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| author | Claudio Imbrenda <imbrenda@linux.ibm.com> | 2025-03-12 19:49:12 +0100 |
|---|---|---|
| committer | Claudio Imbrenda <imbrenda@linux.ibm.com> | 2025-03-14 15:24:19 +0100 |
| commit | d8dfda5af0be6e48178b6f4b46c6af30b06335b2 (patch) | |
| tree | afbb2f7efaac2f2770faaf37a8c0ab701a1e3d70 /arch/s390/include/asm/uv.h | |
| parent | 695caca9345a160ecd9645abab8e70cfe849e9ff (diff) | |
| download | linux-next-d8dfda5af0be6e48178b6f4b46c6af30b06335b2.tar.gz linux-next-d8dfda5af0be6e48178b6f4b46c6af30b06335b2.zip | |
KVM: s390: pv: fix race when making a page secure
Holding the pte lock for the page that is being converted to secure is
needed to avoid races. A previous commit removed the locking, which
caused issues. Fix by locking the pte again.
Fixes: 5cbe24350b7d ("KVM: s390: move pv gmap functions into kvm")
Reported-by: David Hildenbrand <david@redhat.com>
Tested-by: David Hildenbrand <david@redhat.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
[david@redhat.com: replace use of get_locked_pte() with folio_walk_start()]
Link: https://lore.kernel.org/r/20250312184912.269414-2-imbrenda@linux.ibm.com
Signed-off-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Message-ID: <20250312184912.269414-2-imbrenda@linux.ibm.com>
Diffstat (limited to 'arch/s390/include/asm/uv.h')
| -rw-r--r-- | arch/s390/include/asm/uv.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/s390/include/asm/uv.h b/arch/s390/include/asm/uv.h index b11f5b6d0bd1..46fb0ef6f984 100644 --- a/arch/s390/include/asm/uv.h +++ b/arch/s390/include/asm/uv.h @@ -631,7 +631,7 @@ int uv_pin_shared(unsigned long paddr); 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_folio_secure(struct folio *folio, struct uv_cb_header *uvcb); +int make_hva_secure(struct mm_struct *mm, unsigned long hva, struct uv_cb_header *uvcb); int uv_convert_from_secure(unsigned long paddr); int uv_convert_from_secure_folio(struct folio *folio); |