发明名称 |
Handling legacy BIOS services for mass storage devices using systems management interrupts with or without waiting for data transferred to mass storage devices |
摘要 |
A method, system, and computer program product containing instructions for handling legacy BIOS services for mass storage devices using system management interrupts. In response to receiving a request for an input/output service, a system management interrupt is generated to enter system management mode. A system management RAM (SMRAM) is accessible to code executing inside system management mode. Sub-operations to perform the requested service are identified, and code is executed outside the SMRAM to perform a sub-operation to fulfill the request. The sub-operations identified for execution outside SMRAM include any sub-operations that require waiting for data to be transferred. Other code executing inside the SMRAM may perform additional sub-operations that do not require waiting for data transfers to fulfill the request. System management mode is exited before invoking the code to perform the sub-operation to execute outside the SMRAM. |
申请公布号 |
US8255594(B2) |
申请公布日期 |
2012.08.28 |
申请号 |
US20090587908 |
申请日期 |
2009.10.15 |
申请人 |
DE DEBKUMAR;MUDUSURU GIRI P.;INTEL CORPORATION |
发明人 |
DE DEBKUMAR;MUDUSURU GIRI P. |
分类号 |
G06F13/00;G06F12/00;G06F13/24 |
主分类号 |
G06F13/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|