xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Drivers: hv: vmbus: Remove dependencies on guest page size

Browse Source 
Hyper-V assumes page size to be 4K. This might not be the case for ARM64
architecture. Hence use hyper-v page size and page allocation function
to avoid conflicts between different host and guest page size on ARM64.

Signed-off-by: Himadri Pandya <himadri18.07@gmail.com>
Reviewed-by: Michael Kelley <mikelley@microsoft.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Himadri Pandya
2019-07-30 09:49:44 +00:00
committed by Sasha Levin
parent fa36dcdf8b
commit 53edce00ce
2 changed files with 10 additions and 10 deletions
Download Patch File Download Diff File Expand all files Collapse all files

14
drivers/hv/connection.c
View File

@@ -208,7 +208,7 @@ int vmbus_connect(void)
* abstraction stuff
*/
vmbus_connection.int_page =
(void *)__get_free_pages(GFP_KERNEL|__GFP_ZERO, 0);
(void *)hv_alloc_hyperv_zeroed_page();
if (vmbus_connection.int_page == NULL) {
ret = -ENOMEM;
goto cleanup;
@@ -217,14 +217,14 @@ int vmbus_connect(void)
vmbus_connection.recv_int_page = vmbus_connection.int_page;
vmbus_connection.send_int_page =
(void *)((unsigned long)vmbus_connection.int_page +
(PAGE_SIZE >> 1));
(HV_HYP_PAGE_SIZE >> 1));
/*
* Setup the monitor notification facility. The 1st page for
* parent->child and the 2nd page for child->parent
*/
vmbus_connection.monitor_pages[0] = (void *)__get_free_pages((GFP_KERNEL|__GFP_ZERO), 0);
vmbus_connection.monitor_pages[1] = (void *)__get_free_pages((GFP_KERNEL|__GFP_ZERO), 0);
vmbus_connection.monitor_pages[0] = (void *)hv_alloc_hyperv_zeroed_page();
vmbus_connection.monitor_pages[1] = (void *)hv_alloc_hyperv_zeroed_page();
if ((vmbus_connection.monitor_pages[0] == NULL) ||
(vmbus_connection.monitor_pages[1] == NULL)) {
ret = -ENOMEM;
@@ -297,12 +297,12 @@ void vmbus_disconnect(void)
destroy_workqueue(vmbus_connection.work_queue);
if (vmbus_connection.int_page) {
free_pages((unsigned long)vmbus_connection.int_page, 0);
hv_free_hyperv_page((unsigned long)vmbus_connection.int_page);
vmbus_connection.int_page = NULL;
}
free_pages((unsigned long)vmbus_connection.monitor_pages[0], 0);
free_pages((unsigned long)vmbus_connection.monitor_pages[1], 0);
hv_free_hyperv_page((unsigned long)vmbus_connection.monitor_pages[0]);
hv_free_hyperv_page((unsigned long)vmbus_connection.monitor_pages[1]);
vmbus_connection.monitor_pages[0] = NULL;
vmbus_connection.monitor_pages[1] = NULL;
}