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| author | Balaji Rao <balajirrao@gmail.com> | 2007-12-28 14:26:24 +0530 |
|---|---|---|
| committer | Rusty Russell <rusty@rustcorp.com.au> | 2008-01-30 22:50:04 +1100 |
| commit | ec04b13f67be3c90b38c625f4b8bdfea54c1ff60 (patch) | |
| tree | 7819de21361fdd65487ef75ea9f2b774e4203f83 /drivers/lguest | |
| parent | 5c55841d16dbf7c759fa6fb2ecc5e615b86d17db (diff) | |
| download | linux-ec04b13f67be3c90b38c625f4b8bdfea54c1ff60.tar.gz linux-ec04b13f67be3c90b38c625f4b8bdfea54c1ff60.tar.bz2 linux-ec04b13f67be3c90b38c625f4b8bdfea54c1ff60.zip | |
lguest: Reboot support
Reboot Implemented
(Prevent fd leak, fix style and fix documentation --RR)
Signed-off-by: Balaji Rao <balajirrao@gmail.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Diffstat (limited to 'drivers/lguest')
| -rw-r--r-- | drivers/lguest/core.c | 2 | ||||
| -rw-r--r-- | drivers/lguest/hypercalls.c | 6 |
2 files changed, 6 insertions, 2 deletions
diff --git a/drivers/lguest/core.c b/drivers/lguest/core.c index f10abc8d7635..c1069bceba11 100644 --- a/drivers/lguest/core.c +++ b/drivers/lguest/core.c @@ -235,6 +235,8 @@ int run_guest(struct lguest *lg, unsigned long __user *user) lguest_arch_handle_trap(lg); } + if (lg->dead == ERR_PTR(-ERESTART)) + return -ERESTART; /* The Guest is dead => "No such file or directory" */ return -ENOENT; } diff --git a/drivers/lguest/hypercalls.c b/drivers/lguest/hypercalls.c index b478affe8f91..05fad6fa8049 100644 --- a/drivers/lguest/hypercalls.c +++ b/drivers/lguest/hypercalls.c @@ -41,8 +41,8 @@ static void do_hcall(struct lguest *lg, struct hcall_args *args) * do that. */ kill_guest(lg, "already have lguest_data"); break; - case LHCALL_CRASH: { - /* Crash is such a trivial hypercall that we do it in four + case LHCALL_SHUTDOWN: { + /* Shutdown is such a trivial hypercall that we do it in four * lines right here. */ char msg[128]; /* If the lgread fails, it will call kill_guest() itself; the @@ -50,6 +50,8 @@ static void do_hcall(struct lguest *lg, struct hcall_args *args) __lgread(lg, msg, args->arg1, sizeof(msg)); msg[sizeof(msg)-1] = '\0'; kill_guest(lg, "CRASH: %s", msg); + if (args->arg2 == LGUEST_SHUTDOWN_RESTART) + lg->dead = ERR_PTR(-ERESTART); break; } case LHCALL_FLUSH_TLB: |