Commit 9d9c9656 authored by Sunil Muthuswamy's avatar Sunil Muthuswamy Committed by Greg Kroah-Hartman

Drivers: hv: vmbus: Get rid of MSR access from vmbus_drv.c

Get rid of ISA specific code from vmus_drv.c which is common code.

Fixes: 81b18bce ("Drivers: HV: Send one page worth of kmsg dump over Hyper-V during panic")
Signed-off-by: default avatarSunil Muthuswamy <sunilmut@microsoft.com>
Signed-off-by: default avatarK. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 8afc06dd
......@@ -97,6 +97,9 @@ static inline void vmbus_signal_eom(struct hv_message *msg, u32 old_msg_type)
#define hv_set_synint_state(int_num, val) \
wrmsrl(HV_X64_MSR_SINT0 + int_num, val)
#define hv_get_crash_ctl(val) \
rdmsrl(HV_X64_MSR_CRASH_CTL, val)
void hyperv_callback_vector(void);
void hyperv_reenlightenment_vector(void);
#ifdef CONFIG_TRACING
......
......@@ -1146,7 +1146,7 @@ static int vmbus_bus_init(void)
* Register for panic kmsg callback only if the right
* capability is supported by the hypervisor.
*/
rdmsrl(HV_X64_MSR_CRASH_CTL, hyperv_crash_ctl);
hv_get_crash_ctl(hyperv_crash_ctl);
if (hyperv_crash_ctl & HV_CRASH_CTL_CRASH_NOTIFY_MSG) {
hv_panic_page = (void *)get_zeroed_page(GFP_KERNEL);
if (hv_panic_page) {
......
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