diff options
Diffstat (limited to 'arch/x86/kvm/kvm_emulate.h')
| -rw-r--r-- | arch/x86/kvm/kvm_emulate.h | 48 |
1 files changed, 32 insertions, 16 deletions
diff --git a/arch/x86/kvm/kvm_emulate.h b/arch/x86/kvm/kvm_emulate.h index 89246446d6aa..2d9662be8333 100644 --- a/arch/x86/kvm/kvm_emulate.h +++ b/arch/x86/kvm/kvm_emulate.h @@ -117,16 +117,6 @@ struct x86_emulate_ops { struct x86_exception *fault, bool system); /* - * read_phys: Read bytes of standard (non-emulated/special) memory. - * Used for descriptor reading. - * @addr: [IN ] Physical address from which to read. - * @val: [OUT] Value read from memory. - * @bytes: [IN ] Number of bytes to read from memory. - */ - int (*read_phys)(struct x86_emulate_ctxt *ctxt, unsigned long addr, - void *val, unsigned int bytes); - - /* * write_std: Write bytes of standard (non-emulated/special) memory. * Used for descriptor writing. * @addr: [IN ] Linear address to which to write. @@ -209,11 +199,8 @@ struct x86_emulate_ops { int (*cpl)(struct x86_emulate_ctxt *ctxt); void (*get_dr)(struct x86_emulate_ctxt *ctxt, int dr, ulong *dest); int (*set_dr)(struct x86_emulate_ctxt *ctxt, int dr, ulong value); - u64 (*get_smbase)(struct x86_emulate_ctxt *ctxt); - void (*set_smbase)(struct x86_emulate_ctxt *ctxt, u64 smbase); int (*set_msr_with_filter)(struct x86_emulate_ctxt *ctxt, u32 msr_index, u64 data); int (*get_msr_with_filter)(struct x86_emulate_ctxt *ctxt, u32 msr_index, u64 *pdata); - int (*set_msr)(struct x86_emulate_ctxt *ctxt, u32 msr_index, u64 data); int (*get_msr)(struct x86_emulate_ctxt *ctxt, u32 msr_index, u64 *pdata); int (*check_pmc)(struct x86_emulate_ctxt *ctxt, u32 pmc); int (*read_pmc)(struct x86_emulate_ctxt *ctxt, u32 pmc, u64 *pdata); @@ -234,8 +221,7 @@ struct x86_emulate_ops { void (*set_nmi_mask)(struct x86_emulate_ctxt *ctxt, bool masked); unsigned (*get_hflags)(struct x86_emulate_ctxt *ctxt); - void (*exiting_smm)(struct x86_emulate_ctxt *ctxt); - int (*leave_smm)(struct x86_emulate_ctxt *ctxt, const char *smstate); + int (*leave_smm)(struct x86_emulate_ctxt *ctxt); void (*triple_fault)(struct x86_emulate_ctxt *ctxt); int (*set_xcr)(struct x86_emulate_ctxt *ctxt, u32 index, u64 xcr); }; @@ -292,7 +278,6 @@ enum x86emul_mode { /* These match some of the HF_* flags defined in kvm_host.h */ #define X86EMUL_GUEST_MASK (1 << 5) /* VCPU is in guest-mode */ #define X86EMUL_SMM_MASK (1 << 6) -#define X86EMUL_SMM_INSIDE_NMI_MASK (1 << 7) /* * fastop functions are declared as taking a never-defined fastop parameter, @@ -526,4 +511,35 @@ void emulator_invalidate_register_cache(struct x86_emulate_ctxt *ctxt); void emulator_writeback_register_cache(struct x86_emulate_ctxt *ctxt); bool emulator_can_use_gpa(struct x86_emulate_ctxt *ctxt); +static inline ulong reg_read(struct x86_emulate_ctxt *ctxt, unsigned nr) +{ + if (KVM_EMULATOR_BUG_ON(nr >= NR_EMULATOR_GPRS, ctxt)) + nr &= NR_EMULATOR_GPRS - 1; + + if (!(ctxt->regs_valid & (1 << nr))) { + ctxt->regs_valid |= 1 << nr; + ctxt->_regs[nr] = ctxt->ops->read_gpr(ctxt, nr); + } + return ctxt->_regs[nr]; +} + +static inline ulong *reg_write(struct x86_emulate_ctxt *ctxt, unsigned nr) +{ + if (KVM_EMULATOR_BUG_ON(nr >= NR_EMULATOR_GPRS, ctxt)) + nr &= NR_EMULATOR_GPRS - 1; + + BUILD_BUG_ON(sizeof(ctxt->regs_dirty) * BITS_PER_BYTE < NR_EMULATOR_GPRS); + BUILD_BUG_ON(sizeof(ctxt->regs_valid) * BITS_PER_BYTE < NR_EMULATOR_GPRS); + + ctxt->regs_valid |= 1 << nr; + ctxt->regs_dirty |= 1 << nr; + return &ctxt->_regs[nr]; +} + +static inline ulong *reg_rmw(struct x86_emulate_ctxt *ctxt, unsigned nr) +{ + reg_read(ctxt, nr); + return reg_write(ctxt, nr); +} + #endif /* _ASM_X86_KVM_X86_EMULATE_H */ |