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hv: add the support of vector remapping for pre-launched VMs

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For pre-launched VMs MSI/MSI-x configuration writes are not intercepted by ACRN.
It is pass-thru and interrupts land in ACRN and the guest vector is injected into
the VM's vLAPIC. With this patch, ACRN intercepts MSI/MSI-x config writes and take
the code path to remap interrupt vector/APIC ID as it does for SOS/UOS.

Tracked-On: #2879
Signed-off-by: Sainath Grandhi <sainath.grandhi@intel.com>
Reviewed-by: Eddie Dong <eddie.dong@intel.com>
This commit is contained in:
Sainath Grandhi
2019-04-02 22:51:32 -07:00
committed by Eddie Dong
parent c4ec7ac358
commit 5b795a3312
7 changed files with 235 additions and 160 deletions
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hypervisor/include/arch/x86/guest/vm.h
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@@ -211,6 +211,7 @@ void prepare_vm(uint16_t vm_id, struct acrn_vm_config *vm_config);
void launch_vms(uint16_t pcpu_id);
bool is_valid_vm(const struct acrn_vm *vm);
bool is_sos_vm(const struct acrn_vm *vm);
bool is_prelaunched_vm(const struct acrn_vm *vm);
uint16_t find_free_vm_id(void);
struct acrn_vm *get_vm_from_vmid(uint16_t vm_id);
struct acrn_vm *get_sos_vm(void);