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Drivers: hv: vmbus: Extract the mmio information from DSDT

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On Gen2 firmware, Hyper-V does not emulate the PCI bus. However, the MMIO
information is packaged up in DSDT. Extract this information and export it
for use by the synthetic framebuffer driver. This is the only driver that
needs this currently.

In this version of the patch mmio, I have updated the hyperv header file
(linux/hyperv.h) with mmio definitions.

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
2014-01-29 18:14:39 -08:00
committed by Greg Kroah-Hartman
parent 5267cf02c7
commit 90f3453585
2 changed files with 35 additions and 13 deletions
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3
include/linux/hyperv.h
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@@ -1143,6 +1143,9 @@ int hv_vss_init(struct hv_util_service *);
void hv_vss_deinit(void);
void hv_vss_onchannelcallback(void *);
extern u64 hyperv_mmio_start;
extern u64 hyperv_mmio_size;
/*
* Negotiated version with the Host.
*/