From: Joerg Roedel <joro@8bytes.org>
To: Paolo Bonzini <pbonzini@redhat.com>
Cc: Sean Christopherson <seanjc@google.com>,
Vitaly Kuznetsov <vkuznets@redhat.com>,
Wanpeng Li <wanpengli@tencent.com>,
Jim Mattson <jmattson@google.com>, Joerg Roedel <joro@8bytes.org>,
x86@kernel.org, Brijesh Singh <brijesh.singh@amd.com>,
Tom Lendacky <thomas.lendacky@amd.com>,
kvm@vger.kernel.org, linux-kernel@vger.kernel.org,
Joerg Roedel <jroedel@suse.de>
Subject: [PATCH v5 3/6] KVM: SVM: Move kvm_emulate_ap_reset_hold() to AMD specific code
Date: Wed, 20 Oct 2021 14:44:13 +0200 [thread overview]
Message-ID: <20211020124416.24523-4-joro@8bytes.org> (raw)
In-Reply-To: <20211020124416.24523-1-joro@8bytes.org>
From: Joerg Roedel <jroedel@suse.de>
The function is only used by the kvm-amd module. Move it to the AMD
specific part of the code and name it sev_emulate_ap_reset_hold().
Signed-off-by: Joerg Roedel <jroedel@suse.de>
---
arch/x86/include/asm/kvm_host.h | 2 +-
arch/x86/kvm/svm/sev.c | 10 +++++++++-
arch/x86/kvm/x86.c | 11 ++---------
3 files changed, 12 insertions(+), 11 deletions(-)
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index 80f4b8a9233c..b67f550616cf 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -1682,8 +1682,8 @@ int kvm_emulate_monitor(struct kvm_vcpu *vcpu);
int kvm_fast_pio(struct kvm_vcpu *vcpu, int size, unsigned short port, int in);
int kvm_emulate_cpuid(struct kvm_vcpu *vcpu);
int kvm_emulate_halt(struct kvm_vcpu *vcpu);
+int __kvm_vcpu_halt(struct kvm_vcpu *vcpu, int state, int reason);
int kvm_vcpu_halt(struct kvm_vcpu *vcpu);
-int kvm_emulate_ap_reset_hold(struct kvm_vcpu *vcpu);
int kvm_emulate_wbinvd(struct kvm_vcpu *vcpu);
void kvm_get_segment(struct kvm_vcpu *vcpu, struct kvm_segment *var, int seg);
diff --git a/arch/x86/kvm/svm/sev.c b/arch/x86/kvm/svm/sev.c
index 9fb4d8fad1f4..9afa71cb36e6 100644
--- a/arch/x86/kvm/svm/sev.c
+++ b/arch/x86/kvm/svm/sev.c
@@ -2405,6 +2405,14 @@ static u64 ghcb_msr_version_info(void)
return msr;
}
+static int sev_emulate_ap_reset_hold(struct vcpu_svm *svm)
+{
+ int ret = kvm_skip_emulated_instruction(&svm->vcpu);
+
+ return __kvm_vcpu_halt(&svm->vcpu,
+ KVM_MP_STATE_AP_RESET_HOLD, KVM_EXIT_AP_RESET_HOLD) && ret;
+}
+
static int sev_handle_vmgexit_msr_protocol(struct vcpu_svm *svm)
{
struct vmcb_control_area *control = &svm->vmcb->control;
@@ -2536,7 +2544,7 @@ int sev_handle_vmgexit(struct kvm_vcpu *vcpu)
ret = svm_invoke_exit_handler(vcpu, SVM_EXIT_IRET);
break;
case SVM_VMGEXIT_AP_HLT_LOOP:
- ret = kvm_emulate_ap_reset_hold(vcpu);
+ ret = sev_emulate_ap_reset_hold(svm);
break;
case SVM_VMGEXIT_AP_JUMP_TABLE: {
struct kvm_sev_info *sev = &to_kvm_svm(vcpu->kvm)->sev_info;
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index c59b63c56af9..cc3a65d6821d 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -8651,7 +8651,7 @@ void kvm_arch_exit(void)
#endif
}
-static int __kvm_vcpu_halt(struct kvm_vcpu *vcpu, int state, int reason)
+int __kvm_vcpu_halt(struct kvm_vcpu *vcpu, int state, int reason)
{
++vcpu->stat.halt_exits;
if (lapic_in_kernel(vcpu)) {
@@ -8662,6 +8662,7 @@ static int __kvm_vcpu_halt(struct kvm_vcpu *vcpu, int state, int reason)
return 0;
}
}
+EXPORT_SYMBOL_GPL(__kvm_vcpu_halt);
int kvm_vcpu_halt(struct kvm_vcpu *vcpu)
{
@@ -8680,14 +8681,6 @@ int kvm_emulate_halt(struct kvm_vcpu *vcpu)
}
EXPORT_SYMBOL_GPL(kvm_emulate_halt);
-int kvm_emulate_ap_reset_hold(struct kvm_vcpu *vcpu)
-{
- int ret = kvm_skip_emulated_instruction(vcpu);
-
- return __kvm_vcpu_halt(vcpu, KVM_MP_STATE_AP_RESET_HOLD, KVM_EXIT_AP_RESET_HOLD) && ret;
-}
-EXPORT_SYMBOL_GPL(kvm_emulate_ap_reset_hold);
-
#ifdef CONFIG_X86_64
static int kvm_pv_clock_pairing(struct kvm_vcpu *vcpu, gpa_t paddr,
unsigned long clock_type)
--
2.33.1
next prev parent reply other threads:[~2021-10-20 12:44 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-20 12:44 [PATCH v5 0/6] KVM: SVM: Add initial GHCB protocol version 2 support Joerg Roedel
2021-10-20 12:44 ` [PATCH v5 1/6] KVM: SVM: Get rid of set_ghcb_msr() and *ghcb_msr_bits() functions Joerg Roedel
2021-10-20 12:44 ` [PATCH v5 2/6] KVM: SVM: Add helper to generate GHCB MSR verson info, and drop macro Joerg Roedel
2021-10-20 12:44 ` Joerg Roedel [this message]
2021-10-20 14:29 ` [PATCH v5 3/6] KVM: SVM: Move kvm_emulate_ap_reset_hold() to AMD specific code Sean Christopherson
2021-10-20 12:44 ` [PATCH v5 4/6] KVM: SVM: Add support to handle AP reset MSR protocol Joerg Roedel
2021-10-20 17:40 ` Sean Christopherson
2021-10-20 18:13 ` Tom Lendacky
2021-10-20 18:38 ` Sean Christopherson
2021-10-20 18:36 ` Tom Lendacky
2021-10-20 12:44 ` [PATCH v5 5/6] KVM: SVM: Add support for Hypervisor Feature support " Joerg Roedel
2021-10-20 12:44 ` [PATCH v5 6/6] KVM: SVM: Increase supported GHCB protocol version Joerg Roedel
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