tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1KVM Lock Overview
2=================
3
41. Acquisition Orders
5---------------------
6
7(to be written)
8
92. Reference
10------------
11
12Name: kvm_lock
13Type: raw_spinlock
14Arch: any
15Protects: - vm_list
16 - hardware virtualization enable/disable
17Comment: 'raw' because hardware enabling/disabling must be atomic /wrt
18 migration.
19
20Name: kvm_arch::tsc_write_lock
21Type: raw_spinlock
22Arch: x86
23Protects: - kvm_arch::{last_tsc_write,last_tsc_nsec,last_tsc_offset}
24 - tsc offset in vmcb
25Comment: 'raw' because updating the tsc offsets must not be preempted.