linux-kernel - [PATCH v3 17/23] KVM: s390: Stop using CONFIG

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Message-ID: <20251106161117.350395-18-imbrenda@linux.ibm.com>
Date: Thu,  6 Nov 2025 17:11:11 +0100
From: Claudio Imbrenda <imbrenda@...ux.ibm.com>
To: kvm@...r.kernel.org
Cc: linux-kernel@...r.kernel.org, linux-s390@...r.kernel.org,
        borntraeger@...ibm.com, frankja@...ux.ibm.com, nsg@...ux.ibm.com,
        nrb@...ux.ibm.com, seiden@...ux.ibm.com, schlameuss@...ux.ibm.com,
        hca@...ux.ibm.com, svens@...ux.ibm.com, agordeev@...ux.ibm.com,
        gor@...ux.ibm.com, david@...hat.com, gerald.schaefer@...ux.ibm.com
Subject: [PATCH v3 17/23] KVM: s390: Stop using CONFIG_PGSTE

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@...ux.ibm.com>
Reviewed-by: Steffen Eiden <seiden@...ux.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