From: <pdurrant@amzn.com>
To: <xen-devel@lists.xenproject.org>
Cc: "Andrew Cooper" <andrew.cooper3@citrix.com>,
"Paul Durrant" <pdurrant@amazon.com>, "Wei Liu" <wl@xen.org>,
"Jan Beulich" <jbeulich@suse.com>,
"Roger Pau Monné" <roger.pau@citrix.com>
Subject: [Xen-devel] [PATCH v3 4/6] x86 / ioreq: use a MEMF_no_refcount allocation for server pages...
Date: Thu, 5 Mar 2020 12:45:02 +0000 [thread overview]
Message-ID: <20200305124504.3564-5-pdurrant@amzn.com> (raw)
In-Reply-To: <20200305124504.3564-1-pdurrant@amzn.com>
From: Paul Durrant <pdurrant@amazon.com>
... now that it is safe to assign them.
This avoids relying on libxl (or whatever toolstack is in use) setting
max_pages up with sufficient 'slop' to allow all necessary ioreq server
pages to be allocated.
Signed-off-by: Paul Durrant <pdurrant@amazon.com>
---
Cc: Paul Durrant <pdurrant@amazon.com>
Cc: Jan Beulich <jbeulich@suse.com>
Cc: Andrew Cooper <andrew.cooper3@citrix.com>
Cc: Wei Liu <wl@xen.org>
Cc: "Roger Pau Monné" <roger.pau@citrix.com>
v2:
- New in v2
---
xen/arch/x86/hvm/ioreq.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/xen/arch/x86/hvm/ioreq.c b/xen/arch/x86/hvm/ioreq.c
index f8a5c81546..648ef9137f 100644
--- a/xen/arch/x86/hvm/ioreq.c
+++ b/xen/arch/x86/hvm/ioreq.c
@@ -375,7 +375,7 @@ static int hvm_alloc_ioreq_mfn(struct hvm_ioreq_server *s, bool buf)
return 0;
}
- page = alloc_domheap_page(s->target, 0);
+ page = alloc_domheap_page(s->target, MEMF_no_refcount);
if ( !page )
return -ENOMEM;
--
2.20.1
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next prev parent reply other threads:[~2020-03-05 12:46 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-05 12:44 [Xen-devel] [PATCH v3 0/6] remove one more shared xenheap page: shared_info pdurrant
2020-03-05 12:44 ` [Xen-devel] [PATCH v3 1/6] domain: introduce alloc/free_shared_info() helpers pdurrant
2020-03-05 13:23 ` Xia, Hongyan
2020-03-05 13:25 ` Xia, Hongyan
2020-03-06 11:41 ` Jan Beulich
2020-03-05 12:45 ` [Xen-devel] [PATCH v3 2/6] x86 / p2m: remove page_list check in p2m_alloc_table pdurrant
2020-03-06 11:45 ` Jan Beulich
2020-03-06 12:07 ` Durrant, Paul
2020-03-06 12:46 ` Jan Beulich
2020-03-06 12:50 ` Durrant, Paul
2020-03-06 13:06 ` Jan Beulich
2020-03-06 13:11 ` [Xen-devel] [EXTERNAL][PATCH " Paul Durrant
2020-03-06 13:19 ` Jan Beulich
2020-03-06 13:25 ` Paul Durrant
2020-03-05 12:45 ` [Xen-devel] [PATCH v3 3/6] x86 / pv: do not treat PGC_extra pages as RAM when constructing dom0 pdurrant
2020-03-06 11:56 ` Jan Beulich
2020-03-06 12:03 ` Durrant, Paul
2020-03-06 13:39 ` Jan Beulich
2020-03-06 13:45 ` Paul Durrant
2020-03-06 13:47 ` Jan Beulich
2020-03-05 12:45 ` pdurrant [this message]
2020-03-06 12:03 ` [Xen-devel] [PATCH v3 4/6] x86 / ioreq: use a MEMF_no_refcount allocation for server pages Jan Beulich
2020-03-05 12:45 ` [Xen-devel] [PATCH v3 5/6] mm: add 'is_special_page' macro pdurrant
2020-03-05 15:09 ` Tamas K Lengyel
2020-03-05 15:38 ` Durrant, Paul
2020-03-05 15:58 ` Tamas K Lengyel
2020-03-06 7:02 ` Alan Robinson
2020-03-06 9:22 ` Durrant, Paul
2020-03-06 12:20 ` Jan Beulich
2020-03-06 12:35 ` Paul Durrant
2020-03-06 13:44 ` Jan Beulich
2020-03-06 13:48 ` Paul Durrant
2020-03-06 13:52 ` Jan Beulich
2020-03-06 13:57 ` Paul Durrant
2020-03-06 14:26 ` Julien Grall
2020-03-06 14:50 ` Jan Beulich
2020-03-05 12:45 ` [Xen-devel] [PATCH v3 6/6] domain: use PGC_extra domheap page for shared_info pdurrant
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