公开(公告)号：US20110093690A1

公开(公告)日：2011-04-21

申请号：US12581419

申请日：2009-10-19

申请人： Nikolai Vyssotski ,  Alok Pant

发明人： Nikolai Vyssotski ,  Alok Pant

IPC分类号： G06F9/24 ,  G06F15/16 ,  G06F11/07

CPC分类号： G06F9/4406

摘要： In accordance with the present disclosure, a system and method for a managed BIOS is disclosed. A software for a BIOS in an information handling system is provided on a computer readable medium. A first code, for execution on a central processing unit (CPU), is operable to initiate a connection to a management controller through a controller, send a message to the management controller through the controller, and receive a message from the management controller through the controller in response to a system management interrupt. The first code is also operable to stall a power-on procedure if it is able to determine a plurality of bootable devices before the connection to the management controller is ready. The first code is further operable to stall the power-on procedure before releasing control to an operating system if the management controller is active.

摘要翻译： 根据本公开，公开了一种用于被管理的BIOS的系统和方法。 在计算机可读介质上提供用于信息处理系统中的BIOS的软件。 用于在中央处理单元（CPU）上执行的第一代码可操作以通过控制器发起与管理控制器的连接，通过控制器向管理控制器发送消息，并通过该控制器从管理控制器接收消息 控制器响应系统管理中断。 如果能够在与管理控制器的连接准备好之前能够确定多个可引导设备，则第一代码还可操作以停止通电过程。 如果管理控制器处于活动状态，则第一代码进一步可操作以在释放对操作系统的控制之前停止通电过程。

公开(公告)号：US07716504B2

公开(公告)日：2010-05-11

申请号：US11457172

申请日：2006-07-13

申请人： Vijay B. Nijhawan ,  Alok Pant

发明人： Vijay B. Nijhawan ,  Alok Pant

IPC分类号： G06F1/26 ,  G06F1/32

CPC分类号： G06F1/3228

摘要： A method for adjusting power management setting of the operating system while the system is in a sleep state. When a user attaches or removes power to the information handling system while the system is in a standby mode of operation, the sleep state system generates a wakeup event. During the resume process, the operating system checks a current power state of the information handling system and compares the current power state to the power state settings present when the information handling system entered the sleep state, resets the power state settings if necessary and then causes the information handling system to reenter the sleep state.

摘要翻译： 一种在系统处于睡眠状态时调整操作系统的电源管理设置的方法。 当用户在系统处于待机操作模式时附加或移除信息处理系统的电力时，睡眠状态系统产生唤醒事件。 在恢复过程中，操作系统检查信息处理系统的当前功率状态，并将当前功率状态与当信息处理系统进入休眠状态时存在的功率状态设置进行比较，如果需要，则重置电源状态设置，然后导致 信息处理系统重新进入睡眠状态。

公开(公告)号：US07689750B2

公开(公告)日：2010-03-30

申请号：US12047909

申请日：2008-03-13

申请人： John J. Hawk ,  Alok Pant

发明人： John J. Hawk ,  Alok Pant

IPC分类号： G06F13/24 ,  G06F13/00

CPC分类号： G06F13/24 ,  G06F9/4812

摘要： Handling interrupts within an information handling system including entering into an interrupt management mode in response to receiving an interrupt, identifying at least one source of the received interrupt in accordance with an ordered list of a plurality of possible interrupt sources, dispatching an appropriate interrupt handler to resolve the identified at least one source of the received interrupt, noting a frequency of occurrence of each indentified at least one source generating a received interrupt over time, and recording the ordered list of possible interrupt sources in response to the noted frequency, wherein the possible interrupt sources with higher frequencies are placed in the beginning of the ordered list.

摘要翻译： 处理信息处理系统中的中断，包括响应于接收中断而进入中断管理模式，根据多个可能的中断源的有序列表识别接收到的中断的至少一个源，将适当的中断处理程序分配到 解决所识别的所接收的中断的至少一个源，注意每个识别的至少一个源的产生频率随时间产生接收到的中断，以及响应于所述频率记录可能的中断源的有序列表，其中可能的 具有较高频率的中断源放置在有序列表的开头。

公开(公告)号：US20100017796A1

公开(公告)日：2010-01-21

申请号：US12173884

申请日：2008-07-16

申请人： James L. Walker ,  John J. Hawk ,  Alok Pant ,  John Hentosh

发明人： James L. Walker ,  John J. Hawk ,  Alok Pant ,  John Hentosh

IPC分类号： G06F9/445 ,  G06F13/38

CPC分类号： G06F9/4411

摘要： In a Uniform Extensible Firmware Interface (UEFI) environment, a system management mode (SMM) driver and a non-SMM driver may be installed for the same hardware device. Until the SMM driver is available, the non-SMM driver is configured to conduct input/output (IO) transactions directly with the hardware device. The non-SMM driver can utilize native UEFI services to receive a notification that the SMM driver is available. Upon receiving such notification, (or if the SMM driver was already available before the non-SMM driver), the non-SMM driver is reconfigured to redirect all IO requests to the SMM driver, which then conducts the corresponding IO transactions directly with the hardware device. Redirecting all non-SMM IO requests for a hardware device to the SMM driver for the hardware device limits direct access to the hardware device to only one driver, the SMM driver, thereby facilitating the integrity or atomicity of IO transactions.

摘要翻译： 在统一的可扩展固件接口（UEFI）环境中，可以为相同的硬件设备安装系统管理模式（SMM）驱动程序和非SMM驱动程序。 在SMM驱动程序可用之前，非SMM驱动程序被配置为直接与硬件设备进行输入/输出（IO）事务。 非SMM驱动程序可以利用本机UEFI服务来接收SMM驱动程序可用的通知。 （或者如果SMM驱动程序在非SMM驱动程序之前已经可用），则非SMM驱动程序被重新配置为将所有IO请求重定向到SMM驱动程序，然后SMM驱动程序直接用硬件进行相应的IO事务 设备。 将硬件设备的所有非SMM IO请求重定向到硬件设备的SMM驱动程序都限制将硬件设备直接访问到仅一个驱动程序SMM驱动程序，从而便于IO事务的完整性或原子性。

公开(公告)号：US20090320128A1

公开(公告)日：2009-12-24

申请号：US12132763

申请日：2008-06-04

申请人： Alok Pant ,  James Walker

发明人： Alok Pant ,  James Walker

IPC分类号： G06F21/00 ,  G06F11/00

CPC分类号： G06F21/44 ,  G06F21/554

摘要： A system management interrupt (SMI) security system includes one or more subsystems to define a first variable using advanced configuration and power interface (ACPI) source language (ASL) code, define a second variable using system management mode (SMM) code, generate a first soft SMI to generate a random value, update the first and second variables with the generated value, generate a second SMI to perform an operation, compare the values of the first and second variables and perform the operation in response to the first and second variables having a value substantially the same as one another.

摘要翻译： 系统管理中断（SMI）安全系统包括使用高级配置和电源接口（ACPI）源语言（ASL）代码定义第一变量的一个或多个子系统，使用系统管理模式（SMM）代码定义第二变量，生成 第一软SMI以生成随机值，用生成的值更新第一和第二变量，生成第二SMI以执行操作，比较第一和第二变量的值，并响应于第一和第二变量执行操作 具有彼此基本相同的值。

公开(公告)号：US20090235005A1

公开(公告)日：2009-09-17

申请号：US12047909

申请日：2008-03-13

申请人： John J. Hawk ,  Alok Pant

发明人： John J. Hawk ,  Alok Pant

IPC分类号： G06F13/24

CPC分类号： G06F13/24 ,  G06F9/4812

摘要： Handling interrupts within an information handling system includes entering into an interrupt management mode in response to receiving an interrupt, identifying at least one source of the received interrupt in accordance with an ordered list of a plurality of possible interrupt sources, dispatching an appropriate interrupt handler to resolve the identified at least one source of the received interrupt, noting a frequency of occurrence of each identified at least one source generating a received interrupt over time, and reordering the ordered list of possible interrupt sources in response to the noted frequency, wherein the possible interrupt sources with higher frequencies are placed in the beginning of the ordered list.

摘要翻译： 处理信息处理系统中的中断包括响应于接收到中断而进入中断管理模式，根据多个可能的中断源的有序列表识别接收到的中断的至少一个源，将适当的中断处理程序调度到 解决所识别的接收中断的至少一个源，注意每个识别的至少一个源的发生频率随时间产生接收的中断，并且响应于所述频率重新排序可能的中断源的有序列表，其中可能的 具有较高频率的中断源放置在有序列表的开头。

公开(公告)号：US20080022367A1

公开(公告)日：2008-01-24

申请号：US11428856

申请日：2006-07-06

申请人： James E. Dailey ,  Alok Pant ,  Benjamen G. Tyner ,  Kendall C. Witte

发明人： James E. Dailey ,  Alok Pant ,  Benjamen G. Tyner ,  Kendall C. Witte

IPC分类号： H04L9/32

CPC分类号： G06F21/32 ,  G06F21/31 ,  G06F21/34

摘要： An information handling system which supports Pre-Boot Authentication (PBA) and which provides the ability for each authorized user of the system to have a unique ID and key at the BIOS level. In these systems, a user only needs knowledge of the traditional BIOS password only at the time the user is enrolled in the PBA feature. Later changes to the password do not have the effect of denying access to enrolled users.

摘要翻译： 一种支持预引导认证（PBA）的信息处理系统，其能够为系统的每个授权用户在BIOS级别提供唯一的ID和密钥。 在这些系统中，只有在用户注册PBA功能时，用户才需要知道传统的BIOS密码。 后来对密码的更改没有拒绝对注册用户的访问的效果。

公开(公告)号：US20080022063A1

公开(公告)日：2008-01-24

申请号：US11458704

申请日：2006-07-20

申请人： Alok Pant ,  Anthony L. Overfield ,  Jim Walker ,  Kendall C. Witte

发明人： Alok Pant ,  Anthony L. Overfield ,  Jim Walker ,  Kendall C. Witte

IPC分类号： G06F13/00

CPC分类号： G06F9/44521

摘要： A method for relocating system management interface code in an information handling system which includes extracting a relocation table from the system management interface code, inserting a relocation identifier in each entry of the system management interface code having an address, searching the system management code for the relocation identifier during execution of the information handling system, and inserting an address based upon a relocation address for each entry in the system management interface code having a relocation identifier.

摘要翻译： 一种在信息处理系统中重定位系统管理接口代码的方法，包括从系统管理接口代码提取重定位表，在具有地址的系统管理接口代码的每个条目中插入重定位标识符，搜索系统管理代码以获取 在信息处理系统的执行期间重定位标识符，以及根据具有重定位标识符的系统管理接口代码中的每个条目的重定位地址插入地址。