@@ -76,6 +76,7 @@ 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
@@ -228,4 +228,6 @@ int kvm_perf_teardown(void);
u64 kvm_arm_timer_get_reg(struct kvm_vcpu *, u64 regid);
int kvm_arm_timer_set_reg(struct kvm_vcpu *, u64 regid, u64 value);
+void kvm_tlb_flush_vmid(struct kvm *kvm);
+
#endif /* __ARM_KVM_HOST_H__ */
@@ -45,8 +45,12 @@ __kvm_hyp_code_start:
*
* As v7 does not support flushing per IPA, just nuke the whole TLB
* instead, ignoring the ipa value.
+ *
+ * void __kvm_tlb_flush_vm(struct kvm *kvm) - alias on ARMv7 for global VM TLB
+ * flush with no address parameters.
*/
ENTRY(__kvm_tlb_flush_vmid_ipa)
+ENTRY(__kvm_tlb_flush_vmid)
push {r2, r3}
dsb ishst
@@ -65,6 +69,7 @@ ENTRY(__kvm_tlb_flush_vmid_ipa)
pop {r2, r3}
bx lr
ENDPROC(__kvm_tlb_flush_vmid_ipa)
+ENDPROC(__kvm_tlb_flush_vmid)
/********************************************************************
* Flush TLBs and instruction caches of all CPUs inside the inner-shareable
@@ -56,6 +56,16 @@ static void kvm_tlb_flush_vmid_ipa(struct kvm *kvm, phys_addr_t ipa)
kvm_call_hyp(__kvm_tlb_flush_vmid_ipa, kvm, ipa);
}
+/* Function reuses __kvm_tlb_flush_vmid_ipa() HYP interface without additional
+ * address argument to flush entire VM TLBs.
+ */
+void kvm_flush_remote_tlbs(struct kvm *kvm)
+{
+ if (kvm)
+ kvm_call_hyp(__kvm_tlb_flush_vmid, kvm);
+}
+
+
static int mmu_topup_memory_cache(struct kvm_mmu_memory_cache *cache,
int min, int max)
{
Patch adds HYP interface for global VM TLB invalidation without address parameter. - Added ARM version of kvm_flush_remote_tlbs() Signed-off-by: Mario Smarduch <m.smarduch@samsung.com> --- arch/arm/include/asm/kvm_asm.h | 1 + arch/arm/include/asm/kvm_host.h | 2 ++ arch/arm/kvm/interrupts.S | 5 +++++ arch/arm/kvm/mmu.c | 10 ++++++++++ 4 files changed, 18 insertions(+)