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[PULL 40/41] target/ppc: 74xx: Set SRRs directly in exception code
From: |
Cédric Le Goater |
Subject: |
[PULL 40/41] target/ppc: 74xx: Set SRRs directly in exception code |
Date: |
Mon, 31 Jan 2022 12:08:10 +0100 |
From: Fabiano Rosas <farosas@linux.ibm.com>
The 74xx does not have alternate/hypervisor Save and Restore
Registers, so we can set SRR0 and SRR1 directly.
Signed-off-by: Fabiano Rosas <farosas@linux.ibm.com>
Message-Id: <20220127201116.1154733-9-farosas@linux.ibm.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
---
target/ppc/excp_helper.c | 13 ++-----------
1 file changed, 2 insertions(+), 11 deletions(-)
diff --git a/target/ppc/excp_helper.c b/target/ppc/excp_helper.c
index b7921c09562f..4e6bb87b70a3 100644
--- a/target/ppc/excp_helper.c
+++ b/target/ppc/excp_helper.c
@@ -556,7 +556,6 @@ static void powerpc_excp_74xx(PowerPCCPU *cpu, int excp)
CPUState *cs = CPU(cpu);
CPUPPCState *env = &cpu->env;
target_ulong msr, new_msr, vector;
- int srr0, srr1;
if (excp <= POWERPC_EXCP_NONE || excp >= POWERPC_EXCP_NB) {
cpu_abort(cs, "Invalid PowerPC exception %d. Aborting\n", excp);
@@ -575,10 +574,6 @@ static void powerpc_excp_74xx(PowerPCCPU *cpu, int excp)
*/
new_msr = env->msr & ((target_ulong)1 << MSR_ME);
- /* target registers */
- srr0 = SPR_SRR0;
- srr1 = SPR_SRR1;
-
/*
* Hypervisor emulation assistance interrupt only exists on server
* arch 2.05 server or later.
@@ -731,10 +726,6 @@ static void powerpc_excp_74xx(PowerPCCPU *cpu, int excp)
cpu_abort(cs, "Trying to deliver HV exception (MSR) %d with "
"no HV support\n", excp);
}
- if (srr0 == SPR_HSRR0) {
- cpu_abort(cs, "Trying to deliver HV exception (HSRR) %d with "
- "no HV support\n", excp);
- }
}
/*
@@ -746,10 +737,10 @@ static void powerpc_excp_74xx(PowerPCCPU *cpu, int excp)
}
/* Save PC */
- env->spr[srr0] = env->nip;
+ env->spr[SPR_SRR0] = env->nip;
/* Save MSR */
- env->spr[srr1] = msr;
+ env->spr[SPR_SRR1] = msr;
powerpc_set_excp_state(cpu, vector, new_msr);
}
--
2.34.1
- [PULL 32/41] target/ppc: books: Program exception cleanup, (continued)
- [PULL 32/41] target/ppc: books: Program exception cleanup, Cédric Le Goater, 2022/01/31
- [PULL 01/41] spapr: Force 32bit when resetting a core, Cédric Le Goater, 2022/01/31
- [PULL 30/41] target/ppc: books: Machine Check exception cleanup, Cédric Le Goater, 2022/01/31
- [PULL 05/41] ppc/pnv: use a do-while() loop in pnv_phb3_translate_tve(), Cédric Le Goater, 2022/01/31
- [PULL 16/41] target/ppc: Introduce powerpc_excp_40x, Cédric Le Goater, 2022/01/31
- [PULL 12/41] hw/ppc/vof: Add missing includes, Cédric Le Goater, 2022/01/31
- [PULL 38/41] target/ppc: 74xx: System Call exception cleanup, Cédric Le Goater, 2022/01/31
- [PULL 29/41] target/ppc: Simplify powerpc_excp_books, Cédric Le Goater, 2022/01/31
- [PULL 41/41] target/ppc: Remove support for the PowerPC 602 CPU, Cédric Le Goater, 2022/01/31
- [PULL 24/41] target/ppc: 405: Data Storage exception cleanup, Cédric Le Goater, 2022/01/31
- [PULL 40/41] target/ppc: 74xx: Set SRRs directly in exception code,
Cédric Le Goater <=
- [PULL 07/41] ppc/xive: check return value of ldq_be_dma(), Cédric Le Goater, 2022/01/31
- [PULL 02/41] target/ppc: 603: fix restore of GPRs 0-3 on rfi, Cédric Le Goater, 2022/01/31
- Re: [PULL 02/41] target/ppc: 603: fix restore of GPRs 0-3 on rfi, Cédric Le Goater, 2022/01/31
- Re: [PULL 02/41] target/ppc: 603: fix restore of GPRs 0-3 on rfi, Mark Cave-Ayland, 2022/01/31
[PULL 36/41] target/ppc: 74xx: External interrupt cleanup, Cédric Le Goater, 2022/01/31