From: FirstName LastName <vannapurve@google.com>
To: seanjc@google.com, pbonzini@redhat.com, dave.hansen@linux.intel.com
Cc: rick.p.edgecombe@intel.com, dapeng1.mi@linux.intel.com,
mizhang@google.com, jmattson@google.com, kvm@vger.kernel.org,
linux-kernel@vger.kernel.org,
Vishal Annapurve <vannapurve@google.com>
Subject: [PATCH 1/2] KVM: x86: Move the default arch state init before vm_init() call
Date: Tue, 5 May 2026 01:41:17 +0000 [thread overview]
Message-ID: <20260505014118.3783476-2-vannapurve@google.com> (raw)
In-Reply-To: <20260505014118.3783476-1-vannapurve@google.com>
From: Vishal Annapurve <vannapurve@google.com>
Move the default kvm state initialization before vendor specific
vm_init() call to allow vendor specific code to override these defaults.
Next patch will use this update to allow TDX specific vm_init() to
override enable_pmu toggle.
Suggested-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Vishal Annapurve <vannapurve@google.com>
---
arch/x86/kvm/x86.c | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 0a1b63c63d1a..fda842adb58a 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -13349,6 +13349,11 @@ int kvm_arch_init_vm(struct kvm *kvm, unsigned long type)
type == KVM_X86_DEFAULT_VM || type == KVM_X86_SW_PROTECTED_VM;
kvm->arch.disabled_quirks = kvm_caps.inapplicable_quirks & kvm_caps.supported_quirks;
+ kvm->arch.default_tsc_khz = max_tsc_khz ? : tsc_khz;
+ kvm->arch.apic_bus_cycle_ns = APIC_BUS_CYCLE_NS_DEFAULT;
+ kvm->arch.guest_can_read_msr_platform_info = true;
+ kvm->arch.enable_pmu = enable_pmu;
+
ret = kvm_page_track_init(kvm);
if (ret)
goto out;
@@ -13372,11 +13377,6 @@ int kvm_arch_init_vm(struct kvm *kvm, unsigned long type)
pvclock_update_vm_gtod_copy(kvm);
raw_spin_unlock_irqrestore(&kvm->arch.tsc_write_lock, flags);
- kvm->arch.default_tsc_khz = max_tsc_khz ? : tsc_khz;
- kvm->arch.apic_bus_cycle_ns = APIC_BUS_CYCLE_NS_DEFAULT;
- kvm->arch.guest_can_read_msr_platform_info = true;
- kvm->arch.enable_pmu = enable_pmu;
-
#if IS_ENABLED(CONFIG_HYPERV)
spin_lock_init(&kvm->arch.hv_root_tdp_lock);
kvm->arch.hv_root_tdp = INVALID_PAGE;
--
2.54.0.545.g6539524ca2-goog
next prev parent reply other threads:[~2026-05-05 1:42 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-05-05 1:41 [PATCH 0/2] KVM: TDX: Disable PMU virtualization for TDX VMs FirstName LastName
2026-05-05 1:41 ` FirstName LastName [this message]
2026-05-05 1:41 ` [PATCH 2/2] KVM: TDX: Disable pmu " FirstName LastName
2026-05-06 23:03 ` Sean Christopherson
2026-05-06 23:39 ` Vishal Annapurve
2026-05-06 23:56 ` Huang, Kai
2026-05-07 0:40 ` Vishal Annapurve
2026-05-07 14:24 ` Sean Christopherson
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