From: Giacomo Travaglini <giacomo.travaglini@arm.com>
Date: Mon, 9 Apr 2018 12:25:46 +0000 (+0100)
Subject: arch-arm: Add E2H bit to HCR_EL2 System register
X-Git-Tag: v19.0.0.0~2111
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=2456c917ac654f6b67243c72a47240d22a2bf712;p=gem5.git

arch-arm: Add E2H bit to HCR_EL2 System register

This patch adds the EL2 Host bit to the HCR_EL2 register.  Enables a
configuration where a Host Operating System is running in EL2, and the
Host Operating System's applications are running in EL0.

Change-Id: I92d21ed9f8958c58f135dca1b6a97460ba4c02f9
Signed-off-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/10381
Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>
---

diff --git a/src/arch/arm/miscregs.hh b/src/arch/arm/miscregs.hh
index 06d1a0d79..b43b04f72 100644
--- a/src/arch/arm/miscregs.hh
+++ b/src/arch/arm/miscregs.hh
@@ -1478,6 +1478,7 @@ namespace ArmISA
     EndBitUnion(HSTR)
 
     BitUnion64(HCR)
+        Bitfield<34>     e2h;   // AArch64
         Bitfield<33>     id;    // AArch64
         Bitfield<32>     cd;    // AArch64
         Bitfield<31>     rw;    // AArch64