diff options
| author | Paolo Bonzini <pbonzini@redhat.com> | 2024-09-02 10:55:27 -0400 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2024-09-02 10:55:27 -0400 |
| commit | 1ae99594fb7a7e78de7b1adf0feb4f681937a28e (patch) | |
| tree | eb243e1ba67336a21605b23265eb6259a2a9201b /kernel/cpu.c | |
| parent | 66155de93bcf4f2967e602a4b3bf7ebe58f34b11 (diff) | |
| parent | 5fa9f0480c7985e44e6ec32def0a395b768599cc (diff) | |
Merge tag 'kvm-x86-fixes-6.11-rcN' of https://github.com/kvm-x86/linux into kvm-master
KVM x86 fixes for 6.11
- Fixup missed comments from the REMOVED_SPTE=>FROZEN_SPTE rename.
- Ensure a root is successfully loaded when pre-faulting SPTEs.
- Grab kvm->srcu when handling KVM_SET_VCPU_EVENTS to guard against accessing
memslots if toggling SMM happens to force a VM-Exit.
- Emulate MSR_{FS,GS}_BASE on SVM even though interception is always disabled,
so that KVM does the right thing if KVM's emulator encounters {RD,WR}MSR.
- Explicitly clear BUS_LOCK_DETECT from KVM's caps on AMD, as KVM doesn't yet
virtualize BUS_LOCK_DETECT on AMD.
- Cleanup the help message for CONFIG_KVM_AMD_SEV, and call out that KVM now
supports SEV-SNP too.
Diffstat (limited to 'kernel/cpu.c')
| -rw-r--r-- | kernel/cpu.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/kernel/cpu.c b/kernel/cpu.c index 1209ddaec026..b1fd2a3db91a 100644 --- a/kernel/cpu.c +++ b/kernel/cpu.c @@ -2689,6 +2689,16 @@ int cpuhp_smt_disable(enum cpuhp_smt_control ctrlval) return ret; } +/** + * Check if the core a CPU belongs to is online + */ +#if !defined(topology_is_core_online) +static inline bool topology_is_core_online(unsigned int cpu) +{ + return true; +} +#endif + int cpuhp_smt_enable(void) { int cpu, ret = 0; @@ -2699,7 +2709,7 @@ int cpuhp_smt_enable(void) /* Skip online CPUs and CPUs on offline nodes */ if (cpu_online(cpu) || !node_online(cpu_to_node(cpu))) continue; - if (!cpu_smt_thread_allowed(cpu)) + if (!cpu_smt_thread_allowed(cpu) || !topology_is_core_online(cpu)) continue; ret = _cpu_up(cpu, 0, CPUHP_ONLINE); if (ret) |