linux-toradex.git/include/linux/lguest_launcher.h, branch v4.4.4

lguest: remove NOTIFY call and eventfd facility.

2015-02-11T06:17:46+00:00

Disappointing, as this was kind of neat (especially getting to use RCU
to manage the address -> eventfd mapping).  But now the devices are PCI
handled in userspace, we get rid of both the NOTIFY hypercall and
the interface to connect an eventfd.

Signed-off-by: Rusty Russell

lguest: remove lguest bus definitions from header.

2015-02-11T06:17:42+00:00

Signed-off-by: Rusty Russell

lguest: add infrastructure for userspace to deliver a trap to the guest.

2015-02-11T06:17:30+00:00

This is required for instruction emulation to move to userspace.

Signed-off-by: Rusty Russell

lguest: write more information to userspace about pending traps.

2015-02-11T06:17:30+00:00

This is preparation for userspace handling MMIO and ioport accesses.

Signed-off-by: Rusty Russell

lguest: add operations to get/set a register from the Launcher.

2015-02-11T06:17:29+00:00

We use the ptrace API struct, and we currently don't let them set
anything but the normal registers (we'd have to filter the others).

Signed-off-by: Rusty Russell

lguest: fix comment style

2009-07-30T06:33:45+00:00

I don't really notice it (except to begrudge the extra vertical
space), but Ingo does.  And he pointed out that one excuse of lguest
is as a teaching tool, it should set a good example.

Signed-off-by: Rusty Russell 
Cc: Ingo Molnar

lguest: remove obsolete LHREQ_BREAK call

2009-06-12T12:57:11+00:00

We no longer need an efficient mechanism to force the Guest back into
host userspace, as each device is serviced without bothering the main
Guest process (aka. the Launcher).

Signed-off-by: Rusty Russell

lguest: use eventfds for device notification

2009-06-12T12:57:10+00:00

Currently, when a Guest wants to perform I/O it calls LHCALL_NOTIFY with
an address: the main Launcher process returns with this address, and figures
out what device to run.

A far nicer model is to let processes bind an eventfd to an address: if we
find one, we simply signal the eventfd.

Signed-off-by: Rusty Russell 
Cc: Davide Libenzi

lguest: move the initial guest page table creation code to the host

2008-12-29T22:56:11+00:00

This patch moves the initial guest page table creation code to the host,
so the launcher keeps working with PAE enabled configs.

Signed-off-by: Matias Zabaljauregui 
Signed-off-by: Rusty Russell

virtio: use LGUEST_VRING_ALIGN instead of relying on pagesize

2008-12-29T22:56:02+00:00

This doesn't really matter, since lguest is i386 only at the moment,
but we could actually choose a different value.  (lguest doesn't have
a guarenteed ABI).

Signed-off-by: Rusty Russell