Re: [Qemu-devel] [PATCH v3] target/ppc: Allow privileged access to SPR_PCR

2018-06-04 Thread David Gibson
On Mon, Jun 04, 2018 at 06:15:13PM +0930, Joel Stanley wrote: > The powerpc Linux kernel[1] and skiboot firmware[2] recently gained changes > that cause the Processor Compatibility Register (PCR) SPR to be cleared. > > These changes cause Linux to fail to boot on the Qemu powernv machine > with an

[Qemu-devel] [PATCH v3] target/ppc: Allow privileged access to SPR_PCR

2018-06-04 Thread Joel Stanley
The powerpc Linux kernel[1] and skiboot firmware[2] recently gained changes that cause the Processor Compatibility Register (PCR) SPR to be cleared. These changes cause Linux to fail to boot on the Qemu powernv machine with an error: Trying to write privileged spr 338 (0x152) at 30017f0c