Merge tag 'hyperv-next-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux
Merge commit. Changes below are compared with the first parent: 8fa91bfa.
Changes
27 files changed · +1386 −116
Only the first 600 diff lines are shown. Download the complete patch.
Documentation/ABI/testing/debugfs-hyperv
View filediff --git a/Documentation/ABI/testing/debugfs-hyperv b/Documentation/ABI/testing/debugfs-hyperv
new file mode 100644
index 0000000..9185e1b
--- /dev/null
+++ b/Documentation/ABI/testing/debugfs-hyperv
@@ -0,0 +1,23 @@
+What: /sys/kernel/debug/hyperv/<UUID>/fuzz_test_state
+Date: October 2019
+KernelVersion: 5.5
+Contact: Branden Bonaby <[email protected]>
+Description: Fuzz testing status of a vmbus device, whether its in an ON
+ state or a OFF state
+Users: Debugging tools
+
+What: /sys/kernel/debug/hyperv/<UUID>/delay/fuzz_test_buffer_interrupt_delay
+Date: October 2019
+KernelVersion: 5.5
+Contact: Branden Bonaby <[email protected]>
+Description: Fuzz testing buffer interrupt delay value between 0 - 1000
+ microseconds (inclusive).
+Users: Debugging tools
+
+What: /sys/kernel/debug/hyperv/<UUID>/delay/fuzz_test_message_delay
+Date: October 2019
+KernelVersion: 5.5
+Contact: Branden Bonaby <[email protected]>
+Description: Fuzz testing message delay value between 0 - 1000 microseconds
+ (inclusive).
+Users: Debugging tools
MAINTAINERS
View filediff --git a/MAINTAINERS b/MAINTAINERS
index e7762b9..249c309 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -7654,6 +7654,7 @@ F: include/uapi/linux/hyperv.h
F: include/asm-generic/mshyperv.h
F: tools/hv/
F: Documentation/ABI/stable/sysfs-bus-vmbus
+F: Documentation/ABI/testing/debugfs-hyperv
HYPERBUS SUPPORT
M: Vignesh Raghavendra <[email protected]>
arch/x86/hyperv/hv_init.c
View filediff --git a/arch/x86/hyperv/hv_init.c b/arch/x86/hyperv/hv_init.c
index 50ff030..caaf4dc 100644
--- a/arch/x86/hyperv/hv_init.c
+++ b/arch/x86/hyperv/hv_init.c
@@ -7,6 +7,7 @@
* Author : K. Y. Srinivasan <[email protected]>
*/
+#include <linux/acpi.h>
#include <linux/efi.h>
#include <linux/types.h>
#include <asm/apic.h>
@@ -45,6 +46,14 @@ void *hv_alloc_hyperv_page(void)
}
EXPORT_SYMBOL_GPL(hv_alloc_hyperv_page);
+void *hv_alloc_hyperv_zeroed_page(void)
+{
+ BUILD_BUG_ON(PAGE_SIZE != HV_HYP_PAGE_SIZE);
+
+ return (void *)__get_free_page(GFP_KERNEL | __GFP_ZERO);
+}
+EXPORT_SYMBOL_GPL(hv_alloc_hyperv_zeroed_page);
+
void hv_free_hyperv_page(unsigned long addr)
{
free_page(addr);
@@ -437,3 +446,9 @@ bool hv_is_hyperv_initialized(void)
return hypercall_msr.enable;
}
EXPORT_SYMBOL_GPL(hv_is_hyperv_initialized);
+
+bool hv_is_hibernation_supported(void)
+{
+ return acpi_sleep_state_supported(ACPI_STATE_S4);
+}
+EXPORT_SYMBOL_GPL(hv_is_hibernation_supported);
arch/x86/include/asm/mshyperv.h
View filediff --git a/arch/x86/include/asm/mshyperv.h b/arch/x86/include/asm/mshyperv.h
index f4138ae..6b79515 100644
--- a/arch/x86/include/asm/mshyperv.h
+++ b/arch/x86/include/asm/mshyperv.h
@@ -219,6 +219,7 @@ static inline struct hv_vp_assist_page *hv_get_vp_assist_page(unsigned int cpu)
void __init hyperv_init(void);
void hyperv_setup_mmu_ops(void);
void *hv_alloc_hyperv_page(void);
+void *hv_alloc_hyperv_zeroed_page(void);
void hv_free_hyperv_page(unsigned long addr);
void hyperv_reenlightenment_intr(struct pt_regs *regs);
void set_hv_tscchange_cb(void (*cb)(void));
drivers/hid/hid-hyperv.c
View filediff --git a/drivers/hid/hid-hyperv.c b/drivers/hid/hid-hyperv.c
index 79a28fc..dddfca5 100644
--- a/drivers/hid/hid-hyperv.c
+++ b/drivers/hid/hid-hyperv.c
@@ -192,6 +192,9 @@ static void mousevsc_on_receive_device_info(struct mousevsc_dev *input_device,
if (desc->bLength == 0)
goto cleanup;
+ /* The pointer is not NULL when we resume from hibernation */
+ if (input_device->hid_desc != NULL)
+ kfree(input_device->hid_desc);
input_device->hid_desc = kmemdup(desc, desc->bLength, GFP_ATOMIC);
if (!input_device->hid_desc)
@@ -203,6 +206,9 @@ static void mousevsc_on_receive_device_info(struct mousevsc_dev *input_device,
goto cleanup;
}
+ /* The pointer is not NULL when we resume from hibernation */
+ if (input_device->report_desc != NULL)
+ kfree(input_device->report_desc);
input_device->report_desc = kzalloc(input_device->report_desc_size,
GFP_ATOMIC);
@@ -342,6 +348,8 @@ static int mousevsc_connect_to_vsp(struct hv_device *device)
struct mousevsc_prt_msg *request;
struct mousevsc_prt_msg *response;
+ reinit_completion(&input_dev->wait_event);
+
request = &input_dev->protocol_req;
memset(request, 0, sizeof(struct mousevsc_prt_msg));
@@ -541,6 +549,30 @@ static int mousevsc_remove(struct hv_device *dev)
return 0;
}
+static int mousevsc_suspend(struct hv_device *dev)
+{
+ vmbus_close(dev->channel);
+
+ return 0;
+}
+
+static int mousevsc_resume(struct hv_device *dev)
+{
+ int ret;
+
+ ret = vmbus_open(dev->channel,
+ INPUTVSC_SEND_RING_BUFFER_SIZE,
+ INPUTVSC_RECV_RING_BUFFER_SIZE,
+ NULL, 0,
+ mousevsc_on_channel_callback,
+ dev);
+ if (ret)
+ return ret;
+
+ ret = mousevsc_connect_to_vsp(dev);
+ return ret;
+}
+
static const struct hv_vmbus_device_id id_table[] = {
/* Mouse guid */
{ HV_MOUSE_GUID, },
@@ -554,6 +586,8 @@ static struct hv_driver mousevsc_drv = {
.id_table = id_table,
.probe = mousevsc_probe,
.remove = mousevsc_remove,
+ .suspend = mousevsc_suspend,
+ .resume = mousevsc_resume,
.driver = {
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
},
drivers/hv/Makefile
View filediff --git a/drivers/hv/Makefile b/drivers/hv/Makefile
index a1eec71..94daf82 100644
--- a/drivers/hv/Makefile
+++ b/drivers/hv/Makefile
@@ -9,4 +9,5 @@ CFLAGS_hv_balloon.o = -I$(src)
hv_vmbus-y := vmbus_drv.o \
hv.o connection.o channel.o \
channel_mgmt.o ring_buffer.o hv_trace.o
+hv_vmbus-$(CONFIG_HYPERV_TESTING) += hv_debugfs.o
hv_utils-y := hv_util.o hv_kvp.o hv_snapshot.o hv_fcopy.o hv_utils_transport.o
drivers/hv/connection.c
View filediff --git a/drivers/hv/connection.c b/drivers/hv/connection.c
index 6e4c015..74e77de 100644
--- a/drivers/hv/connection.c
+++ b/drivers/hv/connection.c
@@ -14,6 +14,7 @@
#include <linux/wait.h>
#include <linux/delay.h>
#include <linux/mm.h>
+#include <linux/module.h>
#include <linux/slab.h>
#include <linux/vmalloc.h>
#include <linux/hyperv.h>
@@ -40,29 +41,30 @@ EXPORT_SYMBOL_GPL(vmbus_connection);
__u32 vmbus_proto_version;
EXPORT_SYMBOL_GPL(vmbus_proto_version);
-static __u32 vmbus_get_next_version(__u32 current_version)
-{
- switch (current_version) {
- case (VERSION_WIN7):
- return VERSION_WS2008;
-
- case (VERSION_WIN8):
- return VERSION_WIN7;
-
- case (VERSION_WIN8_1):
- return VERSION_WIN8;
+/*
+ * Table of VMBus versions listed from newest to oldest.
+ */
+static __u32 vmbus_versions[] = {
+ VERSION_WIN10_V5_2,
+ VERSION_WIN10_V5_1,
+ VERSION_WIN10_V5,
+ VERSION_WIN10_V4_1,
+ VERSION_WIN10,
+ VERSION_WIN8_1,
+ VERSION_WIN8,
+ VERSION_WIN7,
+ VERSION_WS2008
+};
- case (VERSION_WIN10):
- return VERSION_WIN8_1;
+/*
+ * Maximal VMBus protocol version guests can negotiate. Useful to cap the
+ * VMBus version for testing and debugging purpose.
+ */
+static uint max_version = VERSION_WIN10_V5_2;
- case (VERSION_WIN10_V5):
- return VERSION_WIN10;
-
- case (VERSION_WS2008):
- default:
- return VERSION_INVAL;
- }
-}
+module_param(max_version, uint, S_IRUGO);
+MODULE_PARM_DESC(max_version,
+ "Maximal VMBus protocol version which can be negotiated");
int vmbus_negotiate_version(struct vmbus_channel_msginfo *msginfo, u32 version)
{
@@ -80,12 +82,12 @@ int vmbus_negotiate_version(struct vmbus_channel_msginfo *msginfo, u32 version)
msg->vmbus_version_requested = version;
/*
- * VMBus protocol 5.0 (VERSION_WIN10_V5) requires that we must use
- * VMBUS_MESSAGE_CONNECTION_ID_4 for the Initiate Contact Message,
+ * VMBus protocol 5.0 (VERSION_WIN10_V5) and higher require that we must
+ * use VMBUS_MESSAGE_CONNECTION_ID_4 for the Initiate Contact Message,
* and for subsequent messages, we must use the Message Connection ID
* field in the host-returned Version Response Message. And, with
- * VERSION_WIN10_V5, we don't use msg->interrupt_page, but we tell
- * the host explicitly that we still use VMBUS_MESSAGE_SINT(2) for
+ * VERSION_WIN10_V5 and higher, we don't use msg->interrupt_page, but we
+ * tell the host explicitly that we still use VMBUS_MESSAGE_SINT(2) for
* compatibility.
*
* On old hosts, we should always use VMBUS_MESSAGE_CONNECTION_ID (1).
@@ -169,8 +171,8 @@ int vmbus_negotiate_version(struct vmbus_channel_msginfo *msginfo, u32 version)
*/
int vmbus_connect(void)
{
- int ret = 0;
struct vmbus_channel_msginfo *msginfo = NULL;
+ int i, ret = 0;
__u32 version;
/* Initialize the vmbus connection */
@@ -206,7 +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;
@@ -215,14 +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;
@@ -244,21 +246,21 @@ int vmbus_connect(void)
* version.
*/
- version = VERSION_CURRENT;
+ for (i = 0; ; i++) {
+ if (i == ARRAY_SIZE(vmbus_versions))
+ goto cleanup;
+
+ version = vmbus_versions[i];
+ if (version > max_version)
+ continue;
- do {
ret = vmbus_negotiate_version(msginfo, version);
if (ret == -ETIMEDOUT)
goto cleanup;
if (vmbus_connection.conn_state == CONNECTED)
break;
-
- version = vmbus_get_next_version(version);
- } while (version != VERSION_INVAL);
-
- if (version == VERSION_INVAL)
- goto cleanup;
+ }
vmbus_proto_version = version;
pr_info("Vmbus version:%d.%d\n",
@@ -295,12 +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;
}
@@ -361,6 +363,7 @@ void vmbus_on_event(unsigned long data)
trace_vmbus_on_event(channel);
+ hv_debug_delay_test(channel, INTERRUPT_DELAY);
do {
void (*callback_fn)(void *);
@@ -413,7 +416,7 @@ int vmbus_post_msg(void *buffer, size_t buflen, bool can_sleep)
case HV_STATUS_INVALID_CONNECTION_ID:
/*
* See vmbus_negotiate_version(): VMBus protocol 5.0
- * requires that we must use
+ * and higher require that we must use
* VMBUS_MESSAGE_CONNECTION_ID_4 for the Initiate
* Contact message, but on old hosts that only
* support VMBus protocol 4.0 or lower, here we get
drivers/hv/hv_balloon.c
View filediff --git a/drivers/hv/hv_balloon.c b/drivers/hv/hv_balloon.c
index 34bd735..7f4cf4f 100644
--- a/drivers/hv/hv_balloon.c
+++ b/drivers/hv/hv_balloon.c
@@ -23,6 +23,9 @@
#include <linux/percpu_counter.h>
#include <linux/hyperv.h>
+#include <asm/hyperv-tlfs.h>
+
+#include <asm/mshyperv.h>
#define CREATE_TRACE_POINTS
#include "hv_trace_balloon.h"
@@ -341,8 +344,6 @@ struct dm_unballoon_response {
*
* mem_range: Memory range to hot add.
*
- * On Linux we currently don't support this since we cannot hot add
- * arbitrary granularity of memory.
*/
struct dm_hot_add {
@@ -457,6 +458,7 @@ struct hot_add_wrk {
struct work_struct wrk;
};
+static bool allow_hibernation;
static bool hot_add = true;
static bool do_hot_add;
/*
@@ -477,7 +479,7 @@ module_param(pressure_report_delay, uint, (S_IRUGO | S_IWUSR));
MODULE_PARM_DESC(pressure_report_delay, "Delay in secs in reporting pressure");
static atomic_t trans_id = ATOMIC_INIT(0);
-static int dm_ring_size = (5 * PAGE_SIZE);
+static int dm_ring_size = 20 * 1024;
/*
* Driver specific state.
@@ -493,10 +495,10 @@ enum hv_dm_state {
};
-static __u8 recv_buffer[PAGE_SIZE];
-static __u8 balloon_up_send_buffer[PAGE_SIZE];
-#define PAGES_IN_2M 512
-#define HA_CHUNK (32 * 1024)
+static __u8 recv_buffer[HV_HYP_PAGE_SIZE];
+static __u8 balloon_up_send_buffer[HV_HYP_PAGE_SIZE];
+#define PAGES_IN_2M (2 * 1024 * 1024 / PAGE_SIZE)
+#define HA_CHUNK (128 * 1024 * 1024 / PAGE_SIZE)
struct hv_dynmem_device {
struct hv_device *dev;
@@ -1053,8 +1055,12 @@ static void hot_add_req(struct work_struct *dummy)
else
resp.result = 0;
- if (!do_hot_add || (resp.page_count == 0))
- pr_err("Memory hot add failed\n");
+ if (!do_hot_add || resp.page_count == 0) {
+ if (!allow_hibernation)
+ pr_err("Memory hot add failed\n");
+ else
+ pr_info("Ignore hot-add request!\n");
+ }
dm->state = DM_INITIALIZED;
resp.hdr.trans_id = atomic_inc_return(&trans_id);
@@ -1076,7 +1082,7 @@ static void process_info(struct hv_dynmem_device *dm, struct dm_info_msg *msg)
__u64 *max_page_count = (__u64 *)&info_hdr[1];
pr_info("Max. dynamic memory size: %llu MB\n",
- (*max_page_count) >> (20 - PAGE_SHIFT));
+ (*max_page_count) >> (20 - HV_HYP_PAGE_SHIFT));
}
break;
@@ -1218,7 +1224,7 @@ static unsigned int alloc_balloon_pages(struct hv_dynmem_device *dm,
for (i = 0; (i * alloc_unit) < num_pages; i++) {
if (bl_resp->hdr.size + sizeof(union dm_mem_page_range) >
- PAGE_SIZE)
+ HV_HYP_PAGE_SIZE)
return i * alloc_unit;
/*
@@ -1274,9 +1280,9 @@ static void balloon_up(struct work_struct *dummy)
/*
* We will attempt 2M allocations. However, if we fail to
- * allocate 2M chunks, we will go back to 4k allocations.
+ * allocate 2M chunks, we will go back to PAGE_SIZE allocations.
*/
- alloc_unit = 512;
+ alloc_unit = PAGES_IN_2M;
avail_pages = si_mem_available();
floor = compute_balloon_floor();
@@ -1292,7 +1298,7 @@ static void balloon_up(struct work_struct *dummy)
}
while (!done) {
- memset(balloon_up_send_buffer, 0, PAGE_SIZE);
+ memset(balloon_up_send_buffer, 0, HV_HYP_PAGE_SIZE);
bl_resp = (struct dm_balloon_response *)balloon_up_send_buffer;
bl_resp->hdr.type = DM_BALLOON_RESPONSE;
bl_resp->hdr.size = sizeof(struct dm_balloon_response);
@@ -1491,7 +1497,7 @@ static void balloon_onchannelcallback(void *context)
memset(recv_buffer, 0, sizeof(recv_buffer));
vmbus_recvpacket(dev->channel, recv_buffer,
- PAGE_SIZE, &recvlen, &requestid);
+ HV_HYP_PAGE_SIZE, &recvlen, &requestid);
if (recvlen > 0) {
dm_msg = (struct dm_message *)recv_buffer;
@@ -1509,6 +1515,11 @@ static void balloon_onchannelcallback(void *context)
break;
case DM_BALLOON_REQUEST:
+ if (allow_hibernation) {
+ pr_info("Ignore balloon-up request!\n");
+ break;
+ }
+
if (dm->state == DM_BALLOON_UP)
pr_warn("Currently ballooning\n");
bal_msg = (struct dm_balloon *)recv_buffer;
@@ -1518,6 +1529,11 @@ static void balloon_onchannelcallback(void *context)
break;
case DM_UNBALLOON_REQUEST:
+ if (allow_hibernation) {
+ pr_info("Ignore balloon-down request!\n");
+ break;
+ }
+
dm->state = DM_BALLOON_DOWN;
balloon_down(dm,
(struct dm_unballoon_request *)recv_buffer);
@@ -1623,6 +1639,11 @@ static int balloon_connect_vsp(struct hv_device *dev)
cap_msg.hdr.size = sizeof(struct dm_capabilities);
cap_msg.hdr.trans_id = atomic_inc_return(&trans_id);
+ /*
+ * When hibernation (i.e. virtual ACPI S4 state) is enabled, the host
+ * currently still requires the bits to be set, so we have to add code
+ * to fail the host's hot-add and balloon up/down requests, if any.
+ */
cap_msg.caps.cap_bits.balloon = 1;
cap_msg.caps.cap_bits.hot_add = 1;
@@ -1672,6 +1693,10 @@ static int balloon_probe(struct hv_device *dev,
{
int ret;
+ allow_hibernation = hv_is_hibernation_supported();
+ if (allow_hibernation)
+ hot_add = false;
+
#ifdef CONFIG_MEMORY_HOTPLUG
do_hot_add = hot_add;
#else
@@ -1711,6 +1736,8 @@ static int balloon_probe(struct hv_device *dev,
return 0;
probe_error:
+ dm_device.state = DM_INIT_ERROR;
+ dm_device.thread = NULL;
vmbus_close(dev->channel);
#ifdef CONFIG_MEMORY_HOTPLUG
unregister_memory_notifier(&hv_memory_nb);
@@ -1752,6 +1779,59 @@ static int balloon_remove(struct hv_device *dev)
return 0;
}
+static int balloon_suspend(struct hv_device *hv_dev)
+{
+ struct hv_dynmem_device *dm = hv_get_drvdata(hv_dev);
+
+ tasklet_disable(&hv_dev->channel->callback_event);
+
+ cancel_work_sync(&dm->balloon_wrk.wrk);
+ cancel_work_sync(&dm->ha_wrk.wrk);
+
+ if (dm->thread) {
+ kthread_stop(dm->thread);
+ dm->thread = NULL;
+ vmbus_close(hv_dev->channel);
+ }
+
+ tasklet_enable(&hv_dev->channel->callback_event);
+
+ return 0;
+
+}
+
+static int balloon_resume(struct hv_device *dev)
+{
+ int ret;
+
+ dm_device.state = DM_INITIALIZING;
+
+ ret = balloon_connect_vsp(dev);
+
+ if (ret != 0)
+ goto out;
+
+ dm_device.thread =
+ kthread_run(dm_thread_func, &dm_device, "hv_balloon");
+ if (IS_ERR(dm_device.thread)) {
+ ret = PTR_ERR(dm_device.thread);
+ dm_device.thread = NULL;
+ goto close_channel;
+ }
+
+ dm_device.state = DM_INITIALIZED;
+ return 0;
+close_channel:
+ vmbus_close(dev->channel);
+out:
+ dm_device.state = DM_INIT_ERROR;
+#ifdef CONFIG_MEMORY_HOTPLUG
+ unregister_memory_notifier(&hv_memory_nb);
+ restore_online_page_callback(&hv_online_page);
+#endif
+ return ret;
+}
+
static const struct hv_vmbus_device_id id_table[] = {
/* Dynamic Memory Class ID */
/* 525074DC-8985-46e2-8057-A307DC18A502 */
@@ -1766,6 +1846,8 @@ static struct hv_driver balloon_drv = {
.id_table = id_table,
.probe = balloon_probe,
.remove = balloon_remove,
+ .suspend = balloon_suspend,
+ .resume = balloon_resume,
.driver = {
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
},
drivers/hv/hv_debugfs.c
View filediff --git a/drivers/hv/hv_debugfs.c b/drivers/hv/hv_debugfs.c
new file mode 100644
index 0000000..8a28785
This diff is incomplete. Download the complete patch.
drivers/hv/hv_fcopy.c
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drivers/hv/hv_kvp.c
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drivers/hv/hv_snapshot.c
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drivers/hv/hv_util.c
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drivers/hv/hyperv_vmbus.h
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drivers/hv/ring_buffer.c
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drivers/hv/vmbus_drv.c
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drivers/iommu/Kconfig
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drivers/net/hyperv/hyperv_net.h
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drivers/net/hyperv/netvsc_drv.c
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drivers/scsi/storvsc_drv.c
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drivers/video/fbdev/Kconfig
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drivers/video/fbdev/hyperv_fb.c
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include/asm-generic/mshyperv.h
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include/linux/hyperv.h
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lib/Kconfig.debug
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net/vmw_vsock/hyperv_transport.c
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tools/hv/vmbus_testing
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