673,7 @@ mod tests {
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let mut child = Command::new("target/debug/cloud-hypervisor")
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.args(&["--cpus", "1"])
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.args(&["--memory", "size=512"])
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.args(&["--memory", "size=512M"])
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.args(&["--kernel", kernel_path.to_str().unwrap()])
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.args(&["--disk", disks[1]])
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.args(&["--net", "tap=,mac=,ip=192.168.2.1,mask=255.255.255.0"])
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@ -22,8 +22,6 @@ const CMDLINE_OFFSET: GuestAddress = GuestAddress(0x20000);
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pub enum Error<'a> {
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/// Failed parsing cpus parameters.
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ParseCpusParams(std::num::ParseIntError),
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/// Failed parsing memory size parameter.
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ParseMemorySizeParam(std::num::ParseIntError),
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/// Failed parsing memory file parameter.
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ParseMemoryFileParam,
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/// Failed parsing kernel parameters.
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@ -50,8 +48,8 @@ pub enum Error<'a> {
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ParseFsQueueSizeParam(std::num::ParseIntError),
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/// Failed parsing persitent memory file parameter.
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ParsePmemFileParam,
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/// Failed parsing persitent memory size parameter.
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ParsePmemSizeParam(std::num::ParseIntError),
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/// Failed parsing size parameter.
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ParseSizeParam(std::num::ParseIntError),
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}
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pub type Result<'a, T> = result::Result<T, Error<'a>>;
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@ -67,6 +65,24 @@ pub struct VmParams<'a> {
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pub pmem: Option<Vec<&'a str>>,
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}
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fn parse_size(size: &str) -> Result<u64> {
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let s = size.trim();
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let shift = if s.ends_with('K') {
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10
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} else if s.ends_with('M') {
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20
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} else if s.ends_with('G') {
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30
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} else {
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0
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};
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let s = s.trim_end_matches(|c| c == 'K' || c == 'M' || c == 'G');
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let res = s.parse::<u64>().map_err(Error::ParseSizeParam)?;
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Ok(res << shift)
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}
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pub struct CpusConfig(pub u8);
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impl CpusConfig {
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@ -117,9 +133,7 @@ impl<'a> MemoryConfig<'a> {
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};
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Ok(MemoryConfig {
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size: size_str
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.parse::<u64>()
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.map_err(Error::ParseMemorySizeParam)?,
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size: parse_size(size_str)?,
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file,
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})
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}
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@ -323,7 +337,7 @@ impl<'a> PmemConfig<'a> {
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Ok(PmemConfig {
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file: Path::new(file_str),
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size: size_str.parse::<u64>().map_err(Error::ParsePmemSizeParam)?,
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size: parse_size(size_str)?,
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})
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}
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}
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@ -924,7 +924,7 @@ impl<'a> Vm<'a> {
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let fd = Arc::new(fd);
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// Init guest memory
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let arch_mem_regions = arch::arch_memory_regions(config.memory.size << 20);
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let arch_mem_regions = arch::arch_memory_regions(config.memory.size);
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let guest_memory = match config.memory.file {
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Some(file) => {
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