#include "book3s.h"
#include "trace.h"
-#define VM_STAT(x) offsetof(struct kvm, stat.x), KVM_STAT_VM
-#define VCPU_STAT(x) offsetof(struct kvm_vcpu, stat.x), KVM_STAT_VCPU
+#define VM_STAT(x, ...) offsetof(struct kvm, stat.x), KVM_STAT_VM, ## __VA_ARGS__
+#define VCPU_STAT(x, ...) offsetof(struct kvm_vcpu, stat.x), KVM_STAT_VCPU, ## __VA_ARGS__
/* #define EXIT_DEBUG */
{ "pthru_all", VCPU_STAT(pthru_all) },
{ "pthru_host", VCPU_STAT(pthru_host) },
{ "pthru_bad_aff", VCPU_STAT(pthru_bad_aff) },
- { "largepages_2M", VM_STAT(num_2M_pages) },
- { "largepages_1G", VM_STAT(num_1G_pages) },
+ { "largepages_2M", VM_STAT(num_2M_pages, .mode = 0444) },
+ { "largepages_1G", VM_STAT(num_1G_pages, .mode = 0444) },
{ NULL }
};
static u64 __read_mostly efer_reserved_bits = ~((u64)EFER_SCE);
#endif
-#define VM_STAT(x) offsetof(struct kvm, stat.x), KVM_STAT_VM
-#define VCPU_STAT(x) offsetof(struct kvm_vcpu, stat.x), KVM_STAT_VCPU
+#define VM_STAT(x, ...) offsetof(struct kvm, stat.x), KVM_STAT_VM, ## __VA_ARGS__
+#define VCPU_STAT(x, ...) offsetof(struct kvm_vcpu, stat.x), KVM_STAT_VCPU, ## __VA_ARGS__
#define KVM_X2APIC_API_VALID_FLAGS (KVM_X2APIC_API_USE_32BIT_IDS | \
KVM_X2APIC_API_DISABLE_BROADCAST_QUIRK)
{ "mmu_cache_miss", VM_STAT(mmu_cache_miss) },
{ "mmu_unsync", VM_STAT(mmu_unsync) },
{ "remote_tlb_flush", VM_STAT(remote_tlb_flush) },
- { "largepages", VM_STAT(lpages) },
+ { "largepages", VM_STAT(lpages, .mode = 0444) },
{ "max_mmu_page_hash_collisions",
VM_STAT(max_mmu_page_hash_collisions) },
{ NULL }
struct kvm_stat_data {
int offset;
+ int mode;
struct kvm *kvm;
};
const char *name;
int offset;
enum kvm_stat_kind kind;
+ int mode;
};
extern struct kvm_stats_debugfs_item debugfs_entries[];
extern struct dentry *kvm_debugfs_dir;
stat_data->kvm = kvm;
stat_data->offset = p->offset;
+ stat_data->mode = p->mode ? p->mode : 0644;
kvm->debugfs_stat_data[p - debugfs_entries] = stat_data;
- debugfs_create_file(p->name, 0644, kvm->debugfs_dentry,
+ debugfs_create_file(p->name, stat_data->mode, kvm->debugfs_dentry,
stat_data, stat_fops_per_vm[p->kind]);
}
return 0;
if (!refcount_inc_not_zero(&stat_data->kvm->users_count))
return -ENOENT;
- if (simple_attr_open(inode, file, get, set, fmt)) {
+ if (simple_attr_open(inode, file, get,
+ stat_data->mode & S_IWUGO ? set : NULL,
+ fmt)) {
kvm_put_kvm(stat_data->kvm);
return -ENOMEM;
}
kvm_debugfs_num_entries = 0;
for (p = debugfs_entries; p->name; ++p, kvm_debugfs_num_entries++) {
- debugfs_create_file(p->name, 0644, kvm_debugfs_dir,
+ int mode = p->mode ? p->mode : 0644;
+ debugfs_create_file(p->name, mode, kvm_debugfs_dir,
(void *)(long)p->offset,
stat_fops[p->kind]);
}