19e2a9fb9d
Specify maximum possible APIC ID assigned for current VM session to KVM prior to the creation of vCPUs. By this setting, KVM can set up VM-scoped data structure indexed by the APIC ID, e.g. Posted-Interrupt Descriptor pointer table to support Intel IPI virtualization, with the most optimal memory footprint. It can be achieved by calling KVM_ENABLE_CAP for KVM_CAP_MAX_VCPU_ID capability once KVM has enabled it. Ignoring the return error if KVM doesn't support this capability yet. Signed-off-by: Zeng Guang <guang.zeng@intel.com> Acked-by: Peter Xu <peterx@redhat.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Message-Id: <20220825025246.26618-1-guang.zeng@intel.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
72 lines
1.9 KiB
C
72 lines
1.9 KiB
C
/*
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* QEMU KVM support -- x86 specific functions.
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*
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* Copyright (c) 2012 Linaro Limited
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*
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* This work is licensed under the terms of the GNU GPL, version 2 or later.
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* See the COPYING file in the top-level directory.
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*
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*/
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#ifndef QEMU_KVM_I386_H
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#define QEMU_KVM_I386_H
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#include "sysemu/kvm.h"
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#define kvm_apic_in_kernel() (kvm_irqchip_in_kernel())
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#ifdef CONFIG_KVM
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#define kvm_pit_in_kernel() \
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(kvm_irqchip_in_kernel() && !kvm_irqchip_is_split())
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#define kvm_pic_in_kernel() \
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(kvm_irqchip_in_kernel() && !kvm_irqchip_is_split())
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#define kvm_ioapic_in_kernel() \
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(kvm_irqchip_in_kernel() && !kvm_irqchip_is_split())
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#else
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#define kvm_pit_in_kernel() 0
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#define kvm_pic_in_kernel() 0
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#define kvm_ioapic_in_kernel() 0
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#endif /* CONFIG_KVM */
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bool kvm_has_smm(void);
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bool kvm_has_adjust_clock(void);
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bool kvm_has_adjust_clock_stable(void);
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bool kvm_has_exception_payload(void);
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void kvm_synchronize_all_tsc(void);
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void kvm_arch_reset_vcpu(X86CPU *cs);
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void kvm_arch_after_reset_vcpu(X86CPU *cpu);
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void kvm_arch_do_init_vcpu(X86CPU *cs);
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void kvm_put_apicbase(X86CPU *cpu, uint64_t value);
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bool kvm_enable_x2apic(void);
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bool kvm_has_x2apic_api(void);
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bool kvm_has_waitpkg(void);
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bool kvm_hv_vpindex_settable(void);
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bool kvm_hyperv_expand_features(X86CPU *cpu, Error **errp);
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uint64_t kvm_swizzle_msi_ext_dest_id(uint64_t address);
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bool kvm_enable_sgx_provisioning(KVMState *s);
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void kvm_request_xsave_components(X86CPU *cpu, uint64_t mask);
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typedef bool QEMURDMSRHandler(X86CPU *cpu, uint32_t msr, uint64_t *val);
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typedef bool QEMUWRMSRHandler(X86CPU *cpu, uint32_t msr, uint64_t val);
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typedef struct kvm_msr_handlers {
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uint32_t msr;
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QEMURDMSRHandler *rdmsr;
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QEMUWRMSRHandler *wrmsr;
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} KVMMSRHandlers;
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bool kvm_filter_msr(KVMState *s, uint32_t msr, QEMURDMSRHandler *rdmsr,
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QEMUWRMSRHandler *wrmsr);
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void kvm_set_max_apic_id(uint32_t max_apic_id);
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#endif
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