From: Feng Wu <feng.wu@intel.com>
To: xen-devel@lists.xen.org
Cc: kevin.tian@intel.com, Feng Wu <feng.wu@intel.com>,
JBeulich@suse.com, andrew.cooper3@citrix.com,
eddie.dong@intel.com, jun.nakajima@intel.com,
ian.campbell@citrix.com
Subject: [PATCH v5 10/10] x86/tools: Expose SMAP to HVM guests
Date: Tue, 6 May 2014 18:11:11 +0800 [thread overview]
Message-ID: <1399371071-5671-1-git-send-email-feng.wu@intel.com> (raw)
This patch exposes SMAP festure to HVM guests
Signed-off-by: Feng Wu <feng.wu@intel.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
---
tools/libxc/xc_cpufeature.h | 1 +
tools/libxc/xc_cpuid_x86.c | 1 +
2 files changed, 2 insertions(+)
diff --git a/tools/libxc/xc_cpufeature.h b/tools/libxc/xc_cpufeature.h
index 6fce03b..66cc82e 100644
--- a/tools/libxc/xc_cpufeature.h
+++ b/tools/libxc/xc_cpufeature.h
@@ -140,6 +140,7 @@
#define X86_FEATURE_RTM 11 /* Restricted Transactional Memory */
#define X86_FEATURE_RDSEED 18 /* RDSEED instruction */
#define X86_FEATURE_ADX 19 /* ADCX, ADOX instructions */
+#define X86_FEATURE_SMAP 20 /* Supervisor Mode Access Protection */
#endif /* __LIBXC_CPUFEATURE_H */
diff --git a/tools/libxc/xc_cpuid_x86.c b/tools/libxc/xc_cpuid_x86.c
index 71917e3..79490da 100644
--- a/tools/libxc/xc_cpuid_x86.c
+++ b/tools/libxc/xc_cpuid_x86.c
@@ -375,6 +375,7 @@ static void xc_cpuid_hvm_policy(
bitmaskof(X86_FEATURE_RTM) |
bitmaskof(X86_FEATURE_RDSEED) |
bitmaskof(X86_FEATURE_ADX) |
+ bitmaskof(X86_FEATURE_SMAP) |
bitmaskof(X86_FEATURE_FSGSBASE));
} else
regs[1] = 0;
--
1.8.3.1
reply other threads:[~2014-05-06 10:11 UTC|newest]
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