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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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f85f6e7bc9
When sending a call-function IPI-many to vCPUs, yield if any of the IPI target vCPUs was preempted, we just select the first preempted target vCPU which we found since the state of target vCPUs can change underneath and to avoid race conditions. Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Radim Krčmář <rkrcmar@redhat.com> Cc: Liran Alon <liran.alon@oracle.com> Signed-off-by: Wanpeng Li <wanpengli@tencent.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
39 lines
983 B
C
39 lines
983 B
C
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
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#ifndef _UAPI__LINUX_KVM_PARA_H
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#define _UAPI__LINUX_KVM_PARA_H
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/*
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* This header file provides a method for making a hypercall to the host
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* Architectures should define:
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* - kvm_hypercall0, kvm_hypercall1...
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* - kvm_arch_para_features
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* - kvm_para_available
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*/
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/* Return values for hypercalls */
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#define KVM_ENOSYS 1000
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#define KVM_EFAULT EFAULT
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#define KVM_EINVAL EINVAL
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#define KVM_E2BIG E2BIG
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#define KVM_EPERM EPERM
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#define KVM_EOPNOTSUPP 95
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#define KVM_HC_VAPIC_POLL_IRQ 1
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#define KVM_HC_MMU_OP 2
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#define KVM_HC_FEATURES 3
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#define KVM_HC_PPC_MAP_MAGIC_PAGE 4
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#define KVM_HC_KICK_CPU 5
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#define KVM_HC_MIPS_GET_CLOCK_FREQ 6
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#define KVM_HC_MIPS_EXIT_VM 7
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#define KVM_HC_MIPS_CONSOLE_OUTPUT 8
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#define KVM_HC_CLOCK_PAIRING 9
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#define KVM_HC_SEND_IPI 10
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#define KVM_HC_SCHED_YIELD 11
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/*
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* hypercalls use architecture specific
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*/
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#include <asm/kvm_para.h>
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#endif /* _UAPI__LINUX_KVM_PARA_H */
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