diff options
| author | Rusty Russell <rusty@rustcorp.com.au> | 2015-02-11 15:15:09 +1030 |
|---|---|---|
| committer | Rusty Russell <rusty@rustcorp.com.au> | 2015-02-11 16:47:30 +1030 |
| commit | 69a09dc1742ffbb3b02f3a1e03da4801e96452e9 (patch) | |
| tree | c9887c6b6150810ba103b76cf9d4376af3edd5e5 /drivers/lguest/hypercalls.c | |
| parent | 18c137371b2ea86d263b75665a4904a0b8872990 (diff) | |
lguest: write more information to userspace about pending traps.
This is preparation for userspace handling MMIO and ioport accesses.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Diffstat (limited to 'drivers/lguest/hypercalls.c')
| -rw-r--r-- | drivers/lguest/hypercalls.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/lguest/hypercalls.c b/drivers/lguest/hypercalls.c index 83511eb0923d..5dd1fb8a6610 100644 --- a/drivers/lguest/hypercalls.c +++ b/drivers/lguest/hypercalls.c @@ -118,7 +118,8 @@ static void do_hcall(struct lg_cpu *cpu, struct hcall_args *args) cpu->halted = 1; break; case LHCALL_NOTIFY: - cpu->pending_notify = args->arg1; + cpu->pending.trap = LGUEST_TRAP_ENTRY; + cpu->pending.addr = args->arg1; break; default: /* It should be an architecture-specific hypercall. */ @@ -189,7 +190,7 @@ static void do_async_hcalls(struct lg_cpu *cpu) * Stop doing hypercalls if they want to notify the Launcher: * it needs to service this first. */ - if (cpu->pending_notify) + if (cpu->pending.trap) break; } } @@ -280,7 +281,7 @@ void do_hypercalls(struct lg_cpu *cpu) * NOTIFY to the Launcher, we want to return now. Otherwise we do * the hypercall. */ - if (!cpu->pending_notify) { + if (!cpu->pending.trap) { do_hcall(cpu, cpu->hcall); /* * Tricky point: we reset the hcall pointer to mark the |