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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 06/14] xen: vmx: Added SPP flags in EPT leaf entry.
Date: Thu, 19 Oct 2017 16:11:32 +0800	[thread overview]
Message-ID: <867c2c107590e43a0d2681a12d453cb5bd4e7c8f.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>

This change also modified the p2m_type width to 5, bits 52:56;
the p2m_access_t bits 60:57, as the bit 61 is hardware using
for EPT leaf entry SPP flags.

Signed-off-by: Zhang Yi Z <yi.z.zhang@linux.intel.com>
---
 xen/include/asm-x86/hvm/vmx/vmx.h | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/xen/include/asm-x86/hvm/vmx/vmx.h b/xen/include/asm-x86/hvm/vmx/vmx.h
index 35aada6..18383b8 100644
--- a/xen/include/asm-x86/hvm/vmx/vmx.h
+++ b/xen/include/asm-x86/hvm/vmx/vmx.h
@@ -42,8 +42,9 @@ typedef union {
         snp         :   1,  /* bit 11 - VT-d snoop control in shared
                                EPT/VT-d usage */
         mfn         :   40, /* bits 51:12 - Machine physical frame number */
-        sa_p2mt     :   6,  /* bits 57:52 - Software available 2 */
-        access      :   4,  /* bits 61:58 - p2m_access_t */
+        sa_p2mt     :   5,  /* bits 56:52 - Software available 2 */
+        access      :   4,  /* bits 60:57 - p2m_access_t */
+        spp         :   1,  /* bits 61 - SPP flags */
         tm          :   1,  /* bit 62 - VT-d transient-mapping hint in
                                shared EPT/VT-d usage */
         suppress_ve :   1;  /* bit 63 - suppress #VE */
-- 
2.7.4


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  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 ` [PATCH RFC 05/14] xen: vmx: Disable the 2M/1G superpage when SPP enabled Zhang Yi
2017-10-19 18:17   ` 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 ` Zhang Yi [this message]
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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