HV: hypercall: make hypercall functions return int32_t
The error code in the hypervisor is 32-bit signed integers. To reduce implicit conversions, this patch make hcall_xxx returns int32_t, and finally converts it to uint64_t when assigned to rax whose semantics is properly defined in C99. Signed-off-by: Junjie Mao <junjie.mao@intel.com> Acked-by: Eddie Dong <eddie.dong@intel.com>
This commit is contained in:
Junjie Mao
lijinxia
parent
ad73bb511c
commit
1a1ee93656
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@ -14,7 +14,7 @@
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*/
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int vmcall_vmexit_handler(struct vcpu *vcpu)
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{
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int64_t ret = -EACCES;
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int32_t ret = -EACCES;
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struct vm *vm = vcpu->vm;
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struct run_context *cur_context =
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&vcpu->arch_vcpu.contexts[vcpu->arch_vcpu.cur_context];
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@ -25,7 +25,7 @@ bool is_hypercall_from_ring0(void)
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return false;
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}
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int64_t hcall_get_api_version(struct vm *vm, uint64_t param)
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int32_t hcall_get_api_version(struct vm *vm, uint64_t param)
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{
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struct hc_api_version version;
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@ -44,7 +44,8 @@ int64_t hcall_get_api_version(struct vm *vm, uint64_t param)
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return 0;
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}
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static int handle_vpic_irqline(struct vm *vm, uint32_t irq, enum irq_mode mode)
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static int32_t
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handle_vpic_irqline(struct vm *vm, uint32_t irq, enum irq_mode mode)
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{
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int32_t ret = -1;
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@ -68,7 +69,7 @@ static int handle_vpic_irqline(struct vm *vm, uint32_t irq, enum irq_mode mode)
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return ret;
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}
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static int
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static int32_t
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handle_vioapic_irqline(struct vm *vm, uint32_t irq, enum irq_mode mode)
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{
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int32_t ret = -1;
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@ -93,7 +94,8 @@ handle_vioapic_irqline(struct vm *vm, uint32_t irq, enum irq_mode mode)
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return ret;
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}
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static int handle_virt_irqline(struct vm *vm, uint16_t target_vmid,
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static int32_t
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handle_virt_irqline(struct vm *vm, uint16_t target_vmid,
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struct acrn_irqline *param, enum irq_mode mode)
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{
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int32_t ret = 0;
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@ -131,9 +133,9 @@ static int handle_virt_irqline(struct vm *vm, uint16_t target_vmid,
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return ret;
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}
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int64_t hcall_create_vm(struct vm *vm, uint64_t param)
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int32_t hcall_create_vm(struct vm *vm, uint64_t param)
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{
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int64_t ret = 0;
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int32_t ret = 0;
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struct vm *target_vm = NULL;
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/* VM are created from hv_main() directly
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* Here we just return the vmid for DM
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@ -170,9 +172,9 @@ int64_t hcall_create_vm(struct vm *vm, uint64_t param)
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return ret;
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}
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int64_t hcall_destroy_vm(uint64_t vmid)
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int32_t hcall_destroy_vm(uint64_t vmid)
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{
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int64_t ret = 0;
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int32_t ret = 0;
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struct vm *target_vm = get_vm_from_vmid(vmid);
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if (target_vm == NULL) {
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@ -183,9 +185,9 @@ int64_t hcall_destroy_vm(uint64_t vmid)
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return ret;
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}
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int64_t hcall_resume_vm(uint64_t vmid)
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int32_t hcall_resume_vm(uint64_t vmid)
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{
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int64_t ret = 0;
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int32_t ret = 0;
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struct vm *target_vm = get_vm_from_vmid(vmid);
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if (target_vm == NULL) {
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@ -200,7 +202,7 @@ int64_t hcall_resume_vm(uint64_t vmid)
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return ret;
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}
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int64_t hcall_pause_vm(uint64_t vmid)
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int32_t hcall_pause_vm(uint64_t vmid)
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{
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struct vm *target_vm = get_vm_from_vmid(vmid);
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@ -213,7 +215,7 @@ int64_t hcall_pause_vm(uint64_t vmid)
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return 0;
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}
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int64_t hcall_create_vcpu(struct vm *vm, uint64_t vmid, uint64_t param)
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int32_t hcall_create_vcpu(struct vm *vm, uint64_t vmid, uint64_t param)
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{
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int32_t ret;
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uint16_t pcpu_id;
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@ -240,9 +242,9 @@ int64_t hcall_create_vcpu(struct vm *vm, uint64_t vmid, uint64_t param)
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return ret;
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}
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int64_t hcall_assert_irqline(struct vm *vm, uint64_t vmid, uint64_t param)
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int32_t hcall_assert_irqline(struct vm *vm, uint64_t vmid, uint64_t param)
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{
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int64_t ret = 0;
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int32_t ret = 0;
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struct acrn_irqline irqline;
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if (copy_from_gpa(vm, &irqline, param, sizeof(irqline)) != 0) {
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@ -254,9 +256,9 @@ int64_t hcall_assert_irqline(struct vm *vm, uint64_t vmid, uint64_t param)
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return ret;
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}
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int64_t hcall_deassert_irqline(struct vm *vm, uint64_t vmid, uint64_t param)
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int32_t hcall_deassert_irqline(struct vm *vm, uint64_t vmid, uint64_t param)
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{
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int64_t ret = 0;
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int32_t ret = 0;
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struct acrn_irqline irqline;
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if (copy_from_gpa(vm, &irqline, param, sizeof(irqline)) != 0) {
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@ -268,9 +270,9 @@ int64_t hcall_deassert_irqline(struct vm *vm, uint64_t vmid, uint64_t param)
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return ret;
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}
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int64_t hcall_pulse_irqline(struct vm *vm, uint64_t vmid, uint64_t param)
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int32_t hcall_pulse_irqline(struct vm *vm, uint64_t vmid, uint64_t param)
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{
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int64_t ret = 0;
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int32_t ret = 0;
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struct acrn_irqline irqline;
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if (copy_from_gpa(vm, &irqline, param, sizeof(irqline)) != 0) {
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@ -282,7 +284,7 @@ int64_t hcall_pulse_irqline(struct vm *vm, uint64_t vmid, uint64_t param)
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return ret;
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}
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int64_t hcall_inject_msi(struct vm *vm, uint64_t vmid, uint64_t param)
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int32_t hcall_inject_msi(struct vm *vm, uint64_t vmid, uint64_t param)
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{
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int32_t ret = 0;
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struct acrn_msi_entry msi;
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@ -302,9 +304,9 @@ int64_t hcall_inject_msi(struct vm *vm, uint64_t vmid, uint64_t param)
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return ret;
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}
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int64_t hcall_set_ioreq_buffer(struct vm *vm, uint64_t vmid, uint64_t param)
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int32_t hcall_set_ioreq_buffer(struct vm *vm, uint64_t vmid, uint64_t param)
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{
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int64_t ret = 0;
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int32_t ret = 0;
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uint64_t hpa = 0UL;
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struct acrn_set_ioreq_buffer iobuf;
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struct vm *target_vm = get_vm_from_vmid(vmid);
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@ -368,7 +370,7 @@ static void complete_request(struct vcpu *vcpu)
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resume_vcpu(vcpu);
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}
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int64_t hcall_notify_req_finish(uint64_t vmid, uint64_t vcpu_id)
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int32_t hcall_notify_req_finish(uint64_t vmid, uint64_t vcpu_id)
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{
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union vhm_request_buffer *req_buf;
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struct vhm_request *req;
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@ -403,7 +405,8 @@ int64_t hcall_notify_req_finish(uint64_t vmid, uint64_t vcpu_id)
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return 0;
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}
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static int64_t _set_vm_memmap(struct vm *vm, struct vm *target_vm,
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static int32_t
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_set_vm_memmap(struct vm *vm, struct vm *target_vm,
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struct vm_set_memmap *memmap)
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{
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uint64_t hpa, base_paddr;
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@ -459,7 +462,7 @@ static int64_t _set_vm_memmap(struct vm *vm, struct vm *target_vm,
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memmap->remote_gpa, memmap->length, memmap->type, attr);
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}
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int64_t hcall_set_vm_memmap(struct vm *vm, uint64_t vmid, uint64_t param)
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int32_t hcall_set_vm_memmap(struct vm *vm, uint64_t vmid, uint64_t param)
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{
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struct vm_set_memmap memmap;
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struct vm *target_vm = get_vm_from_vmid(vmid);
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@ -488,7 +491,7 @@ int64_t hcall_set_vm_memmap(struct vm *vm, uint64_t vmid, uint64_t param)
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return _set_vm_memmap(vm, target_vm, &memmap);
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}
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int64_t hcall_set_vm_memmaps(struct vm *vm, uint64_t param)
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int32_t hcall_set_vm_memmaps(struct vm *vm, uint64_t param)
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{
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struct set_memmaps set_memmaps;
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struct memory_map *regions;
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@ -531,9 +534,9 @@ int64_t hcall_set_vm_memmaps(struct vm *vm, uint64_t param)
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return 0;
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}
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int64_t hcall_remap_pci_msix(struct vm *vm, uint64_t vmid, uint64_t param)
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int32_t hcall_remap_pci_msix(struct vm *vm, uint64_t vmid, uint64_t param)
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{
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int64_t ret = 0;
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int32_t ret = 0;
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struct acrn_vm_pci_msix_remap remap;
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struct ptdev_msi_info info;
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struct vm *target_vm = get_vm_from_vmid(vmid);
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@ -572,9 +575,9 @@ int64_t hcall_remap_pci_msix(struct vm *vm, uint64_t vmid, uint64_t param)
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return ret;
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}
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int64_t hcall_gpa_to_hpa(struct vm *vm, uint64_t vmid, uint64_t param)
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int32_t hcall_gpa_to_hpa(struct vm *vm, uint64_t vmid, uint64_t param)
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{
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int64_t ret = 0;
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int32_t ret = 0;
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struct vm_gpa2hpa v_gpa2hpa;
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struct vm *target_vm = get_vm_from_vmid(vmid);
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@ -597,9 +600,9 @@ int64_t hcall_gpa_to_hpa(struct vm *vm, uint64_t vmid, uint64_t param)
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return ret;
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}
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int64_t hcall_assign_ptdev(struct vm *vm, uint64_t vmid, uint64_t param)
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int32_t hcall_assign_ptdev(struct vm *vm, uint64_t vmid, uint64_t param)
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{
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int64_t ret;
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int32_t ret;
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uint16_t bdf;
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struct vm *target_vm = get_vm_from_vmid(vmid);
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@ -635,9 +638,9 @@ int64_t hcall_assign_ptdev(struct vm *vm, uint64_t vmid, uint64_t param)
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return ret;
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}
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int64_t hcall_deassign_ptdev(struct vm *vm, uint64_t vmid, uint64_t param)
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int32_t hcall_deassign_ptdev(struct vm *vm, uint64_t vmid, uint64_t param)
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{
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int64_t ret = 0;
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int32_t ret = 0;
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uint16_t bdf;
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struct vm *target_vm = get_vm_from_vmid(vmid);
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@ -655,9 +658,9 @@ int64_t hcall_deassign_ptdev(struct vm *vm, uint64_t vmid, uint64_t param)
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return ret;
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}
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int64_t hcall_set_ptdev_intr_info(struct vm *vm, uint64_t vmid, uint64_t param)
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int32_t hcall_set_ptdev_intr_info(struct vm *vm, uint64_t vmid, uint64_t param)
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{
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int64_t ret = 0;
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int32_t ret = 0;
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struct hc_ptdev_irq irq;
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struct vm *target_vm = get_vm_from_vmid(vmid);
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@ -689,10 +692,10 @@ int64_t hcall_set_ptdev_intr_info(struct vm *vm, uint64_t vmid, uint64_t param)
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return ret;
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}
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int64_t
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int32_t
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hcall_reset_ptdev_intr_info(struct vm *vm, uint64_t vmid, uint64_t param)
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{
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int64_t ret = 0;
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int32_t ret = 0;
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struct hc_ptdev_irq irq;
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struct vm *target_vm = get_vm_from_vmid(vmid);
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@ -723,7 +726,7 @@ hcall_reset_ptdev_intr_info(struct vm *vm, uint64_t vmid, uint64_t param)
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return ret;
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}
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int64_t hcall_setup_sbuf(struct vm *vm, uint64_t param)
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int32_t hcall_setup_sbuf(struct vm *vm, uint64_t param)
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{
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struct sbuf_setup_param ssp;
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uint64_t *hva;
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@ -744,7 +747,7 @@ int64_t hcall_setup_sbuf(struct vm *vm, uint64_t param)
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return sbuf_share_setup(ssp.pcpu_id, ssp.sbuf_id, hva);
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}
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int64_t hcall_get_cpu_pm_state(struct vm *vm, uint64_t cmd, uint64_t param)
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int32_t hcall_get_cpu_pm_state(struct vm *vm, uint64_t cmd, uint64_t param)
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{
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uint16_t target_vm_id;
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struct vm *target_vm;
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@ -10,7 +10,7 @@
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/* this hcall is only come from trusty enabled vcpu itself, and cannot be
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* called from other vcpus
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*/
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int64_t hcall_world_switch(struct vcpu *vcpu)
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int32_t hcall_world_switch(struct vcpu *vcpu)
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{
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int32_t next_world_id = !(vcpu->arch_vcpu.cur_context);
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@ -37,7 +37,7 @@ int64_t hcall_world_switch(struct vcpu *vcpu)
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/* this hcall is only come from trusty enabled vcpu itself, and cannot be
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* called from other vcpus
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*/
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int64_t hcall_initialize_trusty(struct vcpu *vcpu, uint64_t param)
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int32_t hcall_initialize_trusty(struct vcpu *vcpu, uint64_t param)
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{
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if (!vcpu->vm->sworld_control.sworld_enabled) {
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pr_err("%s, Secure World is not enabled!\n", __func__);
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@ -35,7 +35,7 @@ bool is_hypercall_from_ring0(void);
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*
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* @return 0 on success, non-zero on error.
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*/
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int64_t hcall_get_api_version(struct vm *vm, uint64_t param);
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int32_t hcall_get_api_version(struct vm *vm, uint64_t param);
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/**
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* @brief create virtual machine
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@ -50,7 +50,7 @@ int64_t hcall_get_api_version(struct vm *vm, uint64_t param);
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*
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* @return 0 on success, non-zero on error.
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*/
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int64_t hcall_create_vm(struct vm *vm, uint64_t param);
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int32_t hcall_create_vm(struct vm *vm, uint64_t param);
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/**
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* @brief destroy virtual machine
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@ -62,7 +62,7 @@ int64_t hcall_create_vm(struct vm *vm, uint64_t param);
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*
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* @return 0 on success, non-zero on error.
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*/
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int64_t hcall_destroy_vm(uint64_t vmid);
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int32_t hcall_destroy_vm(uint64_t vmid);
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/**
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* @brief resume virtual machine
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@ -75,7 +75,7 @@ int64_t hcall_destroy_vm(uint64_t vmid);
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*
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* @return 0 on success, non-zero on error.
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*/
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int64_t hcall_resume_vm(uint64_t vmid);
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int32_t hcall_resume_vm(uint64_t vmid);
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/**
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* @brief pause virtual machine
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@ -88,7 +88,7 @@ int64_t hcall_resume_vm(uint64_t vmid);
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*
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* @return 0 on success, non-zero on error.
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*/
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int64_t hcall_pause_vm(uint64_t vmid);
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int32_t hcall_pause_vm(uint64_t vmid);
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/**
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* @brief create vcpu
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@ -104,7 +104,7 @@ int64_t hcall_pause_vm(uint64_t vmid);
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*
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* @return 0 on success, non-zero on error.
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*/
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int64_t hcall_create_vcpu(struct vm *vm, uint64_t vmid, uint64_t param);
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int32_t hcall_create_vcpu(struct vm *vm, uint64_t vmid, uint64_t param);
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/**
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* @brief assert IRQ line
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@ -119,7 +119,7 @@ int64_t hcall_create_vcpu(struct vm *vm, uint64_t vmid, uint64_t param);
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*
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* @return 0 on success, non-zero on error.
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*/
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int64_t hcall_assert_irqline(struct vm *vm, uint64_t vmid, uint64_t param);
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int32_t hcall_assert_irqline(struct vm *vm, uint64_t vmid, uint64_t param);
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/**
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* @brief deassert IRQ line
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@ -134,7 +134,7 @@ int64_t hcall_assert_irqline(struct vm *vm, uint64_t vmid, uint64_t param);
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*
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* @return 0 on success, non-zero on error.
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*/
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int64_t hcall_deassert_irqline(struct vm *vm, uint64_t vmid, uint64_t param);
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int32_t hcall_deassert_irqline(struct vm *vm, uint64_t vmid, uint64_t param);
|
||||
|
||||
/**
|
||||
* @brief trigger a pulse on IRQ line
|
||||
|
|
@ -149,7 +149,7 @@ int64_t hcall_deassert_irqline(struct vm *vm, uint64_t vmid, uint64_t param);
|
|||
*
|
||||
* @return 0 on success, non-zero on error.
|
||||
*/
|
||||
int64_t hcall_pulse_irqline(struct vm *vm, uint64_t vmid, uint64_t param);
|
||||
int32_t hcall_pulse_irqline(struct vm *vm, uint64_t vmid, uint64_t param);
|
||||
|
||||
/**
|
||||
* @brief inject MSI interrupt
|
||||
|
|
@ -163,7 +163,7 @@ int64_t hcall_pulse_irqline(struct vm *vm, uint64_t vmid, uint64_t param);
|
|||
*
|
||||
* @return 0 on success, non-zero on error.
|
||||
*/
|
||||
int64_t hcall_inject_msi(struct vm *vm, uint64_t vmid, uint64_t param);
|
||||
int32_t hcall_inject_msi(struct vm *vm, uint64_t vmid, uint64_t param);
|
||||
|
||||
/**
|
||||
* @brief set ioreq shared buffer
|
||||
|
|
@ -178,7 +178,7 @@ int64_t hcall_inject_msi(struct vm *vm, uint64_t vmid, uint64_t param);
|
|||
*
|
||||
* @return 0 on success, non-zero on error.
|
||||
*/
|
||||
int64_t hcall_set_ioreq_buffer(struct vm *vm, uint64_t vmid, uint64_t param);
|
||||
int32_t hcall_set_ioreq_buffer(struct vm *vm, uint64_t vmid, uint64_t param);
|
||||
|
||||
/**
|
||||
* @brief notify request done
|
||||
|
|
@ -191,7 +191,7 @@ int64_t hcall_set_ioreq_buffer(struct vm *vm, uint64_t vmid, uint64_t param);
|
|||
*
|
||||
* @return 0 on success, non-zero on error.
|
||||
*/
|
||||
int64_t hcall_notify_req_finish(uint64_t vmid, uint64_t param);
|
||||
int32_t hcall_notify_req_finish(uint64_t vmid, uint64_t param);
|
||||
|
||||
/**
|
||||
* @brief setup ept memory mapping
|
||||
|
|
@ -206,7 +206,7 @@ int64_t hcall_notify_req_finish(uint64_t vmid, uint64_t param);
|
|||
*
|
||||
* @return 0 on success, non-zero on error.
|
||||
*/
|
||||
int64_t hcall_set_vm_memmap(struct vm *vm, uint64_t vmid, uint64_t param);
|
||||
int32_t hcall_set_vm_memmap(struct vm *vm, uint64_t vmid, uint64_t param);
|
||||
|
||||
/**
|
||||
* @brief setup ept memory mapping for multi regions
|
||||
|
|
@ -217,7 +217,7 @@ int64_t hcall_set_vm_memmap(struct vm *vm, uint64_t vmid, uint64_t param);
|
|||
*
|
||||
* @return 0 on success, non-zero on error.
|
||||
*/
|
||||
int64_t hcall_set_vm_memmaps(struct vm *vm, uint64_t param);
|
||||
int32_t hcall_set_vm_memmaps(struct vm *vm, uint64_t param);
|
||||
|
||||
/**
|
||||
* @brief remap PCI MSI interrupt
|
||||
|
|
@ -232,7 +232,7 @@ int64_t hcall_set_vm_memmaps(struct vm *vm, uint64_t param);
|
|||
*
|
||||
* @return 0 on success, non-zero on error.
|
||||
*/
|
||||
int64_t hcall_remap_pci_msix(struct vm *vm, uint64_t vmid, uint64_t param);
|
||||
int32_t hcall_remap_pci_msix(struct vm *vm, uint64_t vmid, uint64_t param);
|
||||
|
||||
/**
|
||||
* @brief translate guest physical address to host physical address
|
||||
|
|
@ -246,7 +246,7 @@ int64_t hcall_remap_pci_msix(struct vm *vm, uint64_t vmid, uint64_t param);
|
|||
*
|
||||
* @return 0 on success, non-zero on error.
|
||||
*/
|
||||
int64_t hcall_gpa_to_hpa(struct vm *vm, uint64_t vmid, uint64_t param);
|
||||
int32_t hcall_gpa_to_hpa(struct vm *vm, uint64_t vmid, uint64_t param);
|
||||
|
||||
/**
|
||||
* @brief Assign one passthrough dev to VM.
|
||||
|
|
@ -258,7 +258,7 @@ int64_t hcall_gpa_to_hpa(struct vm *vm, uint64_t vmid, uint64_t param);
|
|||
*
|
||||
* @return 0 on success, non-zero on error.
|
||||
*/
|
||||
int64_t hcall_assign_ptdev(struct vm *vm, uint64_t vmid, uint64_t param);
|
||||
int32_t hcall_assign_ptdev(struct vm *vm, uint64_t vmid, uint64_t param);
|
||||
|
||||
/**
|
||||
* @brief Deassign one passthrough dev from VM.
|
||||
|
|
@ -270,7 +270,7 @@ int64_t hcall_assign_ptdev(struct vm *vm, uint64_t vmid, uint64_t param);
|
|||
*
|
||||
* @return 0 on success, non-zero on error.
|
||||
*/
|
||||
int64_t hcall_deassign_ptdev(struct vm *vm, uint64_t vmid, uint64_t param);
|
||||
int32_t hcall_deassign_ptdev(struct vm *vm, uint64_t vmid, uint64_t param);
|
||||
|
||||
/**
|
||||
* @brief Set interrupt mapping info of ptdev.
|
||||
|
|
@ -282,7 +282,7 @@ int64_t hcall_deassign_ptdev(struct vm *vm, uint64_t vmid, uint64_t param);
|
|||
*
|
||||
* @return 0 on success, non-zero on error.
|
||||
*/
|
||||
int64_t hcall_set_ptdev_intr_info(struct vm *vm, uint64_t vmid, uint64_t param);
|
||||
int32_t hcall_set_ptdev_intr_info(struct vm *vm, uint64_t vmid, uint64_t param);
|
||||
|
||||
/**
|
||||
* @brief Clear interrupt mapping info of ptdev.
|
||||
|
|
@ -294,7 +294,7 @@ int64_t hcall_set_ptdev_intr_info(struct vm *vm, uint64_t vmid, uint64_t param);
|
|||
*
|
||||
* @return 0 on success, non-zero on error.
|
||||
*/
|
||||
int64_t hcall_reset_ptdev_intr_info(struct vm *vm, uint64_t vmid,
|
||||
int32_t hcall_reset_ptdev_intr_info(struct vm *vm, uint64_t vmid,
|
||||
uint64_t param);
|
||||
|
||||
/**
|
||||
|
|
@ -306,7 +306,7 @@ int64_t hcall_reset_ptdev_intr_info(struct vm *vm, uint64_t vmid,
|
|||
*
|
||||
* @return 0 on success, non-zero on error.
|
||||
*/
|
||||
int64_t hcall_setup_sbuf(struct vm *vm, uint64_t param);
|
||||
int32_t hcall_setup_sbuf(struct vm *vm, uint64_t param);
|
||||
|
||||
/**
|
||||
* @brief Get VCPU Power state.
|
||||
|
|
@ -318,7 +318,7 @@ int64_t hcall_setup_sbuf(struct vm *vm, uint64_t param);
|
|||
* @return 0 on success, non-zero on error.
|
||||
*/
|
||||
|
||||
int64_t hcall_get_cpu_pm_state(struct vm *vm, uint64_t cmd, uint64_t param);
|
||||
int32_t hcall_get_cpu_pm_state(struct vm *vm, uint64_t cmd, uint64_t param);
|
||||
|
||||
/**
|
||||
* @defgroup trusty_hypercall Trusty Hypercalls
|
||||
|
|
@ -344,7 +344,7 @@ int64_t hcall_get_cpu_pm_state(struct vm *vm, uint64_t cmd, uint64_t param);
|
|||
* @return 0 on success, non-zero on error.
|
||||
*/
|
||||
|
||||
int64_t hcall_world_switch(struct vcpu *vcpu);
|
||||
int32_t hcall_world_switch(struct vcpu *vcpu);
|
||||
|
||||
/**
|
||||
* @brief Initialize environment for Trusty-OS on a vCPU.
|
||||
|
|
@ -360,7 +360,7 @@ int64_t hcall_world_switch(struct vcpu *vcpu);
|
|||
*
|
||||
* @return 0 on success, non-zero on error.
|
||||
*/
|
||||
int64_t hcall_initialize_trusty(struct vcpu *vcpu, uint64_t param);
|
||||
int32_t hcall_initialize_trusty(struct vcpu *vcpu, uint64_t param);
|
||||
|
||||
/**
|
||||
* @}
|
||||
|
|
|
|||
Loading…
Reference in New Issue