linux-kernel - [PATCH 5/7] x86/xen: The entrance for PV extension of HVM

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <1267695416-14988-6-git-send-email-sheng@linux.intel.com>
Date:	Thu,  4 Mar 2010 17:36:54 +0800
From:	Sheng Yang <sheng@...ux.intel.com>
To:	Jeremy Fitzhardinge <jeremy.fitzhardinge@...rix.com>
Cc:	Keir Fraser <keir.fraser@...citrix.com>,
	Ingo Molnar <mingo@...e.hu>,
	Ian Pratt <Ian.Pratt@...citrix.com>,
	Ian Campbell <Ian.Campbell@...rix.com>,
	linux-kernel@...r.kernel.org,
	xen-devel <xen-devel@...ts.xensource.com>,
	Sheng Yang <sheng@...ux.intel.com>
Subject: [PATCH 5/7] x86/xen: The entrance for PV extension of HVM

xen_guest_init() would setup the environment.

Signed-off-by: Sheng Yang <sheng@...ux.intel.com>
---
 arch/x86/include/asm/xen/hypervisor.h |    6 ++++++
 arch/x86/kernel/setup.c               |    4 ++++
 2 files changed, 10 insertions(+), 0 deletions(-)

diff --git a/arch/x86/include/asm/xen/hypervisor.h b/arch/x86/include/asm/xen/hypervisor.h
index 396ff4c..13e089a 100644
--- a/arch/x86/include/asm/xen/hypervisor.h
+++ b/arch/x86/include/asm/xen/hypervisor.h
@@ -37,4 +37,10 @@
 extern struct shared_info *HYPERVISOR_shared_info;
 extern struct start_info *xen_start_info;
 
+#ifdef CONFIG_XEN_HVM_PV
+void __init xen_guest_init(void);
+#else
+static inline void xen_guest_init(void) {};
+#endif
+
 #endif /* _ASM_X86_XEN_HYPERVISOR_H */
diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index 5d9e40c..1cc4786 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -113,6 +113,8 @@
 #endif
 #include <asm/mce.h>
 
+#include <asm/xen/hypervisor.h>
+
 /*
  * end_pfn only includes RAM, while max_pfn_mapped includes all e820 entries.
  * The direct mapping extends to max_pfn_mapped, so that we can directly access
@@ -740,6 +742,8 @@ void __init setup_arch(char **cmdline_p)
 
 	x86_init.oem.arch_setup();
 
+	xen_guest_init();
+
 	setup_memory_map();
 	parse_setup_data();
 	/* update the e820_saved too */
-- 
1.5.4.5

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/