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KVM: Add trace_kvm_vm_set_mem_attributes()

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Add a tracing function that, for a guest memory range, displays
the start and end addresses plus the per-page attributes being set.

Signed-off-by: Liam Merwick <liam.merwick@oracle.com>
Reviewed-by: Pankaj Gupta <pankaj.gupta@amd.com>
Link: https://lore.kernel.org/r/20250609091121.2497429-3-liam.merwick@oracle.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
This commit is contained in:
Liam Merwick 2025-06-09 09:11:20 +00:00 • committed by Sean Christopherson
commit 741e595f02
2 changed files with 29 additions and 0 deletions
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virt/kvm/kvm_main.c
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@ -2558,6 +2558,8 @@ static int kvm_vm_set_mem_attributes(struct kvm *kvm, gfn_t start, gfn_t end,
entry = attributes ? xa_mk_value(attributes) : NULL;
trace_kvm_vm_set_mem_attributes(start, end, attributes);
mutex_lock(&kvm->slots_lock);
/* Nothing to do if the entire range as the desired attributes. */