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| author | Takuya Yoshikawa <yoshikawa.takuya@oss.ntt.co.jp> | 2011-05-15 00:54:58 +0900 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2011-07-12 11:44:56 +0300 |
| commit | 67cbc90db5c0f03aa5e54204c388403ec8c25862 (patch) | |
| tree | 105b1c9dfac9b34f5232852784cdc2f94113a238 /arch/x86/kvm/emulate.c | |
| parent | e76779339ba9c3d56f1a39ff0bfb1dfe7614b062 (diff) | |
| download | linux-rt-67cbc90db5c0f03aa5e54204c388403ec8c25862.tar.gz | |
KVM: x86 emulator: Place insn_fetch helpers together
The two macros need special care to use:
Assume rc, ctxt, ops and done exist outside of them.
Can goto outside.
Considering the fact that these are used only in decode functions,
moving these right after do_insn_fetch() seems to be a right thing
to improve the readability.
We also rename do_fetch_insn_byte() to do_insn_fetch_byte() to be
consistent.
Signed-off-by: Takuya Yoshikawa <yoshikawa.takuya@oss.ntt.co.jp>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Diffstat (limited to 'arch/x86/kvm/emulate.c')
| -rw-r--r-- | arch/x86/kvm/emulate.c | 38 |
1 files changed, 19 insertions, 19 deletions
diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c index adc98675cda0..6e4722c3dcdb 100644 --- a/arch/x86/kvm/emulate.c +++ b/arch/x86/kvm/emulate.c @@ -407,23 +407,6 @@ struct gprefix { } \ } while (0) -/* Fetch next part of the instruction being emulated. */ -#define insn_fetch(_type, _size, _eip) \ -({ unsigned long _x; \ - rc = do_insn_fetch(ctxt, ops, (_eip), &_x, (_size)); \ - if (rc != X86EMUL_CONTINUE) \ - goto done; \ - (_eip) += (_size); \ - (_type)_x; \ -}) - -#define insn_fetch_arr(_arr, _size, _eip) \ -({ rc = do_insn_fetch(ctxt, ops, (_eip), _arr, (_size)); \ - if (rc != X86EMUL_CONTINUE) \ - goto done; \ - (_eip) += (_size); \ -}) - static int emulator_check_intercept(struct x86_emulate_ctxt *ctxt, enum x86_intercept intercept, enum x86_intercept_stage stage) @@ -671,7 +654,7 @@ static int segmented_read_std(struct x86_emulate_ctxt *ctxt, return ctxt->ops->read_std(ctxt, linear, data, size, &ctxt->exception); } -static int do_fetch_insn_byte(struct x86_emulate_ctxt *ctxt, +static int do_insn_fetch_byte(struct x86_emulate_ctxt *ctxt, struct x86_emulate_ops *ops, unsigned long eip, u8 *dest) { @@ -707,13 +690,30 @@ static int do_insn_fetch(struct x86_emulate_ctxt *ctxt, if (eip + size - ctxt->eip > 15) return X86EMUL_UNHANDLEABLE; while (size--) { - rc = do_fetch_insn_byte(ctxt, ops, eip++, dest++); + rc = do_insn_fetch_byte(ctxt, ops, eip++, dest++); if (rc != X86EMUL_CONTINUE) return rc; } return X86EMUL_CONTINUE; } +/* Fetch next part of the instruction being emulated. */ +#define insn_fetch(_type, _size, _eip) \ +({ unsigned long _x; \ + rc = do_insn_fetch(ctxt, ops, (_eip), &_x, (_size)); \ + if (rc != X86EMUL_CONTINUE) \ + goto done; \ + (_eip) += (_size); \ + (_type)_x; \ +}) + +#define insn_fetch_arr(_arr, _size, _eip) \ +({ rc = do_insn_fetch(ctxt, ops, (_eip), _arr, (_size)); \ + if (rc != X86EMUL_CONTINUE) \ + goto done; \ + (_eip) += (_size); \ +}) + /* * Given the 'reg' portion of a ModRM byte, and a register block, return a * pointer into the block that addresses the relevant register. |