From 987f625e0799c9666ce0a0e18c2d0c001db96fad Mon Sep 17 00:00:00 2001 From: Jue Wang Date: Fri, 10 Jun 2022 10:11:29 -0700 Subject: KVM: x86: Add APIC_LVTx() macro. An APIC_LVTx macro is introduced to calcualte the APIC_LVTx register offset based on the index in the lapic_lvt_entry enum. Later patches will extend the APIC_LVTx macro to support the APIC_LVTCMCI register in order to implement Corrected Machine Check Interrupt signaling. Suggested-by: Sean Christopherson Signed-off-by: Jue Wang Signed-off-by: Paolo Bonzini Message-Id: <20220610171134.772566-4-juew@google.com> Signed-off-by: Paolo Bonzini --- arch/x86/kvm/lapic.c | 7 +++---- arch/x86/kvm/lapic.h | 2 ++ 2 files changed, 5 insertions(+), 4 deletions(-) (limited to 'arch/x86') diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c index fe295c718fd9..30eb9b7fbe71 100644 --- a/arch/x86/kvm/lapic.c +++ b/arch/x86/kvm/lapic.c @@ -2093,9 +2093,8 @@ static int kvm_lapic_reg_write(struct kvm_lapic *apic, u32 reg, u32 val) u32 lvt_val; for (i = 0; i < KVM_APIC_MAX_NR_LVT_ENTRIES; i++) { - lvt_val = kvm_lapic_get_reg(apic, - APIC_LVTT + 0x10 * i); - kvm_lapic_set_reg(apic, APIC_LVTT + 0x10 * i, + lvt_val = kvm_lapic_get_reg(apic, APIC_LVTx(i)); + kvm_lapic_set_reg(apic, APIC_LVTx(i), lvt_val | APIC_LVT_MASKED); } apic_update_lvtt(apic); @@ -2411,7 +2410,7 @@ void kvm_lapic_reset(struct kvm_vcpu *vcpu, bool init_event) kvm_apic_set_version(apic->vcpu); for (i = 0; i < KVM_APIC_MAX_NR_LVT_ENTRIES; i++) - kvm_lapic_set_reg(apic, APIC_LVTT + 0x10 * i, APIC_LVT_MASKED); + kvm_lapic_set_reg(apic, APIC_LVTx(i), APIC_LVT_MASKED); apic_update_lvtt(apic); if (kvm_vcpu_is_reset_bsp(vcpu) && kvm_check_has_quirk(vcpu->kvm, KVM_X86_QUIRK_LINT0_REENABLED)) diff --git a/arch/x86/kvm/lapic.h b/arch/x86/kvm/lapic.h index af26777fb0ea..08843c21084d 100644 --- a/arch/x86/kvm/lapic.h +++ b/arch/x86/kvm/lapic.h @@ -39,6 +39,8 @@ enum lapic_lvt_entry { KVM_APIC_MAX_NR_LVT_ENTRIES, }; +#define APIC_LVTx(x) (APIC_LVTT + 0x10 * (x)) + struct kvm_timer { struct hrtimer timer; s64 period; /* unit: ns */ -- cgit v1.2.3