All of lore.kernel.org
 help / color / mirror / Atom feed
From: "Jan Beulich" <JBeulich@suse.com>
To: xen-devel <xen-devel@lists.xenproject.org>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>,
	Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Subject: [PATCH 1/4] SVM: use VMCB accessors
Date: Wed, 31 May 2017 01:21:26 -0600	[thread overview]
Message-ID: <592E8B16020000780015DFAC@prv-mh.provo.novell.com> (raw)
In-Reply-To: <592E8925020000780015DF7A@prv-mh.provo.novell.com>

[-- Attachment #1: Type: text/plain, Size: 1352 bytes --]

This is particularly relevant for the SET form, to ensure proper clean
bits tracking (albeit in the case here it's benign as CPL and other
segment register attributes share a clean bit).

Signed-off-by: Jan Beulich <jbeulich@suse.com>

--- a/xen/arch/x86/hvm/svm/svm.c
+++ b/xen/arch/x86/hvm/svm/svm.c
@@ -653,7 +653,7 @@ static void svm_get_segment_register(str
         break;
     case x86_seg_ss:
         *reg = vmcb->ss;
-        reg->attr.fields.dpl = vmcb->_cpl;
+        reg->attr.fields.dpl = vmcb_get_cpl(vmcb);
         break;
     case x86_seg_tr:
         svm_sync_vmcb(v);
@@ -726,7 +726,7 @@ static void svm_set_segment_register(str
         break;
     case x86_seg_ss:
         vmcb->ss = *reg;
-        vmcb->_cpl = vmcb->ss.attr.fields.dpl;
+        vmcb_set_cpl(vmcb, reg->attr.fields.dpl);
         break;
     case x86_seg_tr:
         vmcb->tr = *reg;
@@ -1442,7 +1442,7 @@ static void svm_inject_event(const struc
      * If injecting an event outside of 64bit mode, zero the upper bits of the
      * %eip and nextrip after the adjustments above.
      */
-    if ( !((vmcb->_efer & EFER_LMA) && vmcb->cs.attr.fields.l) )
+    if ( !((vmcb_get_efer(vmcb) & EFER_LMA) && vmcb->cs.attr.fields.l) )
     {
         regs->rip = regs->eip;
         vmcb->nextrip = (uint32_t)vmcb->nextrip;




[-- Attachment #2: SVM-use-accessors.patch --]
[-- Type: text/plain, Size: 1373 bytes --]

SVM: use VMCB accessors

This is particularly relevant for the SET form, to ensure proper clean
bits tracking (albeit in the case here it's benign as CPL and other
segment register attributes share a clean bit).

Signed-off-by: Jan Beulich <jbeulich@suse.com>

--- a/xen/arch/x86/hvm/svm/svm.c
+++ b/xen/arch/x86/hvm/svm/svm.c
@@ -653,7 +653,7 @@ static void svm_get_segment_register(str
         break;
     case x86_seg_ss:
         *reg = vmcb->ss;
-        reg->attr.fields.dpl = vmcb->_cpl;
+        reg->attr.fields.dpl = vmcb_get_cpl(vmcb);
         break;
     case x86_seg_tr:
         svm_sync_vmcb(v);
@@ -726,7 +726,7 @@ static void svm_set_segment_register(str
         break;
     case x86_seg_ss:
         vmcb->ss = *reg;
-        vmcb->_cpl = vmcb->ss.attr.fields.dpl;
+        vmcb_set_cpl(vmcb, reg->attr.fields.dpl);
         break;
     case x86_seg_tr:
         vmcb->tr = *reg;
@@ -1442,7 +1442,7 @@ static void svm_inject_event(const struc
      * If injecting an event outside of 64bit mode, zero the upper bits of the
      * %eip and nextrip after the adjustments above.
      */
-    if ( !((vmcb->_efer & EFER_LMA) && vmcb->cs.attr.fields.l) )
+    if ( !((vmcb_get_efer(vmcb) & EFER_LMA) && vmcb->cs.attr.fields.l) )
     {
         regs->rip = regs->eip;
         vmcb->nextrip = (uint32_t)vmcb->nextrip;

[-- Attachment #3: Type: text/plain, Size: 127 bytes --]

_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xen.org
https://lists.xen.org/xen-devel

  reply	other threads:[~2017-05-31  7:21 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-05-31  7:13 [PATCH 0/4] SVM: misc cleanup Jan Beulich
2017-05-31  7:21 ` Jan Beulich [this message]
2017-05-31 11:14   ` [PATCH 1/4] SVM: use VMCB accessors Andrew Cooper
2017-05-31  7:21 ` [PATCH 2/4] SVM: infer type in VMCB_ACCESSORS() Jan Beulich
2017-05-31 11:25   ` Andrew Cooper
2017-05-31 11:56     ` Jan Beulich
2017-05-31 14:32       ` Boris Ostrovsky
2017-05-31  7:22 ` [PATCH 3/4] SVM: clean up svm_vmcb_dump() Jan Beulich
2017-05-31 11:34   ` Andrew Cooper
2017-05-31 11:58     ` Jan Beulich
2017-05-31  7:23 ` [PATCH 4/4] SVM: clean up svm_vmcb_isvalid() Jan Beulich
2017-05-31 12:14   ` Andrew Cooper
2017-05-31 14:50     ` Boris Ostrovsky
2017-05-31 15:32       ` Andrew Cooper
2017-05-31 15:44         ` Boris Ostrovsky
2017-06-01 13:06     ` Jan Beulich

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=592E8B16020000780015DFAC@prv-mh.provo.novell.com \
    --to=jbeulich@suse.com \
    --cc=boris.ostrovsky@oracle.com \
    --cc=suravee.suthikulpanit@amd.com \
    --cc=xen-devel@lists.xenproject.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.