Re: [RFC PATCH 00/13] Support UXL field in mstatus

2021-08-08 Thread LIU Zhiwei
On 2021/8/6 下午6:05, Alistair Francis wrote: On Thu, Aug 5, 2021 at 5:15 PM LIU Zhiwei wrote: On 2021/8/5 下午2:01, Alistair Francis wrote: On Thu, Aug 5, 2021 at 12:55 PM LIU Zhiwei wrote: This patch set implements UXL field in mstatus register. Programmer can change UXLEN by writting to th

Re: [RFC PATCH 00/13] Support UXL field in mstatus

2021-08-06 Thread Alistair Francis
On Thu, Aug 5, 2021 at 5:15 PM LIU Zhiwei wrote: > > > On 2021/8/5 下午2:01, Alistair Francis wrote: > > On Thu, Aug 5, 2021 at 12:55 PM LIU Zhiwei wrote: > >> This patch set implements UXL field in mstatus register. Programmer can > >> change > >> UXLEN by writting to this field. So that you can

Re: [RFC PATCH 00/13] Support UXL field in mstatus

2021-08-05 Thread LIU Zhiwei
On 2021/8/5 下午3:20, Bin Meng wrote: On Thu, Aug 5, 2021 at 3:16 PM LIU Zhiwei wrote: On 2021/8/5 下午2:01, Alistair Francis wrote: On Thu, Aug 5, 2021 at 12:55 PM LIU Zhiwei wrote: This patch set implements UXL field in mstatus register. Programmer can change UXLEN by writting to this field

Re: [RFC PATCH 00/13] Support UXL field in mstatus

2021-08-05 Thread Bin Meng
On Thu, Aug 5, 2021 at 3:16 PM LIU Zhiwei wrote: > > > On 2021/8/5 下午2:01, Alistair Francis wrote: > > On Thu, Aug 5, 2021 at 12:55 PM LIU Zhiwei wrote: > >> This patch set implements UXL field in mstatus register. Programmer can > >> change > >> UXLEN by writting to this field. So that you can

Re: [RFC PATCH 00/13] Support UXL field in mstatus

2021-08-05 Thread LIU Zhiwei
On 2021/8/5 下午2:01, Alistair Francis wrote: On Thu, Aug 5, 2021 at 12:55 PM LIU Zhiwei wrote: This patch set implements UXL field in mstatus register. Programmer can change UXLEN by writting to this field. So that you can run a 32 bit program on a 64 bit CPU. Awesome! Do you have any steps f

Re: [RFC PATCH 00/13] Support UXL field in mstatus

2021-08-04 Thread Alistair Francis
On Thu, Aug 5, 2021 at 12:55 PM LIU Zhiwei wrote: > > This patch set implements UXL field in mstatus register. Programmer can change > UXLEN by writting to this field. So that you can run a 32 bit program > on a 64 bit CPU. Awesome! Do you have any steps for building a rootFS to test this? Alist

[RFC PATCH 00/13] Support UXL field in mstatus

2021-08-04 Thread LIU Zhiwei
This patch set implements UXL field in mstatus register. Programmer can change UXLEN by writting to this field. So that you can run a 32 bit program on a 64 bit CPU. This patch set depends on one patch set by Richard Henderson https://lists.gnu.org/archive/html/qemu-riscv/2021-07/msg00059.html. L