From: Haiyang Zhang <haiyangz@xxxxxxxxxxxxx>
Subject: [PATCH 2/2] staging: hv: Add autoloading to hv_utils module
Added autoloading based on pci id and dmi strings.
Signed-off-by: Haiyang Zhang <haiyangz@xxxxxxxxxxxxx>
Signed-off-by: Hank Janssen <hjanssen@xxxxxxxxxxxxx>
---
drivers/staging/hv/hv_utils.c | 29 +++++++++++++++++++++++++++++
1 files changed, 29 insertions(+), 0 deletions(-)
diff --git a/drivers/staging/hv/hv_utils.c b/drivers/staging/hv/hv_utils.c
index f9826c7..b831a65 100644
--- a/drivers/staging/hv/hv_utils.c
+++ b/drivers/staging/hv/hv_utils.c
@@ -24,6 +24,8 @@
#include <linux/slab.h>
#include <linux/sysctl.h>
#include <linux/reboot.h>
+#include <linux/dmi.h>
+#include <linux/pci.h>
#include "logging.h"
#include "osd.h"
@@ -251,10 +253,37 @@ static void heartbeat_onchannelcallback(void *context)
DPRINT_EXIT(VMBUS);
}
+
+static const struct pci_device_id __initconst
+hv_utils_pci_table[] __maybe_unused = {
+ { PCI_DEVICE(0x1414, 0x5353) }, /* Hyper-V emulated VGA controller */
+ { 0 }
+};
+MODULE_DEVICE_TABLE(pci, hv_utils_pci_table);
+
+
+static const struct dmi_system_id __initconst
+hv_utils_dmi_table[] __maybe_unused = {
+ {
+ .ident = "Hyper-V",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Microsoft Corporation"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Virtual Machine"),
+ DMI_MATCH(DMI_BOARD_NAME, "Virtual Machine"),
+ },
+ },
+ { },
+};
+MODULE_DEVICE_TABLE(dmi, hv_utils_dmi_table);
+
+
static int __init init_hyperv_utils(void)
{
printk(KERN_INFO "Registering HyperV Utility Driver...\n");
+ if (!dmi_check_system(hv_utils_dmi_table))
+ return -ENODEV;
+
/* Wait until all IC channels are initialized */
while (atomic_read(&hv_utils_initcnt) < MAX_MSG_TYPES)
msleep(100);
--
1.6.3.2
Attachment:
0518-2-Add-autoloading-to-hv_utils-module.patch
Description: 0518-2-Add-autoloading-to-hv_utils-module.patch
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