diff options
author | Sean Christopherson <[email protected]> | 2019-12-20 20:45:02 -0800 |
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committer | Borislav Petkov <[email protected]> | 2020-01-13 17:53:57 +0100 |
commit | ef4d3bf19855641fc8a1f621eaf06e2a2bb872bb (patch) | |
tree | 59a71b6e73ea5ee9a9b07728687a5fb1af3a39a6 /scripts/bpf_helpers_doc.py | |
parent | 7d37953ba81121c8725f99356f7ee9762d4c3ed9 (diff) |
x86/cpu: Clear VMX feature flag if VMX is not fully enabled
Now that IA32_FEAT_CTL is always configured and locked for CPUs that are
known to support VMX[*], clear the VMX capability flag if the MSR is
unsupported or BIOS disabled VMX, i.e. locked IA32_FEAT_CTL and didn't
set the appropriate VMX enable bit.
[*] Because init_ia32_feat_ctl() is called from vendors ->c_init(), it's
still possible for IA32_FEAT_CTL to be left unlocked when VMX is
supported by the CPU. This is not fatal, and will be addressed in a
future patch.
Signed-off-by: Sean Christopherson <[email protected]>
Signed-off-by: Borislav Petkov <[email protected]>
Link: https://lkml.kernel.org/r/[email protected]
Diffstat (limited to 'scripts/bpf_helpers_doc.py')
0 files changed, 0 insertions, 0 deletions