From: Marcelo Tosatti <mtosatti@redhat.com>
To: kvm@vger.kernel.org
Cc: Paolo Bonzini <pbonzini@redhat.com>,
Alex Williamson <alex.williamson@redhat.com>,
Sean Christopherson <seanjc@google.com>,
Peter Xu <peterx@redhat.com>,
Marcelo Tosatti <mtosatti@redhat.com>
Subject: [patch 2/4] KVM: add arch specific vcpu_check_block callback
Date: Mon, 10 May 2021 14:26:48 -0300 [thread overview]
Message-ID: <20210510172817.964478800@redhat.com> (raw)
In-Reply-To: <20210510172646.930550753@redhat.com>
Add callback in kvm_vcpu_check_block, so that architectures
can direct a vcpu to exit the vcpu block loop without requiring
events that would unhalt it.
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Index: kvm/include/linux/kvm_host.h
===================================================================
--- kvm.orig/include/linux/kvm_host.h
+++ kvm/include/linux/kvm_host.h
@@ -971,6 +971,13 @@ static inline int kvm_arch_flush_remote_
}
#endif
+#ifndef __KVM_HAVE_ARCH_VCPU_CHECK_BLOCK
+static inline int kvm_arch_vcpu_check_block(struct kvm_vcpu *vcpu)
+{
+ return 0;
+}
+#endif
+
#ifdef __KVM_HAVE_ARCH_NONCOHERENT_DMA
void kvm_arch_register_noncoherent_dma(struct kvm *kvm);
void kvm_arch_unregister_noncoherent_dma(struct kvm *kvm);
Index: kvm/virt/kvm/kvm_main.c
===================================================================
--- kvm.orig/virt/kvm/kvm_main.c
+++ kvm/virt/kvm/kvm_main.c
@@ -2794,6 +2794,8 @@ static int kvm_vcpu_check_block(struct k
goto out;
if (signal_pending(current))
goto out;
+ if (kvm_arch_vcpu_check_block(vcpu))
+ goto out;
ret = 0;
out:
next prev parent reply other threads:[~2021-05-10 17:54 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-10 17:26 [patch 0/4] VMX: configure posted interrupt descriptor when assigning device (v3) Marcelo Tosatti
2021-05-10 17:26 ` [patch 1/4] KVM: x86: add start_assignment hook to kvm_x86_ops Marcelo Tosatti
2021-05-11 16:26 ` Peter Xu
2021-05-11 17:29 ` Marcelo Tosatti
2021-05-10 17:26 ` Marcelo Tosatti [this message]
2021-05-10 17:26 ` [patch 3/4] KVM: x86: implement kvm_arch_vcpu_check_block callback Marcelo Tosatti
2021-05-10 17:26 ` [patch 4/4] KVM: VMX: update vcpu posted-interrupt descriptor when assigning device Marcelo Tosatti
2021-05-24 15:55 ` Paolo Bonzini
2021-05-24 17:53 ` Marcelo Tosatti
2021-05-25 11:58 ` Paolo Bonzini
-- strict thread matches above, loose matches on Subject: below --
2021-05-11 23:57 [patch 0/4] VMX: configure posted interrupt descriptor when assigning device (v4) Marcelo Tosatti
2021-05-11 23:57 ` [patch 2/4] KVM: add arch specific vcpu_check_block callback Marcelo Tosatti
2021-05-07 13:06 [patch 0/4] VMX: configure posted interrupt descriptor when assigning device Marcelo Tosatti
2021-05-07 13:06 ` [patch 2/4] KVM: add arch specific vcpu_check_block callback Marcelo Tosatti
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