On 08/12/2025 22.32, Zhuoying Cai wrote:
Introduce Secure-IPL (SIPL) facility.
Use fac_ipl to represent bytes 136 and 137 for IPL device facilities
of the SCLP Read Info block.
Availability of SIPL facility is determined by byte 136 bit 1 of the
SCLP Read Info block. Byte 136's facilities cannot be represented
without the availability of the extended-length-SCCB, so add it as a
check for consistency.
Secure IPL is not available for guests under protected virtualization.
This feature is available starting with the gen16 CPU model.
Signed-off-by: Zhuoying Cai <[email protected]>
Reviewed-by: Collin Walling <[email protected]>
---
...
diff --git a/include/hw/s390x/sclp.h b/include/hw/s390x/sclp.h
index 33f01f85bb..f13d2ac9fc 100644
--- a/include/hw/s390x/sclp.h
+++ b/include/hw/s390x/sclp.h
@@ -136,7 +136,9 @@ typedef struct ReadInfo {
uint32_t hmfai;
uint8_t _reserved7[134 - 128]; /* 128-133 */
uint8_t fac134;
- uint8_t _reserved8[144 - 135]; /* 135-143 */
+ uint8_t _reserved8;
+ uint8_t fac_ipl[2]; /* 136-137 */
+ uint8_t _reserved9[144 - 137]; /* 138-143 */
Should that be "[144 - 138]" instead?
Thomas
