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authorAndrea Parri (Microsoft) <parri.andrea@gmail.com>2022-04-28 17:51:06 +0300
committerWei Liu <wei.liu@kernel.org>2022-04-28 18:01:14 +0300
commitda795eb239d9e9496812e22cb582d38a71e0789a (patch)
tree57998099c1dab88b0c4dc3283c58b7240b1a1bd6 /drivers/hv
parentdbde6d0c7a5a462a1767a07c28eadd2c3dd08fb2 (diff)
downloadlinux-da795eb239d9e9496812e22cb582d38a71e0789a.tar.xz
Drivers: hv: vmbus: Accept hv_sock offers in isolated guests
So that isolated guests can communicate with the host via hv_sock channels. Signed-off-by: Andrea Parri (Microsoft) <parri.andrea@gmail.com> Reviewed-by: Michael Kelley <mikelley@microsoft.com> Link: https://lore.kernel.org/r/20220428145107.7878-5-parri.andrea@gmail.com Signed-off-by: Wei Liu <wei.liu@kernel.org>
Diffstat (limited to 'drivers/hv')
-rw-r--r--drivers/hv/channel_mgmt.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/hv/channel_mgmt.c b/drivers/hv/channel_mgmt.c
index 50fea31f019f..0db1b775e013 100644
--- a/drivers/hv/channel_mgmt.c
+++ b/drivers/hv/channel_mgmt.c
@@ -976,13 +976,17 @@ find_primary_channel_by_offer(const struct vmbus_channel_offer_channel *offer)
return channel;
}
-static bool vmbus_is_valid_device(const guid_t *guid)
+static bool vmbus_is_valid_offer(const struct vmbus_channel_offer_channel *offer)
{
+ const guid_t *guid = &offer->offer.if_type;
u16 i;
if (!hv_is_isolation_supported())
return true;
+ if (is_hvsock_offer(offer))
+ return true;
+
for (i = 0; i < ARRAY_SIZE(vmbus_devs); i++) {
if (guid_equal(guid, &vmbus_devs[i].guid))
return vmbus_devs[i].allowed_in_isolated;
@@ -1004,7 +1008,7 @@ static void vmbus_onoffer(struct vmbus_channel_message_header *hdr)
trace_vmbus_onoffer(offer);
- if (!vmbus_is_valid_device(&offer->offer.if_type)) {
+ if (!vmbus_is_valid_offer(offer)) {
pr_err_ratelimited("Invalid offer %d from the host supporting isolation\n",
offer->child_relid);
atomic_dec(&vmbus_connection.offer_in_progress);