> From: Zhi Wang <zhi.wang.linux@xxxxxxxxx> > Sent: Thursday, January 5, 2023 1:45 AM > [...] > On Tue, 6 Dec 2022 16:33:21 -0800 > Dexuan Cui <decui@xxxxxxxxxxxxx> wrote: > > > When a TDX guest runs on Hyper-V, the hv_netvsc driver's > > netvsc_init_buf() allocates buffers using vzalloc(), and needs to share > > the buffers with the host OS by calling set_memory_decrypted(), which is > > not working for vmalloc() yet. Add the support by handling the pages one > > by one. > > It seems calling set_memory_decrypted() in netvsc_init_buf() is missing in > this patch series. I guess there should be another one extra patch to cover > that. set_memory_decrypted() is not missing here. In netvsc_init_buf(), after the line "net_device->recv_buf = vzalloc(buf_size);", we have vmbus_establish_gpadl(device->channel, net_device->recv_buf, ...), which calls __vmbus_establish_gpadl(), which calls set_memory_decrypted((unsigned long)kbuffer, ...)
