projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 5fdbf976 MT |
1 | #ifndef ASM_KVM_CACHE_REGS_H |
| 2 | #define ASM_KVM_CACHE_REGS_H | |
| 3 | ||
| 4 | static inline unsigned long kvm_register_read(struct kvm_vcpu *vcpu, | |
| 5 | enum kvm_reg reg) | |
| 6 | { | |
| 7 | if (!test_bit(reg, (unsigned long *)&vcpu->arch.regs_avail)) | |
| 8 | kvm_x86_ops->cache_reg(vcpu, reg); | |
| 9 | ||
| 10 | return vcpu->arch.regs[reg]; | |
| 11 | } | |
| 12 | ||
| 13 | static inline void kvm_register_write(struct kvm_vcpu *vcpu, | |
| 14 | enum kvm_reg reg, | |
| 15 | unsigned long val) | |
| 16 | { | |
| 17 | vcpu->arch.regs[reg] = val; | |
| 18 | __set_bit(reg, (unsigned long *)&vcpu->arch.regs_dirty); | |
| 19 | __set_bit(reg, (unsigned long *)&vcpu->arch.regs_avail); | |
| 20 | } | |
| 21 | ||
| 22 | static inline unsigned long kvm_rip_read(struct kvm_vcpu *vcpu) | |
| 23 | { | |
| 24 | return kvm_register_read(vcpu, VCPU_REGS_RIP); | |
| 25 | } | |
| 26 | ||
| 27 | static inline void kvm_rip_write(struct kvm_vcpu *vcpu, unsigned long val) | |
| 28 | { | |
| 29 | kvm_register_write(vcpu, VCPU_REGS_RIP, val); | |
| 30 | } | |
| 31 | ||
| 6de4f3ad AK |
32 | static inline u64 kvm_pdptr_read(struct kvm_vcpu *vcpu, int index) |
| 33 | { | |
| 34 | if (!test_bit(VCPU_EXREG_PDPTR, | |
| 35 | (unsigned long *)&vcpu->arch.regs_avail)) | |
| 36 | kvm_x86_ops->cache_reg(vcpu, VCPU_EXREG_PDPTR); | |
| 37 | ||
| 38 | return vcpu->arch.pdptrs[index]; | |
| 39 | } | |
| 40 | ||
| 4d4ec087 AK |
41 | static inline ulong kvm_read_cr0_bits(struct kvm_vcpu *vcpu, ulong mask) |
| 42 | { | |
| e8467fda AK |
43 | if (mask & vcpu->arch.cr0_guest_owned_bits) |
| 44 | kvm_x86_ops->decache_cr0_guest_bits(vcpu); | |
| 4d4ec087 AK |
45 | return vcpu->arch.cr0 & mask; |
| 46 | } | |
| 47 | ||
| 48 | static inline ulong kvm_read_cr0(struct kvm_vcpu *vcpu) | |
| 49 | { | |
| 50 | return kvm_read_cr0_bits(vcpu, ~0UL); | |
| 51 | } | |
| 52 | ||
| fc78f519 AK |
53 | static inline ulong kvm_read_cr4_bits(struct kvm_vcpu *vcpu, ulong mask) |
| 54 | { | |
| 55 | if (mask & vcpu->arch.cr4_guest_owned_bits) | |
| 56 | kvm_x86_ops->decache_cr4_guest_bits(vcpu); | |
| 57 | return vcpu->arch.cr4 & mask; | |
| 58 | } | |
| 59 | ||
| 60 | static inline ulong kvm_read_cr4(struct kvm_vcpu *vcpu) | |
| 61 | { | |
| 62 | return kvm_read_cr4_bits(vcpu, ~0UL); | |
| 63 | } | |
| 64 | ||
| 5fdbf976 | 65 | #endif |