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| author | Paolo Bonzini <pbonzini@redhat.com> | 2017-02-09 16:01:23 +0100 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2017-02-09 16:01:23 +0100 |
| commit | 2e751dfb5ffd20d1a31837dbc9718741df69bffe (patch) | |
| tree | 8b7e0e47cf0ef4efda0f1090f0ccbbeb17e5a085 /arch/arm/kernel/smp_tlb.c | |
| parent | a0e136d436ded817c0aade72efdefa56a00b4e5e (diff) | |
| parent | 7b6b46311a8562fb3a9e035ed6ffab6d49c28886 (diff) | |
Merge tag 'kvmarm-for-4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD
kvmarm updates for 4.11
- GICv3 save restore
- Cache flushing fixes
- MSI injection fix for GICv3 ITS
- Physical timer emulation support
Diffstat (limited to 'arch/arm/kernel/smp_tlb.c')
| -rw-r--r-- | arch/arm/kernel/smp_tlb.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/arm/kernel/smp_tlb.c b/arch/arm/kernel/smp_tlb.c index 22313cb53362..9af0701f7094 100644 --- a/arch/arm/kernel/smp_tlb.c +++ b/arch/arm/kernel/smp_tlb.c @@ -9,6 +9,7 @@ */ #include <linux/preempt.h> #include <linux/smp.h> +#include <linux/uaccess.h> #include <asm/smp_plat.h> #include <asm/tlbflush.h> @@ -40,8 +41,11 @@ static inline void ipi_flush_tlb_mm(void *arg) static inline void ipi_flush_tlb_page(void *arg) { struct tlb_args *ta = (struct tlb_args *)arg; + unsigned int __ua_flags = uaccess_save_and_enable(); local_flush_tlb_page(ta->ta_vma, ta->ta_start); + + uaccess_restore(__ua_flags); } static inline void ipi_flush_tlb_kernel_page(void *arg) @@ -54,8 +58,11 @@ static inline void ipi_flush_tlb_kernel_page(void *arg) static inline void ipi_flush_tlb_range(void *arg) { struct tlb_args *ta = (struct tlb_args *)arg; + unsigned int __ua_flags = uaccess_save_and_enable(); local_flush_tlb_range(ta->ta_vma, ta->ta_start, ta->ta_end); + + uaccess_restore(__ua_flags); } static inline void ipi_flush_tlb_kernel_range(void *arg) |