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From: Andrea Arcangeli <aarcange@redhat.com>
To: Paolo Bonzini <pbonzini@redhat.com>
Cc: Vitaly Kuznetsov <vkuznets@redhat.com>,
	"Dr. David Alan Gilbert" <dgilbert@redhat.com>,
	Marcelo Tosatti <mtosatti@redhat.com>,
	Peter Xu <peterx@redhat.com>,
	kvm@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH 03/17] KVM: monolithic: x86: handle the request_immediate_exit variation
Date: Fri, 20 Sep 2019 17:24:55 -0400	[thread overview]
Message-ID: <20190920212509.2578-4-aarcange@redhat.com> (raw)
In-Reply-To: <20190920212509.2578-1-aarcange@redhat.com>

request_immediate_exit is one of those few cases where the pointer to
function of the method isn't fixed at build time and it requires
special handling because hardware_setup() may override it at runtime.

Signed-off-by: Andrea Arcangeli <aarcange@redhat.com>
---
 arch/x86/kvm/vmx/vmx_ops.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/arch/x86/kvm/vmx/vmx_ops.c b/arch/x86/kvm/vmx/vmx_ops.c
index cdcad73935d9..25d441432901 100644
--- a/arch/x86/kvm/vmx/vmx_ops.c
+++ b/arch/x86/kvm/vmx/vmx_ops.c
@@ -498,7 +498,10 @@ int kvm_x86_ops_check_nested_events(struct kvm_vcpu *vcpu, bool external_intr)
 
 void kvm_x86_ops_request_immediate_exit(struct kvm_vcpu *vcpu)
 {
-	vmx_request_immediate_exit(vcpu);
+	if (likely(enable_preemption_timer))
+		vmx_request_immediate_exit(vcpu);
+	else
+		__kvm_request_immediate_exit(vcpu);
 }
 
 void kvm_x86_ops_sched_in(struct kvm_vcpu *kvm, int cpu)

  parent reply	other threads:[~2019-09-20 21:26 UTC|newest]

Thread overview: 68+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-09-20 21:24 [PATCH 00/17] KVM monolithic v1 Andrea Arcangeli
2019-09-20 21:24 ` [PATCH 01/17] x86: spec_ctrl: fix SPEC_CTRL initialization after kexec Andrea Arcangeli
2019-09-23 10:22   ` Paolo Bonzini
2019-09-23 15:30     ` Sean Christopherson
2019-09-23 17:34       ` Andrea Arcangeli
2019-09-23 22:27         ` Sean Christopherson
2019-09-20 21:24 ` [PATCH 02/17] KVM: monolithic: x86: convert the kvm_x86_ops methods to external functions Andrea Arcangeli
2019-09-23 10:19   ` Paolo Bonzini
2019-09-23 16:13     ` Sean Christopherson
2019-09-23 16:51       ` Paolo Bonzini
2019-09-23 19:21     ` Andrea Arcangeli
2019-09-20 21:24 ` Andrea Arcangeli [this message]
2019-09-23 22:35   ` [PATCH 03/17] KVM: monolithic: x86: handle the request_immediate_exit variation Sean Christopherson
2019-09-23 23:06     ` Andrea Arcangeli
2019-09-23 23:45       ` Sean Christopherson
2019-09-24  0:24         ` Andrea Arcangeli
2019-09-20 21:24 ` [PATCH 04/17] KVM: monolithic: x86: convert the kvm_pmu_ops methods to external functions Andrea Arcangeli
2019-09-20 21:24 ` [PATCH 05/17] KVM: monolithic: x86: enable the kvm_x86_ops " Andrea Arcangeli
2019-09-20 21:24 ` [PATCH 06/17] KVM: monolithic: x86: enable the kvm_pmu_ops " Andrea Arcangeli
2019-09-20 21:24 ` [PATCH 07/17] KVM: monolithic: x86: adjust the section prefixes Andrea Arcangeli
2019-09-23 10:15   ` Paolo Bonzini
2019-09-25 12:13     ` Andrea Arcangeli
2019-09-25 12:32       ` Paolo Bonzini
2019-09-20 21:25 ` [PATCH 08/17] KVM: monolithic: adjust the section prefixes in the KVM common code Andrea Arcangeli
2019-09-20 21:25 ` [PATCH 09/17] KVM: monolithic: x86: remove kvm.ko Andrea Arcangeli
2019-09-20 21:25 ` [PATCH 10/17] KVM: monolithic: x86: use the external functions instead of kvm_x86_ops Andrea Arcangeli
2019-09-23 10:02   ` Paolo Bonzini
2019-09-20 21:25 ` [PATCH 11/17] KVM: monolithic: x86: remove exports Andrea Arcangeli
2019-09-20 21:25 ` [PATCH 12/17] KVM: monolithic: remove exports from KVM common code Andrea Arcangeli
2019-09-20 21:25 ` [PATCH 13/17] KVM: monolithic: x86: drop the kvm_pmu_ops structure Andrea Arcangeli
2019-09-23 10:21   ` Paolo Bonzini
2019-09-24  0:51     ` Andrea Arcangeli
2019-09-24  1:24       ` Paolo Bonzini
2019-09-20 21:25 ` [PATCH 14/17] KVM: monolithic: x86: inline more exit handlers in vmx.c Andrea Arcangeli
2019-09-23 10:19   ` Paolo Bonzini
2019-09-24  1:00     ` Andrea Arcangeli
2019-09-24  1:25       ` Paolo Bonzini
2019-09-24  1:55         ` Andrea Arcangeli
2019-09-24  2:56           ` Andrea Arcangeli
2019-09-25  7:52           ` Paolo Bonzini
2019-09-20 21:25 ` [PATCH 15/17] KVM: retpolines: x86: eliminate retpoline from vmx.c exit handlers Andrea Arcangeli
2019-09-23  9:31   ` Vitaly Kuznetsov
2019-09-23  9:57     ` Paolo Bonzini
2019-09-23 19:05       ` Andrea Arcangeli
2019-09-23 20:23         ` Sean Christopherson
2019-09-23 21:08           ` Andrea Arcangeli
2019-09-23 21:24             ` Sean Christopherson
2019-09-23 23:43               ` Andrea Arcangeli
2019-09-23 23:52                 ` Sean Christopherson
2019-09-24  0:16             ` Paolo Bonzini
2019-09-24  0:35               ` Sean Christopherson
2019-09-24  0:37                 ` Paolo Bonzini
2019-09-24  0:15           ` Paolo Bonzini
2019-09-24  0:38             ` Andrea Arcangeli
2019-09-24  0:46             ` Sean Christopherson
2019-09-24 21:46         ` Andrea Arcangeli
2019-09-25  7:50           ` Paolo Bonzini
2019-09-23 16:37     ` Sean Christopherson
2019-09-23 16:53       ` Paolo Bonzini
2019-09-23 17:42         ` Andrea Arcangeli
2019-09-23 18:15           ` Sean Christopherson
2019-09-23 19:12             ` Andrea Arcangeli
     [not found]     ` <E8FE7592-69C3-455E-8D80-A2D73BB2E14C@dinechin.org>
2019-09-25 20:51       ` Andrea Arcangeli
2019-09-23 16:28   ` Sean Christopherson
2019-09-20 21:25 ` [PATCH 16/17] KVM: retpolines: x86: eliminate retpoline from svm.c " Andrea Arcangeli
2019-09-23 10:01   ` Paolo Bonzini
2019-09-20 21:25 ` [PATCH 17/17] x86: retpolines: eliminate retpoline from msr event handlers Andrea Arcangeli
2019-09-23 15:39 ` [PATCH 00/17] KVM monolithic v1 Sean Christopherson

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