| Message ID | 1412908447-28247-3-git-send-email-m.smarduch@samsung.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Thu, Oct 09, 2014 at 07:34:06PM -0700, Mario Smarduch wrote: > This patch adds HYP VM TLB FLush function. > > Signed-off-by: Mario Smarduch <m.smarduch@samsung.com> > --- > arch/arm64/kvm/hyp.S | 22 ++++++++++++++++++++++ > 1 file changed, 22 insertions(+) > > diff --git a/arch/arm64/kvm/hyp.S b/arch/arm64/kvm/hyp.S > index b0d1512..117a91c 100644 > --- a/arch/arm64/kvm/hyp.S > +++ b/arch/arm64/kvm/hyp.S > @@ -645,6 +645,28 @@ ENTRY(__kvm_tlb_flush_vmid_ipa) > ret > ENDPROC(__kvm_tlb_flush_vmid_ipa) > > +/** > + * void __kvm_tlb_flush_vmid(struct kvm *kvm) - Flush per-VMID TLBs > + * @struc kvm *kvm - pointer to kvm structure struct > + * > + * Invalidates all Stage 1 and 2 TLB entries for current VMID. > + */ > +ENTRY(__kvm_tlb_flush_vmid) > + dsb ishst > + > + kern_hyp_va x0 > + ldr x2, [x0, #KVM_VTTBR] > + msr vttbr_el2, x2 > + isb > + > + tlbi vmalls12e1is > + dsb ish > + isb > + > + msr vttbr_el2, xzr > + ret > +ENDPROC(__kvm_tlb_flush_vmid) > + > ENTRY(__kvm_flush_vm_context) > dsb ishst > tlbi alle1is > -- > 1.9.1 > Looks good to me: Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org>
On 11/07/2014 12:20 PM, Christoffer Dall wrote: > On Thu, Oct 09, 2014 at 07:34:06PM -0700, Mario Smarduch wrote: >> This patch adds HYP VM TLB FLush function. >> >> Signed-off-by: Mario Smarduch <m.smarduch@samsung.com> >> --- >> arch/arm64/kvm/hyp.S | 22 ++++++++++++++++++++++ >> 1 file changed, 22 insertions(+) >> >> diff --git a/arch/arm64/kvm/hyp.S b/arch/arm64/kvm/hyp.S >> index b0d1512..117a91c 100644 >> --- a/arch/arm64/kvm/hyp.S >> +++ b/arch/arm64/kvm/hyp.S >> @@ -645,6 +645,28 @@ ENTRY(__kvm_tlb_flush_vmid_ipa) >> ret >> ENDPROC(__kvm_tlb_flush_vmid_ipa) >> >> +/** >> + * void __kvm_tlb_flush_vmid(struct kvm *kvm) - Flush per-VMID TLBs >> + * @struc kvm *kvm - pointer to kvm structure > > struct Got it. > >> + * >> + * Invalidates all Stage 1 and 2 TLB entries for current VMID. >> + */ >> +ENTRY(__kvm_tlb_flush_vmid) >> + dsb ishst >> + >> + kern_hyp_va x0 >> + ldr x2, [x0, #KVM_VTTBR] >> + msr vttbr_el2, x2 >> + isb >> + >> + tlbi vmalls12e1is >> + dsb ish >> + isb >> + >> + msr vttbr_el2, xzr >> + ret >> +ENDPROC(__kvm_tlb_flush_vmid) >> + >> ENTRY(__kvm_flush_vm_context) >> dsb ishst >> tlbi alle1is >> -- >> 1.9.1 >> > Looks good to me: > > Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org> >
diff --git a/arch/arm64/kvm/hyp.S b/arch/arm64/kvm/hyp.S index b0d1512..117a91c 100644 --- a/arch/arm64/kvm/hyp.S +++ b/arch/arm64/kvm/hyp.S @@ -645,6 +645,28 @@ ENTRY(__kvm_tlb_flush_vmid_ipa) ret ENDPROC(__kvm_tlb_flush_vmid_ipa) +/** + * void __kvm_tlb_flush_vmid(struct kvm *kvm) - Flush per-VMID TLBs + * @struc kvm *kvm - pointer to kvm structure + * + * Invalidates all Stage 1 and 2 TLB entries for current VMID. + */ +ENTRY(__kvm_tlb_flush_vmid) + dsb ishst + + kern_hyp_va x0 + ldr x2, [x0, #KVM_VTTBR] + msr vttbr_el2, x2 + isb + + tlbi vmalls12e1is + dsb ish + isb + + msr vttbr_el2, xzr + ret +ENDPROC(__kvm_tlb_flush_vmid) + ENTRY(__kvm_flush_vm_context) dsb ishst tlbi alle1is
This patch adds HYP VM TLB FLush function. Signed-off-by: Mario Smarduch <m.smarduch@samsung.com> --- arch/arm64/kvm/hyp.S | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+)