summaryrefslogtreecommitdiff
path: root/arch/powerpc/kvm/book3s_64_mmu_radix.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/powerpc/kvm/book3s_64_mmu_radix.c')
-rw-r--r--arch/powerpc/kvm/book3s_64_mmu_radix.c186
1 files changed, 103 insertions, 83 deletions
diff --git a/arch/powerpc/kvm/book3s_64_mmu_radix.c b/arch/powerpc/kvm/book3s_64_mmu_radix.c
index 3cb0c9843d01..b3e6e73d6a08 100644
--- a/arch/powerpc/kvm/book3s_64_mmu_radix.c
+++ b/arch/powerpc/kvm/book3s_64_mmu_radix.c
@@ -15,12 +15,15 @@
#include <asm/kvm_ppc.h>
#include <asm/kvm_book3s.h>
+#include "book3s_hv.h"
#include <asm/page.h>
#include <asm/mmu.h>
#include <asm/pgalloc.h>
#include <asm/pte-walk.h>
#include <asm/ultravisor.h>
#include <asm/kvm_book3s_uvmem.h>
+#include <asm/plpar_wrappers.h>
+#include <asm/firmware.h>
/*
* Supported radix tree geometry.
@@ -33,14 +36,21 @@ unsigned long __kvmhv_copy_tofrom_guest_radix(int lpid, int pid,
gva_t eaddr, void *to, void *from,
unsigned long n)
{
- int uninitialized_var(old_pid), old_lpid;
+ int old_pid, old_lpid;
unsigned long quadrant, ret = n;
bool is_load = !!to;
+ if (kvmhv_is_nestedv2())
+ return H_UNSUPPORTED;
+
/* Can't access quadrants 1 or 2 in non-HV mode, call the HV to do it */
if (kvmhv_on_pseries())
return plpar_hcall_norets(H_COPY_TOFROM_GUEST, lpid, pid, eaddr,
- __pa(to), __pa(from), n);
+ (to != NULL) ? __pa(to): 0,
+ (from != NULL) ? __pa(from): 0, n);
+
+ if (eaddr & (0xFFFUL << 52))
+ return ret;
quadrant = 1;
if (!pid)
@@ -52,6 +62,8 @@ unsigned long __kvmhv_copy_tofrom_guest_radix(int lpid, int pid,
preempt_disable();
+ asm volatile("hwsync" ::: "memory");
+ isync();
/* switch the lpid first to avoid running host with unallocated pid */
old_lpid = mfspr(SPRN_LPID);
if (old_lpid != lpid)
@@ -63,11 +75,15 @@ unsigned long __kvmhv_copy_tofrom_guest_radix(int lpid, int pid,
}
isync();
+ pagefault_disable();
if (is_load)
- ret = probe_user_read(to, (const void __user *)from, n);
+ ret = __copy_from_user_inatomic(to, (const void __user *)from, n);
else
- ret = probe_user_write((void __user *)to, from, n);
+ ret = __copy_to_user_inatomic((void __user *)to, from, n);
+ pagefault_enable();
+ asm volatile("hwsync" ::: "memory");
+ isync();
/* switch the pid first to avoid running host with unallocated pid */
if (quadrant == 1 && pid != old_pid)
mtspr(SPRN_PID, old_pid);
@@ -79,13 +95,12 @@ unsigned long __kvmhv_copy_tofrom_guest_radix(int lpid, int pid,
return ret;
}
-EXPORT_SYMBOL_GPL(__kvmhv_copy_tofrom_guest_radix);
static long kvmhv_copy_tofrom_guest_radix(struct kvm_vcpu *vcpu, gva_t eaddr,
void *to, void *from, unsigned long n)
{
int lpid = vcpu->kvm->arch.lpid;
- int pid = vcpu->arch.pid;
+ int pid;
/* This would cause a data segment intr so don't allow the access */
if (eaddr & (0x3FFUL << 52))
@@ -98,6 +113,8 @@ static long kvmhv_copy_tofrom_guest_radix(struct kvm_vcpu *vcpu, gva_t eaddr,
/* If accessing quadrant 3 then pid is expected to be 0 */
if (((eaddr >> 62) & 0x3) == 0x3)
pid = 0;
+ else
+ pid = kvmppc_get_pid(vcpu);
eaddr &= ~(0xFFFUL << 52);
@@ -115,14 +132,12 @@ long kvmhv_copy_from_guest_radix(struct kvm_vcpu *vcpu, gva_t eaddr, void *to,
return ret;
}
-EXPORT_SYMBOL_GPL(kvmhv_copy_from_guest_radix);
long kvmhv_copy_to_guest_radix(struct kvm_vcpu *vcpu, gva_t eaddr, void *from,
unsigned long n)
{
return kvmhv_copy_tofrom_guest_radix(vcpu, eaddr, NULL, from, n);
}
-EXPORT_SYMBOL_GPL(kvmhv_copy_to_guest_radix);
int kvmppc_mmu_walk_radix_tree(struct kvm_vcpu *vcpu, gva_t eaddr,
struct kvmppc_pte *gpte, u64 root,
@@ -160,7 +175,10 @@ int kvmppc_mmu_walk_radix_tree(struct kvm_vcpu *vcpu, gva_t eaddr,
return -EINVAL;
/* Read the entry from guest memory */
addr = base + (index * sizeof(rpte));
+
+ kvm_vcpu_srcu_read_lock(vcpu);
ret = kvm_read_guest(kvm, addr, &rpte, sizeof(rpte));
+ kvm_vcpu_srcu_read_unlock(vcpu);
if (ret) {
if (pte_ret_p)
*pte_ret_p = addr;
@@ -236,7 +254,9 @@ int kvmppc_mmu_radix_translate_table(struct kvm_vcpu *vcpu, gva_t eaddr,
/* Read the table to find the root of the radix tree */
ptbl = (table & PRTB_MASK) + (table_index * sizeof(entry));
+ kvm_vcpu_srcu_read_lock(vcpu);
ret = kvm_read_guest(kvm, ptbl, &entry, sizeof(entry));
+ kvm_vcpu_srcu_read_unlock(vcpu);
if (ret)
return ret;
@@ -256,7 +276,7 @@ int kvmppc_mmu_radix_xlate(struct kvm_vcpu *vcpu, gva_t eaddr,
/* Work out effective PID */
switch (eaddr >> 62) {
case 0:
- pid = vcpu->arch.pid;
+ pid = kvmppc_get_pid(vcpu);
break;
case 3:
pid = 0;
@@ -280,9 +300,9 @@ int kvmppc_mmu_radix_xlate(struct kvm_vcpu *vcpu, gva_t eaddr,
} else {
if (!(pte & _PAGE_PRIVILEGED)) {
/* Check AMR/IAMR to see if strict mode is in force */
- if (vcpu->arch.amr & (1ul << 62))
+ if (kvmppc_get_amr_hv(vcpu) & (1ul << 62))
gpte->may_read = 0;
- if (vcpu->arch.amr & (1ul << 63))
+ if (kvmppc_get_amr_hv(vcpu) & (1ul << 63))
gpte->may_write = 0;
if (vcpu->arch.iamr & (1ul << 62))
gpte->may_execute = 0;
@@ -293,7 +313,7 @@ int kvmppc_mmu_radix_xlate(struct kvm_vcpu *vcpu, gva_t eaddr,
}
void kvmppc_radix_tlbie_page(struct kvm *kvm, unsigned long addr,
- unsigned int pshift, unsigned int lpid)
+ unsigned int pshift, u64 lpid)
{
unsigned long psize = PAGE_SIZE;
int psi;
@@ -313,14 +333,24 @@ void kvmppc_radix_tlbie_page(struct kvm *kvm, unsigned long addr,
}
psi = shift_to_mmu_psize(pshift);
- rb = addr | (mmu_get_ap(psi) << PPC_BITLSHIFT(58));
- rc = plpar_hcall_norets(H_TLB_INVALIDATE, H_TLBIE_P1_ENC(0, 0, 1),
- lpid, rb);
+
+ if (!firmware_has_feature(FW_FEATURE_RPT_INVALIDATE)) {
+ rb = addr | (mmu_get_ap(psi) << PPC_BITLSHIFT(58));
+ rc = plpar_hcall_norets(H_TLB_INVALIDATE, H_TLBIE_P1_ENC(0, 0, 1),
+ lpid, rb);
+ } else {
+ rc = pseries_rpt_invalidate(lpid, H_RPTI_TARGET_CMMU,
+ H_RPTI_TYPE_NESTED |
+ H_RPTI_TYPE_TLB,
+ psize_to_rpti_pgsize(psi),
+ addr, addr + psize);
+ }
+
if (rc)
pr_err("KVM: TLB page invalidation hcall failed, rc=%ld\n", rc);
}
-static void kvmppc_radix_flush_pwc(struct kvm *kvm, unsigned int lpid)
+static void kvmppc_radix_flush_pwc(struct kvm *kvm, u64 lpid)
{
long rc;
@@ -329,8 +359,14 @@ static void kvmppc_radix_flush_pwc(struct kvm *kvm, unsigned int lpid)
return;
}
- rc = plpar_hcall_norets(H_TLB_INVALIDATE, H_TLBIE_P1_ENC(1, 0, 1),
- lpid, TLBIEL_INVAL_SET_LPID);
+ if (!firmware_has_feature(FW_FEATURE_RPT_INVALIDATE))
+ rc = plpar_hcall_norets(H_TLB_INVALIDATE, H_TLBIE_P1_ENC(1, 0, 1),
+ lpid, TLBIEL_INVAL_SET_LPID);
+ else
+ rc = pseries_rpt_invalidate(lpid, H_RPTI_TARGET_CMMU,
+ H_RPTI_TYPE_NESTED |
+ H_RPTI_TYPE_PWC, H_RPTI_PAGE_ALL,
+ 0, -1UL);
if (rc)
pr_err("KVM: TLB PWC invalidation hcall failed, rc=%ld\n", rc);
}
@@ -342,7 +378,7 @@ static unsigned long kvmppc_radix_update_pte(struct kvm *kvm, pte_t *ptep,
return __radix_pte_update(ptep, clr, set);
}
-void kvmppc_radix_set_pte_at(struct kvm *kvm, unsigned long addr,
+static void kvmppc_radix_set_pte_at(struct kvm *kvm, unsigned long addr,
pte_t *ptep, pte_t pte)
{
radix__set_pte_at(kvm->mm, addr, ptep, pte, 0);
@@ -387,7 +423,7 @@ static void kvmppc_pmd_free(pmd_t *pmdp)
void kvmppc_unmap_pte(struct kvm *kvm, pte_t *pte, unsigned long gpa,
unsigned int shift,
const struct kvm_memory_slot *memslot,
- unsigned int lpid)
+ u64 lpid)
{
unsigned long old;
@@ -438,7 +474,7 @@ void kvmppc_unmap_pte(struct kvm *kvm, pte_t *pte, unsigned long gpa,
* (or 4kB) mappings (of sub-pages of the same 2MB page).
*/
static void kvmppc_unmap_free_pte(struct kvm *kvm, pte_t *pte, bool full,
- unsigned int lpid)
+ u64 lpid)
{
if (full) {
memset(pte, 0, sizeof(long) << RADIX_PTE_INDEX_SIZE);
@@ -459,7 +495,7 @@ static void kvmppc_unmap_free_pte(struct kvm *kvm, pte_t *pte, bool full,
}
static void kvmppc_unmap_free_pmd(struct kvm *kvm, pmd_t *pmd, bool full,
- unsigned int lpid)
+ u64 lpid)
{
unsigned long im;
pmd_t *p = pmd;
@@ -467,7 +503,7 @@ static void kvmppc_unmap_free_pmd(struct kvm *kvm, pmd_t *pmd, bool full,
for (im = 0; im < PTRS_PER_PMD; ++im, ++p) {
if (!pmd_present(*p))
continue;
- if (pmd_is_leaf(*p)) {
+ if (pmd_leaf(*p)) {
if (full) {
pmd_clear(p);
} else {
@@ -479,7 +515,7 @@ static void kvmppc_unmap_free_pmd(struct kvm *kvm, pmd_t *pmd, bool full,
} else {
pte_t *pte;
- pte = pte_offset_map(p, 0);
+ pte = pte_offset_kernel(p, 0);
kvmppc_unmap_free_pte(kvm, pte, full, lpid);
pmd_clear(p);
}
@@ -488,7 +524,7 @@ static void kvmppc_unmap_free_pmd(struct kvm *kvm, pmd_t *pmd, bool full,
}
static void kvmppc_unmap_free_pud(struct kvm *kvm, pud_t *pud,
- unsigned int lpid)
+ u64 lpid)
{
unsigned long iu;
pud_t *p = pud;
@@ -496,7 +532,7 @@ static void kvmppc_unmap_free_pud(struct kvm *kvm, pud_t *pud,
for (iu = 0; iu < PTRS_PER_PUD; ++iu, ++p) {
if (!pud_present(*p))
continue;
- if (pud_is_leaf(*p)) {
+ if (pud_leaf(*p)) {
pud_clear(p);
} else {
pmd_t *pmd;
@@ -509,7 +545,7 @@ static void kvmppc_unmap_free_pud(struct kvm *kvm, pud_t *pud,
pud_free(kvm->mm, pud);
}
-void kvmppc_free_pgtable_radix(struct kvm *kvm, pgd_t *pgd, unsigned int lpid)
+void kvmppc_free_pgtable_radix(struct kvm *kvm, pgd_t *pgd, u64 lpid)
{
unsigned long ig;
@@ -536,7 +572,7 @@ void kvmppc_free_radix(struct kvm *kvm)
}
static void kvmppc_unmap_free_pmd_entry_table(struct kvm *kvm, pmd_t *pmd,
- unsigned long gpa, unsigned int lpid)
+ unsigned long gpa, u64 lpid)
{
pte_t *pte = pte_offset_kernel(pmd, 0);
@@ -552,7 +588,7 @@ static void kvmppc_unmap_free_pmd_entry_table(struct kvm *kvm, pmd_t *pmd,
}
static void kvmppc_unmap_free_pud_entry_table(struct kvm *kvm, pud_t *pud,
- unsigned long gpa, unsigned int lpid)
+ unsigned long gpa, u64 lpid)
{
pmd_t *pmd = pmd_offset(pud, 0);
@@ -578,7 +614,7 @@ static void kvmppc_unmap_free_pud_entry_table(struct kvm *kvm, pud_t *pud,
int kvmppc_create_pte(struct kvm *kvm, pgd_t *pgtable, pte_t pte,
unsigned long gpa, unsigned int level,
- unsigned long mmu_seq, unsigned int lpid,
+ unsigned long mmu_seq, u64 lpid,
unsigned long *rmapp, struct rmap_nested **n_rmap)
{
pgd_t *pgd;
@@ -599,18 +635,18 @@ int kvmppc_create_pte(struct kvm *kvm, pgd_t *pgtable, pte_t pte,
new_pud = pud_alloc_one(kvm->mm, gpa);
pmd = NULL;
- if (pud && pud_present(*pud) && !pud_is_leaf(*pud))
+ if (pud && pud_present(*pud) && !pud_leaf(*pud))
pmd = pmd_offset(pud, gpa);
else if (level <= 1)
new_pmd = kvmppc_pmd_alloc();
- if (level == 0 && !(pmd && pmd_present(*pmd) && !pmd_is_leaf(*pmd)))
+ if (level == 0 && !(pmd && pmd_present(*pmd) && !pmd_leaf(*pmd)))
new_ptep = kvmppc_pte_alloc();
/* Check if we might have been invalidated; let the guest retry if so */
spin_lock(&kvm->mmu_lock);
ret = -EAGAIN;
- if (mmu_notifier_retry(kvm, mmu_seq))
+ if (mmu_invalidate_retry(kvm, mmu_seq))
goto out_unlock;
/* Now traverse again under the lock and change the tree */
@@ -622,7 +658,7 @@ int kvmppc_create_pte(struct kvm *kvm, pgd_t *pgtable, pte_t pte,
new_pud = NULL;
}
pud = pud_offset(p4d, gpa);
- if (pud_is_leaf(*pud)) {
+ if (pud_leaf(*pud)) {
unsigned long hgpa = gpa & PUD_MASK;
/* Check if we raced and someone else has set the same thing */
@@ -673,7 +709,7 @@ int kvmppc_create_pte(struct kvm *kvm, pgd_t *pgtable, pte_t pte,
new_pmd = NULL;
}
pmd = pmd_offset(pud, gpa);
- if (pmd_is_leaf(*pmd)) {
+ if (pmd_leaf(*pmd)) {
unsigned long lgpa = gpa & PMD_MASK;
/* Check if we raced and someone else has set the same thing */
@@ -755,7 +791,7 @@ int kvmppc_create_pte(struct kvm *kvm, pgd_t *pgtable, pte_t pte,
}
bool kvmppc_hv_handle_set_rc(struct kvm *kvm, bool nested, bool writing,
- unsigned long gpa, unsigned int lpid)
+ unsigned long gpa, u64 lpid)
{
unsigned long pgflags;
unsigned int shift;
@@ -785,7 +821,7 @@ bool kvmppc_hv_handle_set_rc(struct kvm *kvm, bool nested, bool writing,
int kvmppc_book3s_instantiate_page(struct kvm_vcpu *vcpu,
unsigned long gpa,
struct kvm_memory_slot *memslot,
- bool writing, bool kvm_ro,
+ bool writing,
pte_t *inserted_pte, unsigned int *levelp)
{
struct kvm *kvm = vcpu->kvm;
@@ -793,40 +829,21 @@ int kvmppc_book3s_instantiate_page(struct kvm_vcpu *vcpu,
unsigned long mmu_seq;
unsigned long hva, gfn = gpa >> PAGE_SHIFT;
bool upgrade_write = false;
- bool *upgrade_p = &upgrade_write;
pte_t pte, *ptep;
unsigned int shift, level;
int ret;
bool large_enable;
+ kvm_pfn_t pfn;
/* used to check for invalidations in progress */
- mmu_seq = kvm->mmu_notifier_seq;
+ mmu_seq = kvm->mmu_invalidate_seq;
smp_rmb();
- /*
- * Do a fast check first, since __gfn_to_pfn_memslot doesn't
- * do it with !atomic && !async, which is how we call it.
- * We always ask for write permission since the common case
- * is that the page is writable.
- */
hva = gfn_to_hva_memslot(memslot, gfn);
- if (!kvm_ro && get_user_page_fast_only(hva, FOLL_WRITE, &page)) {
- upgrade_write = true;
- } else {
- unsigned long pfn;
-
- /* Call KVM generic code to do the slow-path check */
- pfn = __gfn_to_pfn_memslot(memslot, gfn, false, NULL,
- writing, upgrade_p);
- if (is_error_noslot_pfn(pfn))
- return -EFAULT;
- page = NULL;
- if (pfn_valid(pfn)) {
- page = pfn_to_page(pfn);
- if (PageReserved(page))
- page = NULL;
- }
- }
+ pfn = __kvm_faultin_pfn(memslot, gfn, writing ? FOLL_WRITE : 0,
+ &upgrade_write, &page);
+ if (is_error_noslot_pfn(pfn))
+ return -EFAULT;
/*
* Read the PTE from the process' radix tree and use that
@@ -914,7 +931,6 @@ int kvmppc_book3s_radix_page_fault(struct kvm_vcpu *vcpu,
struct kvm_memory_slot *memslot;
long ret;
bool writing = !!(dsisr & DSISR_ISSTORE);
- bool kvm_ro = false;
/* Check for unusual errors */
if (dsisr & DSISR_UNSUPP_MMU) {
@@ -924,7 +940,9 @@ int kvmppc_book3s_radix_page_fault(struct kvm_vcpu *vcpu,
if (dsisr & DSISR_BADACCESS) {
/* Reflect to the guest as DSI */
pr_err("KVM: Got radix HV page fault with DSISR=%lx\n", dsisr);
- kvmppc_core_queue_data_storage(vcpu, ea, dsisr);
+ kvmppc_core_queue_data_storage(vcpu,
+ kvmppc_get_msr(vcpu) & SRR1_PREFIXED,
+ ea, dsisr);
return RESUME_GUEST;
}
@@ -949,7 +967,9 @@ int kvmppc_book3s_radix_page_fault(struct kvm_vcpu *vcpu,
* Bad address in guest page table tree, or other
* unusual error - reflect it to the guest as DSI.
*/
- kvmppc_core_queue_data_storage(vcpu, ea, dsisr);
+ kvmppc_core_queue_data_storage(vcpu,
+ kvmppc_get_msr(vcpu) & SRR1_PREFIXED,
+ ea, dsisr);
return RESUME_GUEST;
}
return kvmppc_hv_emulate_mmio(vcpu, gpa, ea, writing);
@@ -958,11 +978,11 @@ int kvmppc_book3s_radix_page_fault(struct kvm_vcpu *vcpu,
if (memslot->flags & KVM_MEM_READONLY) {
if (writing) {
/* give the guest a DSI */
- kvmppc_core_queue_data_storage(vcpu, ea, DSISR_ISSTORE |
- DSISR_PROTFAULT);
+ kvmppc_core_queue_data_storage(vcpu,
+ kvmppc_get_msr(vcpu) & SRR1_PREFIXED,
+ ea, DSISR_ISSTORE | DSISR_PROTFAULT);
return RESUME_GUEST;
}
- kvm_ro = true;
}
/* Failed to set the reference/change bits */
@@ -980,7 +1000,7 @@ int kvmppc_book3s_radix_page_fault(struct kvm_vcpu *vcpu,
/* Try to insert a pte */
ret = kvmppc_book3s_instantiate_page(vcpu, gpa, memslot, writing,
- kvm_ro, NULL, NULL);
+ NULL, NULL);
if (ret == 0 || ret == -EAGAIN)
ret = RESUME_GUEST;
@@ -988,8 +1008,8 @@ int kvmppc_book3s_radix_page_fault(struct kvm_vcpu *vcpu,
}
/* Called with kvm->mmu_lock held */
-int kvm_unmap_radix(struct kvm *kvm, struct kvm_memory_slot *memslot,
- unsigned long gfn)
+void kvm_unmap_radix(struct kvm *kvm, struct kvm_memory_slot *memslot,
+ unsigned long gfn)
{
pte_t *ptep;
unsigned long gpa = gfn << PAGE_SHIFT;
@@ -997,24 +1017,23 @@ int kvm_unmap_radix(struct kvm *kvm, struct kvm_memory_slot *memslot,
if (kvm->arch.secure_guest & KVMPPC_SECURE_INIT_DONE) {
uv_page_inval(kvm->arch.lpid, gpa, PAGE_SHIFT);
- return 0;
+ return;
}
ptep = find_kvm_secondary_pte(kvm, gpa, &shift);
if (ptep && pte_present(*ptep))
kvmppc_unmap_pte(kvm, ptep, gpa, shift, memslot,
kvm->arch.lpid);
- return 0;
}
/* Called with kvm->mmu_lock held */
-int kvm_age_radix(struct kvm *kvm, struct kvm_memory_slot *memslot,
- unsigned long gfn)
+bool kvm_age_radix(struct kvm *kvm, struct kvm_memory_slot *memslot,
+ unsigned long gfn)
{
pte_t *ptep;
unsigned long gpa = gfn << PAGE_SHIFT;
unsigned int shift;
- int ref = 0;
+ bool ref = false;
unsigned long old, *rmapp;
if (kvm->arch.secure_guest & KVMPPC_SECURE_INIT_DONE)
@@ -1030,26 +1049,27 @@ int kvm_age_radix(struct kvm *kvm, struct kvm_memory_slot *memslot,
kvmhv_update_nest_rmap_rc_list(kvm, rmapp, _PAGE_ACCESSED, 0,
old & PTE_RPN_MASK,
1UL << shift);
- ref = 1;
+ ref = true;
}
return ref;
}
/* Called with kvm->mmu_lock held */
-int kvm_test_age_radix(struct kvm *kvm, struct kvm_memory_slot *memslot,
- unsigned long gfn)
+bool kvm_test_age_radix(struct kvm *kvm, struct kvm_memory_slot *memslot,
+ unsigned long gfn)
+
{
pte_t *ptep;
unsigned long gpa = gfn << PAGE_SHIFT;
unsigned int shift;
- int ref = 0;
+ bool ref = false;
if (kvm->arch.secure_guest & KVMPPC_SECURE_INIT_DONE)
return ref;
ptep = find_kvm_secondary_pte(kvm, gpa, &shift);
if (ptep && pte_present(*ptep) && pte_young(*ptep))
- ref = 1;
+ ref = true;
return ref;
}
@@ -1161,7 +1181,7 @@ void kvmppc_radix_flush_memslot(struct kvm *kvm,
* Increase the mmu notifier sequence number to prevent any page
* fault that read the memslot earlier from writing a PTE.
*/
- kvm->mmu_notifier_seq++;
+ kvm->mmu_invalidate_seq++;
spin_unlock(&kvm->mmu_lock);
}
@@ -1426,7 +1446,7 @@ static const struct file_operations debugfs_radix_fops = {
void kvmhv_radix_debugfs_init(struct kvm *kvm)
{
- debugfs_create_file("radix", 0400, kvm->arch.debugfs_dir, kvm,
+ debugfs_create_file("radix", 0400, kvm->debugfs_dentry, kvm,
&debugfs_radix_fops);
}
generated by cgit (git 2.34.1) at 2025-12-29 09:56:54 +0000