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[Qemu-devel] [PULL v2 05/11] target/openrisc: add numcores and coreid su
From: |
Stafford Horne |
Subject: |
[Qemu-devel] [PULL v2 05/11] target/openrisc: add numcores and coreid support |
Date: |
Thu, 4 May 2017 09:53:20 +0900 |
These are used to identify the processor in SMP system. Their
definition has been defined in verilog cores but it not yet part of the
spec but it will be soon.
The proposal for this is available:
https://openrisc.io/proposals/core-identifier-and-number-of-cores
Reviewed-by: Richard Henderson <address@hidden>
Signed-off-by: Stafford Horne <address@hidden>
---
target/openrisc/sys_helper.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/target/openrisc/sys_helper.c b/target/openrisc/sys_helper.c
index 6ba8162..e13666b 100644
--- a/target/openrisc/sys_helper.c
+++ b/target/openrisc/sys_helper.c
@@ -233,6 +233,12 @@ target_ulong HELPER(mfspr)(CPUOpenRISCState *env,
case TO_SPR(0, 64): /* ESR */
return env->esr;
+ case TO_SPR(0, 128): /* COREID */
+ return 0;
+
+ case TO_SPR(0, 129): /* NUMCORES */
+ return 1;
+
case TO_SPR(1, 512) ... TO_SPR(1, 512+DTLB_SIZE-1): /* DTLBW0MR 0-127 */
idx = spr - TO_SPR(1, 512);
return env->tlb->dtlb[0][idx].mr;
--
2.9.3
- [Qemu-devel] [PULL v2 00/11] Fixes and features for OpenRISC, Stafford Horne, 2017/05/03
- [Qemu-devel] [PULL v2 01/11] MAINTAINERS: Add myself as openrisc maintainer, Stafford Horne, 2017/05/03
- [Qemu-devel] [PULL v2 02/11] target/openrisc: Implement EVBAR register, Stafford Horne, 2017/05/03
- [Qemu-devel] [PULL v2 03/11] target/openrisc: Implement EPH bit, Stafford Horne, 2017/05/03
- [Qemu-devel] [PULL v2 04/11] target/openrisc: Fixes for memory debugging, Stafford Horne, 2017/05/03
- [Qemu-devel] [PULL v2 05/11] target/openrisc: add numcores and coreid support,
Stafford Horne <=
- [Qemu-devel] [PULL v2 06/11] migration: Add VMSTATE_UINTTL_2DARRAY(), Stafford Horne, 2017/05/03
- [Qemu-devel] [PULL v2 07/11] target/openrisc: implement shadow registers, Stafford Horne, 2017/05/03
- [Qemu-devel] [PULL v2 08/11] migration: Add VMSTATE_STRUCT_2DARRAY(), Stafford Horne, 2017/05/03
- [Qemu-devel] [PULL v2 09/11] target/openrisc: Implement full vmstate serialization, Stafford Horne, 2017/05/03
- [Qemu-devel] [PULL v2 10/11] target/openrisc: Remove duplicate features property, Stafford Horne, 2017/05/03
- [Qemu-devel] [PULL v2 11/11] target/openrisc: Support non-busy idle state using PMR SPR, Stafford Horne, 2017/05/03
- Re: [Qemu-devel] [PULL v2 00/11] Fixes and features for OpenRISC, Stefan Hajnoczi, 2017/05/05