diff options
| author | Laurent Vivier <Laurent.Vivier@bull.net> | 2007-09-18 11:52:50 +0200 |
|---|---|---|
| committer | Avi Kivity <avi@qumranet.com> | 2008-01-30 17:52:47 +0200 |
| commit | e4e03deda83b1f2fc37ccbfc1eef27e86e8ed4e9 (patch) | |
| tree | 5306b8f262bddcc4e5a59520f8628d85a5b4eaf7 /drivers/kvm/x86_emulate.h | |
| parent | a7ddce3afc8326870b9e5e02fa41e028bffb10a5 (diff) | |
KVM: x86 emulator: move all x86_emulate_memop() to a structure
Move all x86_emulate_memop() common variables between decode and execute to a
structure decode_cache. This will help in later separating decode and
emulate.
struct decode_cache {
u8 twobyte;
u8 b;
u8 lock_prefix;
u8 rep_prefix;
u8 op_bytes;
u8 ad_bytes;
struct operand src;
struct operand dst;
unsigned long *override_base;
unsigned int d;
unsigned long regs[NR_VCPU_REGS];
unsigned long eip;
/* modrm */
u8 modrm;
u8 modrm_mod;
u8 modrm_reg;
u8 modrm_rm;
u8 use_modrm_ea;
unsigned long modrm_ea;
unsigned long modrm_val;
};
Signed-off-by: Laurent Vivier <Laurent.Vivier@bull.net>
Signed-off-by: Avi Kivity <avi@qumranet.com>
Diffstat (limited to 'drivers/kvm/x86_emulate.h')
| -rw-r--r-- | drivers/kvm/x86_emulate.h | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/drivers/kvm/x86_emulate.h b/drivers/kvm/x86_emulate.h index 92c73aa7f9ac..c354200d5834 100644 --- a/drivers/kvm/x86_emulate.h +++ b/drivers/kvm/x86_emulate.h @@ -112,6 +112,36 @@ struct x86_emulate_ops { }; +/* Type, address-of, and value of an instruction's operand. */ +struct operand { + enum { OP_REG, OP_MEM, OP_IMM } type; + unsigned int bytes; + unsigned long val, orig_val, *ptr; +}; + +struct decode_cache { + u8 twobyte; + u8 b; + u8 lock_prefix; + u8 rep_prefix; + u8 op_bytes; + u8 ad_bytes; + struct operand src; + struct operand dst; + unsigned long *override_base; + unsigned int d; + unsigned long regs[NR_VCPU_REGS]; + unsigned long eip; + /* modrm */ + u8 modrm; + u8 modrm_mod; + u8 modrm_reg; + u8 modrm_rm; + u8 use_modrm_ea; + unsigned long modrm_ea; + unsigned long modrm_val; +}; + struct x86_emulate_ctxt { /* Register state before/after emulation. */ struct kvm_vcpu *vcpu; @@ -129,6 +159,10 @@ struct x86_emulate_ctxt { unsigned long ss_base; unsigned long gs_base; unsigned long fs_base; + + /* decode cache */ + + struct decode_cache decode; }; /* Execution mode, passed to the emulator. */ |