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4 Commits

Author SHA1 Message Date
Rusty Russell 2f921b5bb0 lguest: suppress interrupts for single insn, not range. 
The last patch reduced our interrupt-suppression region to one address,
so simplify the code somewhat.

Also, remove the obsolete undefined instruction ranges and the comment
which refers to lguest_guest.S instead of head_32.S.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-03-24 11:52:08 +10:30
Denys Vlasenko 7042cb4eb3 lguest: simplify lguest_iret 
Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
CC: lguest@lists.ozlabs.org
CC: x86@kernel.org
CC: linux-kernel@vger.kernel.org
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-03-24 11:52:08 +10:30
Rusty Russell 88ad1a147e lguest: fix pending interrupt test. 
Denys says:
  TEST with zero will always set ZF. Thus, "jnz send_interrupts" never jumps.

We get interrupts regularly enough that this didn't cause immediate problems.

Reported-by: Denys Vlasenko <vda.linux@googlemail.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-03-20 15:07:08 +10:30
Daniel Baluta 6865b32a86 lguest: rename i386_head.S 
Since commit 9a163ed8e0 (i386: move kernel) kernel/i386_head.S
was renamed to kernel/head_32.S. We do the same for lguest/i386_head.S.

Signed-off-by: Daniel Baluta <dbaluta@ixiacom.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2013-05-20 12:09:40 +09:30