diff options
Diffstat (limited to 'ANDROID_3.4.5/arch/powerpc/include/asm/kvm_para.h')
| -rw-r--r-- | ANDROID_3.4.5/arch/powerpc/include/asm/kvm_para.h | 211 |
1 files changed, 0 insertions, 211 deletions
diff --git a/ANDROID_3.4.5/arch/powerpc/include/asm/kvm_para.h b/ANDROID_3.4.5/arch/powerpc/include/asm/kvm_para.h deleted file mode 100644 index 7b754e74..00000000 --- a/ANDROID_3.4.5/arch/powerpc/include/asm/kvm_para.h +++ /dev/null @@ -1,211 +0,0 @@ -/* - * 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 __POWERPC_KVM_PARA_H__ -#define __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 HC_VENDOR_KVM (42 << 16) -#define HC_EV_SUCCESS 0 -#define HC_EV_UNIMPLEMENTED 12 - -#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) - -#ifdef __KERNEL__ - -#ifdef CONFIG_KVM_GUEST - -#include <linux/of.h> - -static inline int kvm_para_available(void) -{ - struct device_node *hyper_node; - - hyper_node = of_find_node_by_path("/hypervisor"); - if (!hyper_node) - return 0; - - if (!of_device_is_compatible(hyper_node, "linux,kvm")) - return 0; - - return 1; -} - -extern unsigned long kvm_hypercall(unsigned long *in, - unsigned long *out, - unsigned long nr); - -#else - -static inline int kvm_para_available(void) -{ - return 0; -} - -static unsigned long kvm_hypercall(unsigned long *in, - unsigned long *out, - unsigned long nr) -{ - return HC_EV_UNIMPLEMENTED; -} - -#endif - -static inline long kvm_hypercall0_1(unsigned int nr, unsigned long *r2) -{ - unsigned long in[8]; - unsigned long out[8]; - unsigned long r; - - r = kvm_hypercall(in, out, nr | HC_VENDOR_KVM); - *r2 = out[0]; - - return r; -} - -static inline long kvm_hypercall0(unsigned int nr) -{ - unsigned long in[8]; - unsigned long out[8]; - - return kvm_hypercall(in, out, nr | HC_VENDOR_KVM); -} - -static inline long kvm_hypercall1(unsigned int nr, unsigned long p1) -{ - unsigned long in[8]; - unsigned long out[8]; - - in[0] = p1; - return kvm_hypercall(in, out, nr | HC_VENDOR_KVM); -} - -static inline long kvm_hypercall2(unsigned int nr, unsigned long p1, - unsigned long p2) -{ - unsigned long in[8]; - unsigned long out[8]; - - in[0] = p1; - in[1] = p2; - return kvm_hypercall(in, out, nr | HC_VENDOR_KVM); -} - -static inline long kvm_hypercall3(unsigned int nr, unsigned long p1, - unsigned long p2, unsigned long p3) -{ - unsigned long in[8]; - unsigned long out[8]; - - in[0] = p1; - in[1] = p2; - in[2] = p3; - return kvm_hypercall(in, out, nr | HC_VENDOR_KVM); -} - -static inline long kvm_hypercall4(unsigned int nr, unsigned long p1, - unsigned long p2, unsigned long p3, - unsigned long p4) -{ - unsigned long in[8]; - unsigned long out[8]; - - in[0] = p1; - in[1] = p2; - in[2] = p3; - in[3] = p4; - return kvm_hypercall(in, out, nr | HC_VENDOR_KVM); -} - - -static inline unsigned int kvm_arch_para_features(void) -{ - unsigned long r; - - if (!kvm_para_available()) - return 0; - - if(kvm_hypercall0_1(KVM_HC_FEATURES, &r)) - return 0; - - return r; -} - -#endif /* __KERNEL__ */ - -#endif /* __POWERPC_KVM_PARA_H__ */ |