linux-kernel - [RFC PATCH v6 07/32] KVM: x86: apic_test

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Message-ID: <20250514071803.209166-8-Neeraj.Upadhyay@amd.com>
Date: Wed, 14 May 2025 12:47:38 +0530
From: Neeraj Upadhyay <Neeraj.Upadhyay@....com>
To: <linux-kernel@...r.kernel.org>
CC: <bp@...en8.de>, <tglx@...utronix.de>, <mingo@...hat.com>,
	<dave.hansen@...ux.intel.com>, <Thomas.Lendacky@....com>, <nikunj@....com>,
	<Santosh.Shukla@....com>, <Vasant.Hegde@....com>,
	<Suravee.Suthikulpanit@....com>, <David.Kaplan@....com>, <x86@...nel.org>,
	<hpa@...or.com>, <peterz@...radead.org>, <seanjc@...gle.com>,
	<pbonzini@...hat.com>, <kvm@...r.kernel.org>,
	<kirill.shutemov@...ux.intel.com>, <huibo.wang@....com>,
	<naveen.rao@....com>, <francescolavra.fl@...il.com>, <tiala@...rosoft.com>
Subject: [RFC PATCH v6 07/32] KVM: x86: apic_test_vector() to common code

Move apic_test_vector() to apic.h in order to reuse it in the
Secure AVIC guest APIC driver in later patches to test vector
state in the APIC backing page.

No function changes intended.

Signed-off-by: Neeraj Upadhyay <Neeraj.Upadhyay@....com>
---
Changes since v5:

 - New change.

 arch/x86/include/asm/apic.h | 5 +++++
 arch/x86/kvm/lapic.c        | 5 -----
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/arch/x86/include/asm/apic.h b/arch/x86/include/asm/apic.h
index ef5b1be5eeab..d7377615d93a 100644
--- a/arch/x86/include/asm/apic.h
+++ b/arch/x86/include/asm/apic.h
@@ -557,6 +557,11 @@ static inline void apic_set_vector(int vec, void *bitmap)
 	set_bit(APIC_VECTOR_TO_BIT_NUMBER(vec), (bitmap) + APIC_VECTOR_TO_REG_OFFSET(vec));
 }
 
+static inline int apic_test_vector(int vec, void *bitmap)
+{
+	return test_bit(APIC_VECTOR_TO_BIT_NUMBER(vec), (bitmap) + APIC_VECTOR_TO_REG_OFFSET(vec));
+}
+
 /*
  * Warm reset vector position:
  */
diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c
index 25fd4ad72554..8ecc3e960121 100644
--- a/arch/x86/kvm/lapic.c
+++ b/arch/x86/kvm/lapic.c
@@ -96,11 +96,6 @@ static __always_inline void kvm_lapic_set_reg64(struct kvm_lapic *apic,
 	apic_set_reg64(apic->regs, reg, val);
 }
 
-static inline int apic_test_vector(int vec, void *bitmap)
-{
-	return test_bit(VEC_POS(vec), (bitmap) + REG_POS(vec));
-}
-
 bool kvm_apic_pending_eoi(struct kvm_vcpu *vcpu, int vector)
 {
 	struct kvm_lapic *apic = vcpu->arch.apic;
-- 
2.34.1