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authorPaolo Bonzini <pbonzini@redhat.com>2021-11-11 18:13:38 +0300
committerPaolo Bonzini <pbonzini@redhat.com>2021-11-11 18:35:26 +0300
commitf4d316537059b274452727e86f46ff3bdefdde4d (patch)
tree50f1467a3a2c837d8f8a9d759a276acb159846d7 /virt/kvm
parentb67a4cc35c9f726999fa29880713ce72d4e39e8d (diff)
downloadlinux-f4d316537059b274452727e86f46ff3bdefdde4d.tar.xz
KVM: generalize "bugged" VM to "dead" VM
Generalize KVM_REQ_VM_BUGGED so that it can be called even in cases where it is by design that the VM cannot be operated upon. In this case any KVM_BUG_ON should still warn, so introduce a new flag kvm->vm_dead that is separate from kvm->vm_bugged. Suggested-by: Sean Christopherson <seanjc@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'virt/kvm')
-rw-r--r--virt/kvm/kvm_main.c10
1 files changed, 5 insertions, 5 deletions
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 3f6d450355f0..d31724500501 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -3747,7 +3747,7 @@ static long kvm_vcpu_ioctl(struct file *filp,
struct kvm_fpu *fpu = NULL;
struct kvm_sregs *kvm_sregs = NULL;
- if (vcpu->kvm->mm != current->mm || vcpu->kvm->vm_bugged)
+ if (vcpu->kvm->mm != current->mm || vcpu->kvm->vm_dead)
return -EIO;
if (unlikely(_IOC_TYPE(ioctl) != KVMIO))
@@ -3957,7 +3957,7 @@ static long kvm_vcpu_compat_ioctl(struct file *filp,
void __user *argp = compat_ptr(arg);
int r;
- if (vcpu->kvm->mm != current->mm || vcpu->kvm->vm_bugged)
+ if (vcpu->kvm->mm != current->mm || vcpu->kvm->vm_dead)
return -EIO;
switch (ioctl) {
@@ -4023,7 +4023,7 @@ static long kvm_device_ioctl(struct file *filp, unsigned int ioctl,
{
struct kvm_device *dev = filp->private_data;
- if (dev->kvm->mm != current->mm || dev->kvm->vm_bugged)
+ if (dev->kvm->mm != current->mm || dev->kvm->vm_dead)
return -EIO;
switch (ioctl) {
@@ -4345,7 +4345,7 @@ static long kvm_vm_ioctl(struct file *filp,
void __user *argp = (void __user *)arg;
int r;
- if (kvm->mm != current->mm || kvm->vm_bugged)
+ if (kvm->mm != current->mm || kvm->vm_dead)
return -EIO;
switch (ioctl) {
case KVM_CREATE_VCPU:
@@ -4556,7 +4556,7 @@ static long kvm_vm_compat_ioctl(struct file *filp,
struct kvm *kvm = filp->private_data;
int r;
- if (kvm->mm != current->mm || kvm->vm_bugged)
+ if (kvm->mm != current->mm || kvm->vm_dead)
return -EIO;
switch (ioctl) {
#ifdef CONFIG_KVM_GENERIC_DIRTYLOG_READ_PROTECT