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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2014-09-06 16:42:12 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-09-06 16:42:12 -0700 |
| commit | 2b12164b55e76e421c069de2cdf6b04c077983f1 (patch) | |
| tree | c69425aaef9da5ef21d79eb6f0ba51334b64fd00 /arch/s390/include | |
| parent | 56c228546ed866d46cf957674f7ecb39eb2b2b56 (diff) | |
| parent | 02a68d0503fa470abff8852e10b1890df5730a08 (diff) | |
| download | linux-2b12164b55e76e421c069de2cdf6b04c077983f1.tar.bz2 | |
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull kvm fixes from Paolo Bonzini:
"A smattering of bug fixes across most architectures"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
powerpc/kvm/cma: Fix panic introduces by signed shift operation
KVM: s390/mm: Fix guest storage key corruption in ptep_set_access_flags
KVM: s390/mm: Fix storage key corruption during swapping
arm/arm64: KVM: Complete WFI/WFE instructions
ARM/ARM64: KVM: Nuke Hyp-mode tlbs before enabling MMU
KVM: s390/mm: try a cow on read only pages for key ops
KVM: s390: Fix user triggerable bug in dead code
Diffstat (limited to 'arch/s390/include')
| -rw-r--r-- | arch/s390/include/asm/pgtable.h | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/arch/s390/include/asm/pgtable.h b/arch/s390/include/asm/pgtable.h index b76317c1f3eb..5efb2fe186e7 100644 --- a/arch/s390/include/asm/pgtable.h +++ b/arch/s390/include/asm/pgtable.h @@ -1127,7 +1127,7 @@ static inline int ptep_test_and_clear_young(struct vm_area_struct *vma, unsigned long addr, pte_t *ptep) { pgste_t pgste; - pte_t pte; + pte_t pte, oldpte; int young; if (mm_has_pgste(vma->vm_mm)) { @@ -1135,12 +1135,13 @@ static inline int ptep_test_and_clear_young(struct vm_area_struct *vma, pgste = pgste_ipte_notify(vma->vm_mm, ptep, pgste); } - pte = *ptep; + oldpte = pte = *ptep; ptep_flush_direct(vma->vm_mm, addr, ptep); young = pte_young(pte); pte = pte_mkold(pte); if (mm_has_pgste(vma->vm_mm)) { + pgste = pgste_update_all(&oldpte, pgste, vma->vm_mm); pgste = pgste_set_pte(ptep, pgste, pte); pgste_set_unlock(ptep, pgste); } else @@ -1330,6 +1331,7 @@ static inline int ptep_set_access_flags(struct vm_area_struct *vma, ptep_flush_direct(vma->vm_mm, address, ptep); if (mm_has_pgste(vma->vm_mm)) { + pgste_set_key(ptep, pgste, entry, vma->vm_mm); pgste = pgste_set_pte(ptep, pgste, entry); pgste_set_unlock(ptep, pgste); } else |