哪款处理器支持VMX Preemption Timer 尽管在手册中已经描述了VMX Preemption Time的Specification,可是并不是所有处理器都支持这项功能,比如我的T2300就不支持,实验室的E8600也不行。 问了下Intel的人,回复是只有最新的Intel Core i7系列才开始支持。所以要用到这项特性的前一定要检查IA32_VMX_PROCBASED_CTLS (index...
Hi, From what I understand, the VMX-preemption timer should only decrement when in VMX non-root operations. I have been trying to use it as a way to
一条指令执行完成时(已更新体系状态)CPU将按表 6-2的优先顺序服务中断,VMX开启后有拦截和无条件退出,会影响中断优先级,手册中(VMX部分)也没有类似这样的表,只能从手册中搜索猜测。 VMX中影响中断优先级的大约有: Event Injection (vectoring 进入) Pending MTF VM-exit MTF VM-exit VMX-preemption timer NMI-w...
待解决 悬赏分:1 - 离问题结束还有 VMX-preemption timer value问题补充:匿名 2013-05-23 12:21:38 正在翻译,请等待... 匿名 2013-05-23 12:23:18 VMX - 抢占定时器值。 匿名 2013-05-23 12:24:58 VMX-preemption timer value 匿名 2013-05-23 12:26:38 VMX 抢占计时器值 匿名 201...
var PIN_BASED_PREEMPTION_TIMER: UInt32 The value that controls whether the VMX-preemption timer counts down in VMX non-root operation. var PIN_BASED_POSTED_INTR: UInt32 The value that controls whether the processor gives special treatment to interrupts with posted-interrupt notification vectors. va...
The preemption timer counted down to zero. macOS 10.10+ var VMX_REASON_VMX_TIMER_EXPIRED: Int { get } See Also Exit Reasons var VMX_REASON_EXC_NMI: Int VMX exit due to an exception or non-maskable interrupt (NMI). var VMX_REASON_IRQ: Int An external interrupt arrived and the “exte...
{ 0: 'External interrupt exiting', 3: 'NMI exiting', 5: 'Virtual NMIs', 6: 'Activate VMX-preemption timer', 7: 'Process posted interrupts', }, cap_msr = MSR_IA32_VMX_PINBASED_CTLS, true_cap_msr = MSR_IA32_VMX_TRUE_PINBASED_CTLS, ), Control( name = 'primary processor-based ...
if (BX_SUPPORT_VMX_EXTENSION(BX_VMX_PREEMPTION_TIMER)) cap->vmx_vmexit_ctrl_supported_bits |= VMX_VMEXIT_CTRL1_STORE_VMX_PREEMPTION_TIMER; cap->vmx_vmexit_ctrl1_supported_bits |= VMX_VMEXIT_CTRL1_STORE_VMX_PREEMPTION_TIMER; #endif #if BX_SUPPORT_UINTR if (BX_CPUID_SUPPORT_ISA_EXT...
'PREEMPTION_TIMER': 52, 'INVVPID': 53, 'WBINVD': 54, 'XSETBV': 55, 'APIC_WRITE': 56, 'RDRAND': 57, 'INVPCID': 58, 'VMFUNC': 59, 'ENCLS': 60, 'RDSEED': 61, 'PML_FULL': 62, 'XSAVES': 63, 'XRSTORS': 64, 'UMWAIT': 67, 'TPAUSE': 68, 'BUS_LOCK': 74...
偶然看到Github上有个阿里云大佬开源了一个非常小巧的虚拟机实现——Peach,虽然没有什么实际作用(指VM Monitor特别简单,而且完全没有实现外围设备),但是可以让人迅速对Intel VMX技术有清晰的概念。作者还同时在自己的微信公众号发布了讲解如何实现该实例的文章,但是99块的门槛有点夸张了😂。读完源码后我Fork了一份,...