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https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
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63995653ad
This adds a wrapper function kvm_inject_realmode_interrupt() around the emulator function emulate_int_real() to allow real mode interrupt injection. [avi: initialize operand and address sizes before emulating interrupts] [avi: initialize rip for real mode interrupt injection] [avi: clear interrupt pending flag after emulating interrupt injection] Signed-off-by: Mohammed Gamal <m.gamal005@gmail.com> Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
80 lines
1.8 KiB
C
80 lines
1.8 KiB
C
#ifndef ARCH_X86_KVM_X86_H
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#define ARCH_X86_KVM_X86_H
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#include <linux/kvm_host.h>
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#include "kvm_cache_regs.h"
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static inline void kvm_clear_exception_queue(struct kvm_vcpu *vcpu)
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{
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vcpu->arch.exception.pending = false;
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}
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static inline void kvm_queue_interrupt(struct kvm_vcpu *vcpu, u8 vector,
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bool soft)
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{
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vcpu->arch.interrupt.pending = true;
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vcpu->arch.interrupt.soft = soft;
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vcpu->arch.interrupt.nr = vector;
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}
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static inline void kvm_clear_interrupt_queue(struct kvm_vcpu *vcpu)
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{
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vcpu->arch.interrupt.pending = false;
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}
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static inline bool kvm_event_needs_reinjection(struct kvm_vcpu *vcpu)
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{
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return vcpu->arch.exception.pending || vcpu->arch.interrupt.pending ||
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vcpu->arch.nmi_injected;
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}
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static inline bool kvm_exception_is_soft(unsigned int nr)
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{
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return (nr == BP_VECTOR) || (nr == OF_VECTOR);
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}
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struct kvm_cpuid_entry2 *kvm_find_cpuid_entry(struct kvm_vcpu *vcpu,
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u32 function, u32 index);
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static inline bool is_protmode(struct kvm_vcpu *vcpu)
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{
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return kvm_read_cr0_bits(vcpu, X86_CR0_PE);
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}
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static inline int is_long_mode(struct kvm_vcpu *vcpu)
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{
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#ifdef CONFIG_X86_64
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return vcpu->arch.efer & EFER_LMA;
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#else
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return 0;
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#endif
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}
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static inline bool mmu_is_nested(struct kvm_vcpu *vcpu)
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{
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return vcpu->arch.walk_mmu == &vcpu->arch.nested_mmu;
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}
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static inline int is_pae(struct kvm_vcpu *vcpu)
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{
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return kvm_read_cr4_bits(vcpu, X86_CR4_PAE);
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}
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static inline int is_pse(struct kvm_vcpu *vcpu)
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{
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return kvm_read_cr4_bits(vcpu, X86_CR4_PSE);
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}
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static inline int is_paging(struct kvm_vcpu *vcpu)
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{
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return kvm_read_cr0_bits(vcpu, X86_CR0_PG);
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}
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void kvm_before_handle_nmi(struct kvm_vcpu *vcpu);
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void kvm_after_handle_nmi(struct kvm_vcpu *vcpu);
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int kvm_inject_realmode_interrupt(struct kvm_vcpu *vcpu, int irq);
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void kvm_write_tsc(struct kvm_vcpu *vcpu, u64 data);
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#endif
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