release/4.8.18/KVM-MIPS-Flush-KVM-entry-code-from-icache-globally.patch

From bbdaa2814f24bc488b64e416f41886b7afbeec98 Mon Sep 17 00:00:00 2001
From: James Hogan <james.hogan@imgtec.com>
Date: Tue, 3 Jan 2017 17:43:01 +0000
Subject: [PATCH] KVM: MIPS: Flush KVM entry code from icache globally
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commit 32eb12a6c11034867401d56b012e3c15d5f8141e upstream.

Flush the KVM entry code from the icache on all CPUs, not just the one
that built the entry code.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: "Radim Krčmář" <rkrcmar@redhat.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: linux-mips@linux-mips.org
Cc: kvm@vger.kernel.org
Cc: <stable@vger.kernel.org> # 3.16.x-
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>

diff --git a/arch/mips/kvm/mips.c b/arch/mips/kvm/mips.c
index a6ea084b4d9d..5d14ce519a82 100644
--- a/arch/mips/kvm/mips.c
+++ b/arch/mips/kvm/mips.c
@@ -349,8 +349,8 @@ struct kvm_vcpu *kvm_arch_vcpu_create(struct kvm *kvm, unsigned int id)
 	dump_handler("kvm_exit", gebase + 0x2000, vcpu->arch.vcpu_run);
 
 	/* Invalidate the icache for these ranges */
-	local_flush_icache_range((unsigned long)gebase,
-				(unsigned long)gebase + ALIGN(size, PAGE_SIZE));
+	flush_icache_range((unsigned long)gebase,
+			   (unsigned long)gebase + ALIGN(size, PAGE_SIZE));
 
 	/*
 	 * Allocate comm page for guest kernel, a TLB will be reserved for
-- 
2.10.1