diff options
Diffstat (limited to 'arch/x86/kvm/svm/sev.c')
| -rw-r--r-- | arch/x86/kvm/svm/sev.c | 27 |
1 files changed, 15 insertions, 12 deletions
diff --git a/arch/x86/kvm/svm/sev.c b/arch/x86/kvm/svm/sev.c index c25aeb550cd9..69ae5e1b3120 100644 --- a/arch/x86/kvm/svm/sev.c +++ b/arch/x86/kvm/svm/sev.c @@ -12,6 +12,7 @@ #include <linux/kvm_host.h> #include <linux/kernel.h> #include <linux/highmem.h> +#include <linux/psp.h> #include <linux/psp-sev.h> #include <linux/pagemap.h> #include <linux/swap.h> @@ -1767,18 +1768,20 @@ int sev_vm_move_enc_context_from(struct kvm *kvm, unsigned int source_fd) { struct kvm_sev_info *dst_sev = &to_kvm_svm(kvm)->sev_info; struct kvm_sev_info *src_sev, *cg_cleanup_sev; - struct file *source_kvm_file; + struct fd f = fdget(source_fd); struct kvm *source_kvm; bool charged = false; int ret; - source_kvm_file = fget(source_fd); - if (!file_is_kvm(source_kvm_file)) { + if (!f.file) + return -EBADF; + + if (!file_is_kvm(f.file)) { ret = -EBADF; goto out_fput; } - source_kvm = source_kvm_file->private_data; + source_kvm = f.file->private_data; ret = sev_lock_two_vms(kvm, source_kvm); if (ret) goto out_fput; @@ -1828,8 +1831,7 @@ out_dst_cgroup: out_unlock: sev_unlock_two_vms(kvm, source_kvm); out_fput: - if (source_kvm_file) - fput(source_kvm_file); + fdput(f); return ret; } @@ -2046,18 +2048,20 @@ failed: int sev_vm_copy_enc_context_from(struct kvm *kvm, unsigned int source_fd) { - struct file *source_kvm_file; + struct fd f = fdget(source_fd); struct kvm *source_kvm; struct kvm_sev_info *source_sev, *mirror_sev; int ret; - source_kvm_file = fget(source_fd); - if (!file_is_kvm(source_kvm_file)) { + if (!f.file) + return -EBADF; + + if (!file_is_kvm(f.file)) { ret = -EBADF; goto e_source_fput; } - source_kvm = source_kvm_file->private_data; + source_kvm = f.file->private_data; ret = sev_lock_two_vms(kvm, source_kvm); if (ret) goto e_source_fput; @@ -2103,8 +2107,7 @@ int sev_vm_copy_enc_context_from(struct kvm *kvm, unsigned int source_fd) e_unlock: sev_unlock_two_vms(kvm, source_kvm); e_source_fput: - if (source_kvm_file) - fput(source_kvm_file); + fdput(f); return ret; } |