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| author | Claudio Imbrenda <imbrenda@linux.ibm.com> | 2026-02-04 18:02:36 +0300 |
|---|---|---|
| committer | Claudio Imbrenda <imbrenda@linux.ibm.com> | 2026-02-04 19:00:08 +0300 |
| commit | 3ddee7e651661a2c3cbe12bb36215a64295f8b01 (patch) | |
| tree | 5ce87eb344cf9bad44269b13453b02875fee5071 | |
| parent | cf3ce3d69d56bd3ef2bc5f6b500ebc5181637161 (diff) | |
| download | linux-3ddee7e651661a2c3cbe12bb36215a64295f8b01.tar.xz | |
KVM: s390: Export two functions
Export __make_folio_secure() and s390_wiggle_split_folio(), as they will
be needed to be used by KVM.
Acked-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
| -rw-r--r-- | arch/s390/include/asm/uv.h | 2 | ||||
| -rw-r--r-- | arch/s390/kernel/uv.c | 6 |
2 files changed, 6 insertions, 2 deletions
diff --git a/arch/s390/include/asm/uv.h b/arch/s390/include/asm/uv.h index 8018549a1ad2..0744874ca6df 100644 --- a/arch/s390/include/asm/uv.h +++ b/arch/s390/include/asm/uv.h @@ -632,6 +632,8 @@ int uv_destroy_folio(struct folio *folio); int uv_destroy_pte(pte_t pte); int uv_convert_from_secure_pte(pte_t pte); int make_hva_secure(struct mm_struct *mm, unsigned long hva, struct uv_cb_header *uvcb); +int s390_wiggle_split_folio(struct mm_struct *mm, struct folio *folio); +int __make_folio_secure(struct folio *folio, struct uv_cb_header *uvcb); int uv_convert_from_secure(unsigned long paddr); int uv_convert_from_secure_folio(struct folio *folio); diff --git a/arch/s390/kernel/uv.c b/arch/s390/kernel/uv.c index ca0849008c0d..cb4e8089fbca 100644 --- a/arch/s390/kernel/uv.c +++ b/arch/s390/kernel/uv.c @@ -281,7 +281,7 @@ static int expected_folio_refs(struct folio *folio) * (it's the same logic as split_folio()), and the folio must be * locked. */ -static int __make_folio_secure(struct folio *folio, struct uv_cb_header *uvcb) +int __make_folio_secure(struct folio *folio, struct uv_cb_header *uvcb) { int expected, cc = 0; @@ -311,6 +311,7 @@ static int __make_folio_secure(struct folio *folio, struct uv_cb_header *uvcb) return -EAGAIN; return uvcb->rc == 0x10a ? -ENXIO : -EINVAL; } +EXPORT_SYMBOL(__make_folio_secure); static int make_folio_secure(struct mm_struct *mm, struct folio *folio, struct uv_cb_header *uvcb) { @@ -339,7 +340,7 @@ static int make_folio_secure(struct mm_struct *mm, struct folio *folio, struct u * but another attempt can be made; * -EINVAL in case of other folio splitting errors. See split_folio(). */ -static int s390_wiggle_split_folio(struct mm_struct *mm, struct folio *folio) +int s390_wiggle_split_folio(struct mm_struct *mm, struct folio *folio) { int rc, tried_splits; @@ -411,6 +412,7 @@ static int s390_wiggle_split_folio(struct mm_struct *mm, struct folio *folio) } return -EAGAIN; } +EXPORT_SYMBOL_GPL(s390_wiggle_split_folio); int make_hva_secure(struct mm_struct *mm, unsigned long hva, struct uv_cb_header *uvcb) { |