linux-toradex.git/drivers/lguest/segments.c, branch v3.11

lguest: switch segment-voodoo-numbers to readable symbols

2012-01-12T05:14:47+00:00

When studying lguest's x86 segment descriptor code, it is not longer
necessary to have the Intel x86 architecture manual open on the page
with the segment descriptor illustration to understand the crazy
numbers assigned to both descriptor structure halves a/b.
Now the struct desc_struct's fields, like suggested by
Glauber de Oliveira Costa in 2008, are used.

Signed-off-by: Jacek Galowicz 
Signed-off-by: Rusty Russell

lguest: fix bug in setting guest GDT entry

2010-01-04T20:33:33+00:00

We kill the guest, but then we blatt random stuff.

Reported-by: Dan Carpenter 
Signed-off-by: Rusty Russell 
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds

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: beyond ARRAY_SIZE of cpu->arch.gdt

2009-06-12T12:57:04+00:00

Do not go beyond ARRAY_SIZE of cpu->arch.gdt

Signed-off-by: Roel Kluin 
Signed-off-by: Rusty Russell

lguest: fix guest crash on non-linear addresses in gdt pvops

2009-04-19T13:44:01+00:00

Fixes guest crash 'lguest: bad read address 0x4800000 len 256'

The new per-cpu allocator ends up handing a non-linear address to
write_gdt_entry.  We do __pa() on it, and hand it to the host, which
kills us.

I've long wanted to make the hypercall "LOAD_GDT_ENTRY" to match the IDT
code, but had no pressing reason until now.

Signed-off-by: Rusty Russell 
Cc: lguest@ozlabs.org

lguest: use bool instead of int

2009-03-30T11:25:25+00:00

Impact: clean up

Rusty told me, some time ago, that he had become a fan of "bool".
So, here are some replacements.

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

lguest: get rid of lg variable assignments

2008-01-30T11:50:18+00:00

We can save some lines of code by getting rid of
*lg = cpu... lines of code spread everywhere by now.

Signed-off-by: Glauber de Oliveira Costa 
Signed-off-by: Rusty Russell

lguest: move changed bitmap to lg_cpu

2008-01-30T11:50:17+00:00

events represented in the 'changed' bitmap are per-cpu, not per-guest.
move it to the lg_cpu structure

Signed-off-by: Glauber de Oliveira Costa 
Signed-off-by: Rusty Russell

lguest: replace lguest_arch with lg_cpu_arch.

2008-01-30T11:50:11+00:00

The fields found in lguest_arch are not really per-guest,
but per-cpu (gdt, idt, etc). So this patch turns lguest_arch
into lg_cpu_arch.

It makes sense to have a per-guest per-arch struct, but this
can be addressed later, when the need arrives.

Signed-off-by: Glauber de Oliveira Costa 
Signed-off-by: Rusty Russell

lguest: documentation update

2007-10-25T05:02:50+00:00

Went through the documentation doing typo and content fixes.  This
patch contains only comment and whitespace changes.

Signed-off-by: Rusty Russell