| Commit message (Collapse) | Author | Age | Files | Lines |
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* git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-lguest: (45 commits)
Use "struct boot_params" in example launcher
Loading bzImage directly.
Revert lguest magic and use hook in head.S
Update lguest documentation to reflect the new virtual block device name.
generalize lgread_u32/lgwrite_u32.
Example launcher handle guests not being ready for input
Update example launcher for virtio
Lguest support for Virtio
Remove old lguest I/O infrrasructure.
Remove old lguest bus and drivers.
Virtio helper routines for a descriptor ringbuffer implementation
Module autoprobing support for virtio drivers.
Virtio console driver
Block driver using virtio.
Net driver using virtio
Virtio interface
Boot with virtual == physical to get closer to native Linux.
Allow guest to specify syscall vector to use.
Rename "cr3" to "gpgdir" to avoid x86-specific naming.
Pagetables to use normal kernel types
...
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Version 2.07 of the boot protocol uses 0x23C for the hardware_subarch
field, that for lguest is "1". This allows us to use the standard
boot entry point rather than the "GenuineLguest" string hack.
The standard entry point also clears the BSS and copies the boot parameters
and commandline for us, saving more code.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
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This makes lguest able to use the virtio devices.
We change the device descriptor page from a simple array to a variable
length "type, config_len, status, config data..." format, and
implement virtio_config_ops to read from that config data.
We use the virtio ring implementation for an efficient Guest <-> Host
virtqueue mechanism, and the new LHCALL_NOTIFY hypercall to kick the
host when it changes.
We also use LHCALL_NOTIFY on kernel addresses for very very early
console output. We could have another hypercall, but this hack works
quite well.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
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This gets rid of the lguest bus, drivers and DMA mechanism, to make
way for a generic virtio mechanism.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
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These helper routines supply most of the virtqueue_ops for hypervisors
which want to use a ring for virtio. Unlike the previous lguest
implementation:
1) The rings are variable sized (2^n-1 elements).
2) They have an unfortunate limit of 65535 bytes per sg element.
3) The page numbers are always 64 bit (PAE anyone?)
4) They no longer place used[] on a separate page, just a separate
cacheline.
5) We do a modulo on a variable. We could be tricky if we cared.
6) Interrupts and notifies are suppressed using flags within the rings.
Users need only get the ring pages and provide a notify hook (KVM
wants the guest to allocate the rings, lguest does it sanely).
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Cc: Dor Laor <dor.laor@qumranet.com>
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1) This allows us to get alot closer to booting bzImages.
2) It means we don't have to know page_offset.
3) The Guest needs to modify the boot pagetables to create the
PAGE_OFFSET mapping before jumping to C code.
4) guest_pa() walks the page tables rather than using page_offset.
5) We don't use page_offset to figure out whether to emulate: it was
always kinda quesationable, and won't work for instructions done
before remapping (bzImage unpacking in particular).
6) We still want the kernel address for tlb flushing: have the initial
hypercall give us that, too.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
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(Based on Ron Minnich's LGUEST_PLAN9_SYSCALL patch).
This patch allows Guests to specify what system call vector they want,
and we try to reserve it. We only allow one non-Linux system call
vector, to try to avoid DoS on the Host.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
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Clean up the hypercall code to make the code in hypercalls.c
architecture independent. First process the common hypercalls and
then call lguest_arch_do_hcall() if the call hasn't been handled.
Rename struct hcall_ring to hcall_args.
This patch requires the previous patch which reorganize the layout of
struct lguest_regs on i386 so they match the layout of struct
hcall_args.
Signed-off-by: Jes Sorensen <jes@sgi.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
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Separate i386 architecture specific from core.c and move it to
x86/core.c and add x86/lguest.h header file to match.
Signed-off-by: Jes Sorensen <jes@sgi.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
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Lguest has two sides: host support (to launch guests) and guest
support (replacement boot path and paravirt_ops). This moves the
guest side to arch/x86/lguest where it's closer to related code.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Cc: Andi Kleen <ak@suse.de>
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1) Group all the "guest OS" support options together, under a PARAVIRT_GUEST
menu.
2) Make those options select CONFIG_PARAVIRT, as suggested by Andi.
3) Make kconfig help titles consistent.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Cc: Andi Kleen <ak@suse.de>
Cc: Zach Amsden <zach@vmware.com>
Cc: Jeremy Fitzhardinge <jeremy@goop.org>
Cc: Chris Wright <chrisw@sous-sol.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc:
[POWERPC] Add Vitaly Bordug as PPC8xx maintainer
[POWERPC] 4xx: Enable EMAC on Bamboo board
[POWERPC] 4xx: Enable EMAC for PPC405 Walnut board
[POWERPC] 4xx: Fix timebase clock selection on Walnut
[POWERPC] 4xx: Enable EMAC on the PPC 440GP Ebony board
[POWERPC] 4xx: Split early debug output and early boot console for 44x
[POWERPC] 4xx: Enable NEW EMAC support for Sequoia 440EPx.
[POWERPC] 4xx: Add RGMII support for Sequoia 440EPx
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master.kernel.org:/pub/scm/linux/kernel/git/jwboyer/powerpc-4xx into merge
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Fix some device tree omissions that prevented the new EMAC driver from
setting up ethernet on the Bamboo board correctly and update the Bamboo
defconfig.
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
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This patch enables the ibm_newemac driver for the Walnut board. It fixes the
device tree for the walnut board to order the MAL interrupts correctly and
adds the local-mac-address property to the EMAC node. The bootwrapper is also
updated to extract the MAC address from the OpenBIOS offset where it is stored.
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
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The current bootwrapper fails to set the timebase clock to the CPU clock
which causes the time to increment incorrectly. This fixes it by using the
correct #define for the CPC0_CR1 register.
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
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Update the Ebony defconfig to enable the ibm_newemac driver.
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
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Currently there's no way to enable early boot console on PowerPC 44x
not specifying uart's physical address in kernel config, which is used
for very early debug messages. This patch splits very early debug output
(which needs uart physical address in kernel config) and early boot console
(which searches for uarts in the device tree using find_legacy_serial_ports).
We enable early boot console for all 44x processors, while (dangerous)
early debug is user-selectable.
Signed-off-by: Valentine Barshak <vbarshak@ru.mvista.com>
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
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This patch enables NEW EMAC support for PowerPC 440EPx Sequoia board.
Signed-off-by: Valentine Barshak <vbarshak@ru.mvista.com>
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
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This adds RGMII support to Sequoia DTS and sets correct phy-mode
for EMACs. According to Sequoia datasheet, both ethernet ports
are connected to RGMII interface, while ZMII is used only for MDIO.
Signed-off-by: Valentine Barshak <vbarshak@ru.mvista.com>
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
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ssh://master.kernel.org/pub/scm/linux/kernel/git/hskinnemoen/avr32-2.6
* 'for-linus' of ssh://master.kernel.org/pub/scm/linux/kernel/git/hskinnemoen/avr32-2.6:
[AVR32] ARRAY_SIZE() cleanup
[AVR32] Implement at32_add_device_cf()
[AVR32] Implement more at32_add_device_foo() functions
[AVR32] Fix a couple of sparse warnings
[AVR32] Wire up AT73C213 sound driver on ATSTK1000 board
[AVR32] Platform code for pata_at32
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Signed-off-by: Alejandro Martinez Ruiz <alex@flawedcode.org>
Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
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Implement at32_add_device_cf() which will add a platform_device for
the at32_cf driver (not merged yet). Separate out most of the
at32_add_device_ide() code and use it to implement
at32_add_device_cf() as well.
This changes the API in the following ways:
* The board code must initialize data->cs to the chipselect ID to
use before calling any of these functions.
* The board code must use GPIO_PIN_NONE to indicate unused CF pins.
Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
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Implement functions for adding platform devices for TWI, MCI, AC97C
and ABDAC. They may need to be modified to cope with platform data,
etc. when the corresponding drivers are ready to be merged, but such
changes are much less likely to conflict than adding support for a
whole new type of device.
Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
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Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
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Signed-off-by: Hans-Christian Egtvedt <hcegtvedt@atmel.com>
Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
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This patch adds platform code for PATA devices on the AP7000.
[hskinnemoen@atmel.com: board code left out for now since stk1000
doesn't support IDE out of the box]
Signed-off-by: Kristoffer Nyborg Gregertsen <kngregertsen@norway.atmel.com>
Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
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* 'sg' of git://git.kernel.dk/linux-2.6-block:
sparc64: zero out dma_length
fvr32: fixup dma-mapping for new sg layout
sh/sh64: fixup dma-mapping for new sg layout
Fix sctp compile
m68knommu: remove sg_address()
frv: update comment in scatterlist to reflect new setup
blackfin: remove sg_address()
arm: sg fallout
mips: sg_page() fallout
alpha: sg_virt() fallout
intel-iommu: fix sg_page()
parisc: fix sg_page() fallout
ide: build fix
net: fix xfrm build - missing scatterlist.h include
[BLOCK] blk_rq_map_sg: force clear termination bit
[BLOCK] Don't clear sg_dma_len/addr() in blk_rq_map_sg()
s390 zfcp: sg fixups
powerpc: Fix fallout from sg_page() changes
IB/ehca: Fix sg_page() fallout
arm: build fix
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zero out dma_length in the entry immediately following the last mapped
entry for unmap_sg.
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
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Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
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Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
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arch/parisc/kernel/pci-dma.c: In function 'pa11_dma_map_sg':
arch/parisc/kernel/pci-dma.c:487: error: 'struct scatterlist' has no member named 'page'
arch/parisc/kernel/pci-dma.c: In function 'pa11_dma_unmap_sg':
arch/parisc/kernel/pci-dma.c:508: error: 'struct scatterlist' has no member named 'page'
arch/parisc/kernel/pci-dma.c:508: error: 'struct scatterlist' has no member named 'page'
arch/parisc/kernel/pci-dma.c: In function 'pa11_dma_sync_sg_for_cpu':
arch/parisc/kernel/pci-dma.c:535: error: 'struct scatterlist' has no member named 'page'
arch/parisc/kernel/pci-dma.c:535: error: 'struct scatterlist' has no member named 'page'
arch/parisc/kernel/pci-dma.c: In function 'pa11_dma_sync_sg_for_device':
arch/parisc/kernel/pci-dma.c:545: error: 'struct scatterlist' has no member named 'page'
arch/parisc/kernel/pci-dma.c:545: error: 'struct scatterlist' has no member named 'page'
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
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arch/arm/common/dmabounce.c: In function 'dma_map_sg':
arch/arm/common/dmabounce.c:445: error: implicit declaration of function 'sg_page'
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
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Reduce the function pointer mess of the m68knommu timer code by calling
directly to the local hardware's timer setup, and expose the local
common timer interrupt handler to the lower level hardware timer.
Ultimately this will save definitions of all these functions across all
the platform code to setup the function pointers (which for any given
m68knommu CPU family member can be only one set of hardware timer
functions).
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Remove build reference to arch/m68knommu/boot directory, it doesn't
exist.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Remove use of undefined symbols CONFIG_TELOS, CONFIG_M68EZ328ADS
and CONFIG_ALMA_ANS.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Fix system call restart handling. We can call directly to the
restart handler, no need to back track through trap that isn't
even implemented on m68knommu.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Add make support for the Savant/Rosie1 board.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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There is no separate stack region addresses to print at startup time,
so remove it from the debug listing
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Add configure support for the Savant/Rosie1 board.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Updated defconfig with new options for m68knommu.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Fix the system call code for handling syscall tracing, so strace
and gdbserver work properly.
This fix originally developed by Philippe De Muyter and Stuart Hughes.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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master.kernel.org:/pub/scm/linux/kernel/git/cooloney/blackfin-2.6
* 'for-linus' of master.kernel.org:/pub/scm/linux/kernel/git/cooloney/blackfin-2.6:
Blackfin arch: use KBUILD_CFLAGS and KBUILD_AFLAGS in Makefile
Blackfin arch: Javier Herrer writes: fix building when icache and dcache is disabled
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Signed-off-by: Bryan Wu <bryan.wu@analog.com>
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disabled
Signed-off-by: Mike Frysinger <michael.frysinger@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
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* 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6:
[S390] 4level-fixup cleanup
[S390] Cleanup page table definitions.
[S390] Introduce follow_table in uaccess_pt.c
[S390] Remove unused user_seg from thread structure.
[S390] tlb flush fix.
[S390] kernel: Fix dump on panic for DASDs under LPAR.
[S390] struct class_device -> struct device conversion.
[S390] cio: Fix incomplete commit for uevent suppression.
[S390] cio: Use to_channelpath() for device to channel path conversion.
[S390] Add per-cpu idle time / idle count sysfs attributes.
[S390] Update default configuration.
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Get independent from asm-generic/4level-fixup.h
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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- De-confuse the defines for the address-space-control-elements
and the segment/region table entries.
- Create out of line functions for page table allocation / freeing.
- Simplify get_shadow_xxx functions.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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Define and use follow_table inline in uaccess_pt.c to simplify
the code.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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