* [PATCH] x86/hyper-v: add "polling" bit to hv_synic_sint
@ 2019-12-22 23:34 Wei Liu
2019-12-23 14:41 ` Michael Kelley
0 siblings, 1 reply; 2+ messages in thread
From: Wei Liu @ 2019-12-22 23:34 UTC (permalink / raw)
To: linux-hyperv
Cc: sashal, kys, haiyangz, sthemmin, x86, mikelley, linux-kernel,
Wei Liu
That bit is documented in TLFS 5.0c as follows:
Setting the polling bit will have the effect of unmasking an
interrupt source, except that an actual interrupt is not generated.
Signed-off-by: Wei Liu <wei.liu@kernel.org>
---
arch/x86/include/asm/hyperv-tlfs.h | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/arch/x86/include/asm/hyperv-tlfs.h b/arch/x86/include/asm/hyperv-tlfs.h
index 5f10f7f2098d..92abc1e42bfc 100644
--- a/arch/x86/include/asm/hyperv-tlfs.h
+++ b/arch/x86/include/asm/hyperv-tlfs.h
@@ -809,7 +809,8 @@ union hv_synic_sint {
u64 reserved1:8;
u64 masked:1;
u64 auto_eoi:1;
- u64 reserved2:46;
+ u64 polling:1;
+ u64 reserved2:45;
} __packed;
};
--
2.20.1
^ permalink raw reply related [flat|nested] 2+ messages in thread
* RE: [PATCH] x86/hyper-v: add "polling" bit to hv_synic_sint
2019-12-22 23:34 [PATCH] x86/hyper-v: add "polling" bit to hv_synic_sint Wei Liu
@ 2019-12-23 14:41 ` Michael Kelley
0 siblings, 0 replies; 2+ messages in thread
From: Michael Kelley @ 2019-12-23 14:41 UTC (permalink / raw)
To: Wei Liu, linux-hyperv@vger.kernel.org
Cc: sashal@kernel.org, KY Srinivasan, Haiyang Zhang,
Stephen Hemminger, x86@kernel.org, linux-kernel@vger.kernel.org
From: Wei Liu <wei.liu@kernel.org> Sent: Sunday, December 22, 2019 3:34 PM
> To: linux-hyperv@vger.kernel.org
> Cc: sashal@kernel.org; KY Srinivasan <kys@microsoft.com>; Haiyang Zhang
> <haiyangz@microsoft.com>; Stephen Hemminger <sthemmin@microsoft.com>;
> x86@kernel.org; Michael Kelley <mikelley@microsoft.com>; linux-kernel@vger.kernel.org;
> Wei Liu <wei.liu@kernel.org>
> Subject: [PATCH] x86/hyper-v: add "polling" bit to hv_synic_sint
>
> That bit is documented in TLFS 5.0c as follows:
>
> Setting the polling bit will have the effect of unmasking an
> interrupt source, except that an actual interrupt is not generated.
>
> Signed-off-by: Wei Liu <wei.liu@kernel.org>
> ---
> arch/x86/include/asm/hyperv-tlfs.h | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/arch/x86/include/asm/hyperv-tlfs.h b/arch/x86/include/asm/hyperv-tlfs.h
> index 5f10f7f2098d..92abc1e42bfc 100644
> --- a/arch/x86/include/asm/hyperv-tlfs.h
> +++ b/arch/x86/include/asm/hyperv-tlfs.h
> @@ -809,7 +809,8 @@ union hv_synic_sint {
> u64 reserved1:8;
> u64 masked:1;
> u64 auto_eoi:1;
> - u64 reserved2:46;
> + u64 polling:1;
> + u64 reserved2:45;
> } __packed;
> };
>
> --
> 2.20.1
Reviewed-by: Michael Kelley <mikelley@microsoft.com>
^ permalink raw reply [flat|nested] 2+ messages in thread
end of thread, other threads:[~2019-12-23 14:41 UTC | newest]
Thread overview: 2+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2019-12-22 23:34 [PATCH] x86/hyper-v: add "polling" bit to hv_synic_sint Wei Liu
2019-12-23 14:41 ` Michael Kelley
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).