Differential D29307 Diff 96774 sys/xen/interface/vm_event.h

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sys/xen/interface/vm_event.h

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* DEALINGS IN THE SOFTWARE.		* DEALINGS IN THE SOFTWARE.
*/		*/

#ifndef _XEN_PUBLIC_VM_EVENT_H		#ifndef _XEN_PUBLIC_VM_EVENT_H
#define _XEN_PUBLIC_VM_EVENT_H		#define _XEN_PUBLIC_VM_EVENT_H

#include "xen.h"		#include "xen.h"

#define VM_EVENT_INTERFACE_VERSION 0x00000006		#define VM_EVENT_INTERFACE_VERSION 0x00000007

#if defined(__XEN__) \|\| defined(__XEN_TOOLS__)		#if defined(__XEN__) \|\| defined(__XEN_TOOLS__)

#include "io/ring.h"		#include "io/ring.h"

/*		/*
* Memory event flags		* Memory event flags
*/		*/
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* Execute fast singlestepping on vm_event response.		* Execute fast singlestepping on vm_event response.
* Requires the vCPU to be paused already (synchronous events only).		* Requires the vCPU to be paused already (synchronous events only).
*		*
* On a response requires setting the p2midx field of fast_singlestep to which		* On a response requires setting the p2midx field of fast_singlestep to which
* Xen will switch the vCPU to on the occurance of the first singlestep, after		* Xen will switch the vCPU to on the occurance of the first singlestep, after
* which singlestep gets automatically disabled.		* which singlestep gets automatically disabled.
*/		*/
#define VM_EVENT_FLAG_FAST_SINGLESTEP (1 << 11)		#define VM_EVENT_FLAG_FAST_SINGLESTEP (1 << 11)
		/*
		* Set if the event comes from a nested VM and thus npt_base is valid.
		*/
		#define VM_EVENT_FLAG_NESTED_P2M (1 << 12)
		/*
		* Reset the vmtrace buffer (if vmtrace is enabled)
		*/
		#define VM_EVENT_FLAG_RESET_VMTRACE (1 << 13)

/*		/*
* Reasons for the vm event request		* Reasons for the vm event request
*/		*/

/* Default case */		/* Default case */
#define VM_EVENT_REASON_UNKNOWN 0		#define VM_EVENT_REASON_UNKNOWN 0
/* Memory access violation */		/* Memory access violation */
▲ Show 20 Lines • Show All 73 Lines • ▼ Show 20 Lines	struct vm_event_regs_x86 {
uint64_t cr4;		uint64_t cr4;
uint64_t sysenter_cs;		uint64_t sysenter_cs;
uint64_t sysenter_esp;		uint64_t sysenter_esp;
uint64_t sysenter_eip;		uint64_t sysenter_eip;
uint64_t msr_efer;		uint64_t msr_efer;
uint64_t msr_star;		uint64_t msr_star;
uint64_t msr_lstar;		uint64_t msr_lstar;
uint64_t gdtr_base;		uint64_t gdtr_base;

		/*
		* When VM_EVENT_FLAG_NESTED_P2M is set, this event comes from a nested
		* VM. npt_base is the guest physical address of the L1 hypervisors
		* EPT/NPT tables for the nested guest.
		*
		* All bits outside of architectural address ranges are reserved for
		* future metadata.
		*/
		uint64_t npt_base;

		/*
		* Current position in the vmtrace buffer, or ~0 if vmtrace is not active.
		*
		* For Intel Processor Trace, it is the upper half of MSR_RTIT_OUTPUT_MASK.
		*/
		uint64_t vmtrace_pos;

uint32_t cs_base;		uint32_t cs_base;
uint32_t ss_base;		uint32_t ss_base;
uint32_t ds_base;		uint32_t ds_base;
uint32_t es_base;		uint32_t es_base;
uint64_t fs_base;		uint64_t fs_base;
uint64_t gs_base;		uint64_t gs_base;
struct vm_event_x86_selector_reg cs;		struct vm_event_x86_selector_reg cs;
struct vm_event_x86_selector_reg ss;		struct vm_event_x86_selector_reg ss;
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* Only the register 'pc' can be set on a vm_event response using the		* Only the register 'pc' can be set on a vm_event response using the
* VM_EVENT_FLAG_SET_REGISTERS flag.		* VM_EVENT_FLAG_SET_REGISTERS flag.
*/		*/
struct vm_event_regs_arm {		struct vm_event_regs_arm {
uint64_t ttbr0;		uint64_t ttbr0;
uint64_t ttbr1;		uint64_t ttbr1;
uint64_t ttbcr;		uint64_t ttbcr;
uint64_t pc;		uint64_t pc;
uint32_t cpsr;		uint64_t cpsr;
uint32_t _pad;
};		};

/*		/*
* mem_access flag definitions		* mem_access flag definitions
*		*
* These flags are set only as part of a mem_event request.		* These flags are set only as part of a mem_event request.
*		*
* R/W/X: Defines the type of violation that has triggered the event		* R/W/X: Defines the type of violation that has triggered the event
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