Re: [PATCH v6 4/7] arm64: kvm: support user space to query RAS extension feature

Hi gengdongjiu, On 05/09/17 08:18, gengdongjiu wrote: > On 2017/9/1 2:04, James Morse wrote: >> On 28/08/17 11:38, Dongjiu Geng wrote: >>> Userspace will want to check if the CPU has the RAS >>> extension. >> >> ... but user-space wants to know if it can inject SErrors with a specified >> ESR.

Re: [PATCH v6 4/7] arm64: kvm: support user space to query RAS extension feature

Hi gengdongjiu, On 05/09/17 08:18, gengdongjiu wrote: > On 2017/9/1 2:04, James Morse wrote: >> On 28/08/17 11:38, Dongjiu Geng wrote: >>> Userspace will want to check if the CPU has the RAS >>> extension. >> >> ... but user-space wants to know if it can inject SErrors with a specified >> ESR.

Re: [PATCH v6 4/7] arm64: kvm: support user space to query RAS extension feature

James, On 2017/9/1 2:04, James Morse wrote: > Hi Dongjiu Geng, > > On 28/08/17 11:38, Dongjiu Geng wrote: >> In ARMV8.2 RAS extension, a virtual SError exception syndrome >> register(VSESR_EL2) is added. This value may be specified from >> userspace. > > I agree that the CPU support for

Re: [PATCH v6 4/7] arm64: kvm: support user space to query RAS extension feature

James, On 2017/9/1 2:04, James Morse wrote: > Hi Dongjiu Geng, > > On 28/08/17 11:38, Dongjiu Geng wrote: >> In ARMV8.2 RAS extension, a virtual SError exception syndrome >> register(VSESR_EL2) is added. This value may be specified from >> userspace. > > I agree that the CPU support for

Re: [PATCH v6 4/7] arm64: kvm: support user space to query RAS extension feature

Hi Dongjiu Geng, On 28/08/17 11:38, Dongjiu Geng wrote: > In ARMV8.2 RAS extension, a virtual SError exception syndrome > register(VSESR_EL2) is added. This value may be specified from > userspace. I agree that the CPU support for injecting SErrors with a specified ESR should be exposed to

Re: [PATCH v6 4/7] arm64: kvm: support user space to query RAS extension feature

Hi Dongjiu Geng, On 28/08/17 11:38, Dongjiu Geng wrote: > In ARMV8.2 RAS extension, a virtual SError exception syndrome > register(VSESR_EL2) is added. This value may be specified from > userspace. I agree that the CPU support for injecting SErrors with a specified ESR should be exposed to

[PATCH v6 4/7] arm64: kvm: support user space to query RAS extension feature

In ARMV8.2 RAS extension, a virtual SError exception syndrome register(VSESR_EL2) is added. This value may be specified from userspace. Userspace will want to check if the CPU has the RAS extension. If it has, it wil specify the virtual SError syndrome value, otherwise it will not be set. This

[PATCH v6 4/7] arm64: kvm: support user space to query RAS extension feature

In ARMV8.2 RAS extension, a virtual SError exception syndrome register(VSESR_EL2) is added. This value may be specified from userspace. Userspace will want to check if the CPU has the RAS extension. If it has, it wil specify the virtual SError syndrome value, otherwise it will not be set. This