| /* |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License, version 2, as |
| * published by the Free Software Foundation. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
| * |
| * Copyright IBM Corp. 2008 |
| * |
| * Authors: Hollis Blanchard <hollisb@us.ibm.com> |
| */ |
| |
| #ifndef _UAPI__POWERPC_KVM_PARA_H__ |
| #define _UAPI__POWERPC_KVM_PARA_H__ |
| |
| #include <linux/types.h> |
| |
| /* |
| * Additions to this struct must only occur at the end, and should be |
| * accompanied by a KVM_MAGIC_FEAT flag to advertise that they are present |
| * (albeit not necessarily relevant to the current target hardware platform). |
| * |
| * Struct fields are always 32 or 64 bit aligned, depending on them being 32 |
| * or 64 bit wide respectively. |
| * |
| * See Documentation/virtual/kvm/ppc-pv.txt |
| */ |
| struct kvm_vcpu_arch_shared { |
| __u64 scratch1; |
| __u64 scratch2; |
| __u64 scratch3; |
| __u64 critical; /* Guest may not get interrupts if == r1 */ |
| __u64 sprg0; |
| __u64 sprg1; |
| __u64 sprg2; |
| __u64 sprg3; |
| __u64 srr0; |
| __u64 srr1; |
| __u64 dar; /* dear on BookE */ |
| __u64 msr; |
| __u32 dsisr; |
| __u32 int_pending; /* Tells the guest if we have an interrupt */ |
| __u32 sr[16]; |
| __u32 mas0; |
| __u32 mas1; |
| __u64 mas7_3; |
| __u64 mas2; |
| __u32 mas4; |
| __u32 mas6; |
| __u32 esr; |
| __u32 pir; |
| |
| /* |
| * SPRG4-7 are user-readable, so we can only keep these consistent |
| * between the shared area and the real registers when there's an |
| * intervening exit to KVM. This also applies to SPRG3 on some |
| * chips. |
| * |
| * This suffices for access by guest userspace, since in PR-mode |
| * KVM, an exit must occur when changing the guest's MSR[PR]. |
| * If the guest kernel writes to SPRG3-7 via the shared area, it |
| * must also use the shared area for reading while in kernel space. |
| */ |
| __u64 sprg4; |
| __u64 sprg5; |
| __u64 sprg6; |
| __u64 sprg7; |
| }; |
| |
| #define KVM_SC_MAGIC_R0 0x4b564d21 /* "KVM!" */ |
| |
| #define KVM_HCALL_TOKEN(num) _EV_HCALL_TOKEN(EV_KVM_VENDOR_ID, num) |
| |
| #include <uapi/asm/epapr_hcalls.h> |
| |
| #define KVM_FEATURE_MAGIC_PAGE 1 |
| |
| #define KVM_MAGIC_FEAT_SR (1 << 0) |
| |
| /* MASn, ESR, PIR, and high SPRGs */ |
| #define KVM_MAGIC_FEAT_MAS0_TO_SPRG7 (1 << 1) |
| |
| |
| #endif /* _UAPI__POWERPC_KVM_PARA_H__ */ |