From: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
To: <arnd@arndb.de>
Cc: <linux@arm.linux.org.uk>, <linaro-dev@lists.linaro.org>,
<linux-arm-kernel@lists.infradead.org>, <tim@xen.org>,
<Ian.Campbell@citrix.com>, <konrad.wilk@oracle.com>,
<Stefano.Stabellini@eu.citrix.com>,
<xen-devel@lists.xensource.com>, <linux-kernel@vger.kernel.org>,
Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Subject: [PATCH v5 11/17] xen/arm: get privilege status
Date: Mon, 17 Sep 2012 18:38:57 +0100 [thread overview]
Message-ID: <1347903543-2135-11-git-send-email-stefano.stabellini@eu.citrix.com> (raw)
In-Reply-To: <alpine.DEB.2.02.1209171215490.29232@kaball.uk.xensource.com>
Use Xen features to figure out if we are privileged.
XENFEAT_dom0 was introduced by 23735 in xen-unstable.hg.
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Acked-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
---
arch/arm/xen/enlighten.c | 7 +++++++
include/xen/interface/features.h | 3 +++
2 files changed, 10 insertions(+), 0 deletions(-)
diff --git a/arch/arm/xen/enlighten.c b/arch/arm/xen/enlighten.c
index 6a0217d..c2a47a7 100644
--- a/arch/arm/xen/enlighten.c
+++ b/arch/arm/xen/enlighten.c
@@ -1,6 +1,7 @@
#include <xen/xen.h>
#include <xen/interface/xen.h>
#include <xen/interface/memory.h>
+#include <xen/features.h>
#include <xen/platform_pci.h>
#include <asm/xen/hypervisor.h>
#include <asm/xen/hypercall.h>
@@ -66,6 +67,12 @@ static int __init xen_guest_init(void)
}
xen_domain_type = XEN_HVM_DOMAIN;
+ xen_setup_features();
+ if (xen_feature(XENFEAT_dom0))
+ xen_start_info->flags |= SIF_INITDOMAIN|SIF_PRIVILEGED;
+ else
+ xen_start_info->flags &= ~(SIF_INITDOMAIN|SIF_PRIVILEGED);
+
if (!shared_info_page)
shared_info_page = (struct shared_info *)
get_zeroed_page(GFP_KERNEL);
diff --git a/include/xen/interface/features.h b/include/xen/interface/features.h
index b6ca39a..131a6cc 100644
--- a/include/xen/interface/features.h
+++ b/include/xen/interface/features.h
@@ -50,6 +50,9 @@
/* x86: pirq can be used by HVM guests */
#define XENFEAT_hvm_pirqs 10
+/* operation as Dom0 is supported */
+#define XENFEAT_dom0 11
+
#define XENFEAT_NR_SUBMAPS 1
#endif /* __XEN_PUBLIC_FEATURES_H__ */
--
1.7.2.5
next prev parent reply other threads:[~2012-09-17 17:41 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-09-17 17:37 [PATCH v5 00/17] Introduce Xen support on ARM (based on 3.6-rc5) Stefano Stabellini
2012-09-17 17:38 ` [PATCH v5 01/17] arm: initial Xen support Stefano Stabellini
2012-09-17 17:38 ` [PATCH v5 02/17] xen/arm: hypercalls Stefano Stabellini
2012-09-17 17:38 ` [PATCH v5 03/17] xen/arm: page.h definitions Stefano Stabellini
2012-09-17 17:38 ` [PATCH v5 04/17] xen/arm: sync_bitops Stefano Stabellini
2012-09-17 17:38 ` [PATCH v5 05/17] xen/arm: empty implementation of grant_table arch specific functions Stefano Stabellini
2012-09-17 17:38 ` [PATCH v5 06/17] docs: Xen ARM DT bindings Stefano Stabellini
2012-09-18 2:59 ` Rob Herring
2012-09-17 17:38 ` [PATCH v5 07/17] xen/arm: Xen detection and shared_info page mapping Stefano Stabellini
2012-09-17 17:38 ` [PATCH v5 08/17] xen/arm: Introduce xen_ulong_t for unsigned long Stefano Stabellini
2012-09-17 17:38 ` [PATCH v5 09/17] xen: do not compile manage, balloon, pci, acpi, pcpu and cpu_hotplug on ARM Stefano Stabellini
2012-09-17 17:38 ` [PATCH v5 10/17] xen/arm: introduce CONFIG_XEN " Stefano Stabellini
2012-09-17 17:38 ` Stefano Stabellini [this message]
2012-09-17 17:38 ` [PATCH v5 12/17] xen/arm: initialize grant_table " Stefano Stabellini
2012-09-17 17:38 ` [PATCH v5 13/17] xen/arm: receive Xen events " Stefano Stabellini
2012-09-17 17:39 ` [PATCH v5 14/17] xen/arm: implement alloc/free_xenballooned_pages with alloc_pages/kfree Stefano Stabellini
2012-09-17 17:39 ` [PATCH v5 15/17] xen/arm: compile blkfront and blkback Stefano Stabellini
2012-09-17 17:39 ` [PATCH v5 16/17] xen/arm: compile netback Stefano Stabellini
2012-09-17 17:39 ` [PATCH v5 17/17] MAINTAINERS: add myself as Xen ARM maintainer Stefano Stabellini
2012-09-18 12:34 ` [PATCH v5 00/17] Introduce Xen support on ARM (based on 3.6-rc5) Arnd Bergmann
2012-09-18 13:53 ` Konrad Rzeszutek Wilk
2012-09-18 13:57 ` Stefano Stabellini
2012-09-18 14:37 ` Konrad Rzeszutek Wilk
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