diff options
Diffstat (limited to 'arch/mips/include/uapi/asm/kvm.h')
-rw-r--r-- | arch/mips/include/uapi/asm/kvm.h | 91 |
1 files changed, 77 insertions, 14 deletions
diff --git a/arch/mips/include/uapi/asm/kvm.h b/arch/mips/include/uapi/asm/kvm.h index d145ead16b2c..3f424f5217da 100644 --- a/arch/mips/include/uapi/asm/kvm.h +++ b/arch/mips/include/uapi/asm/kvm.h @@ -13,10 +13,11 @@ #include <linux/types.h> -#define __KVM_MIPS - -#define N_MIPS_COPROC_REGS 32 -#define N_MIPS_COPROC_SEL 8 +/* + * KVM MIPS specific structures and definitions. + * + * Some parts derived from the x86 version of this file. + */ /* * for KVM_GET_REGS and KVM_SET_REGS @@ -31,12 +32,6 @@ struct kvm_regs { __u64 hi; __u64 lo; __u64 pc; - - __u32 cp0reg[N_MIPS_COPROC_REGS][N_MIPS_COPROC_SEL]; -}; - -/* for KVM_GET_SREGS and KVM_SET_SREGS */ -struct kvm_sregs { }; /* @@ -55,21 +50,89 @@ struct kvm_fpu { __u32 pad; }; + +/* + * For MIPS, we use KVM_SET_ONE_REG and KVM_GET_ONE_REG to access CP0 + * registers. The id field is broken down as follows: + * + * bits[2..0] - Register 'sel' index. + * bits[7..3] - Register 'rd' index. + * bits[15..8] - Must be zero. + * bits[63..16] - 1 -> CP0 registers. + * + * Other sets registers may be added in the future. Each set would + * have its own identifier in bits[63..16]. + * + * The addr field of struct kvm_one_reg must point to an aligned + * 64-bit wide location. For registers that are narrower than + * 64-bits, the value is stored in the low order bits of the location, + * and sign extended to 64-bits. + * + * The registers defined in struct kvm_regs are also accessible, the + * id values for these are below. + */ + +#define KVM_REG_MIPS_R0 0 +#define KVM_REG_MIPS_R1 1 +#define KVM_REG_MIPS_R2 2 +#define KVM_REG_MIPS_R3 3 +#define KVM_REG_MIPS_R4 4 +#define KVM_REG_MIPS_R5 5 +#define KVM_REG_MIPS_R6 6 +#define KVM_REG_MIPS_R7 7 +#define KVM_REG_MIPS_R8 8 +#define KVM_REG_MIPS_R9 9 +#define KVM_REG_MIPS_R10 10 +#define KVM_REG_MIPS_R11 11 +#define KVM_REG_MIPS_R12 12 +#define KVM_REG_MIPS_R13 13 +#define KVM_REG_MIPS_R14 14 +#define KVM_REG_MIPS_R15 15 +#define KVM_REG_MIPS_R16 16 +#define KVM_REG_MIPS_R17 17 +#define KVM_REG_MIPS_R18 18 +#define KVM_REG_MIPS_R19 19 +#define KVM_REG_MIPS_R20 20 +#define KVM_REG_MIPS_R21 21 +#define KVM_REG_MIPS_R22 22 +#define KVM_REG_MIPS_R23 23 +#define KVM_REG_MIPS_R24 24 +#define KVM_REG_MIPS_R25 25 +#define KVM_REG_MIPS_R26 26 +#define KVM_REG_MIPS_R27 27 +#define KVM_REG_MIPS_R28 28 +#define KVM_REG_MIPS_R29 29 +#define KVM_REG_MIPS_R30 30 +#define KVM_REG_MIPS_R31 31 + +#define KVM_REG_MIPS_HI 32 +#define KVM_REG_MIPS_LO 33 +#define KVM_REG_MIPS_PC 34 + +/* + * KVM MIPS specific structures and definitions + * + */ struct kvm_debug_exit_arch { + __u64 epc; }; /* for KVM_SET_GUEST_DEBUG */ struct kvm_guest_debug_arch { }; +/* definition of registers in kvm_run */ +struct kvm_sync_regs { +}; + +/* dummy definition */ +struct kvm_sregs { +}; + struct kvm_mips_interrupt { /* in */ __u32 cpu; __u32 irq; }; -/* definition of registers in kvm_run */ -struct kvm_sync_regs { -}; - #endif /* __LINUX_KVM_MIPS_H */ |