From: Jake Oshins <jakeo@xxxxxxxxxxxxx> This patch exposes the function that hv_vmbus.ko uses to make hypercalls. This is necessary for retargeting an interrupt when it is given a new affinity. Signed-off-by: Jake Oshins <jakeo@xxxxxxxxxxxxx> --- drivers/hv/hv.c | 3 ++- include/linux/hyperv.h | 1 + 2 files changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/hv/hv.c b/drivers/hv/hv.c index 6341be8..6d01649 100644 --- a/drivers/hv/hv.c +++ b/drivers/hv/hv.c @@ -91,7 +91,7 @@ static int query_hypervisor_info(void) /* * do_hypercall- Invoke the specified hypercall */ -static u64 do_hypercall(u64 control, void *input, void *output) +u64 do_hypercall(u64 control, void *input, void *output) { u64 input_address = (input) ? virt_to_phys(input) : 0; u64 output_address = (output) ? virt_to_phys(output) : 0; @@ -132,6 +132,7 @@ static u64 do_hypercall(u64 control, void *input, void *output) return hv_status_lo | ((u64)hv_status_hi << 32); #endif /* !x86_64 */ } +EXPORT_SYMBOL_GPL(do_hypercall); #ifdef CONFIG_X86_64 static cycle_t read_hv_clock_tsc(struct clocksource *arg) diff --git a/include/linux/hyperv.h b/include/linux/hyperv.h index 02393b6..033fe59 100644 --- a/include/linux/hyperv.h +++ b/include/linux/hyperv.h @@ -983,6 +983,7 @@ int vmbus_allocate_mmio(struct resource **new, struct hv_device *device_obj, bool fb_overlap_ok); int vmbus_cpu_number_to_vp_number(int cpu_number); +u64 do_hypercall(u64 control, void *input, void *output); /** * VMBUS_DEVICE - macro used to describe a specific hyperv vmbus device -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html