diff options
| author | Mark Brown <broonie@kernel.org> | 2018-06-01 11:40:46 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2018-06-01 11:40:46 +0100 |
| commit | 1e82572e5f806782cc1bf06e6d22905c28b0a9f5 (patch) | |
| tree | c428a640fca2ee5c6bfe259482b941f5e0ece927 /arch/arm/include | |
| parent | 29e8549d35499289ce6211a553f956a2ab9a3905 (diff) | |
| parent | 86a04ba0955e3c806ed301cf178f1e130f1cb785 (diff) | |
Merge branch 'linux-linaro-lsk-v4.9' into linux-linaro-lsk-v4.9-rtlsk-v4.9-18.05-rt
Diffstat (limited to 'arch/arm/include')
| -rw-r--r-- | arch/arm/include/asm/assembler.h | 10 | ||||
| -rw-r--r-- | arch/arm/include/asm/kvm_mmu.h | 16 | ||||
| -rw-r--r-- | arch/arm/include/asm/vdso.h | 2 |
3 files changed, 26 insertions, 2 deletions
diff --git a/arch/arm/include/asm/assembler.h b/arch/arm/include/asm/assembler.h index 12f99fd2e3b2..3aed4492c9a7 100644 --- a/arch/arm/include/asm/assembler.h +++ b/arch/arm/include/asm/assembler.h @@ -534,4 +534,14 @@ THUMB( orr \reg , \reg , #PSR_T_BIT ) #endif .endm +#ifdef CONFIG_KPROBES +#define _ASM_NOKPROBE(entry) \ + .pushsection "_kprobe_blacklist", "aw" ; \ + .balign 4 ; \ + .long entry; \ + .popsection +#else +#define _ASM_NOKPROBE(entry) +#endif + #endif /* __ASM_ASSEMBLER_H__ */ diff --git a/arch/arm/include/asm/kvm_mmu.h b/arch/arm/include/asm/kvm_mmu.h index d10e36235438..7f66b1b3aca1 100644 --- a/arch/arm/include/asm/kvm_mmu.h +++ b/arch/arm/include/asm/kvm_mmu.h @@ -223,6 +223,22 @@ static inline unsigned int kvm_get_vmid_bits(void) return 8; } +/* + * We are not in the kvm->srcu critical section most of the time, so we take + * the SRCU read lock here. Since we copy the data from the user page, we + * can immediately drop the lock again. + */ +static inline int kvm_read_guest_lock(struct kvm *kvm, + gpa_t gpa, void *data, unsigned long len) +{ + int srcu_idx = srcu_read_lock(&kvm->srcu); + int ret = kvm_read_guest(kvm, gpa, data, len); + + srcu_read_unlock(&kvm->srcu, srcu_idx); + + return ret; +} + static inline void *kvm_get_hyp_vector(void) { return kvm_ksym_ref(__kvm_hyp_vector); diff --git a/arch/arm/include/asm/vdso.h b/arch/arm/include/asm/vdso.h index d0295f1dd1a3..ff65b6d96c7e 100644 --- a/arch/arm/include/asm/vdso.h +++ b/arch/arm/include/asm/vdso.h @@ -11,8 +11,6 @@ struct mm_struct; void arm_install_vdso(struct mm_struct *mm, unsigned long addr); -extern char vdso_start, vdso_end; - extern unsigned int vdso_total_pages; #else /* CONFIG_VDSO */ |