diff options
| author | Tianyu Lan <Tianyu.Lan@microsoft.com> | 2021-10-25 08:21:09 -0400 |
|---|---|---|
| committer | Wei Liu <wei.liu@kernel.org> | 2021-10-28 11:22:23 +0000 |
| commit | d4dccf353db80e209f262e3973c834e6e48ba9a9 (patch) | |
| tree | 0cf40678937c1251255014bb7815106a99051f66 /drivers/uio | |
| parent | 810a521265023a1d5c6c081ea2d216bc63d422f5 (diff) | |
| download | lwn-d4dccf353db80e209f262e3973c834e6e48ba9a9.tar.gz lwn-d4dccf353db80e209f262e3973c834e6e48ba9a9.zip | |
Drivers: hv: vmbus: Mark vmbus ring buffer visible to host in Isolation VM
Mark vmbus ring buffer visible with set_memory_decrypted() when
establish gpadl handle.
Reviewed-by: Michael Kelley <mikelley@microsoft.com>
Signed-off-by: Tianyu Lan <Tianyu.Lan@microsoft.com>
Link: https://lore.kernel.org/r/20211025122116.264793-5-ltykernel@gmail.com
Signed-off-by: Wei Liu <wei.liu@kernel.org>
Diffstat (limited to 'drivers/uio')
| -rw-r--r-- | drivers/uio/uio_hv_generic.c | 18 |
1 files changed, 8 insertions, 10 deletions
diff --git a/drivers/uio/uio_hv_generic.c b/drivers/uio/uio_hv_generic.c index 652fe2547587..c08a6cfd119f 100644 --- a/drivers/uio/uio_hv_generic.c +++ b/drivers/uio/uio_hv_generic.c @@ -58,11 +58,11 @@ struct hv_uio_private_data { atomic_t refcnt; void *recv_buf; - u32 recv_gpadl; + struct vmbus_gpadl recv_gpadl; char recv_name[32]; /* "recv_4294967295" */ void *send_buf; - u32 send_gpadl; + struct vmbus_gpadl send_gpadl; char send_name[32]; }; @@ -179,15 +179,13 @@ hv_uio_new_channel(struct vmbus_channel *new_sc) static void hv_uio_cleanup(struct hv_device *dev, struct hv_uio_private_data *pdata) { - if (pdata->send_gpadl) { - vmbus_teardown_gpadl(dev->channel, pdata->send_gpadl); - pdata->send_gpadl = 0; + if (pdata->send_gpadl.gpadl_handle) { + vmbus_teardown_gpadl(dev->channel, &pdata->send_gpadl); vfree(pdata->send_buf); } - if (pdata->recv_gpadl) { - vmbus_teardown_gpadl(dev->channel, pdata->recv_gpadl); - pdata->recv_gpadl = 0; + if (pdata->recv_gpadl.gpadl_handle) { + vmbus_teardown_gpadl(dev->channel, &pdata->recv_gpadl); vfree(pdata->recv_buf); } } @@ -303,7 +301,7 @@ hv_uio_probe(struct hv_device *dev, /* put Global Physical Address Label in name */ snprintf(pdata->recv_name, sizeof(pdata->recv_name), - "recv:%u", pdata->recv_gpadl); + "recv:%u", pdata->recv_gpadl.gpadl_handle); pdata->info.mem[RECV_BUF_MAP].name = pdata->recv_name; pdata->info.mem[RECV_BUF_MAP].addr = (uintptr_t)pdata->recv_buf; @@ -324,7 +322,7 @@ hv_uio_probe(struct hv_device *dev, } snprintf(pdata->send_name, sizeof(pdata->send_name), - "send:%u", pdata->send_gpadl); + "send:%u", pdata->send_gpadl.gpadl_handle); pdata->info.mem[SEND_BUF_MAP].name = pdata->send_name; pdata->info.mem[SEND_BUF_MAP].addr = (uintptr_t)pdata->send_buf; |