On 6/15/20 10:54 PM, Lijun Pan wrote:
>
>
>> On Jun 15, 2020, at 12:36 PM, Cédric Le Goater <[email protected]> wrote:
>>
>> Hello,
>>
>> On 6/13/20 6:20 AM, Lijun Pan wrote:
>>> This patch series add several newly introduced 32/64-bit vector
>>> instructions in Power ISA 3.1. The newly added instructions are
>>> flagged as ISA300 temporarily in vmx-ops.inc.c and vmx-impl.inc.c
>>> to make them compile and function since Power ISA 3.1, together
>>> with next generation processor, has not been fully enabled in QEMU
>>> yet. When Power ISA 3.1 and next generation processor are fully
>>> supported, the flags should be changed.
>>
>> What do you mean ?
>>
>> ISA 3.1 and POWER10 are merged in Linux and in the QEMU pseries
>> and PowerNV (OPAL) machines.
>>
>> It's very much empty but it's there.
>
> I mean it does not work if you boots the guest in TCG mode, not KVM mode.
Something is wrong in your environment. With the latest QEMU and
Linux 5.8-rc1, here is a POWER10 pseries machine :
BusyBox v1.30.1 (Ubuntu 1:1.30.1-4ubuntu4) built-in shell (ash)
Enter 'help' for a list of built-in commands.
(initramfs)
(initramfs) cat /proc/cpuinfo
processor : 0
cpu : POWER10 (architected), altivec supported
clock : 1000.000000MHz
revision : 1.0 (pvr 0080 0100)
processor : 1
cpu : POWER10 (architected), altivec supported
clock : 1000.000000MHz
revision : 1.0 (pvr 0080 0100)
processor : 2
cpu : POWER10 (architected), altivec supported
clock : 1000.000000MHz
revision : 1.0 (pvr 0080 0100)
processor : 3
cpu : POWER10 (architected), altivec supported
clock : 1000.000000MHz
revision : 1.0 (pvr 0080 0100)
timebase : 512000000
platform : pSeries
model : IBM pSeries (emulated by qemu)
machine : CHRP IBM pSeries (emulated by qemu)
MMU : Radix
(initramfs) uname -a
Linux (none) 5.8.0-rc1+ #199 SMP Tue Jun 16 07:54:06 CEST 2020 ppc64le
GNU/Linux
KVM works also but you will need to run the guest under a QEMU
PowerNV machine using my powernv-5.1 branch. All support for
POWER10 baremetal is not merged yet.
Thanks,
C.
