[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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