25 lines
802 B
C
25 lines
802 B
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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#ifndef _ASM_POWERPC_VPHN_H
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#define _ASM_POWERPC_VPHN_H
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/* The H_HOME_NODE_ASSOCIATIVITY h_call returns 6 64-bit registers. */
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#define VPHN_REGISTER_COUNT 6
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/*
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* 6 64-bit registers unpacked into up to 24 be32 associativity values. To
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* form the complete property we have to add the length in the first cell.
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*/
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#define VPHN_ASSOC_BUFSIZE (VPHN_REGISTER_COUNT*sizeof(u64)/sizeof(u16) + 1)
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/*
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* The H_HOME_NODE_ASSOCIATIVITY hcall takes two values for flags:
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* 1 for retrieving associativity information for a guest cpu
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* 2 for retrieving associativity information for a host/hypervisor cpu
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*/
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#define VPHN_FLAG_VCPU 1
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#define VPHN_FLAG_PCPU 2
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long hcall_vphn(unsigned long cpu, u64 flags, __be32 *associativity);
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#endif // _ASM_POWERPC_VPHN_H
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