Re: [PATCH v6 5/7] arm64: kvm: route synchronous external abort exceptions to el2

2017-10-16 Thread gengdongjiu
Hi James, > >> Today I added the support to do some minimal emulation for >> RAS-Error-Record registers, thanks >> for the good suggestion. > > Where can I find this patch? > I'd like to repost it as part of the SError_rework/RAS/IESB series: this is > one > of the bits KVM needs but I didn't touc

Re: [PATCH v6 5/7] arm64: kvm: route synchronous external abort exceptions to el2

2017-10-16 Thread James Morse
Hi gengdongjiu, On 14/09/17 12:12, gengdongjiu wrote: > On 2017/9/8 0:31, James Morse wrote: >> KVM already handles external aborts from lower exception levels, no more work >> needs doing for TEA. > If it is firmware first solution, that is SCR_EL3.EA=1, all SError interrupt > and synchronous Ex

Re: [PATCH v6 5/7] arm64: kvm: route synchronous external abort exceptions to el2

2017-09-14 Thread James Morse
Hi gengdongjiu, On 14/09/17 12:12, gengdongjiu wrote: > On 2017/9/8 0:31, James Morse wrote: >> KVM already handles external aborts from lower exception levels, no more work >> needs doing for TEA. > If it is firmware first solution, that is SCR_EL3.EA=1, all SError interrupt > and synchronous E

Re: [PATCH v6 5/7] arm64: kvm: route synchronous external abort exceptions to el2

2017-09-14 Thread gengdongjiu
James, On 2017/9/8 0:31, James Morse wrote: > KVM already handles external aborts from lower exception levels, no more work > needs doing for TEA. If it is firmware first solution, that is SCR_EL3.EA=1, all SError interrupt and synchronous External Abort exceptions are taken to EL3, so EL3 firmwa

Re: [PATCH v6 5/7] arm64: kvm: route synchronous external abort exceptions to el2

2017-09-13 Thread gengdongjiu
On 2017/9/8 0:31, James Morse wrote: > Hi Dongjiu Geng, > > On 28/08/17 11:38, Dongjiu Geng wrote: >> ARMv8.2 adds a new bit HCR_EL2.TEA which controls to >> route synchronous external aborts to EL2, and adds a >> trap control bit HCR_EL2.TERR which controls to >> trap all Non-secure EL1&0 error

Re: [PATCH v6 5/7] arm64: kvm: route synchronous external abort exceptions to el2

2017-09-07 Thread James Morse
Hi Dongjiu Geng, On 28/08/17 11:38, Dongjiu Geng wrote: > ARMv8.2 adds a new bit HCR_EL2.TEA which controls to > route synchronous external aborts to EL2, and adds a > trap control bit HCR_EL2.TERR which controls to > trap all Non-secure EL1&0 error record accesses to EL2. > > This patch enables t

[PATCH v6 5/7] arm64: kvm: route synchronous external abort exceptions to el2

2017-08-28 Thread Dongjiu Geng
ARMv8.2 adds a new bit HCR_EL2.TEA which controls to route synchronous external aborts to EL2, and adds a trap control bit HCR_EL2.TERR which controls to trap all Non-secure EL1&0 error record accesses to EL2. This patch enables the two bits for the guest OS. when an synchronous abort is generated