Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

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

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

arch/x86/include/asm/mshyperv.h

+3 −0
Original line number Diff line number Diff line
@@ -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

drivers/hv/vmbus_drv.c

+1 −1
Original line number Diff line number Diff line
@@ -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) {