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vmm: Add default VCPU topology in PPTT on AArch64

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When VCPU topology is not specified, fill the PPTT with default setting.

Signed-off-by: Michael Zhao <michael.zhao@arm.com>
This commit is contained in:
Michael Zhao 2022-02-19 15:01:51 +08:00 committed by Xin Wang
parent 297459087a
commit 0fa31539eb
1 changed files with 5 additions and 3 deletions
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8
vmm/src/cpu.rs
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@ -1286,9 +1286,11 @@ impl CpuManager {
let pptt_start = 0;
let mut cpus = 0;
let mut uid = 0;
let threads_per_core = self.get_vcpu_topology().unwrap_or_default().0 as u8;
let cores_per_package = self.get_vcpu_topology().unwrap_or_default().1 as u8;
let packages = self.get_vcpu_topology().unwrap_or_default().2 as u8;
// If topology is not specified, the default setting is:
// 1 package, multiple cores, 1 thread per core
// This is also the behavior when PPTT is missing.
let (threads_per_core, cores_per_package, packages) =
self.get_vcpu_topology().unwrap_or((1, self.max_vcpus(), 1));
let mut pptt = Sdt::new(*b"PPTT", 36, 2, *b"CLOUDH", *b"CHPPTT ", 1);