From: Jue Wang <juew@google.com>
To: Paolo Bonzini <pbonzini@redhat.com>,
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>
Cc: Tony Luck <tony.luck@intel.com>,
kvm@vger.kernel.org, Greg Thelen <gthelen@google.com>,
Jiaqi Yan <jiaqiyan@google.com>, Jue Wang <juew@google.com>
Subject: [PATCH v3 1/7] KVM: x86: Make APIC_VERSION capture only the magic 0x14UL.
Date: Fri, 13 May 2022 11:20:32 -0700 [thread overview]
Message-ID: <20220513182038.2564643-2-juew@google.com> (raw)
In-Reply-To: <20220513182038.2564643-1-juew@google.com>
This series adds the Corrected Machine Check Interrupt (CMCI) and
Uncorrectable Error No Action required (UCNA) emulation to KVM. The
former is implemented as a LVT CMCI vector. The emulation of UCNA share
the MCE emulation infrastructure.
This is the first of 3 patches that clean up KVM APIC LVT logic.
Suggested-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Jue Wang <juew@google.com>
---
arch/x86/kvm/lapic.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c
index 9322e6340a74..73b94e312f97 100644
--- a/arch/x86/kvm/lapic.c
+++ b/arch/x86/kvm/lapic.c
@@ -54,7 +54,7 @@
#define PRIo64 "o"
/* 14 is the version for Xeon and Pentium 8.4.8*/
-#define APIC_VERSION (0x14UL | ((KVM_APIC_LVT_NUM - 1) << 16))
+#define APIC_VERSION 0x14UL
#define LAPIC_MMIO_LENGTH (1 << 12)
/* followed define is not in apicdef.h */
#define MAX_APIC_VECTOR 256
@@ -367,7 +367,7 @@ static inline int apic_lvt_nmi_mode(u32 lvt_val)
void kvm_apic_set_version(struct kvm_vcpu *vcpu)
{
struct kvm_lapic *apic = vcpu->arch.apic;
- u32 v = APIC_VERSION;
+ u32 v = APIC_VERSION | ((KVM_APIC_LVT_NUM - 1) << 16);
if (!lapic_in_kernel(vcpu))
return;
--
2.36.0.550.gb090851708-goog
next prev parent reply other threads:[~2022-05-13 18:21 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-05-13 18:20 [PATCH v3 0/7] KVM: x86: Add CMCI and UCNA emulation Jue Wang
2022-05-13 18:20 ` Jue Wang [this message]
2022-05-13 18:49 ` [PATCH v3 1/7] KVM: x86: Make APIC_VERSION capture only the magic 0x14UL David Matlack
2022-05-13 18:20 ` [PATCH v3 2/7] KVM: x86: Fill apic_lvt_mask with enums / explicit entries Jue Wang
2022-05-13 18:20 ` [PATCH v3 3/7] KVM: x86: Add APIC_LVTx() macro Jue Wang
2022-05-13 18:20 ` [PATCH v3 4/7] KVM: x86: Add Corrected Machine Check Interrupt (CMCI) emulation to lapic Jue Wang
2022-05-13 18:20 ` [PATCH v3 5/7] KVM: x86: Use kcalloc to allocate the mce_banks array Jue Wang
2022-05-13 18:20 ` [PATCH v3 6/7] KVM: x86: Add emulation for MSR_IA32_MCx_CTL2 MSRs Jue Wang
2022-05-13 18:20 ` [PATCH v3 7/7] KVM: x86: Enable MCG_CMCI_P and handle injected UCNAs Jue Wang
2022-05-13 18:37 ` [PATCH v3 0/7] KVM: x86: Add CMCI and UCNA emulation David Matlack
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