[PATCH v2 3/7] KVM: PPC: Remove redundant kvm_run from vcpu_arch

From: Tianjia Zhang <tianjia.zhang@linux.alibaba.com>
To: pbonzini@redhat.com, tsbogend@alpha.franken.de,
	paulus@ozlabs.org, mpe@ellerman.id.au, benh@kernel.crashing.org,
	borntraeger@de.ibm.com, frankja@linux.ibm.com, david@redhat.com,
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	sean.j.christopherson@intel.com, vkuznets@redhat.com,
	wanpengli@tencent.com, jmattson@google.com, joro@8bytes.org,
	tglx@linutronix.de, mingo@redhat.com, bp@alien8.de,
	x86@kernel.org, hpa@zytor.com, maz@kernel.org,
	james.morse@arm.com, julien.thierry.kdev@gmail.com,
	suzuki.poulose@arm.com, christoffer.dall@arm.com,
	peterx@redhat.com, thuth@redhat.com
Cc: kvm@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	kvmarm@lists.cs.columbia.edu, linux-mips@vger.kernel.org,
	kvm-ppc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
	linux-s390@vger.kernel.org, linux-kernel@vger.kernel.org,
	tianjia.zhang@linux.alibaba.com
Subject: [PATCH v2 3/7] KVM: PPC: Remove redundant kvm_run from vcpu_arch
Date: Wed, 22 Apr 2020 20:58:06 +0800	[thread overview]
Message-ID: <20200422125810.34847-4-tianjia.zhang@linux.alibaba.com> (raw)
In-Reply-To: <20200422125810.34847-1-tianjia.zhang@linux.alibaba.com>

The 'kvm_run' field already exists in the 'vcpu' structure, which
is the same structure as the 'kvm_run' in the 'vcpu_arch' and
should be deleted.

Signed-off-by: Tianjia Zhang <tianjia.zhang@linux.alibaba.com>
---
 arch/powerpc/include/asm/kvm_host.h | 1 -
 arch/powerpc/kvm/book3s_hv.c        | 6 ++----
 arch/powerpc/kvm/book3s_hv_nested.c | 3 +--
 3 files changed, 3 insertions(+), 7 deletions(-)

diff --git a/arch/powerpc/include/asm/kvm_host.h b/arch/powerpc/include/asm/kvm_host.h
index 1dc63101ffe1..2745ff8faa01 100644
--- a/arch/powerpc/include/asm/kvm_host.h
+++ b/arch/powerpc/include/asm/kvm_host.h
@@ -795,7 +795,6 @@ struct kvm_vcpu_arch {
 	struct mmio_hpte_cache_entry *pgfault_cache;
 
 	struct task_struct *run_task;
-	struct kvm_run *kvm_run;
 
 	spinlock_t vpa_update_lock;
 	struct kvmppc_vpa vpa;
diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c
index 93493f0cbfe8..413ea2dcb10c 100644
--- a/arch/powerpc/kvm/book3s_hv.c
+++ b/arch/powerpc/kvm/book3s_hv.c
@@ -2934,7 +2934,7 @@ static void post_guest_process(struct kvmppc_vcore *vc, bool is_master)
 
 		ret = RESUME_GUEST;
 		if (vcpu->arch.trap)
-			ret = kvmppc_handle_exit_hv(vcpu->arch.kvm_run, vcpu,
+			ret = kvmppc_handle_exit_hv(vcpu->run, vcpu,
 						    vcpu->arch.run_task);
 
 		vcpu->arch.ret = ret;
@@ -3920,7 +3920,6 @@ static int kvmppc_run_vcpu(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu)
 	spin_lock(&vc->lock);
 	vcpu->arch.ceded = 0;
 	vcpu->arch.run_task = current;
-	vcpu->arch.kvm_run = kvm_run;
 	vcpu->arch.stolen_logged = vcore_stolen_time(vc, mftb());
 	vcpu->arch.state = KVMPPC_VCPU_RUNNABLE;
 	vcpu->arch.busy_preempt = TB_NIL;
@@ -3973,7 +3972,7 @@ static int kvmppc_run_vcpu(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu)
 			if (signal_pending(v->arch.run_task)) {
 				kvmppc_remove_runnable(vc, v);
 				v->stat.signal_exits++;
-				v->arch.kvm_run->exit_reason = KVM_EXIT_INTR;
+				v->run->exit_reason = KVM_EXIT_INTR;
 				v->arch.ret = -EINTR;
 				wake_up(&v->arch.cpu_run);
 			}
@@ -4049,7 +4048,6 @@ int kvmhv_run_single_vcpu(struct kvm_run *kvm_run,
 	vc = vcpu->arch.vcore;
 	vcpu->arch.ceded = 0;
 	vcpu->arch.run_task = current;
-	vcpu->arch.kvm_run = kvm_run;
 	vcpu->arch.stolen_logged = vcore_stolen_time(vc, mftb());
 	vcpu->arch.state = KVMPPC_VCPU_RUNNABLE;
 	vcpu->arch.busy_preempt = TB_NIL;
diff --git a/arch/powerpc/kvm/book3s_hv_nested.c b/arch/powerpc/kvm/book3s_hv_nested.c
index dc97e5be76f6..5a3987f3ebf3 100644
--- a/arch/powerpc/kvm/book3s_hv_nested.c
+++ b/arch/powerpc/kvm/book3s_hv_nested.c
@@ -290,8 +290,7 @@ long kvmhv_enter_nested_guest(struct kvm_vcpu *vcpu)
 			r = RESUME_HOST;
 			break;
 		}
-		r = kvmhv_run_single_vcpu(vcpu->arch.kvm_run, vcpu, hdec_exp,
-					  lpcr);
+		r = kvmhv_run_single_vcpu(vcpu->run, vcpu, hdec_exp, lpcr);
 	} while (is_kvmppc_resume_guest(r));
 
 	/* save L2 state for return */
-- 
2.17.1

