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

Commit 06d1d98a authored by K. Y. Srinivasan's avatar K. Y. Srinivasan Committed by Greg Kroah-Hartman
Browse files

Drivers: hv: vmbus: Define APIs to manipulate the synthetic interrupt controller 



As part of cleaning up architecture specific code, define APIs
to manipulate the interrupt controller state.

Signed-off-by: default avatarK. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 8e307bf8

arch/x86/include/asm/mshyperv.h

+3 −0
Original line number Diff line number Diff line
@@ -146,6 +146,9 @@ static inline void vmbus_signal_eom(struct hv_message *msg, u32 old_msg_type) 
#define hv_get_siefp(val) rdmsrl(HV_X64_MSR_SIEFP, val)

#define hv_set_siefp(val) wrmsrl(HV_X64_MSR_SIEFP, val)



#define hv_get_synic_state(val) rdmsrl(HV_X64_MSR_SCONTROL, val)

#define hv_set_synic_state(val) wrmsrl(HV_X64_MSR_SCONTROL, val)



void hyperv_callback_vector(void);

#ifdef CONFIG_TRACING

#define trace_hyperv_callback_vector hyperv_callback_vector

drivers/hv/hv.c

+4 −4
Original line number Diff line number Diff line
@@ -294,10 +294,10 @@ int hv_synic_init(unsigned int cpu) 
	wrmsrl(HV_X64_MSR_SINT0 + VMBUS_MESSAGE_SINT, shared_sint.as_uint64);



	/* Enable the global synic bit */

	rdmsrl(HV_X64_MSR_SCONTROL, sctrl.as_uint64);

	hv_get_synic_state(sctrl.as_uint64);

	sctrl.enable = 1;



	wrmsrl(HV_X64_MSR_SCONTROL, sctrl.as_uint64);

	hv_set_synic_state(sctrl.as_uint64);



	hv_context.synic_initialized = true;
@@ -405,9 +405,9 @@ int hv_synic_cleanup(unsigned int cpu) 
	hv_set_siefp(siefp.as_uint64);



	/* Disable the global synic bit */

	rdmsrl(HV_X64_MSR_SCONTROL, sctrl.as_uint64);

	hv_get_synic_state(sctrl.as_uint64);

	sctrl.enable = 0;

	wrmsrl(HV_X64_MSR_SCONTROL, sctrl.as_uint64);

	hv_set_synic_state(sctrl.as_uint64);



	return 0;

}