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c21415e8
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c21415e8
编写于
2月 19, 2007
作者:
I
Ingo Molnar
提交者:
Avi Kivity
3月 04, 2007
浏览文件
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电子邮件补丁
差异文件
KVM: Add host hypercall support for vmx
Signed-off-by:
N
Avi Kivity
<
avi@qumranet.com
>
上级
102d8325
变更
2
隐藏空白更改
内联
并排
Showing
2 changed file
with
33 addition
and
0 deletion
+33
-0
drivers/kvm/vmx.c
drivers/kvm/vmx.c
+15
-0
include/linux/kvm_para.h
include/linux/kvm_para.h
+18
-0
未找到文件。
drivers/kvm/vmx.c
浏览文件 @
c21415e8
...
...
@@ -1657,6 +1657,20 @@ static int handle_halt(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
return
0
;
}
static
int
handle_vmcall
(
struct
kvm_vcpu
*
vcpu
,
struct
kvm_run
*
kvm_run
)
{
kvm_run
->
exit_reason
=
KVM_EXIT_DEBUG
;
printk
(
KERN_DEBUG
"got vmcall at RIP %08lx
\n
"
,
vmcs_readl
(
GUEST_RIP
));
printk
(
KERN_DEBUG
"vmcall params: %08lx, %08lx, %08lx, %08lx
\n
"
,
vcpu
->
regs
[
VCPU_REGS_RAX
],
vcpu
->
regs
[
VCPU_REGS_RCX
],
vcpu
->
regs
[
VCPU_REGS_RDX
],
vcpu
->
regs
[
VCPU_REGS_RBP
]);
vcpu
->
regs
[
VCPU_REGS_RAX
]
=
0
;
vmcs_writel
(
GUEST_RIP
,
vmcs_readl
(
GUEST_RIP
)
+
3
);
return
1
;
}
/*
* The exit handlers return 1 if the exit was handled fully and guest execution
* may resume. Otherwise they set the kvm_run parameter to indicate what needs
...
...
@@ -1675,6 +1689,7 @@ static int (*kvm_vmx_exit_handlers[])(struct kvm_vcpu *vcpu,
[
EXIT_REASON_MSR_WRITE
]
=
handle_wrmsr
,
[
EXIT_REASON_PENDING_INTERRUPT
]
=
handle_interrupt_window
,
[
EXIT_REASON_HLT
]
=
handle_halt
,
[
EXIT_REASON_VMCALL
]
=
handle_vmcall
,
};
static
const
int
kvm_vmx_max_exit_handlers
=
...
...
include/linux/kvm_para.h
浏览文件 @
c21415e8
...
...
@@ -52,4 +52,22 @@ struct kvm_vcpu_para_state {
#define KVM_EINVAL 1
/*
* Hypercall calling convention:
*
* Each hypercall may have 0-6 parameters.
*
* 64-bit hypercall index is in RAX, goes from 0 to __NR_hypercalls-1
*
* 64-bit parameters 1-6 are in the standard gcc x86_64 calling convention
* order: RDI, RSI, RDX, RCX, R8, R9.
*
* 32-bit index is EBX, parameters are: EAX, ECX, EDX, ESI, EDI, EBP.
* (the first 3 are according to the gcc regparm calling convention)
*
* No registers are clobbered by the hypercall, except that the
* return value is in RAX.
*/
#define __NR_hypercalls 0
#endif
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