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Drivers: hv: vmbus: Define an API to retrieve virtual processor index

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As part of cleaning up architecture specific code, define an API
to retrieve the virtual procesor index.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
K. Y. Srinivasan 2017-01-19 11:51:57 -07:00 committed by Greg Kroah-Hartman
parent 06d1d98a83
commit 7297ff0ca9
2 changed files with 3 additions and 1 deletions
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2
arch/x86/include/asm/mshyperv.h
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@ -149,6 +149,8 @@ static inline void vmbus_signal_eom(struct hv_message *msg, u32 old_msg_type)
#define hv_get_synic_state(val) rdmsrl(HV_X64_MSR_SCONTROL, val)
#define hv_set_synic_state(val) wrmsrl(HV_X64_MSR_SCONTROL, val)
#define hv_get_vp_index(index) rdmsrl(HV_X64_MSR_VP_INDEX, index)
void hyperv_callback_vector(void);
#ifdef CONFIG_TRACING
#define trace_hyperv_callback_vector hyperv_callback_vector

2
drivers/hv/hv.c
View File

@ -306,7 +306,7 @@ int hv_synic_init(unsigned int cpu)
* of cpuid and Linux' notion of cpuid.
* This array will be indexed using Linux cpuid.
*/
rdmsrl(HV_X64_MSR_VP_INDEX, vp_index);
hv_get_vp_index(vp_index);
hv_context.vp_index[cpu] = (u32)vp_index;
/*