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* Assorted small ppc fixes

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Merge tag 'pull-ppc-for-9.2-2-20241127' of https://gitlab.com/npiggin/qemu into staging

* Assorted small ppc fixes

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* tag 'pull-ppc-for-9.2-2-20241127' of https://gitlab.com/npiggin/qemu:
  hw/ppc/pegasos2: Fix IRQ routing from pci.0
  ppc/spapr: fix drc index mismatch for partially enabled vcpus
  ppc/pnv: Add xscom- prefix to pervasive-control region name
  target/ppc: Fix THREAD_SIBLING_FOREACH for multi-socket
  ppc/pnv: Fix direct controls quiesce
  target/ppc: Fix non-maskable interrupt while halted

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Peter Maydell 2024-11-26 20:16:26 +00:00
commit 10bfa161fb
8 changed files with 55 additions and 7 deletions
Download patch file Download diff file Expand all files Collapse all files

8
target/ppc/cpu.h
View file

@ -1253,6 +1253,7 @@ struct CPUArchState {
/* For SMT processors */
bool has_smt_siblings;
int core_index;
int chip_index;
#if !defined(CONFIG_USER_ONLY)
/* MMU context, only relevant for full system emulation */
@ -1355,6 +1356,7 @@ struct CPUArchState {
* special way (such as routing some resume causes to 0x100, i.e. sreset).
*/
bool resume_as_sreset;
bool quiesced;
#endif
/* These resources are used only in TCG */
@ -1411,8 +1413,10 @@ struct CPUArchState {
#define THREAD_SIBLING_FOREACH(cs, cs_sibling) \
CPU_FOREACH(cs_sibling) \
if (POWERPC_CPU(cs)->env.core_index == \
POWERPC_CPU(cs_sibling)->env.core_index)
if ((POWERPC_CPU(cs)->env.chip_index == \
POWERPC_CPU(cs_sibling)->env.chip_index) && \
(POWERPC_CPU(cs)->env.core_index == \
POWERPC_CPU(cs_sibling)->env.core_index))
#define SET_FIT_PERIOD(a_, b_, c_, d_) \
do { \

7
target/ppc/excp_helper.c
View file

@ -2495,10 +2495,16 @@ static void ppc_deliver_interrupt(CPUPPCState *env, int interrupt)
}
}
/*
* system reset is not delivered via normal irq method, so have to set
* halted = 0 to resume CPU running if it was halted. Possibly we should
* move it over to using PPC_INTERRUPT_RESET rather than async_run_on_cpu.
*/
void ppc_cpu_do_system_reset(CPUState *cs)
{
PowerPCCPU *cpu = POWERPC_CPU(cs);
cs->halted = 0;
powerpc_excp(cpu, POWERPC_EXCP_RESET);
}
@ -2520,6 +2526,7 @@ void ppc_cpu_do_fwnmi_machine_check(CPUState *cs, target_ulong vector)
/* Anything for nested required here? MSR[HV] bit? */
cs->halted = 0;
powerpc_set_excp_state(cpu, vector, msr);
}