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 at 12:49
Everyone
809318
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 at 12:49
Everyone
809318
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 at 12:49
Everyone
809318
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 at 12:49
Everyone
809318
asked Nov 16 at 12:49
Everyone
809318
asked Nov 16 at 12:49
Everyone
809318
asked Nov 16 at 12:49
Everyone
809318
asked Nov 16 at 12:49
Everyone
809318
809318
add a comment |
add a comment |
1 Answer
1
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 at 23:56
prl
4,1851315
Thank you. I will look more into the reference.
– Everyone
Nov 20 at 3:55
add a comment |
Your Answer
StackExchange.ifUsing("editor", function () {
StackExchange.using("externalEditor", function () {
StackExchange.using("snippets", function () {
StackExchange.snippets.init();
});
});
}, "code-snippets");
StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});
function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});
}
});
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53338266%2fis-it-possible-for-applications-on-vms-to-communicate-with-hypervisor-directly%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
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 at 23:56
prl
4,1851315
Thank you. I will look more into the reference.
– Everyone
Nov 20 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 at 23:56
prl
4,1851315
Thank you. I will look more into the reference.
– Everyone
Nov 20 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 at 23:56
prl
4,1851315
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 at 23:56
prl
4,1851315
answered Nov 19 at 23:56
prl
4,1851315
answered Nov 19 at 23:56
prl
4,1851315
answered Nov 19 at 23:56
prl
4,1851315
4,1851315
Thank you. I will look more into the reference.
– Everyone
Nov 20 at 3:55
add a comment |
Thank you. I will look more into the reference.
– Everyone
Nov 20 at 3:55
Thank you. I will look more into the reference.
– Everyone
Nov 20 at 3:55
Thank you. I will look more into the reference.
– Everyone
Nov 20 at 3:55
add a comment |
Thanks for contributing an answer to Stack Overflow!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
Some of your past answers have not been well-received, and you're in danger of being blocked from answering.
Please pay close attention to the following guidance:
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53338266%2fis-it-possible-for-applications-on-vms-to-communicate-with-hypervisor-directly%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
