[PATCH v2 10/15] KVM: x86: hyper-v: Always use to_hv_vcpu() accessor to get to 'struct kvm_vcpu_hv'
From: Vitaly Kuznetsov <vkuznets@redhat.com>
Date: 2021-01-26 13:55:53
Subsystem:
kernel virtual machine for x86 (kvm/x86), kvm x86 hyper-v (kvm/hyper-v), the rest, x86 architecture (32-bit and 64-bit) · Maintainers:
Sean Christopherson, Paolo Bonzini, Vitaly Kuznetsov, Linus Torvalds, Thomas Gleixner, Ingo Molnar, Borislav Petkov, Dave Hansen
As a preparation to allocating Hyper-V context dynamically, make it clear who's the user of the said context. No functional change intended. Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com> --- arch/x86/kvm/hyperv.c | 14 ++++++++------ arch/x86/kvm/hyperv.h | 4 +++- arch/x86/kvm/lapic.h | 2 ++ arch/x86/kvm/vmx/vmx.c | 8 +++++--- arch/x86/kvm/x86.c | 4 +++- 5 files changed, 21 insertions(+), 11 deletions(-)
diff --git a/arch/x86/kvm/hyperv.c b/arch/x86/kvm/hyperv.c
index 9a52a07fab81..18e00fb46b15 100644
--- a/arch/x86/kvm/hyperv.c
+++ b/arch/x86/kvm/hyperv.c@@ -190,7 +190,7 @@ static void kvm_hv_notify_acked_sint(struct kvm_vcpu *vcpu, u32 sint) static void synic_exit(struct kvm_vcpu_hv_synic *synic, u32 msr) { struct kvm_vcpu *vcpu = hv_synic_to_vcpu(synic); - struct kvm_vcpu_hv *hv_vcpu = &vcpu->arch.hyperv; + struct kvm_vcpu_hv *hv_vcpu = to_hv_vcpu(vcpu); hv_vcpu->exit.type = KVM_EXIT_HYPERV_SYNIC; hv_vcpu->exit.u.synic.msr = msr;
@@ -293,7 +293,7 @@ static int kvm_hv_syndbg_complete_userspace(struct kvm_vcpu *vcpu) static void syndbg_exit(struct kvm_vcpu *vcpu, u32 msr) { struct kvm_hv_syndbg *syndbg = to_hv_syndbg(vcpu); - struct kvm_vcpu_hv *hv_vcpu = &vcpu->arch.hyperv; + struct kvm_vcpu_hv *hv_vcpu = to_hv_vcpu(vcpu); hv_vcpu->exit.type = KVM_EXIT_HYPERV_SYNDBG; hv_vcpu->exit.u.syndbg.msr = msr;
@@ -839,7 +839,9 @@ void kvm_hv_vcpu_uninit(struct kvm_vcpu *vcpu) bool kvm_hv_assist_page_enabled(struct kvm_vcpu *vcpu) { - if (!(vcpu->arch.hyperv.hv_vapic & HV_X64_MSR_VP_ASSIST_PAGE_ENABLE)) + struct kvm_vcpu_hv *hv_vcpu = to_hv_vcpu(vcpu); + + if (!(hv_vcpu->hv_vapic & HV_X64_MSR_VP_ASSIST_PAGE_ENABLE)) return false; return vcpu->arch.pv_eoi.msr_val & KVM_MSR_ENABLED; }
@@ -1213,7 +1215,7 @@ static u64 current_task_runtime_100ns(void) static int kvm_hv_set_msr(struct kvm_vcpu *vcpu, u32 msr, u64 data, bool host) { - struct kvm_vcpu_hv *hv_vcpu = &vcpu->arch.hyperv; + struct kvm_vcpu_hv *hv_vcpu = to_hv_vcpu(vcpu); switch (msr) { case HV_X64_MSR_VP_INDEX: {
@@ -1376,7 +1378,7 @@ static int kvm_hv_get_msr(struct kvm_vcpu *vcpu, u32 msr, u64 *pdata, bool host) { u64 data = 0; - struct kvm_vcpu_hv *hv_vcpu = &vcpu->arch.hyperv; + struct kvm_vcpu_hv *hv_vcpu = to_hv_vcpu(vcpu); switch (msr) { case HV_X64_MSR_VP_INDEX:
@@ -1494,7 +1496,7 @@ static __always_inline unsigned long *sparse_set_to_vcpu_mask( static u64 kvm_hv_flush_tlb(struct kvm_vcpu *vcpu, u64 ingpa, u16 rep_cnt, bool ex) { struct kvm *kvm = vcpu->kvm; - struct kvm_vcpu_hv *hv_vcpu = &vcpu->arch.hyperv; + struct kvm_vcpu_hv *hv_vcpu = to_hv_vcpu(current_vcpu); struct hv_tlb_flush_ex flush_ex; struct hv_tlb_flush flush; u64 vp_bitmap[KVM_HV_MAX_SPARSE_VCPU_SET_BITS];
diff --git a/arch/x86/kvm/hyperv.h b/arch/x86/kvm/hyperv.h
index fdb321ba9c3f..be1e3f5d1df6 100644
--- a/arch/x86/kvm/hyperv.h
+++ b/arch/x86/kvm/hyperv.h@@ -119,7 +119,9 @@ static inline struct kvm_vcpu *hv_stimer_to_vcpu(struct kvm_vcpu_hv_stimer *stim static inline bool kvm_hv_has_stimer_pending(struct kvm_vcpu *vcpu) { - return !bitmap_empty(vcpu->arch.hyperv.stimer_pending_bitmap, + struct kvm_vcpu_hv *hv_vcpu = to_hv_vcpu(vcpu); + + return !bitmap_empty(hv_vcpu->stimer_pending_bitmap, HV_SYNIC_STIMER_COUNT); }
diff --git a/arch/x86/kvm/lapic.h b/arch/x86/kvm/lapic.h
index 4de7579e206c..4ad2fbbd962a 100644
--- a/arch/x86/kvm/lapic.h
+++ b/arch/x86/kvm/lapic.h@@ -6,6 +6,8 @@ #include <linux/kvm_host.h> +#include "hyperv.h" + #define KVM_APIC_INIT 0 #define KVM_APIC_SIPI 1 #define KVM_APIC_LVT_NUM 6
diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c
index 9db84508aa0b..443878dd775c 100644
--- a/arch/x86/kvm/vmx/vmx.c
+++ b/arch/x86/kvm/vmx/vmx.c@@ -6733,12 +6733,14 @@ static fastpath_t vmx_vcpu_run(struct kvm_vcpu *vcpu) x86_spec_ctrl_restore_host(vmx->spec_ctrl, 0); /* All fields are clean at this point */ - if (static_branch_unlikely(&enable_evmcs)) + if (static_branch_unlikely(&enable_evmcs)) { + struct kvm_vcpu_hv *hv_vcpu = to_hv_vcpu(vcpu); + current_evmcs->hv_clean_fields |= HV_VMX_ENLIGHTENED_CLEAN_FIELD_ALL; - if (static_branch_unlikely(&enable_evmcs)) - current_evmcs->hv_vp_id = vcpu->arch.hyperv.vp_index; + current_evmcs->hv_vp_id = hv_vcpu->vp_index; + } /* MSR_IA32_DEBUGCTLMSR is zeroed on vmexit. Restore it if needed */ if (vmx->host_debugctlmsr)
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 868d2bf8fb95..4c2b1f4260c6 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c@@ -8894,8 +8894,10 @@ static int vcpu_enter_guest(struct kvm_vcpu *vcpu) goto out; } if (kvm_check_request(KVM_REQ_HV_EXIT, vcpu)) { + struct kvm_vcpu_hv *hv_vcpu = to_hv_vcpu(vcpu); + vcpu->run->exit_reason = KVM_EXIT_HYPERV; - vcpu->run->hyperv = vcpu->arch.hyperv.exit; + vcpu->run->hyperv = hv_vcpu->exit; r = 0; goto out; }
--
2.29.2