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author | Linus Torvalds <torvalds@linux-foundation.org> | 2023-07-30 21:19:08 +0300 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2023-07-30 21:19:08 +0300 |
commit | 98a05fe8cd5e0afe2b4c52b5013b53c44d615148 (patch) | |
tree | 4dc81ee43b45b9c0463fe0b1f92c4fbf06accc8a /virt/kvm | |
parent | c959e90094d6db8ee1bfbe1a9c571fbd35d4daac (diff) | |
parent | 5a7591176c47cce363c1eed704241e5d1c42c5a6 (diff) | |
download | linux-98a05fe8cd5e0afe2b4c52b5013b53c44d615148.tar.xz |
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull kvm fixes from Paolo Bonzini:
"x86:
- Do not register IRQ bypass consumer if posted interrupts not
supported
- Fix missed device interrupt due to non-atomic update of IRR
- Use GFP_KERNEL_ACCOUNT for pid_table in ipiv
- Make VMREAD error path play nice with noinstr
- x86: Acquire SRCU read lock when handling fastpath MSR writes
- Support linking rseq tests statically against glibc 2.35+
- Fix reference count for stats file descriptors
- Detect userspace setting invalid CR0
Non-KVM:
- Remove coccinelle script that has caused multiple confusion
("debugfs, coccinelle: check for obsolete DEFINE_SIMPLE_ATTRIBUTE()
usage", acked by Greg)"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (21 commits)
KVM: selftests: Expand x86's sregs test to cover illegal CR0 values
KVM: VMX: Don't fudge CR0 and CR4 for restricted L2 guest
KVM: x86: Disallow KVM_SET_SREGS{2} if incoming CR0 is invalid
Revert "debugfs, coccinelle: check for obsolete DEFINE_SIMPLE_ATTRIBUTE() usage"
KVM: selftests: Verify stats fd is usable after VM fd has been closed
KVM: selftests: Verify stats fd can be dup()'d and read
KVM: selftests: Verify userspace can create "redundant" binary stats files
KVM: selftests: Explicitly free vcpus array in binary stats test
KVM: selftests: Clean up stats fd in common stats_test() helper
KVM: selftests: Use pread() to read binary stats header
KVM: Grab a reference to KVM for VM and vCPU stats file descriptors
selftests/rseq: Play nice with binaries statically linked against glibc 2.35+
Revert "KVM: SVM: Skip WRMSR fastpath on VM-Exit if next RIP isn't valid"
KVM: x86: Acquire SRCU read lock when handling fastpath MSR writes
KVM: VMX: Use vmread_error() to report VM-Fail in "goto" path
KVM: VMX: Make VMREAD error path play nice with noinstr
KVM: x86/irq: Conditionally register IRQ bypass consumer again
KVM: X86: Use GFP_KERNEL_ACCOUNT for pid_table in ipiv
KVM: x86: check the kvm_cpu_get_interrupt result before using it
KVM: x86: VMX: set irr_pending in kvm_apic_update_irr
...
Diffstat (limited to 'virt/kvm')
-rw-r--r-- | virt/kvm/kvm_main.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c index dfbaafbe3a00..5bbb5612b207 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -4035,8 +4035,17 @@ static ssize_t kvm_vcpu_stats_read(struct file *file, char __user *user_buffer, sizeof(vcpu->stat), user_buffer, size, offset); } +static int kvm_vcpu_stats_release(struct inode *inode, struct file *file) +{ + struct kvm_vcpu *vcpu = file->private_data; + + kvm_put_kvm(vcpu->kvm); + return 0; +} + static const struct file_operations kvm_vcpu_stats_fops = { .read = kvm_vcpu_stats_read, + .release = kvm_vcpu_stats_release, .llseek = noop_llseek, }; @@ -4057,6 +4066,9 @@ static int kvm_vcpu_ioctl_get_stats_fd(struct kvm_vcpu *vcpu) put_unused_fd(fd); return PTR_ERR(file); } + + kvm_get_kvm(vcpu->kvm); + file->f_mode |= FMODE_PREAD; fd_install(fd, file); @@ -4701,8 +4713,17 @@ static ssize_t kvm_vm_stats_read(struct file *file, char __user *user_buffer, sizeof(kvm->stat), user_buffer, size, offset); } +static int kvm_vm_stats_release(struct inode *inode, struct file *file) +{ + struct kvm *kvm = file->private_data; + + kvm_put_kvm(kvm); + return 0; +} + static const struct file_operations kvm_vm_stats_fops = { .read = kvm_vm_stats_read, + .release = kvm_vm_stats_release, .llseek = noop_llseek, }; @@ -4721,6 +4742,9 @@ static int kvm_vm_ioctl_get_stats_fd(struct kvm *kvm) put_unused_fd(fd); return PTR_ERR(file); } + + kvm_get_kvm(kvm); + file->f_mode |= FMODE_PREAD; fd_install(fd, file); |