HAX on Windows, memory lease error

[Dmitry Ilyin]

Today I tried to use QEMU on Windows 8.1 x64 with Intel HAX.

Command line: qemu-system-x86_64.exe -accel hax -m 8000 -hda /opt/disk/ubuntu.img -cdrom /opt/iso/ubuntu-17.04-server-amd64.iso

Host machine has 32Gb physical memory, I got error:

HAX is working and emulator runs in fast virt mode.
**
ERROR:A:/msys64/home/admin/git/qemu/target/i386/hax-mem.c:210:hax_process_section: assertion failed: (size <= UINT32_MAX)

When using -m 4000 (and below) everything is fine. But if I try use >4000 and <8000 I get crash with errors:

HAX is working and emulator runs in fast virt mode.
hax_transaction_commit: Failed mapping @0x0000000100000000+0x78800000 flags 00
VCPU shutdown request
VCPU shutdown request
VCPU shutdown request
VCPU shutdown request
VCPU shutdown request
VCPU shutdown request
VCPU shutdown request
VCPU shutdown request
VCPU shutdown request
VCPU shutdown request
VCPU shutdown request
VCPU shutdown request
VCPU shutdown request
VCPU shutdown request
VCPU shutdown request
VCPU shutdown request
VCPU shutdown request
VCPU shutdown request
VCPU shutdown request
VCPU shutdown request
VCPU shutdown request

[Dmitry Ilyin (widgetii)]

It seems that HAX not working at all:

qemu-system-x86_64.exe -accel hax -fda /opt/iso/freedos.img
(with image of boot floppy from official FreeDOS site)

Crash on loading with:

VCPU shutdown request
VCPU shutdown request
VCPU shutdown request
VCPU shutdown request
VCPU shutdown request
VCPU shutdown request
VCPU shutdown request

qemu-system-x86_64.exe -accel hax -cdrom /opt/iso/ubuntu-17.04-server-amd64.iso, hang on:

Booting from DVD/CD...

ISOLINUX 6.03 20170128 ETCD

[Stefan Weil (ubuntu-weilnetz)]

See https://software.intel.com/en-us/android/articles/installation-instructions-for-intel-hardware-accelerated-execution-manager-windows:

"QEMU or Android Emulator will fail to launch if the guest RAM size (specified with the -m option for QEMU or -memory for Android Emulator) exceeds 4095MB."

HAX is limited to a 32 bit memory size. There is no way to change that without breaking compatibility.

[Dmitry Ilyin (widgetii)]

The main problem is that HAX currently doesn't work properly at all on my both Windows 8.1 and Mac OS X 10.12.6 machines.
I can give other examples if it is necessary

[Thomas Huth (th-huth)]

Looking through old bug tickets... is this still an issue with the latest version of QEMU? Or could we close this ticket nowadays?

[Launchpad Janitor (janitor)]

[Expired for QEMU because there has been no activity for 60 days.]