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[Qemu-commits] [qemu/qemu] 1a8e80: tcg-arm: Avoid ldrd/strd for user-onl


From: GitHub
Subject: [Qemu-commits] [qemu/qemu] 1a8e80: tcg-arm: Avoid ldrd/strd for user-only emulation
Date: Fri, 28 Mar 2014 09:00:05 -0700

  Branch: refs/heads/master
  Home:   https://github.com/qemu/qemu
  Commit: 1a8e80d7e82aa385ad887dba5d039e399a18264b
      
https://github.com/qemu/qemu/commit/1a8e80d7e82aa385ad887dba5d039e399a18264b
  Author: Richard Henderson <address@hidden>
  Date:   2014-03-27 (Thu, 27 Mar 2014)

  Changed paths:
    M tcg/arm/tcg-target.c

  Log Message:
  -----------
  tcg-arm: Avoid ldrd/strd for user-only emulation

The arm ldrd/strd insns must cause alignment traps, whereas
at least for armv7 ldr/str must handle unaligned operations.

While this is hardly the only problem facing user-only emu,
this solves one problem for i386 on armv7 emulation.

Reviewed-by: Peter Maydell <address@hidden>
Reported-by: Huw Davies <address@hidden>
Signed-off-by: Richard Henderson <address@hidden>


  Commit: b3706faf0d8e4f9275c73895d93a16fbffb9d370
      
https://github.com/qemu/qemu/commit/b3706faf0d8e4f9275c73895d93a16fbffb9d370
  Author: Peter Maydell <address@hidden>
  Date:   2014-03-28 (Fri, 28 Mar 2014)

  Changed paths:
    M tcg/arm/tcg-target.c

  Log Message:
  -----------
  Merge remote-tracking branch 'remotes/rth/tcg-arm-unaligned' into staging

* remotes/rth/tcg-arm-unaligned:
  tcg-arm: Avoid ldrd/strd for user-only emulation

Signed-off-by: Peter Maydell <address@hidden>


Compare: https://github.com/qemu/qemu/compare/3b6144bdbb42...b3706faf0d8e

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