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| author | Rusty Russell <rusty@rustcorp.com.au> | 2007-10-22 11:24:10 +1000 |
|---|---|---|
| committer | Rusty Russell <rusty@rustcorp.com.au> | 2007-10-23 15:49:55 +1000 |
| commit | 15045275c32bf6d15d32c2eca8157be9c0ba6e45 (patch) | |
| tree | 32ef90c875b22cb1bbb94e38f557a690f1c0c6f8 /drivers/lguest/core.c | |
| parent | 0ca49ca946409f87a8cd0b14d5acb6dea58de6f3 (diff) | |
| download | blackbird-op-linux-15045275c32bf6d15d32c2eca8157be9c0ba6e45.tar.gz blackbird-op-linux-15045275c32bf6d15d32c2eca8157be9c0ba6e45.zip | |
Remove old lguest I/O infrrasructure.
This patch gets rid of the old lguest host I/O infrastructure and
replaces it with a single hypercall "LHCALL_NOTIFY" which takes an
address.
The main change is the removal of io.c: that mainly did inter-guest
I/O, which virtio doesn't yet support.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Diffstat (limited to 'drivers/lguest/core.c')
| -rw-r--r-- | drivers/lguest/core.c | 12 |
1 files changed, 4 insertions, 8 deletions
diff --git a/drivers/lguest/core.c b/drivers/lguest/core.c index 41b26e592d38..3aec29ec7715 100644 --- a/drivers/lguest/core.c +++ b/drivers/lguest/core.c @@ -202,13 +202,12 @@ int run_guest(struct lguest *lg, unsigned long __user *user) if (lg->hcall) do_hypercalls(lg); - /* It's possible the Guest did a SEND_DMA hypercall to the + /* It's possible the Guest did a NOTIFY hypercall to the * Launcher, in which case we return from the read() now. */ - if (lg->dma_is_pending) { - if (put_user(lg->pending_dma, user) || - put_user(lg->pending_key, user+1)) + if (lg->pending_notify) { + if (put_user(lg->pending_notify, user)) return -EFAULT; - return sizeof(unsigned long)*2; + return sizeof(lg->pending_notify); } /* Check for signals */ @@ -288,9 +287,6 @@ static int __init init(void) if (err) goto unmap; - /* The I/O subsystem needs some things initialized. */ - lguest_io_init(); - /* We might need to reserve an interrupt vector. */ err = init_interrupts(); if (err) |
