haraldwolff/qemu-patch-raspberry4
1
0
Fork 0
Code Issues Pull requests Packages Projects Releases Wiki Activity

target/ppc: powerpc_excp: Set vector earlier

Browse source 
None of the interrupt setup code touches 'vector', so we can move it
earlier in the function. This will allow us to later move the System
Call Vectored setup that is on the top level into the
POWERPC_EXCP_SYSCALL_VECTORED code block.

This patch also moves the verification for when 'excp' does not have
an address associated with it. We now bail a little earlier when that
is the case. This should not cause any visible effects.

Signed-off-by: Fabiano Rosas <farosas@linux.ibm.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Message-Id: <20211229165751.3774248-4-farosas@linux.ibm.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
This commit is contained in:
Fabiano Rosas 2022-01-04 07:55:34 +01:00 committed by Cédric Le Goater
parent 2541e68658
commit d1cbee61ab
1 changed files with 8 additions and 8 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

16
target/ppc/excp_helper.c
View file

@ -429,6 +429,14 @@ static void powerpc_excp(PowerPCCPU *cpu, int excp_model, int excp)
}
#endif
vector = env->excp_vectors[excp];
if (vector == (target_ulong)-1ULL) {
cpu_abort(cs, "Raised an exception without defined vector %d\n",
excp);
}
vector |= env->excp_prefix;
switch (excp) {
case POWERPC_EXCP_CRITICAL: /* Critical input */
switch (excp_model) {
@ -905,14 +913,6 @@ static void powerpc_excp(PowerPCCPU *cpu, int excp_model, int excp)
}
#endif
vector = env->excp_vectors[excp];
if (vector == (target_ulong)-1ULL) {
cpu_abort(cs, "Raised an exception without defined vector %d\n",
excp);
}
vector |= env->excp_prefix;
#if defined(TARGET_PPC64)
if (excp_model == POWERPC_EXCP_BOOKE) {
if (env->spr[SPR_BOOKE_EPCR] & EPCR_ICM) {