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[Qemu-devel] [PATCH 1/2] target-i386: set target_phys_bits to 64
From: |
Aurelien Jarno |
Subject: |
[Qemu-devel] [PATCH 1/2] target-i386: set target_phys_bits to 64 |
Date: |
Wed, 9 Feb 2011 19:35:50 +0100 |
qemu i386 used to support more than 4GB of RAM through PAE, but it has
been disabled for an unknown reason. Reenable it.
Note that simply running qemu x86_64 and emulating a 32-bit CPU is not
a solution to this problem as it is about 15% slower (it needs to
emulate 64 bit registers even if half of them are not used). On the
other hand, I haven't seen any measurable impact by switching
target_phys_bits to 64.
Signed-off-by: Aurelien Jarno <address@hidden>
---
configure | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/configure b/configure
index 598e8e1..563adf4 100755
--- a/configure
+++ b/configure
@@ -2909,7 +2909,7 @@ TARGET_ABI_DIR=""
case "$target_arch2" in
i386)
- target_phys_bits=32
+ target_phys_bits=64
;;
x86_64)
TARGET_BASE_ARCH=i386
--
1.7.2.3
- [Qemu-devel] [PATCH 1/2] target-i386: set target_phys_bits to 64,
Aurelien Jarno <=