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| author | Rusty Russell <rusty@rustcorp.com.au> | 2015-02-11 15:15:10 +1030 |
|---|---|---|
| committer | Rusty Russell <rusty@rustcorp.com.au> | 2015-02-11 16:47:33 +1030 |
| commit | 7313d5217e6b9817897172d6a6ff477bdc415ed6 (patch) | |
| tree | 448fc79d9048af296aeb6c6fbbf5da84dc6f7046 /drivers/lguest/lguest_user.c | |
| parent | d1c29465b8a52d8fc5a59aac92c6b206b69fe631 (diff) | |
| download | linux-7313d5217e6b9817897172d6a6ff477bdc415ed6.tar.gz linux-7313d5217e6b9817897172d6a6ff477bdc415ed6.tar.bz2 linux-7313d5217e6b9817897172d6a6ff477bdc415ed6.zip | |
lguest: add iomem region, where guest page faults get sent to userspace.
This lets us implement PCI.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Diffstat (limited to 'drivers/lguest/lguest_user.c')
| -rw-r--r-- | drivers/lguest/lguest_user.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/lguest/lguest_user.c b/drivers/lguest/lguest_user.c index be996d173615..c8b0e8575b44 100644 --- a/drivers/lguest/lguest_user.c +++ b/drivers/lguest/lguest_user.c @@ -385,7 +385,7 @@ static int initialize(struct file *file, const unsigned long __user *input) /* "struct lguest" contains all we (the Host) know about a Guest. */ struct lguest *lg; int err; - unsigned long args[3]; + unsigned long args[4]; /* * We grab the Big Lguest lock, which protects against multiple @@ -419,6 +419,7 @@ static int initialize(struct file *file, const unsigned long __user *input) /* Populate the easy fields of our "struct lguest" */ lg->mem_base = (void __user *)args[0]; lg->pfn_limit = args[1]; + lg->device_limit = args[3]; /* This is the first cpu (cpu 0) and it will start booting at args[2] */ err = lg_cpu_start(&lg->cpus[0], 0, args[2]); |