From: Laurent Vivier <Laurent.Vivier-6ktuUTfB/bM@public.gmane.org>
To: kvm-devel <kvm-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org>
Subject: PATCH 2/6] Consolidate the various functions that read and write guest memory
Date: Mon, 30 Jul 2007 11:37:44 +0200 [thread overview]
Message-ID: <46ADB168.20209@bull.net> (raw)
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emulator_read_emulated() uses struct kvm_vcpu instead of x86_emulate_ctxt to be
consistency with emulator_read_std().
Signed-off-by: Laurent Vivier <Laurent.Vivier-6ktuUTfB/bM@public.gmane.org>
--
------------- Laurent.Vivier-6ktuUTfB/bM@public.gmane.org --------------
"Software is hard" - Donald Knuth
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Index: kvm/drivers/kvm/kvm_main.c
===================================================================
--- kvm.orig/drivers/kvm/kvm_main.c 2007-07-30 10:49:09.000000000 +0200
+++ kvm/drivers/kvm/kvm_main.c 2007-07-30 10:49:22.000000000 +0200
@@ -1037,9 +1037,8 @@
static int emulator_read_emulated(unsigned long addr,
void *val,
unsigned int bytes,
- struct x86_emulate_ctxt *ctxt)
+ struct kvm_vcpu *vcpu)
{
- struct kvm_vcpu *vcpu = ctxt->vcpu;
struct kvm_io_device *mmio_dev;
gpa_t gpa;
Index: kvm/drivers/kvm/x86_emulate.c
===================================================================
--- kvm.orig/drivers/kvm/x86_emulate.c 2007-07-30 10:49:09.000000000 +0200
+++ kvm/drivers/kvm/x86_emulate.c 2007-07-30 10:49:22.000000000 +0200
@@ -782,7 +782,7 @@
src.type = OP_MEM;
src.ptr = (unsigned long *)cr2;
if ((rc = ops->read_emulated((unsigned long)src.ptr,
- &src.val, src.bytes, ctxt)) != 0)
+ &src.val, src.bytes, ctxt->vcpu)) != 0)
goto done;
src.orig_val = src.val;
break;
@@ -852,7 +852,7 @@
}
if (!(d & Mov) && /* optimisation - avoid slow emulated read */
((rc = ops->read_emulated((unsigned long)dst.ptr,
- &dst.val, dst.bytes, ctxt)) != 0))
+ &dst.val, dst.bytes, ctxt->vcpu)) != 0))
goto done;
break;
}
@@ -1132,7 +1132,7 @@
_regs[VCPU_REGS_RDI]);
if ((rc = ops->read_emulated(register_address(
override_base ? *override_base : ctxt->ds_base,
- _regs[VCPU_REGS_RSI]), &dst.val, dst.bytes, ctxt)) != 0)
+ _regs[VCPU_REGS_RSI]), &dst.val, dst.bytes, ctxt->vcpu)) != 0)
goto done;
register_address_increment(_regs[VCPU_REGS_RSI],
(_eflags & EFLG_DF) ? -dst.bytes : dst.bytes);
@@ -1154,7 +1154,8 @@
dst.type = OP_REG;
dst.bytes = (d & ByteOp) ? 1 : op_bytes;
dst.ptr = (unsigned long *)&_regs[VCPU_REGS_RAX];
- if ((rc = ops->read_emulated(cr2, &dst.val, dst.bytes, ctxt)) != 0)
+ if ((rc = ops->read_emulated(cr2, &dst.val, dst.bytes,
+ ctxt->vcpu)) != 0)
goto done;
register_address_increment(_regs[VCPU_REGS_RSI],
(_eflags & EFLG_DF) ? -dst.bytes : dst.bytes);
@@ -1379,7 +1380,8 @@
case 0xc7: /* Grp9 (cmpxchg8b) */
{
u64 old, new;
- if ((rc = ops->read_emulated(cr2, &old, 8, ctxt)) != 0)
+ if ((rc = ops->read_emulated(cr2, &old, 8, ctxt->vcpu))
+ != 0)
goto done;
if (((u32) (old >> 0) != (u32) _regs[VCPU_REGS_RAX]) ||
((u32) (old >> 32) != (u32) _regs[VCPU_REGS_RDX])) {
Index: kvm/drivers/kvm/x86_emulate.h
===================================================================
--- kvm.orig/drivers/kvm/x86_emulate.h 2007-07-30 10:49:09.000000000 +0200
+++ kvm/drivers/kvm/x86_emulate.h 2007-07-30 10:49:22.000000000 +0200
@@ -82,7 +82,7 @@
int (*read_emulated) (unsigned long addr,
void *val,
unsigned int bytes,
- struct x86_emulate_ctxt * ctxt);
+ struct kvm_vcpu *vcpu);
/*
* write_emulated: Read bytes from emulated/special memory area.
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