[PATCH v3 17/23] KVM: s390: Stop using CONFIG_PGSTE

Claudio Imbrenda
2025-11-06T16:11:34Z

Switch to using IS_ENABLED(CONFIG_KVM) instead of CONFIG_PGSTE, since
the latter will be removed soon.

Many CONFIG_PGSTE are left behind, because they will be removed
completely in upcoming patches. The ones replaced here are mostly the
ones that will stay.

Signed-off-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Reviewed-by: Steffen Eiden <seiden@linux.ibm.com>
---
arch/s390/include/asm/mmu_context.h | 2 +-
arch/s390/include/asm/pgtable.h | 4 ++--
arch/s390/mm/fault.c | 4 ++--
3 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/arch/s390/include/asm/mmu_context.h b/arch/s390/include/asm/mmu_context.h
index d9b8501bc93d..48e548c01daa 100644
--- a/arch/s390/include/asm/mmu_context.h
+++ b/arch/s390/include/asm/mmu_context.h
@@ -29,7 +29,7 @@ static inline int init_new_context(struct task_struct *tsk,
atomic_set(&mm->context.protected_count, 0);
mm->context.gmap_asce = 0;
mm->context.flush_mm = 0;
-#ifdef CONFIG_PGSTE
+#if IS_ENABLED(CONFIG_KVM)
mm->context.has_pgste = 0;
mm->context.uses_skeys = 0;
mm->context.uses_cmm = 0;
diff --git a/arch/s390/include/asm/pgtable.h b/arch/s390/include/asm/pgtable.h
index b9887ea6c045..8b8fc0e2d907 100644
--- a/arch/s390/include/asm/pgtable.h
+++ b/arch/s390/include/asm/pgtable.h
@@ -577,7 +577,7 @@ static inline int mm_has_pgste(struct mm_struct *mm)

static inline int mm_is_protected(struct mm_struct *mm)
{
-#ifdef CONFIG_PGSTE
+#if IS_ENABLED(CONFIG_KVM)
if (unlikely(atomic_read(&mm->context.protected_count)))
return 1;
#endif
@@ -632,7 +632,7 @@ static inline pud_t set_pud_bit(pud_t pud, pgprot_t prot)
#define mm_forbids_zeropage mm_forbids_zeropage
static inline int mm_forbids_zeropage(struct mm_struct *mm)
{
-#ifdef CONFIG_PGSTE
+#if IS_ENABLED(CONFIG_KVM)
if (!mm->context.allow_cow_sharing)
return 1;
#endif
diff --git a/arch/s390/mm/fault.c b/arch/s390/mm/fault.c
index e1ad05bfd28a..683afd496190 100644
--- a/arch/s390/mm/fault.c
+++ b/arch/s390/mm/fault.c
@@ -398,7 +398,7 @@ void do_dat_exception(struct pt_regs *regs)
}
NOKPROBE_SYMBOL(do_dat_exception);

-#if IS_ENABLED(CONFIG_PGSTE)
+#if IS_ENABLED(CONFIG_KVM)

void do_secure_storage_access(struct pt_regs *regs)
{
@@ -465,4 +465,4 @@ void do_secure_storage_access(struct pt_regs *regs)
}
NOKPROBE_SYMBOL(do_secure_storage_access);

-#endif /* CONFIG_PGSTE */
+#endif /* CONFIG_KVM */
--
2.51.1