From: Lan Tianyu <Tianyu.Lan@microsoft.com>
Date: Thu, 6 Dec 2018 13:21:04 +0000 (+0800)
Subject: KVM: Add tlb_remote_flush_with_range callback in kvm_x86_ops
X-Git-Tag: v5.4-rc1~1984^2~17
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=a49b96352e68368c2e6784d13b0b4b7b8d830922;p=platform%2Fkernel%2Flinux-rpi.git

KVM: Add tlb_remote_flush_with_range callback in kvm_x86_ops

Add flush range call back in the kvm_x86_ops and platform can use it
to register its associated function. The parameter "kvm_tlb_range"
accepts a single range and flush list which contains a list of ranges.

Signed-off-by: Lan Tianyu <Tianyu.Lan@microsoft.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---

diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index ffb8a853e0d4..3639077d285b 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -439,6 +439,11 @@ struct kvm_mmu {
 	u64 pdptrs[4]; /* pae */
 };
 
+struct kvm_tlb_range {
+	u64 start_gfn;
+	u64 pages;
+};
+
 enum pmc_type {
 	KVM_PMC_GP = 0,
 	KVM_PMC_FIXED,
@@ -1041,6 +1046,8 @@ struct kvm_x86_ops {
 
 	void (*tlb_flush)(struct kvm_vcpu *vcpu, bool invalidate_gpa);
 	int  (*tlb_remote_flush)(struct kvm *kvm);
+	int  (*tlb_remote_flush_with_range)(struct kvm *kvm,
+			struct kvm_tlb_range *range);
 
 	/*
 	 * Flush any TLB entries associated with the given GVA.