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authorSean Christopherson <seanjc@google.com>2025-10-30 13:09:25 -0700
committerSean Christopherson <seanjc@google.com>2025-11-05 11:03:11 -0800
commit50efc2340a598da4bafa40bc01e18f8cf73a4ae3 (patch)
treedbac6ade99efb8fc181326f759ab2fca00afbcdb /include/linux
parent0a0da3f92118950862700497bc7917f0fbf6a6e8 (diff)
KVM: Rename kvm_arch_vcpu_async_ioctl() to kvm_arch_vcpu_unlocked_ioctl()
Rename the "async" ioctl API to "unlocked" so that upcoming usage in x86's TDX code doesn't result in a massive misnomer. To avoid having to retry SEAMCALLs, TDX needs to acquire kvm->lock *and* all vcpu->mutex locks, and acquiring all of those locks after/inside the current vCPU's mutex is a non-starter. However, TDX also needs to acquire the vCPU's mutex and load the vCPU, i.e. the handling is very much not async to the vCPU. No functional change intended. Acked-by: Claudio Imbrenda <imbrenda@linux.ibm.com> Reviewed-by: Yan Zhao <yan.y.zhao@intel.com> Tested-by: Yan Zhao <yan.y.zhao@intel.com> Tested-by: Kai Huang <kai.huang@intel.com> Link: https://patch.msgid.link/20251030200951.3402865-3-seanjc@google.com Signed-off-by: Sean Christopherson <seanjc@google.com>
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/kvm_host.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index 7186b2ae4b57..d93f75b05ae2 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -1557,6 +1557,8 @@ long kvm_arch_dev_ioctl(struct file *filp,
unsigned int ioctl, unsigned long arg);
long kvm_arch_vcpu_ioctl(struct file *filp,
unsigned int ioctl, unsigned long arg);
+long kvm_arch_vcpu_unlocked_ioctl(struct file *filp,
+ unsigned int ioctl, unsigned long arg);
vm_fault_t kvm_arch_vcpu_fault(struct kvm_vcpu *vcpu, struct vm_fault *vmf);
int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext);
@@ -2437,8 +2439,6 @@ static inline bool kvm_arch_no_poll(struct kvm_vcpu *vcpu)
}
#endif /* CONFIG_HAVE_KVM_NO_POLL */
-long kvm_arch_vcpu_async_ioctl(struct file *filp,
- unsigned int ioctl, unsigned long arg);
void kvm_arch_guest_memory_reclaimed(struct kvm *kvm);
#ifdef CONFIG_HAVE_KVM_VCPU_RUN_PID_CHANGE