Is it possible for applications on VMs to communicate with Hypervisor directly (not through VM Kernel)?
Assuming this figure:
Is it possible for line 1 of communication to exist directly as shown in the figure? Does any Hypervisor support this type of behavior? If not, is it possible to change a hypervisor (like KVM) to support this?
I suspect line 2 of communication is possible. But I am not quite sure. So the question also applies to line 2 of communcation as shown in the figure.
virtual-machine communication virtualization
asked Nov 16 '18 at 12:49
EveryoneEveryone
819318
add a comment |
Assuming this figure:
Is it possible for line 1 of communication to exist directly as shown in the figure? Does any Hypervisor support this type of behavior? If not, is it possible to change a hypervisor (like KVM) to support this?
I suspect line 2 of communication is possible. But I am not quite sure. So the question also applies to line 2 of communcation as shown in the figure.
virtual-machine communication virtualization
asked Nov 16 '18 at 12:49
EveryoneEveryone
819318
add a comment |
Assuming this figure:
Is it possible for line 1 of communication to exist directly as shown in the figure? Does any Hypervisor support this type of behavior? If not, is it possible to change a hypervisor (like KVM) to support this?
I suspect line 2 of communication is possible. But I am not quite sure. So the question also applies to line 2 of communcation as shown in the figure.
virtual-machine communication virtualization
asked Nov 16 '18 at 12:49
EveryoneEveryone
819318
Assuming this figure:
Is it possible for line 1 of communication to exist directly as shown in the figure? Does any Hypervisor support this type of behavior? If not, is it possible to change a hypervisor (like KVM) to support this?
I suspect line 2 of communication is possible. But I am not quite sure. So the question also applies to line 2 of communcation as shown in the figure.
virtual-machine communication virtualization
virtual-machine communication virtualization
asked Nov 16 '18 at 12:49
EveryoneEveryone
819318
asked Nov 16 '18 at 12:49
EveryoneEveryone
819318
asked Nov 16 '18 at 12:49
EveryoneEveryone
819318
asked Nov 16 '18 at 12:49
EveryoneEveryone
819318
asked Nov 16 '18 at 12:49
EveryoneEveryone
819318
819318
add a comment |
add a comment |
1 Answer
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Yes, it is possible. For example, using Intel VMX, the vmcall instruction can be used from an application. Any other instruction that is allowed in user mode and causes a VM exit can be used, such as cpuid or a memory access to an unmapped page.
The answers to this question talk about how to add a vmcall handler to KVM. Implementing a custom hypercall in kvm
answered Nov 19 '18 at 23:56
prlprl
4,5651316
Thank you. I will look more into the reference.
– Everyone
Nov 20 '18 at 3:55
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
Yes, it is possible. For example, using Intel VMX, the vmcall instruction can be used from an application. Any other instruction that is allowed in user mode and causes a VM exit can be used, such as cpuid or a memory access to an unmapped page.
The answers to this question talk about how to add a vmcall handler to KVM. Implementing a custom hypercall in kvm
answered Nov 19 '18 at 23:56
prlprl
4,5651316
Thank you. I will look more into the reference.
– Everyone
Nov 20 '18 at 3:55
add a comment |
Yes, it is possible. For example, using Intel VMX, the vmcall instruction can be used from an application. Any other instruction that is allowed in user mode and causes a VM exit can be used, such as cpuid or a memory access to an unmapped page.
The answers to this question talk about how to add a vmcall handler to KVM. Implementing a custom hypercall in kvm
answered Nov 19 '18 at 23:56
prlprl
4,5651316
Thank you. I will look more into the reference.
– Everyone
Nov 20 '18 at 3:55
add a comment |
Yes, it is possible. For example, using Intel VMX, the vmcall instruction can be used from an application. Any other instruction that is allowed in user mode and causes a VM exit can be used, such as cpuid or a memory access to an unmapped page.
The answers to this question talk about how to add a vmcall handler to KVM. Implementing a custom hypercall in kvm
answered Nov 19 '18 at 23:56
prlprl
4,5651316
Yes, it is possible. For example, using Intel VMX, the vmcall instruction can be used from an application. Any other instruction that is allowed in user mode and causes a VM exit can be used, such as cpuid or a memory access to an unmapped page.
The answers to this question talk about how to add a vmcall handler to KVM. Implementing a custom hypercall in kvm
answered Nov 19 '18 at 23:56
prlprl
4,5651316
answered Nov 19 '18 at 23:56
prlprl
4,5651316
answered Nov 19 '18 at 23:56
prlprl
4,5651316
answered Nov 19 '18 at 23:56
prlprl
4,5651316
4,5651316
Thank you. I will look more into the reference.
– Everyone
Nov 20 '18 at 3:55
add a comment |
Thank you. I will look more into the reference.
– Everyone
Nov 20 '18 at 3:55
Thank you. I will look more into the reference.
– Everyone
Nov 20 '18 at 3:55
Thank you. I will look more into the reference.
– Everyone
Nov 20 '18 at 3:55
add a comment |
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