* [PATCH] gdbsx: prefer privcmd character device
@ 2017-10-31 15:20 Doug Goldstein
2017-10-31 15:25 ` Wei Liu
0 siblings, 1 reply; 5+ messages in thread
From: Doug Goldstein @ 2017-10-31 15:20 UTC (permalink / raw)
To: xen-devel
Cc: Elena Ufimtseva, Ian Jackson, Doug Goldstein, Wei Liu,
Stefano Stabellini
Prefer using the character device over the proc file if the character
device exists.
CC: Elena Ufimtseva <elena.ufimtseva@oracle.com>
CC: Ian Jackson <ian.jackson@eu.citrix.com>
CC: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
CC: Wei Liu <wei.liu2@citrix.com>
Signed-off-by: Doug Goldstein <cardoe@cardoe.com>
---
So this was originally submitted with 9c89dc95201 and 7d418eab3b6 and
was rejected since the goal was to convert gdbsx to use libxc but that
hasn't happened. /dev/xen/privcmd should be preferred and this change
makes that happen. It would be nice if we landed this with the plan
to convert gdbsx happening when it happens.
---
tools/debugger/gdbsx/xg/xg_main.c | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
diff --git a/tools/debugger/gdbsx/xg/xg_main.c b/tools/debugger/gdbsx/xg/xg_main.c
index 7ebf91435b..cc640d1d82 100644
--- a/tools/debugger/gdbsx/xg/xg_main.c
+++ b/tools/debugger/gdbsx/xg/xg_main.c
@@ -126,9 +126,11 @@ xg_init()
int flags, saved_errno;
XGTRC("E\n");
- if ((_dom0_fd=open("/proc/xen/privcmd", O_RDWR)) == -1) {
- perror("Failed to open /proc/xen/privcmd\n");
- return -1;
+ if ((_dom0_fd=open("/dev/xen/privcmd", O_RDWR)) == -1) {
+ if ((_dom0_fd=open("/proc/xen/privcmd", O_RDWR)) == -1) {
+ perror("Failed to open /dev/xen/privcmd or /proc/xen/privcmd\n");
+ return -1;
+ }
}
/* Although we return the file handle as the 'xc handle' the API
* does not specify / guarentee that this integer is in fact
--
2.13.6
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^ permalink raw reply related [flat|nested] 5+ messages in thread
* Re: [PATCH] gdbsx: prefer privcmd character device
2017-10-31 15:20 [PATCH] gdbsx: prefer privcmd character device Doug Goldstein
@ 2017-10-31 15:25 ` Wei Liu
2017-10-31 20:58 ` Elena Ufimtseva
0 siblings, 1 reply; 5+ messages in thread
From: Wei Liu @ 2017-10-31 15:25 UTC (permalink / raw)
To: Doug Goldstein
Cc: Elena Ufimtseva, xen-devel, Ian Jackson, Wei Liu, Stefano Stabellini
On Tue, Oct 31, 2017 at 10:20:11AM -0500, Doug Goldstein wrote:
> Prefer using the character device over the proc file if the character
> device exists.
>
> CC: Elena Ufimtseva <elena.ufimtseva@oracle.com>
> CC: Ian Jackson <ian.jackson@eu.citrix.com>
> CC: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
> CC: Wei Liu <wei.liu2@citrix.com>
> Signed-off-by: Doug Goldstein <cardoe@cardoe.com>
> ---
> So this was originally submitted with 9c89dc95201 and 7d418eab3b6 and
> was rejected since the goal was to convert gdbsx to use libxc but that
> hasn't happened. /dev/xen/privcmd should be preferred and this change
> makes that happen. It would be nice if we landed this with the plan
> to convert gdbsx happening when it happens.
Oh well... I think this is fine.
Elena has the final verdict.
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^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [PATCH] gdbsx: prefer privcmd character device
2017-10-31 15:25 ` Wei Liu
@ 2017-10-31 20:58 ` Elena Ufimtseva
2017-11-01 10:20 ` [PATCH for-4.10] " Wei Liu
0 siblings, 1 reply; 5+ messages in thread
From: Elena Ufimtseva @ 2017-10-31 20:58 UTC (permalink / raw)
To: Wei Liu; +Cc: xen-devel, Doug Goldstein, Ian Jackson, Stefano Stabellini
On Tue, Oct 31, 2017 at 03:25:39PM +0000, Wei Liu wrote:
> On Tue, Oct 31, 2017 at 10:20:11AM -0500, Doug Goldstein wrote:
> > Prefer using the character device over the proc file if the character
> > device exists.
> >
> > CC: Elena Ufimtseva <elena.ufimtseva@oracle.com>
> > CC: Ian Jackson <ian.jackson@eu.citrix.com>
> > CC: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
> > CC: Wei Liu <wei.liu2@citrix.com>
> > Signed-off-by: Doug Goldstein <cardoe@cardoe.com>
> > ---
> > So this was originally submitted with 9c89dc95201 and 7d418eab3b6 and
> > was rejected since the goal was to convert gdbsx to use libxc but that
> > hasn't happened. /dev/xen/privcmd should be preferred and this change
> > makes that happen. It would be nice if we landed this with the plan
> > to convert gdbsx happening when it happens.
>
> Oh well... I think this is fine.
>
> Elena has the final verdict.
I think this is fine.
I will look into the conversion and relevant discussions if I find them and
see what can be done.
Thanks!
Meanwhile,
Reviewed-by: Elena Ufimtseva <elena.ufimtseva@oracle.com>
Elena
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^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [PATCH for-4.10] gdbsx: prefer privcmd character device
2017-10-31 20:58 ` Elena Ufimtseva
@ 2017-11-01 10:20 ` Wei Liu
2017-11-02 15:16 ` Julien Grall
0 siblings, 1 reply; 5+ messages in thread
From: Wei Liu @ 2017-11-01 10:20 UTC (permalink / raw)
To: Elena Ufimtseva
Cc: Wei Liu, Stefano Stabellini, Ian Jackson, Julien Grall,
Doug Goldstein, xen-devel
Cc Julien and change tag. I think this is safe to be applied to 4.10.
On Tue, Oct 31, 2017 at 01:58:07PM -0700, Elena Ufimtseva wrote:
> On Tue, Oct 31, 2017 at 03:25:39PM +0000, Wei Liu wrote:
> > On Tue, Oct 31, 2017 at 10:20:11AM -0500, Doug Goldstein wrote:
> > > Prefer using the character device over the proc file if the character
> > > device exists.
> > >
> > > CC: Elena Ufimtseva <elena.ufimtseva@oracle.com>
> > > CC: Ian Jackson <ian.jackson@eu.citrix.com>
> > > CC: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
> > > CC: Wei Liu <wei.liu2@citrix.com>
> > > Signed-off-by: Doug Goldstein <cardoe@cardoe.com>
> > > ---
> > > So this was originally submitted with 9c89dc95201 and 7d418eab3b6 and
> > > was rejected since the goal was to convert gdbsx to use libxc but that
> > > hasn't happened. /dev/xen/privcmd should be preferred and this change
> > > makes that happen. It would be nice if we landed this with the plan
> > > to convert gdbsx happening when it happens.
> >
> > Oh well... I think this is fine.
> >
> > Elena has the final verdict.
>
> I think this is fine.
> I will look into the conversion and relevant discussions if I find them and
> see what can be done.
>
> Thanks!
>
> Meanwhile,
> Reviewed-by: Elena Ufimtseva <elena.ufimtseva@oracle.com>
>
> Elena
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^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [PATCH for-4.10] gdbsx: prefer privcmd character device
2017-11-01 10:20 ` [PATCH for-4.10] " Wei Liu
@ 2017-11-02 15:16 ` Julien Grall
0 siblings, 0 replies; 5+ messages in thread
From: Julien Grall @ 2017-11-02 15:16 UTC (permalink / raw)
To: Wei Liu, Elena Ufimtseva
Cc: xen-devel, Doug Goldstein, Ian Jackson, Stefano Stabellini
Hi Wei,
On 01/11/17 10:20, Wei Liu wrote:
> Cc Julien and change tag. I think this is safe to be applied to 4.10.
I agree.
Release-acked-by: Julien Grall <julien.grall@linaro.org>
Cheers,
>
> On Tue, Oct 31, 2017 at 01:58:07PM -0700, Elena Ufimtseva wrote:
>> On Tue, Oct 31, 2017 at 03:25:39PM +0000, Wei Liu wrote:
>>> On Tue, Oct 31, 2017 at 10:20:11AM -0500, Doug Goldstein wrote:
>>>> Prefer using the character device over the proc file if the character
>>>> device exists.
>>>>
>>>> CC: Elena Ufimtseva <elena.ufimtseva@oracle.com>
>>>> CC: Ian Jackson <ian.jackson@eu.citrix.com>
>>>> CC: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
>>>> CC: Wei Liu <wei.liu2@citrix.com>
>>>> Signed-off-by: Doug Goldstein <cardoe@cardoe.com>
>>>> ---
>>>> So this was originally submitted with 9c89dc95201 and 7d418eab3b6 and
>>>> was rejected since the goal was to convert gdbsx to use libxc but that
>>>> hasn't happened. /dev/xen/privcmd should be preferred and this change
>>>> makes that happen. It would be nice if we landed this with the plan
>>>> to convert gdbsx happening when it happens.
>>>
>>> Oh well... I think this is fine.
>>>
>>> Elena has the final verdict.
>>
>> I think this is fine.
>> I will look into the conversion and relevant discussions if I find them and
>> see what can be done.
>>
>> Thanks!
>>
>> Meanwhile,
>> Reviewed-by: Elena Ufimtseva <elena.ufimtseva@oracle.com>
>>
>> Elena
--
Julien Grall
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^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2017-11-02 15:16 UTC | newest]
Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2017-10-31 15:20 [PATCH] gdbsx: prefer privcmd character device Doug Goldstein
2017-10-31 15:25 ` Wei Liu
2017-10-31 20:58 ` Elena Ufimtseva
2017-11-01 10:20 ` [PATCH for-4.10] " Wei Liu
2017-11-02 15:16 ` Julien Grall
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