leandrof/linux
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Drivers: hv: vmbus: Mark vmbus ring buffer visible to host in Isolation VM

Browse Source 
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>
This commit is contained in:
Tianyu Lan
2021-10-25 08:21:09 -04:00
committed by Wei Liu
parent 810a521265
commit d4dccf353d
5 changed files with 65 additions and 38 deletions
Download Patch File Download Diff File Expand all files Collapse all files

18
drivers/uio/uio_hv_generic.c
View File

@@ -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;