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hw/ppc/spapr: Restrict CONFER hypercall to TCG

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KVM handles H_CONFER and does not pass it along to QEMU, so
only vhyp (as used by TCG spapr) needs to handle it.

[npiggin: Add changelog]
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20250127102620.39159-2-philmd@linaro.org>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
This commit is contained in:
Philippe Mathieu-Daudé 2025-01-27 11:26:05 +01:00 • committed by Nicholas Piggin
parent a613b9d321
commit 3e84d03815
1 changed files with 2 additions and 0 deletions
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hw/ppc/spapr_hcall.c
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@ -580,6 +580,8 @@ static target_ulong h_confer(PowerPCCPU *cpu, SpaprMachineState *spapr,
CPUState *cs = CPU(cpu);
SpaprCpuState *spapr_cpu;
assert(tcg_enabled()); /* KVM will have handled this */
/*
* -1 means confer to all other CPUs without dispatch counter check,
* otherwise it's a targeted confer.