From: Zhang Yi <yi.z.zhang@linux.intel.com>
To: xen-devel@lists.xenproject.org
Cc: kevin.tian@intel.com, tamas@tklengyel.com, wei.liu2@citrix.com,
jun.nakajima@intel.com, rcojocaru@bitdefender.com,
george.dunlap@eu.citrix.com, andrew.cooper3@citrix.com,
ian.jackson@eu.citrix.com,
Zhang Yi Z <yi.z.zhang@linux.intel.com>,
jbeulich@suse.com
Subject: [PATCH RFC 05/14] xen: vmx: Disable the 2M/1G superpage when SPP enabled
Date: Thu, 19 Oct 2017 16:11:04 +0800 [thread overview]
Message-ID: <f036c2e9a6d81670d22edfc3b872773fc5ea3d6c.1508397860.git.yi.z.zhang@linux.intel.com> (raw)
In-Reply-To: <cover.1508397860.git.yi.z.zhang@linux.intel.com>
From: Zhang Yi Z <yi.z.zhang@linux.intel.com>
Current we only support Sub-page Protection on the 4k
page table.
Signed-off-by: Zhang Yi Z <yi.z.zhang@linux.intel.com>
---
xen/arch/x86/hvm/vmx/vmx.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/xen/arch/x86/hvm/vmx/vmx.c b/xen/arch/x86/hvm/vmx/vmx.c
index 04ae0d6..a4c24bb 100644
--- a/xen/arch/x86/hvm/vmx/vmx.c
+++ b/xen/arch/x86/hvm/vmx/vmx.c
@@ -2497,6 +2497,12 @@ const struct hvm_function_table * __init start_vmx(void)
vmx_function_table.get_guest_bndcfgs = vmx_get_guest_bndcfgs;
}
+ if ( cpu_has_vmx_ept_spp )
+ {
+ vmx_function_table.hap_capabilities &= ~HVM_HAP_SUPERPAGE_2MB;
+ vmx_function_table.hap_capabilities &= ~HVM_HAP_SUPERPAGE_1GB;
+ }
+
setup_vmcs_dump();
lbr_tsx_fixup_check();
--
2.7.4
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next prev parent reply other threads:[~2017-10-19 8:10 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-10-19 8:04 [PATCH RFC 00/14] Intel EPT-Based Sub-page Write Protection Support Zhang Yi
2017-10-19 8:08 ` [PATCH RFC 01/14] xen: vmx: Added EPT based Subpage Write Protection Doc Zhang Yi
2017-10-19 8:08 ` [PATCH RFC 02/14] xen: vmx: Added VMX SPP feature flags and VM-Execution Controls Zhang Yi
2017-10-19 8:09 ` [PATCH RFC 03/14] xen: vmx: Introduce the SPPTP and SPP page table Zhang Yi
2017-10-19 8:10 ` [PATCH RFC 04/14] xen: vmx: Introduce SPP-Induced vm exit and it's handle Zhang Yi
2017-10-19 8:11 ` Zhang Yi [this message]
2017-10-19 18:17 ` [PATCH RFC 05/14] xen: vmx: Disable the 2M/1G superpage when SPP enabled Tamas K Lengyel
2017-10-20 8:44 ` Yi Zhang
2017-10-24 17:43 ` Tamas K Lengyel
2017-10-25 15:32 ` Yi Zhang
2017-10-25 15:12 ` Tamas K Lengyel
2017-10-19 8:11 ` [PATCH RFC 06/14] xen: vmx: Added SPP flags in EPT leaf entry Zhang Yi
2017-10-19 8:12 ` [PATCH RFC 07/14] xen: vmx: Update the EPT leaf entry indicated with the SPP enable bit Zhang Yi
2017-10-19 8:12 ` [PATCH RFC 08/14] xen: vmx: Added setup spp page structure Zhang Yi
2017-10-19 18:26 ` Tamas K Lengyel
2017-10-20 8:43 ` Yi Zhang
2017-10-19 8:13 ` [PATCH RFC 09/14] xen: vmx: Introduce a Hyper call to set subpage Zhang Yi
2017-10-19 18:34 ` Tamas K Lengyel
2017-10-20 8:41 ` Yi Zhang
2017-10-19 8:13 ` [PATCH RFC 10/14] xen: vmx: Implement the Hypercall p2m_set_subpage Zhang Yi
2017-10-19 8:14 ` [PATCH RFC 11/14] xen: vmx: Added handle of SPP write protection fault Zhang Yi
2017-10-19 8:15 ` [PATCH RFC 12/14] xen: vmx: Support for clear EPT SPP write Protect bit Zhang Yi
2017-10-19 8:15 ` [PATCH RFC 13/14] xen: tools: Introduce the set-subpage into xenctrl Zhang Yi
2017-10-19 8:37 ` Razvan Cojocaru
2017-10-20 8:40 ` Yi Zhang
2017-10-19 8:16 ` [PATCH RFC 14/14] xen: tools: Added xen-subpage tool Zhang Yi
2017-10-19 8:42 ` Razvan Cojocaru
2017-10-20 8:39 ` Yi Zhang
2017-10-19 9:07 ` [PATCH RFC 00/14] Intel EPT-Based Sub-page Write Protection Support Razvan Cojocaru
2017-10-20 8:37 ` Yi Zhang
2017-10-20 8:39 ` Razvan Cojocaru
2017-10-20 8:39 ` Razvan Cojocaru
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