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3 Commits

Author SHA1 Message Date
Miao Yan fa287b1580 x86: qemu: add the ability to load and link ACPI tables from QEMU 
This patch adds the ability to load and link ACPI tables provided by QEMU.
QEMU tells guests how to load and patch ACPI tables through its fw_cfg
interface, by adding a firmware file 'etc/table-loader'. Guests are
supposed to parse this file and execute corresponding QEMU commands.

Signed-off-by: Miao Yan <yanmiaobest@gmail.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
 2016-01-28 13:53:30 +08:00
Miao Yan 25757220d6 x86: qemu: re-structure qemu_fwcfg_list_firmware() 
Re-write the logic in qemu_fwcfg_list_firmware(), add a function
qemu_fwcfg_read_firmware_list() to handle reading firmware list.

Signed-off-by: Miao Yan <yanmiaobest@gmail.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
 2016-01-28 13:53:30 +08:00
Miao Yan f60df20aa9 x86: qemu: add fw_cfg support 
The QEMU fw_cfg interface allows the guest to retrieve various data
information from QEMU. For example, APCI/SMBios tables, number of online
cpus, kernel data and command line, etc.

This patch adds support for QEMU fw_cfg interface.

Signed-off-by: Miao Yan <yanmiaobest@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
 2016-01-13 12:20:15 +08:00