Failover for pooled memory

Patent metadata

Field	Value
Publication number	US-12380005-B2
Application number	US-202117479267-A
Country	US
Kind code	B2
Filing date	Sep 20, 2021
Priority date	Sep 20, 2021
Publication date	Aug 5, 2025
Grant date	Aug 5, 2025

Abstract

An embodiment of an electronic apparatus may comprise one or more substrates, and a controller coupled to the one or more substrates, the controller to allocate a first secure portion of a pooled memory to a first instantiation of an application on a first node, and circuitry coupled to the one or more substrates and the controller, the circuitry to provide a failover interface for a second instantiation of the application on a second node to access the first secure portion of the pooled memory in the event of a failure of the first node. Other embodiments are disclosed and claimed.

First claim

What is claimed is:

1. An electronic apparatus, comprising:
one or more substrates; and
a controller coupled to the one or more substrates, the controller to allocate a first secure portion of a pooled memory to a first instantiation of an application on a first node; and
circuitry coupled to the one or more substrates and the controller, the circuitry to:
detect an initiation of a second instantiation of the application at a second node, wherein the initiation is based on a failure of the first node;
provide a failover interface at the second node; and
with the failover interface:
receive, from an operating system at the second node, an identifier of the application, wherein the failover interface is to receive the identifier based on an authentication request from the second instantiation to the operating system;
send the identifier from the second node to a failover manager at the pooled memory, wherein, based on the identifier, an authentication of the second instantiation is to be performed with the failover manager and a trusted server; and
based on the authentication, receive authentication information from the failover manager, the authentication information comprising an address of metadata in the pooled memory, wherein the second node is to execute the second instantiation with the metadata and the first secure portion of the pooled memory.

2. The electronic apparatus of claim 1 , wherein the metadata comprises a page table.

3. The electronic apparatus of claim 1 , wherein the circuitry is further to perform the authentication of the second instantiation.

4. The electronic apparatus of claim 1 , wherein the circuitry is further to:
associate the first secure portion of the pooled memory with the second instantiation of the application based on the authentication.

5. The electronic apparatus of claim 1 , wherein the circuitry is further to:
store failover information in a second secure portion of the pooled memory; and
synchronize the failover information with a host.

6. An electronic system, comprising:
pooled memory;
a controller communicatively coupled to the pooled memory to allocate a first secure portion of the pooled memory to a first instantiation of an application on a first node; and
circuitry communicatively coupled to the controller, the circuitry to:
detect an initiation of a second instantiation of the application at a second node, wherein the initiation is based on a failure of the first node;
provide a failover interface at the second node; and
with the failover interface:
receive, from an operating system at the second node, an identifier of the application, wherein the failover interface is to receive the identifier based on an authentication request from the second instantiation to the operating system;
send the identifier from the second node to a failover manager at the pooled memory, wherein, based on the identifier, an authentication of the second instantiation is to be performed with the failover manager and a trusted server; and
based on the authentication, receive authentication information from the failover manager, the authentication information comprising an address of metadata in the pooled memory, wherein the second node is to execute the second instantiation with the metadata and the first secure portion of the pooled memory.

7. The electronic system of claim 6 , wherein the metadata comprises a page table.

8. The electronic system of claim 6 , wherein the circuitry is further to perform the authentication of the second instantiation.

9. The electronic system of claim 6 , wherein the circuitry is further to:
associate the first secure portion of the pooled memory with the second instantiation of the application based on the authentication.

10. The electronic system of claim 6 , wherein the circuitry is further to:
store failover information in a second secure portion of the pooled memory; and
synchronize the failover information with a host.

11. A method, comprising:
allocating a first secure portion of a pooled memory to a first instantiation of an application on a first node;
detecting an initiation of a second instantiation of the application at a second node, wherein the initiation is based on a failure of the first node;
providing a failover interface at the second node; and
with the failover interface:
receiving, from an operating system at the second node, an identifier of the application, wherein the failover interface receives the identifier based on an authentication request from the second instantiation to the operating system;
sending the identifier from the second node to a failover manager at the pooled memory, wherein, based on the identifier, an authentication of the second instantiation is performed with the failover manager and a trusted server; and
based on the authentication, receiving authentication information from the failover manager, the authentication information comprising an address of metadata in the pooled memory, wherein the second node executes the second instantiation with the metadata and the first secure portion of the pooled memory.

12. The method of claim 11 , wherein the metadata comprises a page table.

13. The method of claim 11 , further comprising performing the authentication of the second instantiation.

14. The method of claim 11 , further comprising:
associating the first secure portion of the pooled memory with the second instantiation of the application based on the authentication.

15. The method of claim 11 , further comprising:
storing failover information in a second secure portion of the pooled memory; and
synchronizing the failover information with a host.

Assignees

• Intel Corp

Inventors

• Willhalm Thomas
• Guim Bernat Francesc
• Kumar Karthik
• Gupta Rita
• Schmisseur Mark
• Ziakas Dimitrios

Classifications

• G06F9/5016

  the resource being the memory · CPC title

• G06F12/1466

  Key-lock mechanism · CPC title

• G06F9/44505

  Configuring for program initiating, e.g. using registry, configuration files · CPC title

• G06F12/1425

  the protection being physical, e.g. cell, word, block · CPC title

• G06F11/1441

  Resetting or repowering · CPC title