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Drivers: hv: Capture the host build information

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Capture the host build information so it can be presented along with the
negotiated vmbus version information.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
K. Y. Srinivasan 2012-12-01 06:46:58 -08:00 committed by Greg Kroah-Hartman
parent c2b8e5202c
commit 5fbebb2d20
2 changed files with 16 additions and 0 deletions
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9
drivers/hv/hv.c
View File

@ -40,6 +40,11 @@ struct hv_context hv_context = {
/* /*
* query_hypervisor_info - Get version info of the windows hypervisor * query_hypervisor_info - Get version info of the windows hypervisor
*/ */
unsigned int host_info_eax;
unsigned int host_info_ebx;
unsigned int host_info_ecx;
unsigned int host_info_edx;
static int query_hypervisor_info(void) static int query_hypervisor_info(void)
{ {
unsigned int eax; unsigned int eax;
@ -76,6 +81,10 @@ static int query_hypervisor_info(void)
ecx, ecx,
edx >> 24, edx >> 24,
edx & 0xFFFFFF); edx & 0xFFFFFF);
host_info_eax = eax;
host_info_ebx = ebx;
host_info_ecx = ecx;
host_info_edx = edx;
} }
return max_leaf; return max_leaf;
} }

7
drivers/hv/hyperv_vmbus.h
View File

@ -531,6 +531,13 @@ extern void hv_synic_init(void *irqarg);
extern void hv_synic_cleanup(void *arg); extern void hv_synic_cleanup(void *arg);
/*
* Host version information.
*/
extern unsigned int host_info_eax;
extern unsigned int host_info_ebx;
extern unsigned int host_info_ecx;
extern unsigned int host_info_edx;
/* Interface */ /* Interface */