vmm: Remove deprecated VmConfig::{kernel, initramfs, cmdline} members

These have been replaced by members of PayloadConfig and should be
removed in v28.0 (mentioned in v26.0 release notes.)

Fixes: #4737

Signed-off-by: Rob Bradford <robert.bradford@intel.com>

src/main.rs

@@ -615,8 +615,8 @@ mod unit_tests {
     use crate::{create_app, prepare_default_values};
     use std::path::PathBuf;
     use vmm::config::{
-        CmdlineConfig, ConsoleConfig, ConsoleOutputMode, CpuFeatures, CpusConfig, MemoryConfig,
-        PayloadConfig, RngConfig, VmConfig, VmParams,
+        ConsoleConfig, ConsoleOutputMode, CpuFeatures, CpusConfig, MemoryConfig, PayloadConfig,
+        RngConfig, VmConfig, VmParams,
     };
 
     fn get_vm_config_from_vec(args: &[&str]) -> VmConfig {
@@ -677,11 +677,6 @@ mod unit_tests {
                 prefault: false,
                 zones: None,
             },
-            kernel: None,
-            cmdline: CmdlineConfig {
-                args: String::default(),
-            },
-            initramfs: None,
             payload: Some(PayloadConfig {
                 kernel: Some(PathBuf::from("/path/to/kernel")),
                 ..Default::default()

vmm/src/config.rs

@@ -804,16 +804,6 @@ impl MemoryConfig {
     }
 }
 
-impl CmdlineConfig {
-    pub fn parse(cmdline: Option<&str>) -> Result<Self> {
-        let args = cmdline
-            .map(std::string::ToString::to_string)
-            .unwrap_or_else(String::new);
-
-        Ok(CmdlineConfig { args })
-    }
-}
-
 impl DiskConfig {
     pub const SYNTAX: &'static str = "Disk parameters \
          \"path=<disk_image_path>,readonly=on|off,direct=on|off,iommu=on|off,\
@@ -1788,20 +1778,6 @@ impl VmConfig {
     pub fn validate(&mut self) -> ValidationResult<BTreeSet<String>> {
         let mut id_list = BTreeSet::new();
 
-        if self.kernel.is_some() {
-            warn!("The \"VmConfig\" members \"kernel\", \"cmdline\" and \"initramfs\" are deprecated. Use \"payload\" member instead.");
-            self.payload = Some(PayloadConfig {
-                kernel: self.kernel.take().map(|k| k.path),
-                cmdline: if self.cmdline.args.is_empty() {
-                    None
-                } else {
-                    Some(self.cmdline.args.drain(..).collect())
-                },
-                initramfs: self.initramfs.take().map(|i| i.path),
-                ..Default::default()
-            })
-        }
-
         self.payload
             .as_ref()
             .ok_or(ValidationError::KernelMissing)?;
@@ -2153,9 +2129,6 @@ impl VmConfig {
         let mut config = VmConfig {
             cpus: CpusConfig::parse(vm_params.cpus)?,
             memory: MemoryConfig::parse(vm_params.memory, vm_params.memory_zones)?,
-            kernel: None,
-            initramfs: None,
-            cmdline: CmdlineConfig::default(),
             payload,
             disks,
             net,
@@ -2748,11 +2721,6 @@ mod tests {
                 prefault: false,
                 zones: None,
             },
-            kernel: None,
-            cmdline: CmdlineConfig {
-                args: String::default(),
-            },
-            initramfs: None,
             payload: Some(PayloadConfig {
                 kernel: Some(PathBuf::from("/path/to/kernel")),
                 ..Default::default()

vmm/src/lib.rs

@@ -1978,8 +1978,8 @@ const DEVICE_MANAGER_SNAPSHOT_ID: &str = "device-manager";
 mod unit_tests {
     use super::*;
     use config::{
-        CmdlineConfig, ConsoleConfig, ConsoleOutputMode, CpusConfig, HotplugMethod, MemoryConfig,
-        PayloadConfig, RngConfig, VmConfig,
+        ConsoleConfig, ConsoleOutputMode, CpusConfig, HotplugMethod, MemoryConfig, PayloadConfig,
+        RngConfig, VmConfig,
     };
 
     fn create_dummy_vmm() -> Vmm {
@@ -2020,11 +2020,6 @@ mod unit_tests {
                 prefault: false,
                 zones: None,
             },
-            kernel: None,
-            cmdline: CmdlineConfig {
-                args: String::default(),
-            },
-            initramfs: None,
             payload: Some(PayloadConfig {
                 kernel: Some(PathBuf::from("/path/to/kernel")),
                 ..Default::default()

vmm/src/vm_config.rs

@@ -193,21 +193,6 @@ impl Default for VhostMode {
     }
 }
 
-#[derive(Clone, Debug, PartialEq, Eq, Deserialize, Serialize)]
-pub struct KernelConfig {
-    pub path: PathBuf,
-}
-
-#[derive(Clone, Debug, PartialEq, Eq, Deserialize, Serialize)]
-pub struct InitramfsConfig {
-    pub path: PathBuf,
-}
-
-#[derive(Clone, Debug, Default, PartialEq, Eq, Deserialize, Serialize)]
-pub struct CmdlineConfig {
-    pub args: String,
-}
-
 #[derive(Clone, Debug, PartialEq, Eq, Deserialize, Serialize)]
 pub struct DiskConfig {
     pub path: Option<PathBuf>,
@@ -553,12 +538,6 @@ pub struct VmConfig {
     pub cpus: CpusConfig,
     #[serde(default)]
     pub memory: MemoryConfig,
-    pub kernel: Option<KernelConfig>,
-    #[serde(default)]
-    pub initramfs: Option<InitramfsConfig>,
-    #[serde(default)]
-    pub cmdline: CmdlineConfig,
-    #[serde(default)]
     pub payload: Option<PayloadConfig>,
     pub disks: Option<Vec<DiskConfig>>,
     pub net: Option<Vec<NetConfig>>,