linux-kernel - [PATCH v2 2/2] KVM: x86: Remove VT-d mention in posted interrupt tracepoint

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Date: Thu, 18 Apr 2024 02:18:23 +0000
From: Alejandro Jimenez <alejandro.j.jimenez@...cle.com>
To: kvm@...r.kernel.org, seanjc@...gle.com
Cc: pbonzini@...hat.com, linux-kernel@...r.kernel.org,
        joao.m.martins@...cle.com, boris.ostrovsky@...cle.com,
        suravee.suthikulpanit@....com, mlevitsk@...hat.com,
        alejandro.j.jimenez@...cle.com
Subject: [PATCH v2 2/2] KVM: x86: Remove VT-d mention in posted interrupt tracepoint

The kvm_pi_irte_update tracepoint is called from both SVM and VMX vendor
code, and while the "posted interrupt" naming is also adopted by SVM in
several places, VT-d specifically refers to Intel's "Virtualization
Technology for Directed I/O".

Signed-off-by: Alejandro Jimenez <alejandro.j.jimenez@...cle.com>
---
 arch/x86/kvm/trace.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/x86/kvm/trace.h b/arch/x86/kvm/trace.h
index c6b4b1728006..9d0b02ef307e 100644
--- a/arch/x86/kvm/trace.h
+++ b/arch/x86/kvm/trace.h
@@ -1074,7 +1074,7 @@ TRACE_EVENT(kvm_smm_transition,
 );
 
 /*
- * Tracepoint for VT-d posted-interrupts.
+ * Tracepoint for VT-d posted-interrupts and AMD-Vi Guest Virtual APIC.
  */
 TRACE_EVENT(kvm_pi_irte_update,
 	TP_PROTO(unsigned int host_irq, unsigned int vcpu_id,
@@ -1100,7 +1100,7 @@ TRACE_EVENT(kvm_pi_irte_update,
 		__entry->set		= set;
 	),
 
-	TP_printk("VT-d PI is %s for irq %u, vcpu %u, gsi: 0x%x, "
+	TP_printk("PI is %s for irq %u, vcpu %u, gsi: 0x%x, "
 		  "gvec: 0x%x, pi_desc_addr: 0x%llx",
 		  __entry->set ? "enabled and being updated" : "disabled",
 		  __entry->host_irq,
-- 
2.39.3