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| author | Heiko Carstens <hca@linux.ibm.com> | 2026-04-21 08:52:44 +0300 |
|---|---|---|
| committer | Alexander Gordeev <agordeev@linux.ibm.com> | 2026-04-28 15:45:03 +0300 |
| commit | b95e0e792822bad8fc9eb33ea3a90005e29e75e9 (patch) | |
| tree | 477afa415a5b339a8bd0988641f07a770d0a6dca | |
| parent | 8587af9cff43aa114ee69b401b8ac3e2c5aea4d3 (diff) | |
| download | linux-b95e0e792822bad8fc9eb33ea3a90005e29e75e9.tar.xz | |
s390/mm: Fix phys_to_folio() usage in do_secure_storage_access()
In case of a Secure-Storage-Access exception the effective aka virtual
address which caused the exception is contained within the TEID.
do_secure_storage_access() incorrectly uses phys_to_folio() instead of
virt_to_folio() to translate the virtual address to the corresponding
folio.
Fix this by using virt_to_folio() instead of phys_to_folio().
Fixes: 084ea4d611a3 ("s390/mm: add (non)secure page access exceptions handlers")
Reviewed-by: Christian Borntraeger <borntraeger@linux.ibm.com>
Reviewed-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
| -rw-r--r-- | arch/s390/mm/fault.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/s390/mm/fault.c b/arch/s390/mm/fault.c index 191cc53caead..028aeb9c48d6 100644 --- a/arch/s390/mm/fault.c +++ b/arch/s390/mm/fault.c @@ -438,7 +438,7 @@ void do_secure_storage_access(struct pt_regs *regs) panic("Unexpected PGM 0x3d with TEID bit 61=0"); } if (is_kernel_fault(regs)) { - folio = phys_to_folio(addr); + folio = virt_to_folio((void *)addr); if (unlikely(!folio_try_get(folio))) return; rc = uv_convert_from_secure(folio_to_phys(folio)); |