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devices: Simplify device state to support Versionize

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In order to support using Versionize for state structures it is necessary
to use simpler, primitive, data types in the state definitions used for
snapshot restore.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
This commit is contained in:
Rob Bradford 2021-04-23 10:55:05 +01:00
parent 8614a0ab2f
commit f643ba6111
3 changed files with 9 additions and 14 deletions
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11
devices/src/ioapic.rs
View File

@ -23,10 +23,6 @@ use vm_memory::GuestAddress;
use vm_migration::{Migratable, MigratableError, Pausable, Snapshot, Snapshottable, Transportable};
use vmm_sys_util::eventfd::EventFd;
#[derive(Serialize, Deserialize)]
#[serde(remote = "GuestAddress")]
pub struct GuestAddressDef(pub u64);
type Result<T> = result::Result<T, Error>;
// I/O REDIRECTION TABLE REGISTER
@ -143,8 +139,7 @@ pub struct IoapicState {
reg_sel: u32,
reg_entries: [RedirectionTableEntry; NUM_IOAPIC_PINS],
used_entries: [bool; NUM_IOAPIC_PINS],
#[serde(with = "GuestAddressDef")]
apic_address: GuestAddress,
apic_address: u64,
}
impl BusDevice for Ioapic {
@ -281,7 +276,7 @@ impl Ioapic {
reg_sel: self.reg_sel,
reg_entries: self.reg_entries,
used_entries: self.used_entries,
apic_address: self.apic_address,
apic_address: self.apic_address.0,
}
}
@ -290,7 +285,7 @@ impl Ioapic {
self.reg_sel = state.reg_sel;
self.reg_entries = state.reg_entries;
self.used_entries = state.used_entries;
self.apic_address = state.apic_address;
self.apic_address = GuestAddress(state.apic_address);
for (irq, entry) in self.used_entries.iter().enumerate() {
if *entry {
self.update_entry(irq)?;

6
devices/src/legacy/serial.rs
View File

@ -80,7 +80,7 @@ pub struct SerialState {
modem_status: u8,
scratch: u8,
baud_divisor: u16,
in_buffer: VecDeque<u8>,
in_buffer: Vec<u8>,
}
impl Serial {
@ -223,7 +223,7 @@ impl Serial {
modem_status: self.modem_status,
scratch: self.scratch,
baud_divisor: self.baud_divisor,
in_buffer: self.in_buffer.clone(),
in_buffer: self.in_buffer.clone().into(),
}
}
@ -236,7 +236,7 @@ impl Serial {
self.modem_status = state.modem_status;
self.scratch = state.scratch;
self.baud_divisor = state.baud_divisor;
self.in_buffer = state.in_buffer.clone();
self.in_buffer = state.in_buffer.clone().into();
}
}

6
devices/src/legacy/uart_pl011.rs
View File

@ -95,7 +95,7 @@ pub struct Pl011State {
dmacr: u32,
int_enabled: u32,
int_level: u32,
read_fifo: VecDeque<u8>,
read_fifo: Vec<u8>,
ilpr: u32,
ibrd: u32,
fbrd: u32,
@ -141,7 +141,7 @@ impl Pl011 {
dmacr: self.dmacr,
int_enabled: self.int_enabled,
int_level: self.int_level,
read_fifo: self.read_fifo.clone(),
read_fifo: self.read_fifo.clone().into(),
ilpr: self.ilpr,
ibrd: self.ibrd,
fbrd: self.fbrd,
@ -159,7 +159,7 @@ impl Pl011 {
self.dmacr = state.dmacr;
self.int_enabled = state.int_enabled;
self.int_level = state.int_level;
self.read_fifo = state.read_fifo.clone();
self.read_fifo = state.read_fifo.clone().into();
self.ilpr = state.ilpr;
self.ibrd = state.ibrd;
self.fbrd = state.fbrd;