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| author | Dongli Zhang <[email protected]> | 2024-02-23 20:21:03 +0000 |
|---|---|---|
| committer | Sean Christopherson <[email protected]> | 2024-02-27 17:36:48 +0000 |
| commit | bab22040d7fdeb935e57215a183912ba46eee7f0 (patch) | |
| tree | 20ecff34d792bd5dbcf025c45298222a2c74f9f3 /drivers/misc/ibmasm/command.c | |
| parent | KVM: VMX: fix comment to add LBR to passthrough MSRs (diff) | |
| download | kernel-bab22040d7fdeb935e57215a183912ba46eee7f0.tar.gz kernel-bab22040d7fdeb935e57215a183912ba46eee7f0.zip | |
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 <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Sean Christopherson <[email protected]>
Diffstat (limited to 'drivers/misc/ibmasm/command.c')
0 files changed, 0 insertions, 0 deletions