[PATCH 0/2] KVM: TDX: Disable PMU virtualization for TDX VMs
From: FirstName LastName
Date: Mon May 04 2026 - 21:42:10 EST
From: Vishal Annapurve <vannapurve@xxxxxxxxxx>
TDX module virtualizes PMU for TDX VMs [1]. KVM has limited role to play
in virtualizing PMU accesses and needs additional enlightenment to
support all toggles provided by TDX module.
This series disables PMU virtualization within KVM for TDX VMs, which is
a safe bet until the complete set of PMU controls are implemented within KVM.
[1] Section 15.2: https://cdrdv2.intel.com/v1/dl/getContent/733575
Vishal Annapurve (2):
KVM: x86: Move the default arch state init before vm_init() call
KVM: TDX: Disable pmu virtualization for TDX VMs
arch/x86/kvm/vmx/tdx.c | 6 ++++++
arch/x86/kvm/x86.c | 10 +++++-----
2 files changed, 11 insertions(+), 5 deletions(-)
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2.54.0.545.g6539524ca2-goog