vmm: Move NUMA node data structures to arch

This is to make sure the NUMA node data structures can be accessed
both from the `vmm` crate and `arch` crate.

Signed-off-by: Henry Wang <Henry.Wang@arm.com>

arch/src/lib.rs

@@ -11,10 +11,15 @@
 #[macro_use]
 extern crate log;
 
+#[cfg(target_arch = "x86_64")]
+use crate::x86_64::SgxEpcSection;
+use std::collections::BTreeMap;
 use std::fmt;
 use std::result;
+use std::sync::Arc;
 
 type GuestMemoryMmap = vm_memory::GuestMemoryMmap<vm_memory::bitmap::AtomicBitmap>;
+type GuestRegionMmap = vm_memory::GuestRegionMmap<vm_memory::bitmap::AtomicBitmap>;
 
 /// Type for returning error code.
 #[derive(Debug)]
@@ -96,6 +101,19 @@ fn pagesize() -> usize {
     unsafe { libc::sysconf(libc::_SC_PAGESIZE) as usize }
 }
 
+#[derive(Clone, Default)]
+pub struct NumaNode {
+    pub memory_regions: Vec<Arc<GuestRegionMmap>>,
+    pub hotplug_regions: Vec<Arc<GuestRegionMmap>>,
+    pub cpus: Vec<u8>,
+    pub distances: BTreeMap<u32, u8>,
+    pub memory_zones: Vec<String>,
+    #[cfg(target_arch = "x86_64")]
+    pub sgx_epc_sections: Vec<SgxEpcSection>,
+}
+
+pub type NumaNodes = BTreeMap<u32, NumaNode>;
+
 /// Type for passing information about the initramfs in the guest memory.
 pub struct InitramfsConfig {
     /// Load address of initramfs in guest memory

vmm/src/acpi.rs

@@ -5,7 +5,6 @@
 use crate::cpu::CpuManager;
 use crate::device_manager::DeviceManager;
 use crate::memory_manager::MemoryManager;
-use crate::vm::NumaNodes;
 use crate::{GuestMemoryMmap, GuestRegionMmap};
 use acpi_tables::sdt::GenericAddress;
 use acpi_tables::{aml::Aml, rsdp::Rsdp, sdt::Sdt};
@@ -13,6 +12,8 @@ use acpi_tables::{aml::Aml, rsdp::Rsdp, sdt::Sdt};
 use arch::aarch64::DeviceInfoForFdt;
 #[cfg(target_arch = "aarch64")]
 use arch::DeviceType;
+#[cfg(any(target_arch = "aarch64", feature = "acpi"))]
+use arch::NumaNodes;
 
 use bitflags::bitflags;
 use std::sync::{Arc, Mutex};
@@ -250,7 +251,7 @@ fn create_srat_table(numa_nodes: &NumaNodes) -> Sdt {
     for (node_id, node) in numa_nodes.iter() {
         let proximity_domain = *node_id as u32;
 
-        for region in node.memory_regions() {
+        for region in &node.memory_regions {
             srat.append(MemoryAffinity::from_region(
                 region,
                 proximity_domain,
@@ -258,7 +259,7 @@ fn create_srat_table(numa_nodes: &NumaNodes) -> Sdt {
             ))
         }
 
-        for region in node.hotplug_regions() {
+        for region in &node.hotplug_regions {
             srat.append(MemoryAffinity::from_region(
                 region,
                 proximity_domain,
@@ -267,7 +268,7 @@ fn create_srat_table(numa_nodes: &NumaNodes) -> Sdt {
         }
 
         #[cfg(target_arch = "x86_64")]
-        for section in node.sgx_epc_sections() {
+        for section in &node.sgx_epc_sections {
             srat.append(MemoryAffinity::from_range(
                 section.start().raw_value(),
                 section.size(),
@@ -276,7 +277,7 @@ fn create_srat_table(numa_nodes: &NumaNodes) -> Sdt {
             ))
         }
 
-        for cpu in node.cpus() {
+        for cpu in &node.cpus {
             let x2apic_id = *cpu as u32;
 
             // Flags
@@ -315,7 +316,7 @@ fn create_slit_table(numa_nodes: &NumaNodes) -> Sdt {
 
     let existing_nodes: Vec<u32> = numa_nodes.keys().cloned().collect();
     for (node_id, node) in numa_nodes.iter() {
-        let distances = node.distances();
+        let distances = &node.distances;
         for i in existing_nodes.iter() {
             let dist: u8 = if *node_id == *i {
                 10

vmm/src/cpu.rs

@@ -17,14 +17,14 @@ use crate::memory_manager::MemoryManager;
 use crate::seccomp_filters::{get_seccomp_filter, Thread};
 #[cfg(target_arch = "x86_64")]
 use crate::vm::physical_bits;
-#[cfg(any(target_arch = "aarch64", feature = "acpi"))]
-use crate::vm::NumaNodes;
 use crate::GuestMemoryMmap;
 use crate::CPU_MANAGER_SNAPSHOT_ID;
 #[cfg(feature = "acpi")]
 use acpi_tables::{aml, aml::Aml, sdt::Sdt};
 use anyhow::anyhow;
 use arch::EntryPoint;
+#[cfg(any(target_arch = "aarch64", feature = "acpi"))]
+use arch::NumaNodes;
 use devices::interrupt_controller::InterruptController;
 #[cfg(target_arch = "aarch64")]
 use hypervisor::kvm::kvm_bindings;
@@ -579,7 +579,7 @@ impl CpuManager {
         let proximity_domain_per_cpu: BTreeMap<u8, u32> = {
             let mut cpu_list = Vec::new();
             for (proximity_domain, numa_node) in numa_nodes.iter() {
-                for cpu in numa_node.cpus().iter() {
+                for cpu in numa_node.cpus.iter() {
                     cpu_list.push((*cpu, *proximity_domain))
                 }
             }

vmm/src/device_manager.rs

@@ -22,8 +22,6 @@ use crate::interrupt::LegacyUserspaceInterruptManager;
 #[cfg(feature = "acpi")]
 use crate::memory_manager::MEMORY_MANAGER_ACPI_SIZE;
 use crate::memory_manager::{Error as MemoryManagerError, MemoryManager};
-#[cfg(any(target_arch = "aarch64", feature = "acpi"))]
-use crate::vm::NumaNodes;
 use crate::GuestRegionMmap;
 use crate::PciDeviceInfo;
 use crate::{device_node, DEVICE_MANAGER_SNAPSHOT_ID};
@@ -34,6 +32,8 @@ use anyhow::anyhow;
 use arch::layout;
 #[cfg(target_arch = "x86_64")]
 use arch::layout::{APIC_START, IOAPIC_SIZE, IOAPIC_START};
+#[cfg(any(target_arch = "aarch64", feature = "acpi"))]
+use arch::NumaNodes;
 #[cfg(target_arch = "aarch64")]
 use arch::{DeviceType, MmioDeviceInfo};
 use block_util::{
@@ -3689,10 +3689,7 @@ impl DeviceManager {
 #[cfg(any(target_arch = "aarch64", feature = "acpi"))]
 fn numa_node_id_from_memory_zone_id(numa_nodes: &NumaNodes, memory_zone_id: &str) -> Option<u32> {
     for (numa_node_id, numa_node) in numa_nodes.iter() {
-        if numa_node
-            .memory_zones()
-            .contains(&memory_zone_id.to_owned())
-        {
+        if numa_node.memory_zones.contains(&memory_zone_id.to_owned()) {
             return Some(*numa_node_id);
         }
     }

vmm/src/vm.rs

@@ -25,7 +25,7 @@ use crate::device_tree::DeviceTree;
 use crate::memory_manager::{Error as MemoryManagerError, MemoryManager};
 use crate::migration::{get_vm_snapshot, url_to_path, VM_SNAPSHOT_FILE};
 use crate::seccomp_filters::{get_seccomp_filter, Thread};
-use crate::{GuestMemoryMmap, GuestRegionMmap};
+use crate::GuestMemoryMmap;
 use crate::{
     PciDeviceInfo, CPU_MANAGER_SNAPSHOT_ID, DEVICE_MANAGER_SNAPSHOT_ID, MEMORY_MANAGER_SNAPSHOT_ID,
 };
@@ -33,9 +33,9 @@ use anyhow::anyhow;
 use arch::get_host_cpu_phys_bits;
 #[cfg(feature = "tdx")]
 use arch::x86_64::tdx::TdvfSection;
-#[cfg(target_arch = "x86_64")]
-use arch::x86_64::SgxEpcSection;
 use arch::EntryPoint;
+#[cfg(any(target_arch = "aarch64", feature = "acpi"))]
+use arch::{NumaNode, NumaNodes};
 use devices::AcpiNotificationFlags;
 use hypervisor::vm::{HypervisorVmError, VmmOps};
 use linux_loader::cmdline::Cmdline;
@@ -266,46 +266,6 @@ pub enum Error {
 }
 pub type Result<T> = result::Result<T, Error>;
 
-#[derive(Clone, Default)]
-pub struct NumaNode {
-    memory_regions: Vec<Arc<GuestRegionMmap>>,
-    hotplug_regions: Vec<Arc<GuestRegionMmap>>,
-    cpus: Vec<u8>,
-    distances: BTreeMap<u32, u8>,
-    memory_zones: Vec<String>,
-    #[cfg(target_arch = "x86_64")]
-    sgx_epc_sections: Vec<SgxEpcSection>,
-}
-
-impl NumaNode {
-    pub fn memory_regions(&self) -> &Vec<Arc<GuestRegionMmap>> {
-        &self.memory_regions
-    }
-
-    pub fn hotplug_regions(&self) -> &Vec<Arc<GuestRegionMmap>> {
-        &self.hotplug_regions
-    }
-
-    pub fn cpus(&self) -> &Vec<u8> {
-        &self.cpus
-    }
-
-    pub fn distances(&self) -> &BTreeMap<u32, u8> {
-        &self.distances
-    }
-
-    pub fn memory_zones(&self) -> &Vec<String> {
-        &self.memory_zones
-    }
-
-    #[cfg(target_arch = "x86_64")]
-    pub fn sgx_epc_sections(&self) -> &Vec<SgxEpcSection> {
-        &self.sgx_epc_sections
-    }
-}
-
-pub type NumaNodes = BTreeMap<u32, NumaNode>;
-
 #[derive(Clone, Copy, Debug, Deserialize, Serialize, PartialEq)]
 pub enum VmState {
     Created,