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| author | Jiongxi Li <jiongxi.li@intel.com> | 2012-09-17 21:05:11 +0100 |
|---|---|---|
| committer | Jiongxi Li <jiongxi.li@intel.com> | 2012-09-17 21:05:11 +0100 |
| commit | 25b81a7941d71fabd4c8c56e9d3d76801d061842 (patch) | |
| tree | 70c210788e3b17400e6c8a2a736a0298ec8bacea /xen/include/asm-x86/hvm/vmx | |
| parent | f62b02e177cd03da2b8397b9bdf1a53b541df3f3 (diff) | |
| download | xen-25b81a7941d71fabd4c8c56e9d3d76801d061842.tar.gz xen-25b81a7941d71fabd4c8c56e9d3d76801d061842.tar.bz2 xen-25b81a7941d71fabd4c8c56e9d3d76801d061842.zip | |
xen: enable Virtual-interrupt delivery
Virtual interrupt delivery avoids Xen to inject vAPIC interrupts
manually, which is fully taken care of by the hardware. This needs
some special awareness into existing interrupr injection path:
For pending interrupt from vLAPIC, instead of direct injection, we may
need update architecture specific indicators before resuming to guest.
Before returning to guest, RVI should be updated if any pending IRRs
EOI exit bitmap controls whether an EOI write should cause VM-Exit. If
set, a trap-like induced EOI VM-Exit is triggered. The approach here
is to manipulate EOI exit bitmap based on value of TMR. Level
triggered irq requires a hook in vLAPIC EOI write, so that vIOAPIC EOI
is triggered and emulated
Signed-off-by: Gang Wei <gang.wei@intel.com>
Signed-off-by: Yang Zhang <yang.z.zhang@intel.com>
Signed-off-by: Jiongxi Li <jiongxi.li@intel.com>
Committed-by: Keir Fraser <keir@xen.org>
Diffstat (limited to 'xen/include/asm-x86/hvm/vmx')
| -rw-r--r-- | xen/include/asm-x86/hvm/vmx/vmcs.h | 17 | ||||
| -rw-r--r-- | xen/include/asm-x86/hvm/vmx/vmx.h | 1 |
2 files changed, 18 insertions, 0 deletions
diff --git a/xen/include/asm-x86/hvm/vmx/vmcs.h b/xen/include/asm-x86/hvm/vmx/vmcs.h index 7e57dc2cbf..3a1bd0488b 100644 --- a/xen/include/asm-x86/hvm/vmx/vmcs.h +++ b/xen/include/asm-x86/hvm/vmx/vmcs.h @@ -108,6 +108,9 @@ struct arch_vmx_struct { unsigned int host_msr_count; struct vmx_msr_entry *host_msr_area; + uint32_t eoi_exitmap_changed; + uint64_t eoi_exit_bitmap[4]; + unsigned long host_cr0; /* Is the guest in real mode? */ @@ -181,6 +184,7 @@ extern u32 vmx_vmentry_control; #define SECONDARY_EXEC_WBINVD_EXITING 0x00000040 #define SECONDARY_EXEC_UNRESTRICTED_GUEST 0x00000080 #define SECONDARY_EXEC_APIC_REGISTER_VIRT 0x00000100 +#define SECONDARY_EXEC_VIRTUAL_INTR_DELIVERY 0x00000200 #define SECONDARY_EXEC_PAUSE_LOOP_EXITING 0x00000400 #define SECONDARY_EXEC_ENABLE_INVPCID 0x00001000 extern u32 vmx_secondary_exec_control; @@ -231,6 +235,8 @@ extern bool_t cpu_has_vmx_ins_outs_instr_info; (vmx_secondary_exec_control & SECONDARY_EXEC_PAUSE_LOOP_EXITING) #define cpu_has_vmx_apic_reg_virt \ (vmx_secondary_exec_control & SECONDARY_EXEC_APIC_REGISTER_VIRT) +#define cpu_has_vmx_virtual_intr_delivery \ + (vmx_secondary_exec_control & SECONDARY_EXEC_VIRTUAL_INTR_DELIVERY) /* GUEST_INTERRUPTIBILITY_INFO flags. */ #define VMX_INTR_SHADOW_STI 0x00000001 @@ -249,6 +255,7 @@ enum vmcs_field { GUEST_GS_SELECTOR = 0x0000080a, GUEST_LDTR_SELECTOR = 0x0000080c, GUEST_TR_SELECTOR = 0x0000080e, + GUEST_INTR_STATUS = 0x00000810, HOST_ES_SELECTOR = 0x00000c00, HOST_CS_SELECTOR = 0x00000c02, HOST_SS_SELECTOR = 0x00000c04, @@ -276,6 +283,14 @@ enum vmcs_field { APIC_ACCESS_ADDR_HIGH = 0x00002015, EPT_POINTER = 0x0000201a, EPT_POINTER_HIGH = 0x0000201b, + EOI_EXIT_BITMAP0 = 0x0000201c, + EOI_EXIT_BITMAP0_HIGH = 0x0000201d, + EOI_EXIT_BITMAP1 = 0x0000201e, + EOI_EXIT_BITMAP1_HIGH = 0x0000201f, + EOI_EXIT_BITMAP2 = 0x00002020, + EOI_EXIT_BITMAP2_HIGH = 0x00002021, + EOI_EXIT_BITMAP3 = 0x00002022, + EOI_EXIT_BITMAP3_HIGH = 0x00002023, GUEST_PHYSICAL_ADDRESS = 0x00002400, GUEST_PHYSICAL_ADDRESS_HIGH = 0x00002401, VMCS_LINK_POINTER = 0x00002800, @@ -396,6 +411,8 @@ int vmx_write_guest_msr(u32 msr, u64 val); int vmx_add_guest_msr(u32 msr); int vmx_add_host_load_msr(u32 msr); void vmx_vmcs_switch(struct vmcs_struct *from, struct vmcs_struct *to); +void vmx_set_eoi_exit_bitmap(struct vcpu *v, u8 vector); +void vmx_clear_eoi_exit_bitmap(struct vcpu *v, u8 vector); #endif /* ASM_X86_HVM_VMX_VMCS_H__ */ diff --git a/xen/include/asm-x86/hvm/vmx/vmx.h b/xen/include/asm-x86/hvm/vmx/vmx.h index 27704f1f38..edde077c1d 100644 --- a/xen/include/asm-x86/hvm/vmx/vmx.h +++ b/xen/include/asm-x86/hvm/vmx/vmx.h @@ -119,6 +119,7 @@ void vmx_update_cpu_exec_control(struct vcpu *v); #define EXIT_REASON_MCE_DURING_VMENTRY 41 #define EXIT_REASON_TPR_BELOW_THRESHOLD 43 #define EXIT_REASON_APIC_ACCESS 44 +#define EXIT_REASON_EOI_INDUCED 45 #define EXIT_REASON_ACCESS_GDTR_OR_IDTR 46 #define EXIT_REASON_ACCESS_LDTR_OR_TR 47 #define EXIT_REASON_EPT_VIOLATION 48 |