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US 6,446,154 B1Granted
Method and mechanism for virtualizing legacy sideband signals in a hub interface architecture
AssigneeIntel Corporation
InventorsJasmin Ajanovic, Robert J. Greiner, Stephen S. Pawlowski
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Abstract
According to one embodiment, a method comprises receiving a first set of status signals at an input/output control hub (ICH), transmitting a first set of virtual signals corresponding to the first set of status signals to a memory control hub (MCH) via a hub interface. Subsequently, the first set of virtual signals are transmitted to a central processing unit (CPU). The first set of status signals corresponding to one or more legacy operations in a computer system.
Claims19
A computer system comprising:
- a central processing unit (CPU);
- a memory control hub (MCH) coupled to the CPU;
- a point to point interface coupled to the MCH;
- and
- an input/output control hub (ICH) coupled to the point to point interface,
- wherein the computer system is adaptable to transmit virtual legacy cycle signals from the ICH to the CPU via the point to point interface.
3 more elements
A method comprising:
- receiving a first set of status signals at an input/output control hub (ICH), the first set of status signals corresponding to one or more legacy operations in a computer system;
- transmitting a first set of virtual signals corresponding to the first set of status signals to a memory control hub (MCH) via a hub interface;
- and
- transmitting the first set of virtual signals to a central processing unit (CPU).
1 more element
A method comprising:
- receiving a first set of status signals at a memory control hub (MCH) from a central processing unit (CPU), the first set of status signals corresponding to one or more legacy operations in a computer system;
- and
- transmitting a first set of virtual signals corresponding to the first set of status signals to an input/output control hub (ICH) via a hub interface.
A hub interface comprising:
- an input/output control HUB (ICH);
- a point to point interface link coupled the ICH;
- and
- a memory control HUB (MCH) coupled to the point to point interface link;
- wherein the ICH is adaptable to transmit virtual signals to the MCH via the point to point interface link, the virtual signals representing one or more legacy operations performed in a computer system.
2 more elements
Dependencies are inferred from the claim text.