Re: [PATCH RFC] hw/arm/virt: Avoid unexpected warning from Linux guest on host with Fujitsu CPUs

2024-06-07 Thread Zhenyu Zhang
On Thu, Jun 6, 2024 at 7:57 PM Peter Maydell wrote: > > On Thu, 6 Jun 2024 at 11:48, Zhenyu Zhang wrote: > > > > Multiple warning messages and corresponding backtraces are observed when > > Linux > > guest is booted on the host with Fujitsu CPUs. One of them is shown as > > below. > > > > [

Re: [PATCH RFC] hw/arm/virt: Avoid unexpected warning from Linux guest on host with Fujitsu CPUs

2024-06-07 Thread Zhenyu Zhang
On Fri, Jun 7, 2024 at 6:17 PM Peter Maydell wrote: > > On Thu, 6 Jun 2024 at 22:18, Robin Murphy wrote: > > > > On 2024-06-06 6:13 pm, Jonathan Cameron wrote: > > > On Thu, 6 Jun 2024 12:56:59 +0100 > > > Peter Maydell wrote: > > > > > >> On Thu, 6 Jun 2024 at 11:48, Zhenyu Zhang wrote: > > >>

Re: [PATCH RFC] hw/arm/virt: Avoid unexpected warning from Linux guest on host with Fujitsu CPUs

2024-06-07 Thread Peter Maydell
On Thu, 6 Jun 2024 at 22:18, Robin Murphy wrote: > > On 2024-06-06 6:13 pm, Jonathan Cameron wrote: > > On Thu, 6 Jun 2024 12:56:59 +0100 > > Peter Maydell wrote: > > > >> On Thu, 6 Jun 2024 at 11:48, Zhenyu Zhang wrote: > >>> In Linux, a check is applied to every device which is exposed through

Re: [PATCH RFC] hw/arm/virt: Avoid unexpected warning from Linux guest on host with Fujitsu CPUs

2024-06-06 Thread Robin Murphy
On 2024-06-06 6:13 pm, Jonathan Cameron wrote: On Thu, 6 Jun 2024 12:56:59 +0100 Peter Maydell wrote: On Thu, 6 Jun 2024 at 11:48, Zhenyu Zhang wrote: Multiple warning messages and corresponding backtraces are observed when Linux guest is booted on the host with Fujitsu CPUs. One of them is

Re: [PATCH RFC] hw/arm/virt: Avoid unexpected warning from Linux guest on host with Fujitsu CPUs

2024-06-06 Thread Jonathan Cameron via
On Thu, 6 Jun 2024 12:56:59 +0100 Peter Maydell wrote: > On Thu, 6 Jun 2024 at 11:48, Zhenyu Zhang wrote: > > > > Multiple warning messages and corresponding backtraces are observed when > > Linux > > guest is booted on the host with Fujitsu CPUs. One of them is shown as > > below. > > > > [

Re: [PATCH RFC] hw/arm/virt: Avoid unexpected warning from Linux guest on host with Fujitsu CPUs

2024-06-06 Thread Peter Maydell
On Thu, 6 Jun 2024 at 11:48, Zhenyu Zhang wrote: > > Multiple warning messages and corresponding backtraces are observed when Linux > guest is booted on the host with Fujitsu CPUs. One of them is shown as below. > > [0.032443] [ cut here ] > [0.032446] uart-pl011 90

[PATCH RFC] hw/arm/virt: Avoid unexpected warning from Linux guest on host with Fujitsu CPUs

2024-06-06 Thread Zhenyu Zhang
Multiple warning messages and corresponding backtraces are observed when Linux guest is booted on the host with Fujitsu CPUs. One of them is shown as below. [0.032443] [ cut here ] [0.032446] uart-pl011 900.pl011: ARCH_DMA_MINALIGN smaller than CTR_EL0.CWG (128