motorhead/qemu
1
0
Fork 0
mirror of https://github.com/Motorhead1991/qemu.git synced 2025-08-08 02:03:56 -06:00
Code Issues Projects Releases Packages Wiki Activity Actions

target/s390x: Implement the MVPG condition-code-option bit

Browse source 
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.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
[thuth: Added logic to still inject protection exceptions]
Signed-off-by: Thomas Huth <thuth@redhat.com>
[david: Look at env->tlb_fill_exc to determine if there was an exception]
Signed-off-by: David Hildenbrand <david@redhat.com>
Tested-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20210315085449.34676-2-david@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
This commit is contained in:
Richard Henderson 2021-03-15 09:54:48 +01:00 • committed by Cornelia Huck
parent d66a52b50f
commit e56552cf07
3 changed files with 121 additions and 23 deletions
Download patch file Download diff file Expand all files Collapse all files

5
target/s390x/cpu.h
View file

@ -114,6 +114,11 @@ struct CPUS390XState {
uint64_t diag318_info;
#if !defined(CONFIG_USER_ONLY)
uint64_t tlb_fill_tec; /* translation exception code during tlb_fill */
int tlb_fill_exc; /* exception number seen during tlb_fill */
#endif
/* Fields up to this point are cleared by a CPU reset */
struct {} end_reset_fields;