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Diffstat (limited to 'include/asm-x86/kvm_para.h')
-rw-r--r--include/asm-x86/kvm_para.h147
1 files changed, 0 insertions, 147 deletions
diff --git a/include/asm-x86/kvm_para.h b/include/asm-x86/kvm_para.h
deleted file mode 100644
index 30054fded4f..00000000000
--- a/include/asm-x86/kvm_para.h
+++ /dev/null
@@ -1,147 +0,0 @@
-#ifndef ASM_X86__KVM_PARA_H
-#define ASM_X86__KVM_PARA_H
-
-/* This CPUID returns the signature 'KVMKVMKVM' in ebx, ecx, and edx. It
- * should be used to determine that a VM is running under KVM.
- */
-#define KVM_CPUID_SIGNATURE 0x40000000
-
-/* This CPUID returns a feature bitmap in eax. Before enabling a particular
- * paravirtualization, the appropriate feature bit should be checked.
- */
-#define KVM_CPUID_FEATURES 0x40000001
-#define KVM_FEATURE_CLOCKSOURCE 0
-#define KVM_FEATURE_NOP_IO_DELAY 1
-#define KVM_FEATURE_MMU_OP 2
-
-#define MSR_KVM_WALL_CLOCK 0x11
-#define MSR_KVM_SYSTEM_TIME 0x12
-
-#define KVM_MAX_MMU_OP_BATCH 32
-
-/* Operations for KVM_HC_MMU_OP */
-#define KVM_MMU_OP_WRITE_PTE 1
-#define KVM_MMU_OP_FLUSH_TLB 2
-#define KVM_MMU_OP_RELEASE_PT 3
-
-/* Payload for KVM_HC_MMU_OP */
-struct kvm_mmu_op_header {
- __u32 op;
- __u32 pad;
-};
-
-struct kvm_mmu_op_write_pte {
- struct kvm_mmu_op_header header;
- __u64 pte_phys;
- __u64 pte_val;
-};
-
-struct kvm_mmu_op_flush_tlb {
- struct kvm_mmu_op_header header;
-};
-
-struct kvm_mmu_op_release_pt {
- struct kvm_mmu_op_header header;
- __u64 pt_phys;
-};
-
-#ifdef __KERNEL__
-#include <asm/processor.h>
-
-extern void kvmclock_init(void);
-
-
-/* This instruction is vmcall. On non-VT architectures, it will generate a
- * trap that we will then rewrite to the appropriate instruction.
- */
-#define KVM_HYPERCALL ".byte 0x0f,0x01,0xc1"
-
-/* For KVM hypercalls, a three-byte sequence of either the vmrun or the vmmrun
- * instruction. The hypervisor may replace it with something else but only the
- * instructions are guaranteed to be supported.
- *
- * Up to four arguments may be passed in rbx, rcx, rdx, and rsi respectively.
- * The hypercall number should be placed in rax and the return value will be
- * placed in rax. No other registers will be clobbered unless explicited
- * noted by the particular hypercall.
- */
-
-static inline long kvm_hypercall0(unsigned int nr)
-{
- long ret;
- asm volatile(KVM_HYPERCALL
- : "=a"(ret)
- : "a"(nr)
- : "memory");
- return ret;
-}
-
-static inline long kvm_hypercall1(unsigned int nr, unsigned long p1)
-{
- long ret;
- asm volatile(KVM_HYPERCALL
- : "=a"(ret)
- : "a"(nr), "b"(p1)
- : "memory");
- return ret;
-}
-
-static inline long kvm_hypercall2(unsigned int nr, unsigned long p1,
- unsigned long p2)
-{
- long ret;
- asm volatile(KVM_HYPERCALL
- : "=a"(ret)
- : "a"(nr), "b"(p1), "c"(p2)
- : "memory");
- return ret;
-}
-
-static inline long kvm_hypercall3(unsigned int nr, unsigned long p1,
- unsigned long p2, unsigned long p3)
-{
- long ret;
- asm volatile(KVM_HYPERCALL
- : "=a"(ret)
- : "a"(nr), "b"(p1), "c"(p2), "d"(p3)
- : "memory");
- return ret;
-}
-
-static inline long kvm_hypercall4(unsigned int nr, unsigned long p1,
- unsigned long p2, unsigned long p3,
- unsigned long p4)
-{
- long ret;
- asm volatile(KVM_HYPERCALL
- : "=a"(ret)
- : "a"(nr), "b"(p1), "c"(p2), "d"(p3), "S"(p4)
- : "memory");
- return ret;
-}
-
-static inline int kvm_para_available(void)
-{
- unsigned int eax, ebx, ecx, edx;
- char signature[13];
-
- cpuid(KVM_CPUID_SIGNATURE, &eax, &ebx, &ecx, &edx);
- memcpy(signature + 0, &ebx, 4);
- memcpy(signature + 4, &ecx, 4);
- memcpy(signature + 8, &edx, 4);
- signature[12] = 0;
-
- if (strcmp(signature, "KVMKVMKVM") == 0)
- return 1;
-
- return 0;
-}
-
-static inline unsigned int kvm_arch_para_features(void)
-{
- return cpuid_eax(KVM_CPUID_FEATURES);
-}
-
-#endif
-
-#endif /* ASM_X86__KVM_PARA_H */