This patchset implements segment checks for the emulator. These are needed
for guests which can both get the emulator to execute an instruction from an
unprivilged context, and also rely on segmentation for security.
Avi Kivity (7):
KVM: x86 emulator: Add helpers for memory access using segmented
addresses
KVM: x86 emulator: move invlpg emulation into a function
KVM: x86 emulator: change address linearization to return an error
code
KVM: x86 emulator: pass access size and read/write intent to
linearize()
KVM: x86 emulator: move linearize() downwards
KVM: x86 emulator: move desc_limit_scaled()
KVM: x86 emulator: implement segment permission checks
arch/x86/kvm/emulate.c | 222 ++++++++++++++++++++++++++++++++++++++----------
1 files changed, 176 insertions(+), 46 deletions(-)
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