1c3617f72036c909e1f6086b5b9e364e0ef90a6daDavid Howells/* 2c3617f72036c909e1f6086b5b9e364e0ef90a6daDavid Howells * This program is free software; you can redistribute it and/or modify 3c3617f72036c909e1f6086b5b9e364e0ef90a6daDavid Howells * it under the terms of the GNU General Public License, version 2, as 4c3617f72036c909e1f6086b5b9e364e0ef90a6daDavid Howells * published by the Free Software Foundation. 5c3617f72036c909e1f6086b5b9e364e0ef90a6daDavid Howells * 6c3617f72036c909e1f6086b5b9e364e0ef90a6daDavid Howells * This program is distributed in the hope that it will be useful, 7c3617f72036c909e1f6086b5b9e364e0ef90a6daDavid Howells * but WITHOUT ANY WARRANTY; without even the implied warranty of 8c3617f72036c909e1f6086b5b9e364e0ef90a6daDavid Howells * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 9c3617f72036c909e1f6086b5b9e364e0ef90a6daDavid Howells * GNU General Public License for more details. 10c3617f72036c909e1f6086b5b9e364e0ef90a6daDavid Howells * 11c3617f72036c909e1f6086b5b9e364e0ef90a6daDavid Howells * You should have received a copy of the GNU General Public License 12c3617f72036c909e1f6086b5b9e364e0ef90a6daDavid Howells * along with this program; if not, write to the Free Software 13c3617f72036c909e1f6086b5b9e364e0ef90a6daDavid Howells * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. 14c3617f72036c909e1f6086b5b9e364e0ef90a6daDavid Howells * 15c3617f72036c909e1f6086b5b9e364e0ef90a6daDavid Howells * Copyright IBM Corp. 2008 16c3617f72036c909e1f6086b5b9e364e0ef90a6daDavid Howells * 17c3617f72036c909e1f6086b5b9e364e0ef90a6daDavid Howells * Authors: Hollis Blanchard <hollisb@us.ibm.com> 18c3617f72036c909e1f6086b5b9e364e0ef90a6daDavid Howells */ 19c3617f72036c909e1f6086b5b9e364e0ef90a6daDavid Howells 20c3617f72036c909e1f6086b5b9e364e0ef90a6daDavid Howells#ifndef _UAPI__POWERPC_KVM_PARA_H__ 21c3617f72036c909e1f6086b5b9e364e0ef90a6daDavid Howells#define _UAPI__POWERPC_KVM_PARA_H__ 22c3617f72036c909e1f6086b5b9e364e0ef90a6daDavid Howells 23c3617f72036c909e1f6086b5b9e364e0ef90a6daDavid Howells#include <linux/types.h> 24c3617f72036c909e1f6086b5b9e364e0ef90a6daDavid Howells 25c3617f72036c909e1f6086b5b9e364e0ef90a6daDavid Howells/* 26c3617f72036c909e1f6086b5b9e364e0ef90a6daDavid Howells * Additions to this struct must only occur at the end, and should be 27c3617f72036c909e1f6086b5b9e364e0ef90a6daDavid Howells * accompanied by a KVM_MAGIC_FEAT flag to advertise that they are present 28c3617f72036c909e1f6086b5b9e364e0ef90a6daDavid Howells * (albeit not necessarily relevant to the current target hardware platform). 29c3617f72036c909e1f6086b5b9e364e0ef90a6daDavid Howells * 30c3617f72036c909e1f6086b5b9e364e0ef90a6daDavid Howells * Struct fields are always 32 or 64 bit aligned, depending on them being 32 31c3617f72036c909e1f6086b5b9e364e0ef90a6daDavid Howells * or 64 bit wide respectively. 32c3617f72036c909e1f6086b5b9e364e0ef90a6daDavid Howells * 33c3617f72036c909e1f6086b5b9e364e0ef90a6daDavid Howells * See Documentation/virtual/kvm/ppc-pv.txt 34c3617f72036c909e1f6086b5b9e364e0ef90a6daDavid Howells */ 35c3617f72036c909e1f6086b5b9e364e0ef90a6daDavid Howellsstruct kvm_vcpu_arch_shared { 36c3617f72036c909e1f6086b5b9e364e0ef90a6daDavid Howells __u64 scratch1; 37c3617f72036c909e1f6086b5b9e364e0ef90a6daDavid Howells __u64 scratch2; 38c3617f72036c909e1f6086b5b9e364e0ef90a6daDavid Howells __u64 scratch3; 39c3617f72036c909e1f6086b5b9e364e0ef90a6daDavid Howells __u64 critical; /* Guest may not get interrupts if == r1 */ 40c3617f72036c909e1f6086b5b9e364e0ef90a6daDavid Howells __u64 sprg0; 41c3617f72036c909e1f6086b5b9e364e0ef90a6daDavid Howells __u64 sprg1; 42c3617f72036c909e1f6086b5b9e364e0ef90a6daDavid Howells __u64 sprg2; 43c3617f72036c909e1f6086b5b9e364e0ef90a6daDavid Howells __u64 sprg3; 44c3617f72036c909e1f6086b5b9e364e0ef90a6daDavid Howells __u64 srr0; 45c3617f72036c909e1f6086b5b9e364e0ef90a6daDavid Howells __u64 srr1; 46c3617f72036c909e1f6086b5b9e364e0ef90a6daDavid Howells __u64 dar; /* dear on BookE */ 47c3617f72036c909e1f6086b5b9e364e0ef90a6daDavid Howells __u64 msr; 48c3617f72036c909e1f6086b5b9e364e0ef90a6daDavid Howells __u32 dsisr; 49c3617f72036c909e1f6086b5b9e364e0ef90a6daDavid Howells __u32 int_pending; /* Tells the guest if we have an interrupt */ 50c3617f72036c909e1f6086b5b9e364e0ef90a6daDavid Howells __u32 sr[16]; 51c3617f72036c909e1f6086b5b9e364e0ef90a6daDavid Howells __u32 mas0; 52c3617f72036c909e1f6086b5b9e364e0ef90a6daDavid Howells __u32 mas1; 53c3617f72036c909e1f6086b5b9e364e0ef90a6daDavid Howells __u64 mas7_3; 54c3617f72036c909e1f6086b5b9e364e0ef90a6daDavid Howells __u64 mas2; 55c3617f72036c909e1f6086b5b9e364e0ef90a6daDavid Howells __u32 mas4; 56c3617f72036c909e1f6086b5b9e364e0ef90a6daDavid Howells __u32 mas6; 57c3617f72036c909e1f6086b5b9e364e0ef90a6daDavid Howells __u32 esr; 58c3617f72036c909e1f6086b5b9e364e0ef90a6daDavid Howells __u32 pir; 59c3617f72036c909e1f6086b5b9e364e0ef90a6daDavid Howells 60c3617f72036c909e1f6086b5b9e364e0ef90a6daDavid Howells /* 61c3617f72036c909e1f6086b5b9e364e0ef90a6daDavid Howells * SPRG4-7 are user-readable, so we can only keep these consistent 62c3617f72036c909e1f6086b5b9e364e0ef90a6daDavid Howells * between the shared area and the real registers when there's an 63c3617f72036c909e1f6086b5b9e364e0ef90a6daDavid Howells * intervening exit to KVM. This also applies to SPRG3 on some 64c3617f72036c909e1f6086b5b9e364e0ef90a6daDavid Howells * chips. 65c3617f72036c909e1f6086b5b9e364e0ef90a6daDavid Howells * 66c3617f72036c909e1f6086b5b9e364e0ef90a6daDavid Howells * This suffices for access by guest userspace, since in PR-mode 67c3617f72036c909e1f6086b5b9e364e0ef90a6daDavid Howells * KVM, an exit must occur when changing the guest's MSR[PR]. 68c3617f72036c909e1f6086b5b9e364e0ef90a6daDavid Howells * If the guest kernel writes to SPRG3-7 via the shared area, it 69c3617f72036c909e1f6086b5b9e364e0ef90a6daDavid Howells * must also use the shared area for reading while in kernel space. 70c3617f72036c909e1f6086b5b9e364e0ef90a6daDavid Howells */ 71c3617f72036c909e1f6086b5b9e364e0ef90a6daDavid Howells __u64 sprg4; 72c3617f72036c909e1f6086b5b9e364e0ef90a6daDavid Howells __u64 sprg5; 73c3617f72036c909e1f6086b5b9e364e0ef90a6daDavid Howells __u64 sprg6; 74c3617f72036c909e1f6086b5b9e364e0ef90a6daDavid Howells __u64 sprg7; 75c3617f72036c909e1f6086b5b9e364e0ef90a6daDavid Howells}; 76c3617f72036c909e1f6086b5b9e364e0ef90a6daDavid Howells 77c3617f72036c909e1f6086b5b9e364e0ef90a6daDavid Howells#define KVM_SC_MAGIC_R0 0x4b564d21 /* "KVM!" */ 7819bf7f8ac3f8131100027281c495dbbe00cd5ae0Marcelo Tosatti 7919bf7f8ac3f8131100027281c495dbbe00cd5ae0Marcelo Tosatti#define KVM_HCALL_TOKEN(num) _EV_HCALL_TOKEN(EV_KVM_VENDOR_ID, num) 8019bf7f8ac3f8131100027281c495dbbe00cd5ae0Marcelo Tosatti 811509ae56cdc19a12f76000e31602e4119fffc571Bharat Bhushan#include <asm/epapr_hcalls.h> 82c3617f72036c909e1f6086b5b9e364e0ef90a6daDavid Howells 83c3617f72036c909e1f6086b5b9e364e0ef90a6daDavid Howells#define KVM_FEATURE_MAGIC_PAGE 1 84c3617f72036c909e1f6086b5b9e364e0ef90a6daDavid Howells 85f3383cf80e417e86fcc84a2eb4c96bc52842d8d9Alexander Graf/* Magic page flags from host to guest */ 86f3383cf80e417e86fcc84a2eb4c96bc52842d8d9Alexander Graf 87c3617f72036c909e1f6086b5b9e364e0ef90a6daDavid Howells#define KVM_MAGIC_FEAT_SR (1 << 0) 88c3617f72036c909e1f6086b5b9e364e0ef90a6daDavid Howells 89c3617f72036c909e1f6086b5b9e364e0ef90a6daDavid Howells/* MASn, ESR, PIR, and high SPRGs */ 90c3617f72036c909e1f6086b5b9e364e0ef90a6daDavid Howells#define KVM_MAGIC_FEAT_MAS0_TO_SPRG7 (1 << 1) 91c3617f72036c909e1f6086b5b9e364e0ef90a6daDavid Howells 92f3383cf80e417e86fcc84a2eb4c96bc52842d8d9Alexander Graf/* Magic page flags from guest to host */ 93f3383cf80e417e86fcc84a2eb4c96bc52842d8d9Alexander Graf 94f3383cf80e417e86fcc84a2eb4c96bc52842d8d9Alexander Graf#define MAGIC_PAGE_FLAG_NOT_MAPPED_NX (1 << 0) 95f3383cf80e417e86fcc84a2eb4c96bc52842d8d9Alexander Graf 96c3617f72036c909e1f6086b5b9e364e0ef90a6daDavid Howells 97c3617f72036c909e1f6086b5b9e364e0ef90a6daDavid Howells#endif /* _UAPI__POWERPC_KVM_PARA_H__ */ 98