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From: Tamas K Lengyel <tklengyel@sec.in.tum.de>
To: xen-devel@lists.xen.org
Cc: ian.campbell@citrix.com, tim@xen.org, julien.grall@linaro.org,
	ian.jackson@eu.citrix.com, stefano.stabellini@citrix.com,
	andres@lagarcavilla.org, jbeulich@suse.com,
	dgdegra@tycho.nsa.gov, Tamas K Lengyel <tklengyel@sec.in.tum.de>
Subject: [PATCH for-4.5 v8 10/19] xen/mem_event: Abstract architecture specific sanity checks
Date: Tue, 23 Sep 2014 15:14:21 +0200	[thread overview]
Message-ID: <1411478070-13836-11-git-send-email-tklengyel@sec.in.tum.de> (raw)
In-Reply-To: <1411478070-13836-1-git-send-email-tklengyel@sec.in.tum.de>

Move architecture specific sanity checks into its own function
which is called when enabling mem_event.

Signed-off-by: Tamas K Lengyel <tklengyel@sec.in.tum.de>
Acked-by: Tim Deegan <tim@xen.org>
---
v5: Style fix.
v4: Style fix.
v2: Move sanity check function into architecture specific p2m.h
---
 xen/common/mem_event.c    | 7 +------
 xen/include/asm-x86/p2m.h | 6 ++++++
 2 files changed, 7 insertions(+), 6 deletions(-)

diff --git a/xen/common/mem_event.c b/xen/common/mem_event.c
index c04a685..82ebfd1 100644
--- a/xen/common/mem_event.c
+++ b/xen/common/mem_event.c
@@ -615,12 +615,7 @@ int mem_event_domctl(struct domain *d, xen_domctl_mem_event_op_t *mec,
         case XEN_DOMCTL_MEM_EVENT_OP_ACCESS_ENABLE_INTROSPECTION:
         {
             rc = -ENODEV;
-            /* Only HAP is supported */
-            if ( !hap_enabled(d) )
-                break;
-
-            /* Currently only EPT is supported */
-            if ( !cpu_has_vmx )
+            if ( !p2m_mem_event_sanity_check(d) )
                 break;
 
             rc = mem_event_enable(d, mec, med, _VPF_mem_access,
diff --git a/xen/include/asm-x86/p2m.h b/xen/include/asm-x86/p2m.h
index e201f1e..484538b 100644
--- a/xen/include/asm-x86/p2m.h
+++ b/xen/include/asm-x86/p2m.h
@@ -592,6 +592,12 @@ void p2m_mem_event_emulate_check(struct domain *d,
 /* Enable MSR exit interception. */
 void p2m_enable_msr_exit_interception(struct domain *d);
 
+/* Sanity check for mem_event hardware support */
+static inline bool_t p2m_mem_event_sanity_check(struct domain *d)
+{
+    return hap_enabled(d) && cpu_has_vmx;
+}
+
 /* 
  * Internal functions, only called by other p2m code
  */
-- 
2.1.0

  parent reply	other threads:[~2014-09-23 13:14 UTC|newest]

Thread overview: 58+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-09-23 13:14 [PATCH for-4.5 v8 00/19] Mem_event and mem_access for ARM Tamas K Lengyel
2014-09-23 13:14 ` [PATCH for-4.5 v8 01/19] xen: Relocate mem_access and mem_event into common Tamas K Lengyel
2014-09-23 13:14 ` [PATCH for-4.5 v8 02/19] xen: Relocate struct npfec definition " Tamas K Lengyel
2014-09-23 13:14 ` [PATCH for-4.5 v8 03/19] xen: Relocate p2m_access_t into common and swap the order Tamas K Lengyel
2014-09-23 13:14 ` [PATCH for-4.5 v8 04/19] xen: Relocate p2m_mem_access_resume to mem_access common Tamas K Lengyel
2014-09-23 13:28   ` Jan Beulich
2014-09-23 14:04     ` Tamas K Lengyel
2014-09-23 14:08       ` Jan Beulich
2014-09-23 14:15         ` Tamas K Lengyel
2014-09-23 15:02           ` Jan Beulich
2014-09-23 13:14 ` [PATCH for-4.5 v8 05/19] xen: Relocate set_access_required domctl into common Tamas K Lengyel
2014-09-24 14:18   ` Julien Grall
2014-09-24 15:05     ` Tamas K Lengyel
2014-09-23 13:14 ` [PATCH for-4.5 v8 06/19] xen: Relocate mem_event_op domctl and access_op memop " Tamas K Lengyel
2014-09-23 13:32   ` Jan Beulich
2014-09-23 14:00     ` Razvan Cojocaru
2014-09-23 14:07       ` Jan Beulich
2014-09-23 14:13         ` Tamas K Lengyel
2014-09-23 14:23           ` Razvan Cojocaru
2014-09-23 14:28             ` Tamas K Lengyel
2014-09-23 14:19         ` Razvan Cojocaru
2014-09-23 14:08       ` Tamas K Lengyel
2014-09-23 13:14 ` [PATCH for-4.5 v8 07/19] x86/p2m: Typo fix for spelling ambiguous Tamas K Lengyel
2014-09-23 13:14 ` [PATCH for-4.5 v8 08/19] xen/mem_event: Clean out superfluous white-spaces Tamas K Lengyel
2014-09-23 13:14 ` [PATCH for-4.5 v8 09/19] xen/mem_event: Relax error condition on debug builds Tamas K Lengyel
2014-09-23 13:14 ` Tamas K Lengyel [this message]
2014-09-23 13:14 ` [PATCH for-4.5 v8 11/19] xen/mem_access: Abstract architecture specific sanity check Tamas K Lengyel
2014-09-23 13:14 ` [PATCH for-4.5 v8 12/19] xen/arm: p2m changes for mem_access support Tamas K Lengyel
2014-09-24 14:40   ` Ian Campbell
2014-09-24 16:58     ` Tamas K Lengyel
2014-09-24 17:14       ` Razvan Cojocaru
2014-09-24 14:43   ` Julien Grall
2014-09-24 16:48     ` Tamas K Lengyel
2014-09-23 13:14 ` [PATCH for-4.5 v8 13/19] xen/arm: Implement domain_get_maximum_gpfn Tamas K Lengyel
2014-09-23 13:14 ` [PATCH for-4.5 v8 14/19] xen/arm: Add p2m_set_permission and p2m_shatter_page helpers Tamas K Lengyel
2014-09-24 14:48   ` Julien Grall
2014-09-23 13:14 ` [PATCH for-4.5 v8 15/19] xen/arm: Data abort exception (R/W) mem_events Tamas K Lengyel
2014-09-24 15:02   ` Ian Campbell
2014-09-24 16:17     ` Tamas K Lengyel
2014-09-24 15:35   ` Julien Grall
2014-09-24 16:27     ` Tamas K Lengyel
2014-09-24 16:51       ` Julien Grall
2014-09-24 17:13         ` Tamas K Lengyel
2014-09-24 20:52           ` Julien Grall
2014-09-24 21:24             ` Tamas K Lengyel
2014-09-24 22:07               ` Tamas K Lengyel
2014-09-23 13:14 ` [PATCH for-4.5 v8 16/19] xen/arm: Instruction prefetch abort (X) mem_event handling Tamas K Lengyel
2014-09-24 15:05   ` Ian Campbell
2014-09-24 17:04     ` Tamas K Lengyel
2014-09-24 15:41   ` Julien Grall
2014-09-24 17:08     ` Tamas K Lengyel
2014-09-23 13:14 ` [PATCH for-4.5 v8 17/19] xen/arm: Enable the compilation of mem_access and mem_event on ARM Tamas K Lengyel
2014-09-24 15:08   ` Ian Campbell
2014-09-24 15:42   ` Julien Grall
2014-09-23 13:14 ` [PATCH for-4.5 v8 18/19] tools/libxc: Allocate magic page for mem access " Tamas K Lengyel
2014-09-23 13:14 ` [PATCH for-4.5 v8 19/19] tools/tests: Enable xen-access " Tamas K Lengyel
2014-09-24 15:12   ` Ian Campbell
2014-09-24 16:05     ` Tamas K Lengyel

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