* [PATCH for-next] tools/libxc: Drop broken xc_{get, set}_hvm_param() functions
@ 2017-05-22 11:50 Andrew Cooper
2017-05-30 10:38 ` Wei Liu
2017-05-31 10:35 ` Wei Liu
0 siblings, 2 replies; 5+ messages in thread
From: Andrew Cooper @ 2017-05-22 11:50 UTC (permalink / raw)
To: Xen-devel; +Cc: Andrew Cooper, Ian Jackson, Wei Liu
xc_{get,set}_hvm_param() are deprecated because they truncate their value
parameter in 32bit builds of libxc, and are therefore unfit for use.
As there is only a single remaining user, switch that user over to
xc_hvm_param_get() and drop these functions completely.
Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
---
CC: Ian Jackson <Ian.Jackson@eu.citrix.com>
CC: Wei Liu <wei.liu2@citrix.com>
---
tools/libxc/include/xenctrl.h | 4 ----
tools/libxc/xc_domain.c | 17 -----------------
tools/xenpaging/xenpaging.c | 7 ++++---
3 files changed, 4 insertions(+), 24 deletions(-)
diff --git a/tools/libxc/include/xenctrl.h b/tools/libxc/include/xenctrl.h
index 1629f41..4d3f2ae 100644
--- a/tools/libxc/include/xenctrl.h
+++ b/tools/libxc/include/xenctrl.h
@@ -1660,10 +1660,6 @@ void xc_clear_last_error(xc_interface *xch);
int xc_hvm_param_set(xc_interface *handle, domid_t dom, uint32_t param, uint64_t value);
int xc_hvm_param_get(xc_interface *handle, domid_t dom, uint32_t param, uint64_t *value);
-/* Deprecated: use xc_hvm_param_set/get() instead. */
-int xc_set_hvm_param(xc_interface *handle, domid_t dom, int param, unsigned long value);
-int xc_get_hvm_param(xc_interface *handle, domid_t dom, int param, unsigned long *value);
-
/* HVM guest pass-through */
int xc_assign_device(xc_interface *xch,
uint32_t domid,
diff --git a/tools/libxc/xc_domain.c b/tools/libxc/xc_domain.c
index 00909ad4..b619440 100644
--- a/tools/libxc/xc_domain.c
+++ b/tools/libxc/xc_domain.c
@@ -1455,23 +1455,6 @@ int xc_hvm_param_get(xc_interface *handle, domid_t dom, uint32_t param, uint64_t
return rc;
}
-int xc_set_hvm_param(xc_interface *handle, domid_t dom, int param, unsigned long value)
-{
- return xc_hvm_param_set(handle, dom, param, value);
-}
-
-int xc_get_hvm_param(xc_interface *handle, domid_t dom, int param, unsigned long *value)
-{
- uint64_t v;
- int ret;
-
- ret = xc_hvm_param_get(handle, dom, param, &v);
- if (ret < 0)
- return ret;
- *value = v;
- return 0;
-}
-
int xc_domain_setdebugging(xc_interface *xch,
uint32_t domid,
unsigned int enable)
diff --git a/tools/xenpaging/xenpaging.c b/tools/xenpaging/xenpaging.c
index d0571ca..431a86b 100644
--- a/tools/xenpaging/xenpaging.c
+++ b/tools/xenpaging/xenpaging.c
@@ -280,7 +280,8 @@ static struct xenpaging *xenpaging_init(int argc, char *argv[])
xentoollog_logger *dbg = NULL;
char *p;
int rc;
- unsigned long ring_pfn, mmap_pfn;
+ uint64_t ring_pfn;
+ unsigned long mmap_pfn;
/* Allocate memory */
paging = calloc(1, sizeof(struct xenpaging));
@@ -338,8 +339,8 @@ static struct xenpaging *xenpaging_init(int argc, char *argv[])
}
/* Map the ring page */
- xc_get_hvm_param(xch, paging->vm_event.domain_id,
- HVM_PARAM_PAGING_RING_PFN, &ring_pfn);
+ xc_hvm_param_get(xch, paging->vm_event.domain_id,
+ HVM_PARAM_PAGING_RING_PFN, &ring_pfn);
mmap_pfn = ring_pfn;
paging->vm_event.ring_page =
xc_map_foreign_pages(xch, paging->vm_event.domain_id,
--
2.1.4
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^ permalink raw reply related [flat|nested] 5+ messages in thread
* Re: [PATCH for-next] tools/libxc: Drop broken xc_{get, set}_hvm_param() functions
2017-05-22 11:50 [PATCH for-next] tools/libxc: Drop broken xc_{get, set}_hvm_param() functions Andrew Cooper
@ 2017-05-30 10:38 ` Wei Liu
2017-05-31 10:35 ` Wei Liu
1 sibling, 0 replies; 5+ messages in thread
From: Wei Liu @ 2017-05-30 10:38 UTC (permalink / raw)
To: Andrew Cooper; +Cc: Wei Liu, Ian Jackson, Xen-devel
On Mon, May 22, 2017 at 12:50:09PM +0100, Andrew Cooper wrote:
> xc_{get,set}_hvm_param() are deprecated because they truncate their value
> parameter in 32bit builds of libxc, and are therefore unfit for use.
>
> As there is only a single remaining user, switch that user over to
> xc_hvm_param_get() and drop these functions completely.
>
> Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
Acked-by: Wei Liu <wei.liu2@citrix.com>
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^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [PATCH for-next] tools/libxc: Drop broken xc_{get, set}_hvm_param() functions
2017-05-22 11:50 [PATCH for-next] tools/libxc: Drop broken xc_{get, set}_hvm_param() functions Andrew Cooper
2017-05-30 10:38 ` Wei Liu
@ 2017-05-31 10:35 ` Wei Liu
2017-05-31 11:02 ` Andrew Cooper
1 sibling, 1 reply; 5+ messages in thread
From: Wei Liu @ 2017-05-31 10:35 UTC (permalink / raw)
To: Andrew Cooper; +Cc: Wei Liu, Ian Jackson, Xen-devel
On Mon, May 22, 2017 at 12:50:09PM +0100, Andrew Cooper wrote:
> xc_{get,set}_hvm_param() are deprecated because they truncate their value
> parameter in 32bit builds of libxc, and are therefore unfit for use.
>
> As there is only a single remaining user, switch that user over to
> xc_hvm_param_get() and drop these functions completely.
>
> Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
This broke QEMU build because QEMU uses those.
I've reverted this patch from staging.
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^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [PATCH for-next] tools/libxc: Drop broken xc_{get, set}_hvm_param() functions
2017-05-31 10:35 ` Wei Liu
@ 2017-05-31 11:02 ` Andrew Cooper
2017-05-31 11:41 ` Wei Liu
0 siblings, 1 reply; 5+ messages in thread
From: Andrew Cooper @ 2017-05-31 11:02 UTC (permalink / raw)
To: Wei Liu; +Cc: Ian Jackson, Xen-devel
On 31/05/17 11:35, Wei Liu wrote:
> On Mon, May 22, 2017 at 12:50:09PM +0100, Andrew Cooper wrote:
>> xc_{get,set}_hvm_param() are deprecated because they truncate their value
>> parameter in 32bit builds of libxc, and are therefore unfit for use.
>>
>> As there is only a single remaining user, switch that user over to
>> xc_hvm_param_get() and drop these functions completely.
>>
>> Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
> This broke QEMU build because QEMU uses those.
Which qemu? trad or upstream? I didn't encounter build errors myself.
OTOH, my commit statement still stands. These functions are provably
unfit for purpose, and need to be gotten rid of.
~Andrew
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^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [PATCH for-next] tools/libxc: Drop broken xc_{get, set}_hvm_param() functions
2017-05-31 11:02 ` Andrew Cooper
@ 2017-05-31 11:41 ` Wei Liu
0 siblings, 0 replies; 5+ messages in thread
From: Wei Liu @ 2017-05-31 11:41 UTC (permalink / raw)
To: Andrew Cooper; +Cc: Ian Jackson, Wei Liu, Xen-devel
On Wed, May 31, 2017 at 12:02:57PM +0100, Andrew Cooper wrote:
> On 31/05/17 11:35, Wei Liu wrote:
> > On Mon, May 22, 2017 at 12:50:09PM +0100, Andrew Cooper wrote:
> >> xc_{get,set}_hvm_param() are deprecated because they truncate their value
> >> parameter in 32bit builds of libxc, and are therefore unfit for use.
> >>
> >> As there is only a single remaining user, switch that user over to
> >> xc_hvm_param_get() and drop these functions completely.
> >>
> >> Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
> > This broke QEMU build because QEMU uses those.
>
> Which qemu? trad or upstream? I didn't encounter build errors myself.
>
qemu-trad.
https://travis-ci.org/xen-project/xen/jobs/237861522
> OTOH, my commit statement still stands. These functions are provably
> unfit for purpose, and need to be gotten rid of.
>
Yes. Please submit a patch to qemu-trad to switch to newer functions
first, then I can revert the revert.
Wei.
> ~Andrew
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^ permalink raw reply [flat|nested] 5+ messages in thread
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2017-05-22 11:50 [PATCH for-next] tools/libxc: Drop broken xc_{get, set}_hvm_param() functions Andrew Cooper
2017-05-30 10:38 ` Wei Liu
2017-05-31 10:35 ` Wei Liu
2017-05-31 11:02 ` Andrew Cooper
2017-05-31 11:41 ` Wei Liu
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