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| author | Rusty Russell <rusty@rustcorp.com.au> | 2015-03-24 02:21:39 +0100 |
|---|---|---|
| committer | Rusty Russell <rusty@rustcorp.com.au> | 2015-03-24 02:22:08 +0100 |
| commit | 2f921b5bb0511fb698681d8ef35c48be7a9116bf (patch) | |
| tree | e4f07e4d66f47c7af9142bf13e5851a77acec77f /drivers/lguest/hypercalls.c | |
| parent | lguest: simplify lguest_iret (diff) | |
| download | linux-2f921b5bb0511fb698681d8ef35c48be7a9116bf.tar.xz linux-2f921b5bb0511fb698681d8ef35c48be7a9116bf.zip | |
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>
Diffstat (limited to 'drivers/lguest/hypercalls.c')
| -rw-r--r-- | drivers/lguest/hypercalls.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/lguest/hypercalls.c b/drivers/lguest/hypercalls.c index 1219af493c0f..19a32280731d 100644 --- a/drivers/lguest/hypercalls.c +++ b/drivers/lguest/hypercalls.c @@ -211,10 +211,9 @@ static void initialize(struct lg_cpu *cpu) /* * The Guest tells us where we're not to deliver interrupts by putting - * the range of addresses into "struct lguest_data". + * the instruction address into "struct lguest_data". */ - if (get_user(cpu->lg->noirq_start, &cpu->lg->lguest_data->noirq_start) - || get_user(cpu->lg->noirq_end, &cpu->lg->lguest_data->noirq_end)) + if (get_user(cpu->lg->noirq_iret, &cpu->lg->lguest_data->noirq_iret)) kill_guest(cpu, "bad guest page %p", cpu->lg->lguest_data); /* |