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Add APIC ACCESS VMexit handler

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Update 'apic_access_exit_handler()' function to emulate
guest instruments to read/write guest's lapic registers page

Signed-off-by: Yonghua Huang <yonghua.huang@intel.com>
This commit is contained in:
Yonghua Huang
2018-03-21 01:05:50 +08:00
committed by Jack Ren
parent 9b269aee79
commit f01a8eef58
4 changed files with 44 additions and 4 deletions
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2
hypervisor/include/arch/x86/guest/vlapic.h
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@@ -125,7 +125,7 @@ uint64_t apicv_get_apic_access_addr(struct vm *vm);
uint64_t apicv_get_apic_page_addr(struct vlapic *vlapic);
bool vlapic_apicv_enabled(struct vcpu *vcpu);
void apicv_inject_pir(struct vlapic *vlapic);
int apicv_access_exit_handler(struct vcpu *vcpu);
int apic_access_exit_handler(struct vcpu *vcpu);
int apicv_write_exit_handler(struct vcpu *vcpu);
int apicv_virtualized_eoi_exit_handler(struct vcpu *vcpu);

14
hypervisor/include/arch/x86/vmx.h
View File

@@ -351,6 +351,20 @@
#define VMX_INT_TYPE_HW_EXP 3
#define VMX_INT_TYPE_SW_EXP 6
/*VM exit qulifications for APIC-access
* Access type:
* 0 = linear access for a data read during instruction execution
* 1 = linear access for a data write during instruction execution
* 2 = linear access for an instruction fetch
* 3 = linear access (read or write) during event delivery
* 10 = guest-physical access during event delivery
* 15 = guest-physical access for an instructon fetch or during
* instruction execution
*/
#define APIC_ACCESS_TYPE(qual) (((qual) >> 12) & 0xF)
#define APIC_ACCESS_OFFSET(qual) ((qual) & 0xFFF)
#define VM_SUCCESS 0
#define VM_FAIL -1