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2007-10-23Merge master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6Linus Torvalds1-2/+0
* master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (39 commits) [SCSI] qla2xxx: Update version number to 8.02.00-k5. [SCSI] qla2xxx: Correct display of ISP serial-number. [SCSI] qla2xxx: Correct residual-count handling discrepancies during UNDERRUN handling. [SCSI] qla2xxx: Make driver (mostly) legacy I/O port free. [SCSI] qla2xxx: Fix issue where final flash-segment updates were falling into the slow-path write handler. [SCSI] qla2xxx: Handle unaligned sector writes during NVRAM/VPD updates. [SCSI] qla2xxx: Defer explicit interrupt-polling processing to init-time scenarios. [SCSI] qla2xxx: Resync with latest HBA SSID specification -- 2.2u. [SCSI] sym53c8xx: Remove sym_xpt_async_sent_bdr [SCSI] sym53c8xx: Remove pci_dev pointer from sym_shcb [SCSI] sym53c8xx: Make interrupt handler capable of returning IRQ_NONE [SCSI] sym53c8xx: Get rid of IRQ_FMT and IRQ_PRM [SCSI] sym53c8xx: Use scmd_printk where appropriate [SCSI] sym53c8xx: Simplify DAC DMA handling [SCSI] sym53c8xx: Remove tag_ctrl module parameter [SCSI] sym53c8xx: Remove io_ws, mmio_ws and ram_ws elements [SCSI] sym53c8xx: Remove ->device_id [SCSI] sym53c8xx: Use pdev->revision [SCSI] sym53c8xx: PCI Error Recovery support [SCSI] sym53c8xx: Stop overriding scsi_done ...
2007-10-23Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds3-7/+9
* 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm: [ARM] 4630/1: Fix the vector stride of the double vector instruction. [ARM] 4629/1: Fix VFP emulation code to clear all exception flags of FPEXC [ARM] 4613/1: pxa300: MFP typo fix
2007-10-23x86: Add HPET force support for MCP55 (nForce 5) chipsetsCarlos Corbacho1-0/+18
Add support to force_hpet for all known MCP55 (nForce 5) chipset LPC bridges. These are the untested nForce 5 chips (taken from Mikko's original patch, and checked against pci.ids). Signed-off-by: Carlos Corbacho <cathectic@gmail.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> arch/x86/kernel/quirks.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+)
2007-10-23x86: Force enable HPET for CK804 (nForce 4) chipsetsCarlos Corbacho1-1/+36
This patch adds a quirk from LinuxBIOS to force enable HPET on the nVidia CK804 (nForce 4) chipset. This quirk can very likely support more than just nForce 4 (LinuxBIOS use the same code for nForce 5), and possibly nForce 3, but I don't have those chipsets, so cannot add and test them. Tested on an Abit KN9 (CK804). Signed-off-by: Carlos Corbacho <cathectic@gmail.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Documentation/kernel-parameters.txt | 3 +- arch/x86/kernel/quirks.c | 37 +++++++++++++++++++++++++++++++++++- 2 files changed, 38 insertions(+), 2 deletions(-)
2007-10-23x86: clean up setup.h and the boot codeH. Peter Anvin3-9/+2
Make <asm/setup.h> usable by the boot code. Clean up vestiges of the old command-line protocol from setup.h and head_32.S (it is still supported from the boot loader point of view, since it is converted to the new command-line protocol by the boot code.) Signed-off-by: H. Peter Anvin <hpa@zytor.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2007-10-23x86: Save registers in saved_context during suspend and hibernationRafael J. Wysocki4-89/+118
During hibernation and suspend on x86_64 save CPU registers in the saved_context structure rather than in a handful of separate variables. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2007-10-23x86: whitespace cleanup of mce_64.cThomas Gleixner1-78/+86
Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2007-10-23x86: consolidate the cpu/ related code usageThomas Gleixner5-14/+6
The x86_64 arch/x86/kernel/Makefile uses references into arch/x86/kernel/cpu/... to use code from there. Unifiy it with the nicely structured i386 way and reuse the existing subdirectory make rules. Also move the machine check related source into ...kernel/cpu/mcheck, where the other machine check related code is. No code change. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2007-10-23x86: prepare consolidation of cpu/ related code usageThomas Gleixner2-4/+2
Move mce.c to mce_32.c to allow the later move of the x86_64 mce.c from arch/x86/kernel/ to ...kernel/cpu/mcheck No code change. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2007-10-23x86: prepare consolidation of cpu/ related MakefilesThomas Gleixner2-14/+17
Prepare the makefiles in x86/kernel/cpu and x86/kernel/cpu/mcheck to be used by the x86_64 build as well. No code change. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2007-10-23x86: Unify arch/x86/kernel/acpi MakefilesThomas Gleixner3-18/+6
Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2007-10-23x86: merge arch/x86/crypto MakefilesThomas Gleixner3-29/+15
Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2007-10-23x86: Add BITS to allow simple Makefile sharingThomas Gleixner2-0/+12
Preperatory patch to simplify the sharing of Makefiles in arch/x86. Linus came up with this during a discussion about the ugliness of ifeq($CONFIG_X86_32),y) and obj-$(CONFIG_X86_32) in the shared Makefiles. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2007-10-23x86: unify crash_32/64.cHiroshi Shimamoto4-139/+11
Most of contents in crash are same. Signed-off-by: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2007-10-23x86: add lapic_shutdown for x86_64Hiroshi Shimamoto1-0/+14
Preperatory patch to allow crash_32/64.c merging Signed-off-by: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2007-10-23x86: ARRAY_SIZE cleanupAlejandro Martinez Ruiz2-5/+3
Signed-off-by: Alejandro Martinez Ruiz <alex@flawedcode.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2007-10-23x86: fix more TSC clock source calibration errorsDave Johnson1-14/+20
The previous patch wasn't correctly handling the 'count' variable. If a CPU gave bad results on the 1st or 2nd run but good results on the 3rd, it wouldn't do the correct thing. No idea if any such CPU exists, but the patch below handles that case by discarding the bad runs. If a bad result (too quick, or too slow) occurs on any of the 3 runs it will be discarded. Also updated some comments to explain what's going on. Signed-off-by: Dave Johnson <djohnson@sw.starentnetworks.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2007-10-23x86: fix TSC clock source calibration errorDave Johnson1-3/+2
I ran into this problem on a system that was unable to obtain NTP sync because the clock was running very slow (over 10000ppm slow). ntpd had declared all of its peers 'reject' with 'peer_dist' reason. On investigation, the tsc_khz variable was significantly incorrect causing xtime to run slow. After a reboot tsc_khz was correct so I did a reboot test to see how often the problem occurred: Test was done on a 2000 Mhz Xeon system. Of 689 reboots, 8 of them had unacceptable tsc_khz values (>500ppm): range of tsc_khz # of boots % of boots ---------------- ---------- ---------- < 1999750 0 0.000% 1999750 - 1999800 21 3.048% 1999800 - 1999850 166 24.128% 1999850 - 1999900 241 35.029% 1999900 - 1999950 211 30.669% 1999950 - 2000000 42 6.105% 2000000 - 2000000 0 0.000% 2000050 - 2000100 0 0.000% [...] 2000100 - 2015000 1 0.145% << BAD 2015000 - 2030000 6 0.872% << BAD 2030000 - 2045000 1 0.145% << BAD 2045000 < 0 0.000% The worst boot was 2032.577 Mhz, over 1.5% off! It appears that on rare occasions, mach_countup() is taking longer to complete than necessary. I suspect that this is caused by the CPU taking a periodic SMI interrupt right at the end of the 30ms calibration loop. This would cause the loop to delay while the SMI BIOS hander runs. The resulting TSC value is beyond what it actually should be resulting in a higher tsc_khz. The below patch makes native_calculate_cpu_khz() take the best (shortest duration, lowest khz) run of it's 3 calibration loops. If a SMI goes off causing a bad result (long duration, higher khz) it will be discarded. With the patch applied, 300 boots of the same system produce good results: range of tsc_khz # of boots % of boots ---------------- ---------- ---------- < 1999750 0 0.000% 1999750 - 1999800 30 10.000% 1999800 - 1999850 166 55.333% 1999850 - 1999900 89 29.667% 1999900 - 1999950 15 5.000% 1999950 < 0 0.000% Problem was found and tested against 2.6.18. Patch is against 2.6.22. Signed-off-by: Dave Johnson <djohnson@sw.starentnetworks.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2007-10-23x86: add instrumentation menuAdrian Bunk3-17/+4
It seems commit 09cadedbdc01f1a4bea1f427d4fb4642eaa19da9 was incomplete due to a clash with the x86 architecture merge. Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2007-10-23Merge git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-lguestLinus Torvalds8-12/+1229
* 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 ...
2007-10-23Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpcLinus Torvalds11-146/+230
* '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
2007-10-23Merge branch 'for-linus' of ssh://master.kernel.org/pub/scm/linux/kernel/git/hskinnemoen/avr32-2.6Linus Torvalds5-4/+406
* '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
2007-10-23Merge branch 'sg' of git://git.kernel.dk/linux-2.6-blockLinus Torvalds5-0/+9
* '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
2007-10-23m68knommu: cleanup m68knommu timer codeGreg Ungerer15-137/+29
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>
2007-10-23m68knommu: fix make archcleanGreg Ungerer1-1/+1
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>
2007-10-23m68knommu: remove use of undefined symbols in setup.cGreg Ungerer1-12/+0
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>
2007-10-23m68knommu: fix syscall restart handlingGreg Ungerer1-9/+1
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>
2007-10-23m68knommu: add make support for Savant/Rosie1 boardWilson Callan1-0/+1
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>
2007-10-23m68knommu: no separate stack region to report at startupGreg Ungerer1-4/+2
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>
2007-10-23m68knommu: add config support for Savant/Rosie1 boardWilson Callan1-1/+12
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>
2007-10-23m68knommu: updated defconfigGreg Ungerer1-211/+114
Updated defconfig with new options for m68knommu. Signed-off-by: Greg Ungerer <gerg@uclinux.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-23m68knommu: fix syscall tracingMatt Waddel1-1/+4
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>
2007-10-23Merge branch 'for-2.6.24' of master.kernel.org:/pub/scm/linux/kernel/git/jwboyer/powerpc-4xx into mergePaul Mackerras11-146/+230
2007-10-23sparc64: zero out dma_lengthFUJITA Tomonori1-0/+5
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>
2007-10-23mips: sg_page() falloutJens Axboe1-0/+1
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-10-23alpha: sg_virt() falloutJens Axboe1-0/+1
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-10-23[AVR32] ARRAY_SIZE() cleanupAlejandro Martinez Ruiz1-1/+1
Signed-off-by: Alejandro Martinez Ruiz <alex@flawedcode.org> Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
2007-10-23[AVR32] Implement at32_add_device_cf()Haavard Skinnemoen1-31/+102
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>
2007-10-23[AVR32] Implement more at32_add_device_foo() functionsHaavard Skinnemoen1-0/+208
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>
2007-10-23[AVR32] Fix a couple of sparse warningsHaavard Skinnemoen2-3/+3
Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
2007-10-23[AVR32] Wire up AT73C213 sound driver on ATSTK1000 boardHans-Christian Egtvedt1-0/+58
Signed-off-by: Hans-Christian Egtvedt <hcegtvedt@atmel.com> Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
2007-10-23[AVR32] Platform code for pata_at32Kristoffer Nyborg Gregertsen1-0/+65
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>
2007-10-23parisc: fix sg_page() falloutFUJITA Tomonori1-0/+1
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>
2007-10-23arm: build fixFUJITA Tomonori1-0/+1
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>
2007-10-23Revert lguest magic and use hook in head.SRusty Russell2-29/+5
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>
2007-10-23Lguest support for VirtioRusty Russell2-0/+26
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>
2007-10-23Remove old lguest bus and drivers.Rusty Russell1-41/+0
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>
2007-10-23Virtio helper routines for a descriptor ringbuffer implementationRusty Russell1-0/+1
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>
2007-10-23Boot with virtual == physical to get closer to native Linux.Rusty Russell3-10/+39
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>
2007-10-23Allow guest to specify syscall vector to use.Rusty Russell1-0/+1
(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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