From c4ae60e4bbf8f5fd4929d2c98543d9c163cb336b Mon Sep 17 00:00:00 2001 From: Liran Alon Date: Mon, 12 Mar 2018 13:12:47 +0200 Subject: KVM: x86: Add module parameter for supporting VMware backdoor MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Support access to VMware backdoor requires KVM to intercept #GP exceptions from guest which introduce slight performance hit. Therefore, control this support by module parameter. Note that module parameter is exported as it should be consumed by kvm_intel & kvm_amd to determine if they should intercept #GP or not. This commit doesn't change semantics. It is done as a preparation for future commits. Signed-off-by: Liran Alon Reviewed-by: Nikita Leshenko Reviewed-by: Radim Krčmář Signed-off-by: Paolo Bonzini --- Documentation/admin-guide/kernel-parameters.txt | 3 +++ 1 file changed, 3 insertions(+) (limited to 'Documentation/admin-guide') diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt index 1d1d53f85ddd..0f5e3c8eaf5d 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -1887,6 +1887,9 @@ kvm.ignore_msrs=[KVM] Ignore guest accesses to unhandled MSRs. Default is 0 (don't ignore, but inject #GP) + kvm.enable_vmware_backdoor=[KVM] Support VMware backdoor PV interface. + Default is false (don't support). + kvm.mmu_audit= [KVM] This is a R/W parameter which allows audit KVM MMU at runtime. Default is 0 (off) -- cgit v1.2.3