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| author | Dongli Zhang <dongli.zhang@oracle.com> | 2024-02-23 23:21:03 +0300 |
|---|---|---|
| committer | Sean Christopherson <seanjc@google.com> | 2024-02-27 20:36:48 +0300 |
| commit | bab22040d7fdeb935e57215a183912ba46eee7f0 (patch) | |
| tree | 20ecff34d792bd5dbcf025c45298222a2c74f9f3 /arch/x86/kvm/Makefile | |
| parent | 8e24eeedfda34a920d35eda2f17a0f4b4473dcde (diff) | |
| download | linux-bab22040d7fdeb935e57215a183912ba46eee7f0.tar.xz | |
KVM: VMX: return early if msr_bitmap is not supported
The vmx_msr_filter_changed() may directly/indirectly calls only
vmx_enable_intercept_for_msr() or vmx_disable_intercept_for_msr(). Those
two functions may exit immediately if !cpu_has_vmx_msr_bitmap().
vmx_msr_filter_changed()
-> vmx_disable_intercept_for_msr()
-> pt_update_intercept_for_msr()
-> vmx_set_intercept_for_msr()
-> vmx_enable_intercept_for_msr()
-> vmx_disable_intercept_for_msr()
Therefore, we exit early if !cpu_has_vmx_msr_bitmap().
Signed-off-by: Dongli Zhang <dongli.zhang@oracle.com>
Link: https://lore.kernel.org/r/20240223202104.3330974-3-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
Diffstat (limited to 'arch/x86/kvm/Makefile')
0 files changed, 0 insertions, 0 deletions