Re: [Qemu-devel] [PATCH-for-4.2 v2 3/6] s390x/tcg: Flush the TLB of all CPUs on SSKE and RRBE

2019-08-14 Thread David Hildenbrand
On 14.08.19 12:44, Alex Bennée wrote: > > David Hildenbrand writes: > >> On 14.08.19 12:06, Alex Bennée wrote: >>> >>> David Hildenbrand writes: >>> Whenever we modify a storage key, we shuld flush the TLBs of all CPUs, so the MMU fault handling code can properly consider the changed

Re: [Qemu-devel] [PATCH-for-4.2 v2 3/6] s390x/tcg: Flush the TLB of all CPUs on SSKE and RRBE

2019-08-14 Thread Alex Bennée
David Hildenbrand writes: > On 14.08.19 12:06, Alex Bennée wrote: >> >> David Hildenbrand writes: >> >>> Whenever we modify a storage key, we shuld flush the TLBs of all CPUs, >>> so the MMU fault handling code can properly consider the changed storage >>> key (to e.g., properly set the

Re: [Qemu-devel] [PATCH-for-4.2 v2 3/6] s390x/tcg: Flush the TLB of all CPUs on SSKE and RRBE

2019-08-14 Thread David Hildenbrand
On 14.08.19 12:06, Alex Bennée wrote: > > David Hildenbrand writes: > >> Whenever we modify a storage key, we shuld flush the TLBs of all CPUs, >> so the MMU fault handling code can properly consider the changed storage >> key (to e.g., properly set the reference and change bit on the next >>

Re: [Qemu-devel] [PATCH-for-4.2 v2 3/6] s390x/tcg: Flush the TLB of all CPUs on SSKE and RRBE

2019-08-14 Thread Alex Bennée
David Hildenbrand writes: > Whenever we modify a storage key, we shuld flush the TLBs of all CPUs, > so the MMU fault handling code can properly consider the changed storage > key (to e.g., properly set the reference and change bit on the next > accesses). > > These functions are barely used