diff mbox series

[gmem,3/6] KVM: x86: Pass private/shared fault indicator to gmem_validate_fault

Message ID 20240329212444.395559-4-michael.roth@amd.com (mailing list archive)
State New, archived
Headers show
Series gmem fix-ups and interfaces for populating gmem pages | expand

Commit Message

Michael Roth March 29, 2024, 9:24 p.m. UTC 
TDX has use for a similar interface, but in that case it needs an
indication of whether or not the fault was private. Go ahead and plumb
that information through.

Link: https://lore.kernel.org/lkml/35bc4582-8a03-413b-be0e-4cc419715772@linux.intel.com/
Signed-off-by: Michael Roth <michael.roth@amd.com>
---
 arch/x86/include/asm/kvm_host.h | 3 ++-
 arch/x86/kvm/mmu/mmu.c          | 3 ++-
 2 files changed, 4 insertions(+), 2 deletions(-)
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Patch

diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index 16fff18ef2e5..90dc0ae9311a 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -1815,7 +1815,8 @@  struct kvm_x86_ops {
 	void *(*alloc_apic_backing_page)(struct kvm_vcpu *vcpu);
 	int (*gmem_prepare)(struct kvm *kvm, kvm_pfn_t pfn, gfn_t gfn, int max_order);
 	void (*gmem_invalidate)(kvm_pfn_t start, kvm_pfn_t end);
-	int (*gmem_validate_fault)(struct kvm *kvm, kvm_pfn_t pfn, gfn_t gfn, u8 *max_level);
+	int (*gmem_validate_fault)(struct kvm *kvm, kvm_pfn_t pfn, gfn_t gfn, bool is_private,
+				   u8 *max_level);
 };
 
 struct kvm_x86_nested_ops {
diff --git a/arch/x86/kvm/mmu/mmu.c b/arch/x86/kvm/mmu/mmu.c
index 8d7ee18fe524..0049d49aa913 100644
--- a/arch/x86/kvm/mmu/mmu.c
+++ b/arch/x86/kvm/mmu/mmu.c
@@ -4340,7 +4340,8 @@  static int kvm_faultin_pfn_private(struct kvm_vcpu *vcpu,
 	fault->map_writable = !(fault->slot->flags & KVM_MEM_READONLY);
 
 	r = static_call(kvm_x86_gmem_validate_fault)(vcpu->kvm, fault->pfn,
-						     fault->gfn, &fault->max_level);
+						     fault->gfn, fault->is_private,
+						     &fault->max_level);
 	if (r) {
 		kvm_release_pfn_clean(fault->pfn);
 		return r;