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
47 config EXT_SW_INTERRUPTS
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. Extension name is "swintr_intercept"
55 config DEBUG_EXT_SW_INTERRUPTS
56 bool "Enable debugging of software interrupt interception code"
57 depends on EXT_SW_INTERRUPTS
60 This will enable useful debugging printouts for software
63 config EXT_SWINTR_PASSTHROUGH
64 bool "Hook all unhandled sofware interrupts for passthrough"
65 depends on EXT_SW_INTERRUPTS
68 If enabled, this will cause all software interrupts
69 (INT instruction vectors) to be hooked for passthrough.
70 May reduce performance but useful for debugging.
72 config EXT_SYSCALL_HIJACK
73 bool "Enable System Call Hijacking"
74 depends on EXT_SW_INTERRUPTS
77 Enable the VMM to hijack system calls executed by the guest.
78 If enabled, the VMM will hook execution of INT 80
80 config DEBUG_EXT_SYSCALL_HIJACK
81 bool "Enable Syscall Hijack Debug in Palacios"
82 depends on EXT_SYSCALL_HIJACK
85 Enable Debugging printouts for syscall hijacking code
88 config EXT_SYSCALL_PASSTHROUGH
89 bool "Hook all unhandled system calls for passthrough"
90 depends on EXT_SYSCALL_HIJACK
93 If enabled, this option will cause all system calls
94 that are not explicitly hooked to be hooked for
95 passthrough. This is useful for debugging.