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HV: restore lapic state and apic id upon INIT

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Per SDM 10.12.5.1 vol.3, local APIC should keep LAPIC state after receiving
INIT. The local APIC ID register should also be preserved.

Tracked-On: #4267

Signed-off-by: Victor Sun <victor.sun@intel.com>
Reviewed-by: Jason Chen CJ <jason.cj.chen@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
This commit is contained in:
Victor Sun
2019-12-25 16:26:11 +08:00
committed by wenlingz
parent ab13228591
commit c6f7803f06
3 changed files with 29 additions and 12 deletions
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3
hypervisor/include/arch/x86/guest/vlapic.h
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@@ -106,6 +106,7 @@ struct acrn_apicv_ops {
bool (*x2apic_write_msr_may_valid)(uint32_t offset);
};
enum reset_mode;
extern const struct acrn_apicv_ops *apicv_ops;
void vlapic_set_apicv_ops(void);
@@ -194,7 +195,7 @@ void vlapic_free(struct acrn_vcpu *vcpu);
* @pre vlapic->vcpu->vcpu_id < MAX_VCPUS_PER_VM
*/
void vlapic_init(struct acrn_vlapic *vlapic);
void vlapic_reset(struct acrn_vlapic *vlapic, const struct acrn_apicv_ops *ops);
void vlapic_reset(struct acrn_vlapic *vlapic, const struct acrn_apicv_ops *ops, enum reset_mode mode);
void vlapic_restore(struct acrn_vlapic *vlapic, const struct lapic_regs *regs);
uint64_t vlapic_apicv_get_apic_access_addr(void);
uint64_t vlapic_apicv_get_apic_page_addr(struct acrn_vlapic *vlapic);