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KVM: x86: Use non-atomic bit ops to manipulate "shadow" MSR intercepts
authorSean Christopherson <seanjc@google.com>
Tue, 10 Jun 2025 22:57:12 +0000 (15:57 -0700)
committerSean Christopherson <seanjc@google.com>
Fri, 20 Jun 2025 20:05:40 +0000 (13:05 -0700)
commitb1bccf78839080a93898342cf1a613c38e871f75
tree2bb6119ff49e172e5695d2e0de364358c766e8b5tree
parent6353cd685c69f2b3e9a2833f6ff03a8f94c14c0acommit | diff
KVM: x86: Use non-atomic bit ops to manipulate "shadow" MSR intercepts

Manipulate the MSR bitmaps using non-atomic bit ops APIs (two underscores),
as the bitmaps are per-vCPU and are only ever accessed while vcpu->mutex is
held.

Reviewed-by: Binbin Wu <binbin.wu@linux.intel.com>
Link: https://lore.kernel.org/r/20250610225737.156318-8-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
arch/x86/kvm/svm/svm.c diff | blob | blame | history
arch/x86/kvm/vmx/vmx.c diff | blob | blame | history
Linux 6.x block layer and io_uring tree(s)