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authorPaolo Bonzini <pbonzini@redhat.com>2023-01-13 11:27:55 -0500
committerPaolo Bonzini <pbonzini@redhat.com>2023-01-24 06:05:23 -0500
commitdc7c31e922787466957cadf2c0ad21c0f9a4091f (patch)
treeb6c6feeb812282a21d00ae59eaa69033b6c1078a /virt
parentedd731d73221277cb384efeb66da76dae0a68dfa (diff)
parent310bc39546a435c83cc27a0eba878afac0d74714 (diff)
downloadlwn-dc7c31e922787466957cadf2c0ad21c0f9a4091f.tar.gz
lwn-dc7c31e922787466957cadf2c0ad21c0f9a4091f.zip
Merge branch 'kvm-v6.2-rc4-fixes' into HEAD
ARM: * Fix the PMCR_EL0 reset value after the PMU rework * Correctly handle S2 fault triggered by a S1 page table walk by not always classifying it as a write, as this breaks on R/O memslots * Document why we cannot exit with KVM_EXIT_MMIO when taking a write fault from a S1 PTW on a R/O memslot * Put the Apple M2 on the naughty list for not being able to correctly implement the vgic SEIS feature, just like the M1 before it * Reviewer updates: Alex is stepping down, replaced by Zenghui x86: * Fix various rare locking issues in Xen emulation and teach lockdep to detect them * Documentation improvements * Do not return host topology information from KVM_GET_SUPPORTED_CPUID
Diffstat (limited to 'virt')
-rw-r--r--virt/kvm/kvm_main.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 0f17b8786792..d255964ec331 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -3946,6 +3946,13 @@ static int kvm_vm_ioctl_create_vcpu(struct kvm *kvm, u32 id)
}
mutex_lock(&kvm->lock);
+
+#ifdef CONFIG_LOCKDEP
+ /* Ensure that lockdep knows vcpu->mutex is taken *inside* kvm->lock */
+ mutex_lock(&vcpu->mutex);
+ mutex_unlock(&vcpu->mutex);
+#endif
+
if (kvm_get_vcpu_by_id(kvm, id)) {
r = -EEXIST;
goto unlock_vcpu_destroy;