4 bool "Enable Time virtualization"
7 Enables the timer virtualization extensions. These hide the cost of
8 running inside the VMM context. This can aid the consistency of
9 time between multiple timers, but can cause the guest to run
10 a good bit slower than the host in VM-intensive parts of the code.
14 bool "Fully virtualize guest TSC"
18 Virtualize the processor time stamp counter in the guest,
19 generally increasing consistency between various time sources
20 but also potentially making guest time run slower than real time.
23 bool "Support virtualized MTTRs"
26 Provides a virtualized set of MTTR registers
29 bool "Support machine-check functionality"
32 Provides a virtualized machine-check architecture
34 config DEGUB_EXT_MACH_CHECK
35 bool "Debug machine-check functionality"
37 depends on EXT_MACH_CHECK
39 Enable virtual machine-check architecture debugging
45 Provides the inspection extension
48 bool "Enable interception and hooking of software interrupts"
51 This feature will cause the VMM to intercept the execution
52 of software interrupts (i.e. the INTn instruction) and enable
53 any INT vector to be hooked
55 config SWINTR_PASSTHROUGH
56 bool "Hook all unhandled sofware interrupts for passthrough"
57 depends on SW_INTERRUPTS
60 If enabled, this will cause all software interrupts
61 (INT instruction vectors) to be hooked for passthrough.
62 May reduce performance but useful for debugging.
65 bool "Enable System Call Hijacking"
66 depends on SW_INTERRUPTS
69 Enable the VMM to hijack system calls executed by the guest.
70 If enabled, the VMM will hook execution of INT 80
71 (support for Fast-System Calls coming soon)
73 config SYSCALL_PASSTHROUGH
74 bool "Hook all unhandled system calls for passthrough"
75 depends on SYSCALL_HIJACK
78 If enabled, this option will cause all system calls
79 that are not explicitly hooked to be hooked for
80 passthrough. This is useful for debugging.
82 config HIJACK_SYSCALL_MSR
83 bool "Intercept Syscall-related MSR reads & writes"
84 depends on SYSCALL_HIJACK
87 Allow the VMM to intercept reads and writes to MSRs
88 related to SYSCALL and SYSENTER instructions. Specifically,
89 it will intercept R/W to STAR, CSTAR, and LSTAR.