Re: [Qemu-devel] [PATCH 2/2] exec: make address spaces 64-bit wide

2013-11-11 Thread Paolo Bonzini
Il 10/11/2013 11:31, Michael S. Tsirkin ha scritto: > > Reported-by: Luiz Capitulino > > Signed-off-by: Paolo Bonzini > > So this causes a 12% performance regression on some TCG > tests, I think we should look into a smarter > datastructure to solve the issues. It causes a 12% performance regre

Re: [Qemu-devel] [PATCH 2/2] exec: make address spaces 64-bit wide

2013-11-10 Thread Michael S. Tsirkin
On Thu, Nov 07, 2013 at 05:14:37PM +0100, Paolo Bonzini wrote: > As an alternative to commit 818f86b (exec: limit system memory > size, 2013-11-04) let's just make all address spaces 64-bit wide. > This eliminates problems with phys_page_find ignoring bits above > TARGET_PHYS_ADDR_SPACE_BITS and ad

[Qemu-devel] [PATCH 2/2] exec: make address spaces 64-bit wide

2013-11-07 Thread Paolo Bonzini
As an alternative to commit 818f86b (exec: limit system memory size, 2013-11-04) let's just make all address spaces 64-bit wide. This eliminates problems with phys_page_find ignoring bits above TARGET_PHYS_ADDR_SPACE_BITS and address_space_translate_internal consequently messing up the computations