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| author | Rusty Russell <rusty@rustcorp.com.au> | 2015-02-11 15:28:01 +1030 |
|---|---|---|
| committer | Rusty Russell <rusty@rustcorp.com.au> | 2015-02-11 16:47:46 +1030 |
| commit | d9bab50aa46ce46dd4537d455eb13b200cdac516 (patch) | |
| tree | efa139a078f1842b1388e54daa67896734e64a0b /drivers/lguest/core.c | |
| parent | 00f8d546512a7661d43600625f87a42a98cae26a (diff) | |
| download | linux-d9bab50aa46ce46dd4537d455eb13b200cdac516.tar.gz linux-d9bab50aa46ce46dd4537d455eb13b200cdac516.tar.bz2 linux-d9bab50aa46ce46dd4537d455eb13b200cdac516.zip | |
lguest: remove NOTIFY call and eventfd facility.
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 <rusty@rustcorp.com.au>
Diffstat (limited to 'drivers/lguest/core.c')
| -rw-r--r-- | drivers/lguest/core.c | 20 |
1 files changed, 5 insertions, 15 deletions
diff --git a/drivers/lguest/core.c b/drivers/lguest/core.c index 9159dbc583f6..7dc93aa004c8 100644 --- a/drivers/lguest/core.c +++ b/drivers/lguest/core.c @@ -225,22 +225,12 @@ int run_guest(struct lg_cpu *cpu, unsigned long __user *user) if (cpu->hcall) do_hypercalls(cpu); - /* - * It's possible the Guest did a NOTIFY hypercall to the - * Launcher. - */ + /* Do we have to tell the Launcher about a trap? */ if (cpu->pending.trap) { - /* - * Does it just needs to write to a registered - * eventfd (ie. the appropriate virtqueue thread)? - */ - if (!send_notify_to_eventfd(cpu)) { - /* OK, we tell the main Launcher. */ - if (copy_to_user(user, &cpu->pending, - sizeof(cpu->pending))) - return -EFAULT; - return sizeof(cpu->pending); - } + if (copy_to_user(user, &cpu->pending, + sizeof(cpu->pending))) + return -EFAULT; + return sizeof(cpu->pending); } /* |