Re: [PATCH v3] target/s390x: Implement the MVPG condition-code-option bit

2021-03-03 Thread Thomas Huth
On 03/03/2021 12.40, David Hildenbrand wrote: On 03.03.21 12:36, Thomas Huth wrote: On 03/03/2021 07.25, Thomas Huth wrote: On 03/03/2021 03.44, Richard Henderson wrote: If the CCO bit is set, MVPG should not generate an exception but report page translation faults via a CC code. Create a new

Re: [PATCH v3] target/s390x: Implement the MVPG condition-code-option bit

2021-03-03 Thread David Hildenbrand
On 03.03.21 12:36, Thomas Huth wrote: On 03/03/2021 07.25, Thomas Huth wrote: On 03/03/2021 03.44, Richard Henderson wrote: If the CCO bit is set, MVPG should not generate an exception but report page translation faults via a CC code. Create a new helper, access_prepare_nf, which can use probe

Re: [PATCH v3] target/s390x: Implement the MVPG condition-code-option bit

2021-03-03 Thread Thomas Huth
On 03/03/2021 07.25, Thomas Huth wrote: On 03/03/2021 03.44, Richard Henderson wrote: If the CCO bit is set, MVPG should not generate an exception but report page translation faults via a CC code. Create a new helper, access_prepare_nf, which can use probe_access_flags in non-faulting mode, and

Re: [PATCH v3] target/s390x: Implement the MVPG condition-code-option bit

2021-03-02 Thread Thomas Huth
On 03/03/2021 03.44, Richard Henderson wrote: If the CCO bit is set, MVPG should not generate an exception but report page translation faults via a CC code. Create a new helper, access_prepare_nf, which can use probe_access_flags in non-faulting mode, and then handle watchpoints. Cc: David Hild

[PATCH v3] target/s390x: Implement the MVPG condition-code-option bit

2021-03-02 Thread Richard Henderson
If the CCO bit is set, MVPG should not generate an exception but report page translation faults via a CC code. Create a new helper, access_prepare_nf, which can use probe_access_flags in non-faulting mode, and then handle watchpoints. Cc: David Hildenbrand Reported-by: Thomas Huth Signed-off-by