On Thu, Nov 06, 2014 at 04:40:45PM -0800, Mario Smarduch wrote: > This patch adds ARMv7 architecture TLB Flush function. > > Acked-by: Christoffer Dall <christoffer.dall at linaro.org> > Signed-off-by: Mario Smarduch <m.smarduch@xxxxxxxxxxx> > --- > arch/arm/include/asm/kvm_asm.h | 1 + > arch/arm/include/asm/kvm_host.h | 12 ++++++++++++ > arch/arm/kvm/Kconfig | 1 + > arch/arm/kvm/interrupts.S | 11 +++++++++++ > 4 files changed, 25 insertions(+) > > diff --git a/arch/arm/include/asm/kvm_asm.h b/arch/arm/include/asm/kvm_asm.h > index 3a67bec..25410b2 100644 > --- a/arch/arm/include/asm/kvm_asm.h > +++ b/arch/arm/include/asm/kvm_asm.h > @@ -96,6 +96,7 @@ extern char __kvm_hyp_code_end[]; > > extern void __kvm_flush_vm_context(void); > extern void __kvm_tlb_flush_vmid_ipa(struct kvm *kvm, phys_addr_t ipa); > +extern void __kvm_tlb_flush_vmid(struct kvm *kvm); > > extern int __kvm_vcpu_run(struct kvm_vcpu *vcpu); > #endif > diff --git a/arch/arm/include/asm/kvm_host.h b/arch/arm/include/asm/kvm_host.h > index 6dfb404..fad598c 100644 > --- a/arch/arm/include/asm/kvm_host.h > +++ b/arch/arm/include/asm/kvm_host.h > @@ -220,6 +220,18 @@ static inline void __cpu_init_hyp_mode(phys_addr_t boot_pgd_ptr, > kvm_call_hyp((void*)hyp_stack_ptr, vector_ptr, pgd_ptr); > } > > +/** > + * kvm_arch_flush_remote_tlbs() - flush all VM TLB entries this name is not matching the function > + * @kvm: pointer to kvm structure. > + * > + * Interface to HYP function to flush all VM TLB entries without address > + * parameter. > + */ > +static inline void kvm_flush_remote_tlbs(struct kvm *kvm) > +{ > + kvm_call_hyp(__kvm_tlb_flush_vmid, kvm); > +} > + > static inline int kvm_arch_dev_ioctl_check_extension(long ext) > { > return 0; > diff --git a/arch/arm/kvm/Kconfig b/arch/arm/kvm/Kconfig > index 466bd29..a099df4 100644 > --- a/arch/arm/kvm/Kconfig > +++ b/arch/arm/kvm/Kconfig > @@ -23,6 +23,7 @@ config KVM > select HAVE_KVM_CPU_RELAX_INTERCEPT > select KVM_MMIO > select KVM_ARM_HOST > + select HAVE_KVM_ARCH_TLB_FLUSH_ALL > depends on ARM_VIRT_EXT && ARM_LPAE > ---help--- > Support hosting virtualized guest machines. You will also > diff --git a/arch/arm/kvm/interrupts.S b/arch/arm/kvm/interrupts.S > index 01dcb0e..79caf79 100644 > --- a/arch/arm/kvm/interrupts.S > +++ b/arch/arm/kvm/interrupts.S > @@ -66,6 +66,17 @@ ENTRY(__kvm_tlb_flush_vmid_ipa) > bx lr > ENDPROC(__kvm_tlb_flush_vmid_ipa) > > +/** > + * void __kvm_tlb_flush_vmid(struct kvm *kvm) - Flush per-VMID TLBs > + * > + * Reuses __kvm_tlb_flush_vmid_ipa() for ARMv7, without passing address > + * parameter > + */ > + > +ENTRY(__kvm_tlb_flush_vmid) > + b __kvm_tlb_flush_vmid_ipa > +ENDPROC(__kvm_tlb_flush_vmid) > + > /******************************************************************** > * Flush TLBs and instruction caches of all CPUs inside the inner-shareable > * domain, for all VMIDs > -- > 1.7.9.5 > -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html