diff options
Diffstat (limited to 'drivers/lguest/lguest_user.c')
| -rw-r--r-- | drivers/lguest/lguest_user.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/lguest/lguest_user.c b/drivers/lguest/lguest_user.c index 3b92a61ba8d2..c4bfe5a2b6b7 100644 --- a/drivers/lguest/lguest_user.c +++ b/drivers/lguest/lguest_user.c @@ -88,6 +88,18 @@ static ssize_t read(struct file *file, char __user *user, size_t size,loff_t*o) return run_guest(lg, (unsigned long __user *)user); } +static int lg_cpu_start(struct lg_cpu *cpu, unsigned id, unsigned long start_ip) +{ + if (id >= NR_CPUS) + return -EINVAL; + + cpu->id = id; + cpu->lg = container_of((cpu - id), struct lguest, cpus[0]); + cpu->lg->nr_cpus++; + + return 0; +} + /*L:020 The initialization write supplies 4 pointer sized (32 or 64 bit) * values (in addition to the LHREQ_INITIALIZE value). These are: * @@ -134,6 +146,11 @@ static int initialize(struct file *file, const unsigned long __user *input) lg->mem_base = (void __user *)(long)args[0]; lg->pfn_limit = args[1]; + /* This is the first cpu */ + err = cpu_start(&lg->cpus[0], 0, args[3]); + if (err) + goto release_guest; + /* We need a complete page for the Guest registers: they are accessible * to the Guest and we can only grant it access to whole pages. */ lg->regs_page = get_zeroed_page(GFP_KERNEL); |