diff mbox series

[RFC,v2,12/15] s390x/cpumodel: Add Sequential-Instruction-Fetching facility

Message ID 20241206122751.189721-13-brueckner@linux.ibm.com (mailing list archive)
State New
Headers show
Series KVM: s390: CPU model for gen17 | expand

Commit Message

Hendrik Brueckner Dec. 6, 2024, 12:27 p.m. UTC
The sequential instruction fetching facility provides few guarantees,
for example, to avoid stop machine calls on enabling/disabling kprobes.

Signed-off-by: Hendrik Brueckner <brueckner@linux.ibm.com>
---
 target/s390x/cpu_features_def.h.inc | 1 +
 1 file changed, 1 insertion(+)

Comments

Janosch Frank Dec. 10, 2024, 11:50 a.m. UTC | #1
On 12/6/24 1:27 PM, Hendrik Brueckner wrote:
> The sequential instruction fetching facility provides few guarantees,
> for example, to avoid stop machine calls on enabling/disabling kprobes.
> 
> Signed-off-by: Hendrik Brueckner <brueckner@linux.ibm.com>

Reviewed-by: Janosch Frank <frankja@linux.ibm.com>
diff mbox series

Patch

diff --git a/target/s390x/cpu_features_def.h.inc b/target/s390x/cpu_features_def.h.inc
index 2c1d1cd98a..09a80844a7 100644
--- a/target/s390x/cpu_features_def.h.inc
+++ b/target/s390x/cpu_features_def.h.inc
@@ -91,6 +91,7 @@  DEF_FEAT(DFP_PACKED_CONVERSION, "dfppc", STFL, 80, "Decimal-floating-point packe
 DEF_FEAT(PPA15, "ppa15", STFL, 81, "PPA15 is installed")
 DEF_FEAT(BPB, "bpb", STFL, 82, "Branch prediction blocking")
 DEF_FEAT(MISC_INSTRUCTION_EXT4, "minste4", STFL, 84, "Miscellaneous-Instruction-Extensions Facility 4")
+DEF_FEAT(SIF, "sif", STFL, 85, "Sequential-instruction-fetching facility")
 DEF_FEAT(MSA_EXT_12, "msa12-base", STFL, 86, "Message-security-assist-extension-12 facility (excluding subfunctions)")
 DEF_FEAT(VECTOR, "vx", STFL, 129, "Vector facility")
 DEF_FEAT(INSTRUCTION_EXEC_PROT, "iep", STFL, 130, "Instruction-execution-protection facility")