user/sven/linux.git/include/linux/lguest.h, branch tmp/leds/core

lguest: documentation update

2007-10-25T05:02:50Z

Went through the documentation doing typo and content fixes. This patch contains only comment and whitespace changes. Signed-off-by: Rusty Russell

Boot with virtual == physical to get closer to native Linux.

2007-10-23T05:49:54Z

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

Allow guest to specify syscall vector to use.

2007-10-23T05:49:53Z

(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

lguest.h declares a struct timespec, make it include linux/time.h

2007-10-23T05:49:52Z

Signed-off-by: Jes Sorensen Signed-off-by: Rusty Russell

Make hypercalls arch-independent.

2007-10-23T05:49:52Z

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 Signed-off-by: Rusty Russell

Remove fixed limit on number of guests, and lguests array.

2007-10-23T05:49:51Z

Back when we had all the Guest state in the switcher, we had a fixed array of them. This is no longer necessary. If we switch the network code to using random_ether_addr (46 bits is enough to avoid clashes), we can get rid of the concept of "guest id" altogether. Signed-off-by: Rusty Russell

Move lguest hcalls to arch-specific header

2007-10-23T05:49:49Z

Move architecture specific portion of lg_hcall code to asm-i386/lg_hcall.h and have it included from linux/lguest.h. [Changed to asm-i386/lguest_hcall.h so documentation finds it -RR] Signed-off-by: Jes Sorensen Signed-off-by: Rusty Russell Cc: Jes Sorensen

Provide timespec to guests rather than jiffies clock.

2007-07-29T02:54:33Z

A non-periodic clock_event_device and the "jiffies" clock don't mix well: tick_handle_periodic() can go into an infinite loop. Currently lguest guests use the jiffies clock when the TSC is unusable. Instead, make the Host write the current time into the lguest page on every interrupt. This doesn't cost much but is more precise and at least as accurate as the jiffies clock. It also gets rid of the GET_WALLCLOCK hypercall. Also, delay setting sched_clock until our clock is set up, otherwise the early printk timestamps can go backwards (not harmful, just ugly). Signed-off-by: Rusty Russell Signed-off-by: Linus Torvalds

lguest: documentation II: Guest

2007-07-26T18:35:17Z

Documentation: The Guest Signed-off-by: Rusty Russell Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

lguest: the host code

2007-07-19T17:04:52Z

This is the code for the "lg.ko" module, which allows lguest guests to be launched. [akpm@linux-foundation.org: update for futex-new-private-futexes] [akpm@linux-foundation.org: build fix] [jmorris@namei.org: lguest: use hrtimers] [akpm@linux-foundation.org: x86_64 build fix] Signed-off-by: Rusty Russell Cc: Andi Kleen Cc: Eric Dumazet Cc: Thomas Gleixner Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds