From: Vipin Sharma <vipinsh@google.com>
To: seanjc@google.com, pbonzini@redhat.com, vkuznets@redhat.com,
dmatlack@google.com
Cc: kvm@vger.kernel.org, linux-kernel@vger.kernel.org,
Vipin Sharma <vipinsh@google.com>
Subject: [PATCH v2 1/6] KVM: x86: hyper-v: Use common code for hypercall userspace exit
Date: Mon, 21 Nov 2022 15:40:21 -0800 [thread overview]
Message-ID: <20221121234026.3037083-2-vipinsh@google.com> (raw)
In-Reply-To: <20221121234026.3037083-1-vipinsh@google.com>
Remove duplicate code to exit to userspace for hyper-v hypercalls and
use a common place to exit.
Signed-off-by: Vipin Sharma <vipinsh@google.com>
Suggested-by: Sean Christopherson <seanjc@google.com>
---
arch/x86/kvm/hyperv.c | 27 +++++++++++----------------
1 file changed, 11 insertions(+), 16 deletions(-)
diff --git a/arch/x86/kvm/hyperv.c b/arch/x86/kvm/hyperv.c
index 2c7f2a26421e..0b6964ed2e66 100644
--- a/arch/x86/kvm/hyperv.c
+++ b/arch/x86/kvm/hyperv.c
@@ -2503,14 +2503,7 @@ int kvm_hv_hypercall(struct kvm_vcpu *vcpu)
ret = HV_STATUS_INVALID_HYPERCALL_INPUT;
break;
}
- vcpu->run->exit_reason = KVM_EXIT_HYPERV;
- vcpu->run->hyperv.type = KVM_EXIT_HYPERV_HCALL;
- vcpu->run->hyperv.u.hcall.input = hc.param;
- vcpu->run->hyperv.u.hcall.params[0] = hc.ingpa;
- vcpu->run->hyperv.u.hcall.params[1] = hc.outgpa;
- vcpu->arch.complete_userspace_io =
- kvm_hv_hypercall_complete_userspace;
- return 0;
+ goto hypercall_userspace_exit;
case HVCALL_FLUSH_VIRTUAL_ADDRESS_LIST:
if (unlikely(hc.var_cnt)) {
ret = HV_STATUS_INVALID_HYPERCALL_INPUT;
@@ -2569,14 +2562,7 @@ int kvm_hv_hypercall(struct kvm_vcpu *vcpu)
ret = HV_STATUS_OPERATION_DENIED;
break;
}
- vcpu->run->exit_reason = KVM_EXIT_HYPERV;
- vcpu->run->hyperv.type = KVM_EXIT_HYPERV_HCALL;
- vcpu->run->hyperv.u.hcall.input = hc.param;
- vcpu->run->hyperv.u.hcall.params[0] = hc.ingpa;
- vcpu->run->hyperv.u.hcall.params[1] = hc.outgpa;
- vcpu->arch.complete_userspace_io =
- kvm_hv_hypercall_complete_userspace;
- return 0;
+ goto hypercall_userspace_exit;
}
default:
ret = HV_STATUS_INVALID_HYPERCALL_CODE;
@@ -2585,6 +2571,15 @@ int kvm_hv_hypercall(struct kvm_vcpu *vcpu)
hypercall_complete:
return kvm_hv_hypercall_complete(vcpu, ret);
+
+hypercall_userspace_exit:
+ vcpu->run->exit_reason = KVM_EXIT_HYPERV;
+ vcpu->run->hyperv.type = KVM_EXIT_HYPERV_HCALL;
+ vcpu->run->hyperv.u.hcall.input = hc.param;
+ vcpu->run->hyperv.u.hcall.params[0] = hc.ingpa;
+ vcpu->run->hyperv.u.hcall.params[1] = hc.outgpa;
+ vcpu->arch.complete_userspace_io = kvm_hv_hypercall_complete_userspace;
+ return 0;
}
void kvm_hv_init_vm(struct kvm *kvm)
--
2.38.1.584.g0f3c55d4c2-goog
next prev parent reply other threads:[~2022-11-21 23:40 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-11-21 23:40 [PATCH v2 0/6] Add Hyper-v extended hypercall support in KVM Vipin Sharma
2022-11-21 23:40 ` Vipin Sharma [this message]
2022-11-22 16:04 ` [PATCH v2 1/6] KVM: x86: hyper-v: Use common code for hypercall userspace exit Vitaly Kuznetsov
2022-11-22 19:58 ` Sean Christopherson
2022-11-23 20:01 ` Vipin Sharma
2022-11-21 23:40 ` [PATCH v2 2/6] KVM: x86: hyper-v: Add extended hypercall support in Hyper-v Vipin Sharma
2022-11-22 16:29 ` Vitaly Kuznetsov
2022-11-23 19:43 ` Vipin Sharma
2022-11-24 8:36 ` Vitaly Kuznetsov
2022-11-24 9:03 ` Vipin Sharma
2022-11-24 9:28 ` Vitaly Kuznetsov
2022-11-21 23:40 ` [PATCH v2 3/6] KVM: selftests: Test Hyper-V extended hypercall enablement Vipin Sharma
2022-11-22 16:02 ` Vitaly Kuznetsov
2022-11-21 23:40 ` [PATCH v2 4/6] KVM: selftests: Replace hardcoded Linux OS id with HYPERV_LINUX_OS_ID Vipin Sharma
2022-11-22 16:00 ` Vitaly Kuznetsov
2022-11-21 23:40 ` [PATCH v2 5/6] KVM: selftests: Make vCPU exit reason test assertion common Vipin Sharma
2022-11-21 23:40 ` [PATCH v2 6/6] KVM: selftests: Test Hyper-V extended hypercall exit to userspace Vipin Sharma
2022-11-22 15:57 ` Vitaly Kuznetsov
2022-11-23 19:33 ` Vipin Sharma
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