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[kvm-unit-tests,GIT,PULL,09/11] lib: s390x: Add 0x3d, 0x3e and 0x3f PGM constants

Message ID 20210816132054.60078-10-frankja@linux.ibm.com (mailing list archive)
State New, archived
Headers show
Series [kvm-unit-tests,GIT,PULL,01/11] s390x: Add SPDX and header comments for s390x/* and lib/s390x/* | expand

Commit Message

Janosch Frank Aug. 16, 2021, 1:20 p.m. UTC 
For UV and format 4 SIE tests we need to handle the following PGM exceptions:
0x3d Secure Storage Access (non-secure CPU accesses secure storage)
0x3e Non-Secure Storage Access (secure CPU accesses non-secure storage)
0x3f Mapping of secure guest is wrong

Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
Reviewed-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
---
 lib/s390x/asm/arch_def.h | 3 +++
 lib/s390x/interrupt.c    | 3 +++
 2 files changed, 6 insertions(+)
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Patch

diff --git a/lib/s390x/asm/arch_def.h b/lib/s390x/asm/arch_def.h
index 2f70d840..d9f51efb 100644
--- a/lib/s390x/asm/arch_def.h
+++ b/lib/s390x/asm/arch_def.h
@@ -177,6 +177,9 @@  _Static_assert(sizeof(struct lowcore) == 0x1900, "Lowcore size");
 #define PGM_INT_CODE_REGION_FIRST_TRANS		0x39
 #define PGM_INT_CODE_REGION_SECOND_TRANS	0x3a
 #define PGM_INT_CODE_REGION_THIRD_TRANS		0x3b
+#define PGM_INT_CODE_SECURE_STOR_ACCESS		0x3d
+#define PGM_INT_CODE_NON_SECURE_STOR_ACCESS	0x3e
+#define PGM_INT_CODE_SECURE_STOR_VIOLATION	0x3f
 #define PGM_INT_CODE_MONITOR_EVENT		0x40
 #define PGM_INT_CODE_PER			0x80
 #define PGM_INT_CODE_CRYPTO_OPERATION		0x119
diff --git a/lib/s390x/interrupt.c b/lib/s390x/interrupt.c
index 785b7355..01ded49d 100644
--- a/lib/s390x/interrupt.c
+++ b/lib/s390x/interrupt.c
@@ -115,6 +115,9 @@  static void fixup_pgm_int(struct stack_frame_int *stack)
 	case PGM_INT_CODE_REGION_THIRD_TRANS:
 	case PGM_INT_CODE_PER:
 	case PGM_INT_CODE_CRYPTO_OPERATION:
+	case PGM_INT_CODE_SECURE_STOR_ACCESS:
+	case PGM_INT_CODE_NON_SECURE_STOR_ACCESS:
+	case PGM_INT_CODE_SECURE_STOR_VIOLATION:
 		/* The interrupt was nullified, the old PSW points at the
 		 * responsible instruction. Forward the PSW so we don't loop.
 		 */