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authorMario Smarduch <m.smarduch@samsung.com>2015-01-15 15:58:55 -0800
committerChristoffer Dall <christoffer.dall@linaro.org>2015-01-16 14:40:14 +0100
commit72fc36b600f73e37557576af80c58836dcf389f9 (patch)
treece72702b0e0f5acdf3d21a242dc358f4fb09dd91 /arch/arm/kvm
parente108ff2f8033a417ee3e517d9f8730f665646076 (diff)
KVM: arm: Add ARMv7 API to flush TLBs
This patch adds ARMv7 architecture TLB Flush function. Acked-by: Marc Zyngier <marc.zyngier@arm.com> Acked-by: Christoffer Dall <christoffer.dall@linaro.org> Signed-off-by: Mario Smarduch <m.smarduch@samsung.com>
Diffstat (limited to 'arch/arm/kvm')
-rw-r--r--arch/arm/kvm/Kconfig1
-rw-r--r--arch/arm/kvm/interrupts.S11
2 files changed, 12 insertions, 0 deletions
diff --git a/arch/arm/kvm/Kconfig b/arch/arm/kvm/Kconfig
index 466bd299b1a8..f27f3360e52b 100644
--- a/arch/arm/kvm/Kconfig
+++ b/arch/arm/kvm/Kconfig
@@ -21,6 +21,7 @@ config KVM
select PREEMPT_NOTIFIERS
select ANON_INODES
select HAVE_KVM_CPU_RELAX_INTERCEPT
+ select HAVE_KVM_ARCH_TLB_FLUSH_ALL
select KVM_MMIO
select KVM_ARM_HOST
depends on ARM_VIRT_EXT && ARM_LPAE
diff --git a/arch/arm/kvm/interrupts.S b/arch/arm/kvm/interrupts.S
index 01dcb0e752d9..79caf79b304a 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