mirror of https://gitee.com/openkylin/qemu.git
84 lines
2.5 KiB
C
84 lines
2.5 KiB
C
/*
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* QEMU monitor.c for ARM.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "qemu/osdep.h"
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#include "qmp-commands.h"
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#include "hw/boards.h"
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#include "kvm_arm.h"
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static GICCapability *gic_cap_new(int version)
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{
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GICCapability *cap = g_new0(GICCapability, 1);
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cap->version = version;
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/* by default, support none */
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cap->emulated = false;
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cap->kernel = false;
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return cap;
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}
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static GICCapabilityList *gic_cap_list_add(GICCapabilityList *head,
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GICCapability *cap)
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{
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GICCapabilityList *item = g_new0(GICCapabilityList, 1);
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item->value = cap;
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item->next = head;
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return item;
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}
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static inline void gic_cap_kvm_probe(GICCapability *v2, GICCapability *v3)
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{
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#ifdef CONFIG_KVM
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int fdarray[3];
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if (!kvm_arm_create_scratch_host_vcpu(NULL, fdarray, NULL)) {
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return;
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}
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/* Test KVM GICv2 */
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if (kvm_device_supported(fdarray[1], KVM_DEV_TYPE_ARM_VGIC_V2)) {
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v2->kernel = true;
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}
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/* Test KVM GICv3 */
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if (kvm_device_supported(fdarray[1], KVM_DEV_TYPE_ARM_VGIC_V3)) {
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v3->kernel = true;
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}
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kvm_arm_destroy_scratch_host_vcpu(fdarray);
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#endif
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}
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GICCapabilityList *qmp_query_gic_capabilities(Error **errp)
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{
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GICCapabilityList *head = NULL;
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GICCapability *v2 = gic_cap_new(2), *v3 = gic_cap_new(3);
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v2->emulated = true;
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v3->emulated = true;
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gic_cap_kvm_probe(v2, v3);
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head = gic_cap_list_add(head, v2);
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head = gic_cap_list_add(head, v3);
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return head;
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}
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