[PATCH 10/16] make emulate_insn receive a vcpu struct.

Glauber de Oliveira Costa
2008-01-07T13:09:33Z

emulate_insn() needs to know about current eip, which will be,
in the future, a per-vcpu thing. So in this patch, the function
prototype is modified to receive a vcpu struct

Signed-off-by: Glauber de Oliveira Costa <gcosta@redhat.com>
---
drivers/lguest/x86/core.c | 5 +++--
1 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/lguest/x86/core.c b/drivers/lguest/x86/core.c
index 125a14b..b336fff 100644
--- a/drivers/lguest/x86/core.c
+++ b/drivers/lguest/x86/core.c
@@ -220,8 +220,9 @@ void lguest_arch_run_guest(struct lg_vcpu *vcpu)
* When the Guest uses one of these instructions, we get a trap (General
* Protection Fault) and come here. We see if it's one of those troublesome
* instructions and skip over it. We return true if we did. */
-static int emulate_insn(struct lguest *lg)
+static int emulate_insn(struct lg_vcpu *vcpu)
{
+ struct lguest *lg = vcpu->lg;
u8 insn;
unsigned int insnlen = 0, in = 0, shift = 0;
/* The eip contains the *virtual* address of the Guest's instruction:
@@ -294,7 +295,7 @@ void lguest_arch_handle_trap(struct lg_vcpu *vcpu)
* instructions which we need to emulate. If so, we just go
* back into the Guest after we've done it. */
if (lg->regs->errcode == 0) {
- if (emulate_insn(lg))
+ if (emulate_insn(vcpu))
return;
}
break;
--
1.5.0.6