1 /* 2 * This program is free software; you can redistribute it and/or modify 3 * it under the terms of the GNU General Public License, version 2, as 4 * published by the Free Software Foundation. 5 * 6 * This program is distributed in the hope that it will be useful, 7 * but WITHOUT ANY WARRANTY; without even the implied warranty of 8 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 9 * GNU General Public License for more details. 10 * 11 * You should have received a copy of the GNU General Public License 12 * along with this program; if not, write to the Free Software 13 * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. 14 * 15 * Copyright SUSE Linux Products GmbH 2010 16 * 17 * Authors: Alexander Graf <agraf@suse.de> 18 */ 19 20 #ifndef __ASM_KVM_BOOK3S_64_H__ 21 #define __ASM_KVM_BOOK3S_64_H__ 22 23 #ifdef CONFIG_KVM_BOOK3S_PR 24 static inline struct kvmppc_book3s_shadow_vcpu *to_svcpu(struct kvm_vcpu *vcpu) 25 { 26 return &get_paca()->shadow_vcpu; 27 } 28 #endif 29 30 #define SPAPR_TCE_SHIFT 12 31 32 static inline unsigned long compute_tlbie_rb(unsigned long v, unsigned long r, 33 unsigned long pte_index) 34 { 35 unsigned long rb, va_low; 36 37 rb = (v & ~0x7fUL) << 16; /* AVA field */ 38 va_low = pte_index >> 3; 39 if (v & HPTE_V_SECONDARY) 40 va_low = ~va_low; 41 /* xor vsid from AVA */ 42 if (!(v & HPTE_V_1TB_SEG)) 43 va_low ^= v >> 12; 44 else 45 va_low ^= v >> 24; 46 va_low &= 0x7ff; 47 if (v & HPTE_V_LARGE) { 48 rb |= 1; /* L field */ 49 if (cpu_has_feature(CPU_FTR_ARCH_206) && 50 (r & 0xff000)) { 51 /* non-16MB large page, must be 64k */ 52 /* (masks depend on page size) */ 53 rb |= 0x1000; /* page encoding in LP field */ 54 rb |= (va_low & 0x7f) << 16; /* 7b of VA in AVA/LP field */ 55 rb |= (va_low & 0xfe); /* AVAL field (P7 doesn't seem to care) */ 56 } 57 } else { 58 /* 4kB page */ 59 rb |= (va_low & 0x7ff) << 12; /* remaining 11b of VA */ 60 } 61 rb |= (v >> 54) & 0x300; /* B field */ 62 return rb; 63 } 64 65 #endif /* __ASM_KVM_BOOK3S_64_H__ */ 66