Sean Christopherson bfbcc81bb8 KVM: x86: Add a quirk for KVM's "MONITOR/MWAIT are NOPs!" behavior ... Add a quirk for KVM's behavior of emulating intercepted MONITOR/MWAIT instructions a NOPs regardless of whether or not they are supported in guest CPUID. KVM's current behavior was likely motiviated by a certain fruity operating system that expects MONITOR/MWAIT to be supported unconditionally and blindly executes MONITOR/MWAIT without first checking CPUID. And because KVM does NOT advertise MONITOR/MWAIT to userspace, that's effectively the default setup for any VMM that regurgitates KVM_GET_SUPPORTED_CPUID to KVM_SET_CPUID2. Note, this quirk interacts with KVM_X86_QUIRK_MISC_ENABLE_NO_MWAIT. The behavior is actually desirable, as userspace VMMs that want to unconditionally hide MONITOR/MWAIT from the guest can leave the MISC_ENABLE quirk enabled. Signed-off-by: Sean Christopherson <seanjc@google.com> Message-Id: <20220608224516.3788274-2-seanjc@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>		2022-06-20 11:50:42 -04:00
..
acrn	docs: acrn: Introduce ACRN	2021-02-09 10:58:18 +01:00
coco	virt: sevguest: Rename the sevguest dir and files to sev-guest	2022-04-27 13:29:56 +02:00
kvm	KVM: x86: Add a quirk for KVM's "MONITOR/MWAIT are NOPs!" behavior	2022-06-20 11:50:42 -04:00
uml	docs: UML: Mention telnetd for port channel	2022-03-11 13:51:03 -07:00
guest-halt-polling.rst	docs: virt: guest-halt-polling.txt convert to ReST	2020-02-12 20:10:08 +01:00
index.rst	virt: sevguest: Rename the sevguest dir and files to sev-guest	2022-04-27 13:29:56 +02:00
ne_overview.rst	nitro_enclaves: Update documentation for Arm64 support	2021-09-14 11:11:20 +02:00
paravirt_ops.rst