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vmm: unify payload load chain on AArch64 with x86_64

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AArch64 can share the same way of loading payload with x86_64. It makes
the payload loading more consistent between different arches.

Signed-off-by: Jianyong Wu <jianyong.wu@arm.com>
This commit is contained in:
Jianyong Wu 2022-08-30 20:33:15 +08:00 committed by Rob Bradford
parent b65639fad3
commit 3a19573c69
1 changed files with 31 additions and 47 deletions
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78
vmm/src/vm.rs
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@ -293,11 +293,9 @@ pub enum Error {
#[error("Error debugging VM: {0:?}")]
Debug(DebuggableError),
#[cfg(target_arch = "x86_64")]
#[error("Error spawning kernel loading thread")]
KernelLoadThreadSpawn(std::io::Error),
#[cfg(target_arch = "x86_64")]
#[error("Error joining kernel loading thread")]
KernelLoadThreadJoin(std::boxed::Box<dyn std::any::Any + std::marker::Send>),
@ -478,7 +476,6 @@ pub struct Vm {
exit_evt: EventFd,
hypervisor: Arc<dyn hypervisor::Hypervisor>,
stop_on_boot: bool,
#[cfg(target_arch = "x86_64")]
load_payload_handle: Option<thread::JoinHandle<Result<EntryPoint>>>,
}
@ -505,7 +502,6 @@ impl Vm {
.validate()
.map_err(Error::ConfigValidation)?;
#[cfg(target_arch = "x86_64")]
let load_payload_handle = if !restoring {
Self::load_payload_async(&memory_manager, &config)?
} else {
@ -627,7 +623,6 @@ impl Vm {
exit_evt,
hypervisor,
stop_on_boot,
#[cfg(target_arch = "x86_64")]
load_payload_handle,
})
}
@ -952,8 +947,8 @@ impl Vm {
}
#[cfg(target_arch = "aarch64")]
fn load_firmware(&self, mut firmware: &File) -> Result<()> {
let uefi_flash = self.memory_manager.lock().as_ref().unwrap().uefi_flash();
fn load_firmware(mut firmware: &File, memory_manager: Arc<Mutex<MemoryManager>>) -> Result<()> {
let uefi_flash = memory_manager.lock().as_ref().unwrap().uefi_flash();
let mem = uefi_flash.memory();
arch::aarch64::uefi::load_uefi(mem.deref(), arch::layout::UEFI_START, &mut firmware)
.map_err(Error::UefiLoad)?;
@ -961,20 +956,15 @@ impl Vm {
}
#[cfg(target_arch = "aarch64")]
fn load_kernel(&mut self) -> Result<EntryPoint> {
let guest_memory = self.memory_manager.lock().as_ref().unwrap().guest_memory();
fn load_kernel(
firmware: Option<File>,
kernel: Option<File>,
memory_manager: Arc<Mutex<MemoryManager>>,
) -> Result<EntryPoint> {
let guest_memory = memory_manager.lock().as_ref().unwrap().guest_memory();
let mem = guest_memory.memory();
let payload = self
.config
.lock()
.unwrap()
.payload
.as_ref()
.unwrap()
.clone();
let entry_addr = match (payload.firmware, payload.kernel) {
(None, Some(kernel)) => {
let mut kernel = File::open(kernel).map_err(Error::KernelFile)?;
let entry_addr = match (firmware, kernel) {
(None, Some(mut kernel)) => {
match linux_loader::loader::pe::PE::load(
mem.deref(),
Some(arch::layout::KERNEL_START),
@ -986,7 +976,7 @@ impl Vm {
// If failed, retry to load it as UEFI binary.
// As the UEFI binary is formatless, it must be the last option to try.
Err(linux_loader::loader::Error::Pe(InvalidImageMagicNumber)) => {
self.load_firmware(&kernel)?;
Self::load_firmware(&kernel, memory_manager)?;
arch::layout::UEFI_START
}
Err(e) => {
@ -995,16 +985,13 @@ impl Vm {
}
}
(Some(firmware), None) => {
let firmware = File::open(firmware).map_err(Error::FirmwareFile)?;
self.load_firmware(&firmware)?;
Self::load_firmware(&firmware, memory_manager)?;
arch::layout::UEFI_START
}
_ => return Err(Error::InvalidPayload),
};
Ok(EntryPoint {
entry_addr: entry_addr,
})
Ok(EntryPoint { entry_addr })
}
#[cfg(target_arch = "x86_64")]
@ -1125,7 +1112,24 @@ impl Vm {
}
}
#[cfg(target_arch = "x86_64")]
#[cfg(target_arch = "aarch64")]
fn load_payload(
payload: &PayloadConfig,
memory_manager: Arc<Mutex<MemoryManager>>,
) -> Result<EntryPoint> {
match (&payload.firmware, &payload.kernel) {
(Some(firmware), None) => {
let firmware = File::open(firmware).map_err(Error::FirmwareFile)?;
Self::load_kernel(Some(firmware), None, memory_manager)
}
(None, Some(kernel)) => {
let kernel = File::open(kernel).map_err(Error::KernelFile)?;
Self::load_kernel(None, Some(kernel), memory_manager)
}
_ => Err(Error::InvalidPayload),
}
}
fn load_payload_async(
memory_manager: &Arc<Mutex<MemoryManager>>,
config: &Arc<Mutex<VmConfig>>,
@ -2128,7 +2132,6 @@ impl Vm {
Some(rsdp_addr)
}
#[cfg(target_arch = "x86_64")]
fn entry_point(&mut self) -> Result<Option<EntryPoint>> {
self.load_payload_handle
.take()
@ -2136,25 +2139,6 @@ impl Vm {
.transpose()
}
#[cfg(target_arch = "aarch64")]
fn entry_point(&mut self) -> Result<Option<EntryPoint>> {
let payload = self
.config
.lock()
.unwrap()
.payload
.as_ref()
.unwrap()
.clone();
Ok(
if payload.kernel.as_ref().is_some() || payload.firmware.as_ref().is_some() {
Some(self.load_kernel()?)
} else {
None
},
)
}
pub fn boot(&mut self) -> Result<()> {
info!("Booting VM");
event!("vm", "booting");