public inbox for kvm@vger.kernel.org
 help / color / mirror / Atom feed
From: Bill Wendling <morbo@google.com>
To: kvm@vger.kernel.org
Cc: sean.j.christopherson@intel.com, Bill Wendling <morbo@google.com>
Subject: [PATCH] x86: remove memory constraint from "mov" instruction
Date: Thu, 12 Sep 2019 13:59:44 -0700	[thread overview]
Message-ID: <20190912205944.120303-1-morbo@google.com> (raw)
In-Reply-To: <CAGG=3QXxGVs-s0H2Emw1tYMtcGtQsEHrYnmHztL=vOFanZegMw@mail.gmail.com>

Remove a bogus memory constraint as x86 does not have a generic
memory-to-memory "mov" instruction.

Signed-off-by: Bill Wendling <morbo@google.com>
---
 lib/x86/desc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/x86/desc.c b/lib/x86/desc.c
index 5f37cef..451f504 100644
--- a/lib/x86/desc.c
+++ b/lib/x86/desc.c
@@ -263,7 +263,7 @@ unsigned exception_error_code(void)
 {
     unsigned short error_code;
 
-    asm("mov %%gs:6, %0" : "=rm"(error_code));
+    asm("mov %%gs:6, %0" : "=r"(error_code));
     return error_code;
 }
 
-- 
2.23.0.237.gc6a4ce50a0-goog


  reply	other threads:[~2019-09-12 21:00 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-09-09 21:19 [kvm-unit-tests PATCH] x86: remove memory constraint from "mov" instruction Bill Wendling
2019-09-10 16:44 ` Jim Mattson
2019-09-11 19:08 ` Sean Christopherson
2019-09-11 22:35   ` Bill Wendling
2019-09-12 20:59     ` Bill Wendling [this message]
2019-09-19 21:44       ` [PATCH] " Sean Christopherson
2019-09-24 14:02 ` [kvm-unit-tests PATCH] " Paolo Bonzini

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=20190912205944.120303-1-morbo@google.com \
    --to=morbo@google.com \
    --cc=kvm@vger.kernel.org \
    --cc=sean.j.christopherson@intel.com \
    /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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox