[Xen-devel] [PATCH 4/6] xc: XENMEM_claim_pages claimed but not possesed value.

[Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>]

From: Dan Magenheimer <dan.magenheimer@xxxxxxxxxx>

This is patch provides the value of claimed pages but
not yet accounted for in a domain. This is a total global
value that influences the hypervisors' MM system. This
value - when the guest has finally been created and is
running - ends up having the value zero. But during the
memory populate calls the contents of this value will
decrease.

Signed-off-by: Dan Magenheimer <dan.magenheimer@xxxxxxxxxx>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
---
 tools/libxc/xc_domain.c | 1 +
 tools/libxc/xenctrl.h   | 1 +
 2 files changed, 2 insertions(+)

diff --git a/tools/libxc/xc_domain.c b/tools/libxc/xc_domain.c
index af7ef66..6aefde9 100644
--- a/tools/libxc/xc_domain.c
+++ b/tools/libxc/xc_domain.c
@@ -234,6 +234,7 @@ int xc_domain_getinfo(xc_interface *xch,
 
         info->ssidref  = domctl.u.getdomaininfo.ssidref;
         info->nr_pages = domctl.u.getdomaininfo.tot_pages;
+        info->nr_unclaimed_pages = domctl.u.getdomaininfo.unclaimed_pages;
         info->nr_shared_pages = domctl.u.getdomaininfo.shr_pages;
         info->nr_paged_pages = domctl.u.getdomaininfo.paged_pages;
         info->max_memkb = domctl.u.getdomaininfo.max_pages << (PAGE_SHIFT-10);
diff --git a/tools/libxc/xenctrl.h b/tools/libxc/xenctrl.h
index 1683cf1..ba1fa14 100644
--- a/tools/libxc/xenctrl.h
+++ b/tools/libxc/xenctrl.h
@@ -364,6 +364,7 @@ typedef struct xc_dominfo {
                   hvm:1, debugged:1;
     unsigned int  shutdown_reason; /* only meaningful if shutdown==1 */
     unsigned long nr_pages; /* current number, not maximum */
+    unsigned long nr_unclaimed_pages;
     unsigned long nr_shared_pages;
     unsigned long nr_paged_pages;
     unsigned long shared_info_frame;
-- 
1.8.0.2


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