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| author | Jim Mattson | 2017-04-26 17:53:46 +0200 |
|---|---|---|
| committer | Paolo Bonzini | 2017-04-27 17:05:43 +0200 |
| commit | 70f3aac964ae2bc9a0a1d5d65a62e258591ade18 (patch) | |
| tree | 30ce96719ddc7e97c7afeef0880437cc3be1b60c /Documentation/virtual | |
| parent | KVM: x86: fix emulation of RSM and IRET instructions (diff) | |
| download | kernel-qcow2-linux-70f3aac964ae2bc9a0a1d5d65a62e258591ade18.tar.gz kernel-qcow2-linux-70f3aac964ae2bc9a0a1d5d65a62e258591ade18.tar.xz kernel-qcow2-linux-70f3aac964ae2bc9a0a1d5d65a62e258591ade18.zip | |
kvm: nVMX: Remove superfluous VMX instruction fault checks
According to the Intel SDM, "Certain exceptions have priority over VM
exits. These include invalid-opcode exceptions, faults based on
privilege level*, and general-protection exceptions that are based on
checking I/O permission bits in the task-state segment (TSS)."
There is no need to check for faulting conditions that the hardware
has already checked.
* These include faults generated by attempts to execute, in
virtual-8086 mode, privileged instructions that are not recognized
in that mode.
Signed-off-by: Jim Mattson <jmattson@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'Documentation/virtual')
0 files changed, 0 insertions, 0 deletions