The Xen serial console has been broken since the xen_domu subtarget
was merged in the generic x86 subtarget (commits 1d6879ee and 371b382a).
The reason for the broken serial console seems to be an IRQ conflict
between the serial console driver and the PATA_LEGACY driver:
[ 1.330125] genirq: Flags mismatch irq 8. 00000000 (hvc_console) vs. 00000000 (platform[pata_legacy.4])
[ 1.330134] hvc_open: request_irq failed with rc -16.
[ 1.330148] Warning: unable to open an initial console.
Just drop the PATA_LEGACY driver from the x86/generic and x86_64
subtargets, since this driver is marked experimental and only supports
very old ISA devices anyway. It is still included in the x86/legacy
subtarget where it rightfully belongs.
Fixes: FS#787
Signed-off-by: Baptiste Jonglez <git@bitsofnetworks.org>
Xen support for x86/generic was added in 1d6879ee. This commit also
enables it for x86/64.
This was successfully tested with Xen 4.5, although the serial console
is broken in the same way as x86/generic (see FS#787)
Signed-off-by: Baptiste Jonglez <git@bitsofnetworks.org>
All x86 subtargets enable USB support, so it makes sense to enable it
in the target config instead, to avoid duplication.
Also refresh subtarget configs accordingly.
Signed-off-by: Baptiste Jonglez <git@bitsofnetworks.org>
This was done by simply running `make kernel_menuconfig CONFIG_TARGET=subtarget`
and then saving without changing any option.
Most of the removed options can be explained because they are already
present in the target config or in the generic 4.9 config:
- PAE-related options, enabled by default on x86 by 961c0eac
- LZO-related options, enabled by default since 4.9
As far as I understand the build system, this shouldn't have any
user-visible impact, because the build system already merges the
various kernel configs during build.
Signed-off-by: Baptiste Jonglez <git@bitsofnetworks.org>
These drivers are in many reference-design Xeon, iCore, or
Atom64 based server boards.
Signed-off-by: Philip Prindeville <philipp@redfish-solutions.com>
This driver supports CPU-specific idle features on recent Intel
processors. It does not conflict with the ACPI idle driver and
that driver will continue to be used for unsupported and non-Intel
processors.
Signed-off-by: Michael Marley <michael@michaelmarley.com>
The x86_64 build already has the k10temp driver for AMD processors
built in, so this patch adds the coretemp driver for the same
functionality on Intel processors.
Signed-off-by: Michael Marley <michael@michaelmarley.com>
CONFIG_FB_EFI and CONFIG_FB_SIMPLE are needed to display console text on
EFI framebuffer.
CONFIG_FB_EFI is needed when the kernel is directly launched via EFI
shell or EFI startup.nsh script.
CONFIG_FB_SIMPLE is needed when launching the kernel via grub2 efi. In
this case, grub2 has prepared a gfxterm framebuffer and the kernel just
need to use the already prepared grub's gfxterm framebuffer to display
console text.
Signed-off-by: Alif M. Ahmad <alive4ever@live.com>
The following changes enables GPIO sysfs as well as the LEDS_GPIO option
within the kernel. This is required to enable LEDs over a GPIO
interface.
Signed-off-by: Chris Blake <chrisrblake93@gmail.com>
The kernel will detect if the host supports this, so we can just enable
it in the kernel config.
Tested on an APU2 with AES-NI support and a KVM VM on a Xeon E5520 host
without AES-NI support.
Throughput over an IPsec tunnel between these 2 hosts increased from
~63Mbps to ~140Mbps. Ciphers: AES_GCM_16_256/PRF_HMAC_SHA2_512/ECP_521.
Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>
Enabled Hyper-V network interface card driver, display adapter driver,
storage driver, keyboard driver, mouse driver and Hyper-V utility and
EFI boot support in the kernel for subtarget x86/64.
Convert the img file to vhd by Ubuntu qemu-img, rather than by the buildroot's
built-in qemu-img.
Tested on Windows Server 2008 r2 and 2012 r2 Gen1 and Gen2 VMs.
Signed-off-by: Tedaz <tedaz99999@hotmail.com>
PATA support has been removed from x86-generic without any note in LEDE
r538. Not including them makes the generated images incompatible with older
(and some newer) hardware without any significant gain.
Add it back, and also add the same drivers (as far as available) to x86-64.
Signed-off-by: Andreas Ziegler <github@andreas-ziegler.de>
[Matthias Schiffer: add back x86-generic, update commit message]
Signed-off-by: Matthias Schiffer <mschiffer@universe-factory.net>
This will allow dynamically adding/removing at least virtio-net pci
devices which are quite the norm in cloud environment with QEMU/KVM
netdev_add bridge,id=wan2,br=br-wan,helper=/home/yousong/.usr/libexec/qemu-bridge-helper
device_add virtio-net-pci,id=devwan2,netdev=wan2,mac=11:22:33:22:11:00
The config was formed by selecting target x86/64 first, then select
CONFIG_HOTPLUG_PCI and CONFIG_HOTPLUG_PCI_ACPI with
make kernel_menuconfig CONFIG_TARGET=subtarget
The following text tries to explain how the current config was formed
1. CONFIG_PCI_LABEL and CONFIG_ATA_PIIX were removed because they were
already enabled in x86 platform config
2. CONFIG_ATA_SFF was removed because it was enabled in generic config
3. CONFIG_NLS was removed because it will be selected by CONFIG_PCI_LABEL
Signed-off-by: Yousong Zhou <yszhou4tech@gmail.com>
CPU frequency scaling enables the operating system to scale the CPU
frequency up or down in order to save power. CPU frequencies can be
scaled automatically depending on the system load, in response to ACPI
events, or manually by userspace programs.
Signed-off-by: Lucian Cristian <lucian.cristian@gmail.com>
