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ppc/spapr: Remove copy-paste from pa-features 

TCG does not support copy/paste instructions. Remove it from
ibm,pa-features. This has never been implemented under TCG or
practically usable under KVM, so it won't be missed.

Reviewed-by: Harsh Prateek Bora <harshpb@linux.ibm.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
This commit is contained in:
Nicholas Piggin 2024-01-18 22:08:16 +10:00
parent a5a5778622
commit 17aa684ff7
1 changed files with 6 additions and 2 deletions
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8
hw/ppc/spapr.c
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@ -237,6 +237,10 @@ static void spapr_dt_pa_features(SpaprMachineState *spapr,
* SSO (SAO) ordering is supported on KVM and thread=single hosts, * SSO (SAO) ordering is supported on KVM and thread=single hosts,
* but not MTTCG, so disable it. To advertise it, a cap would have * but not MTTCG, so disable it. To advertise it, a cap would have
* to be added, or support implemented for MTTCG. * to be added, or support implemented for MTTCG.
*
* Copy/paste is not supported by TCG, so it is not advertised. KVM
* can execute them but it has no accelerator drivers which are usable,
* so there isn't much need for it anyway.
*/ */
uint8_t pa_features_206[] = { 6, 0, uint8_t pa_features_206[] = { 6, 0,
@ -260,8 +264,8 @@ static void spapr_dt_pa_features(SpaprMachineState *spapr,
0x80, 0x00, 0x80, 0x00, 0x80, 0x00, /* 24 - 29 */ 0x80, 0x00, 0x80, 0x00, 0x80, 0x00, /* 24 - 29 */
/* 30: MMR, 32: LE atomic, 34: EBB + ext EBB */ /* 30: MMR, 32: LE atomic, 34: EBB + ext EBB */
0x80, 0x00, 0x80, 0x00, 0xC0, 0x00, /* 30 - 35 */ 0x80, 0x00, 0x80, 0x00, 0xC0, 0x00, /* 30 - 35 */
/* 36: SPR SO, 38: Copy/Paste, 40: Radix MMU */ /* 36: SPR SO, 40: Radix MMU */
0x80, 0x00, 0x80, 0x00, 0x80, 0x00, /* 36 - 41 */ 0x80, 0x00, 0x00, 0x00, 0x80, 0x00, /* 36 - 41 */
/* 42: PM, 44: PC RA, 46: SC vec'd */ /* 42: PM, 44: PC RA, 46: SC vec'd */
0x80, 0x00, 0x80, 0x00, 0x80, 0x00, /* 42 - 47 */ 0x80, 0x00, 0x80, 0x00, 0x80, 0x00, /* 42 - 47 */
/* 48: SIMD, 50: QP BFP, 52: String */ /* 48: SIMD, 50: QP BFP, 52: String */