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| author | Daniel Henrique Barboza | 2022-03-02 06:51:36 +0100 |
|---|---|---|
| committer | Cédric Le Goater | 2022-03-02 06:51:36 +0100 |
| commit | d3412df20a321f2c4d98f5759cef2441206d5bd8 (patch) | |
| tree | b8939d6121c3a781872db9ca186f5251e2c4de48 /target/ppc/cpu.h | |
| parent | target/ppc: add PPC_INTERRUPT_EBB and EBB exceptions (diff) | |
| download | qemu-d3412df20a321f2c4d98f5759cef2441206d5bd8.tar.gz qemu-d3412df20a321f2c4d98f5759cef2441206d5bd8.tar.xz qemu-d3412df20a321f2c4d98f5759cef2441206d5bd8.zip | |
target/ppc: trigger PERFM EBBs from power8-pmu.c
This patch adds the EBB exception support that are triggered by
Performance Monitor alerts. This happens when a Performance Monitor
alert occurs and MMCR0_EBE, BESCR_PME and BESCR_GE are set.
fire_PMC_interrupt() will execute the raise_ebb_perfm_exception() helper
which will check for MMCR0_EBE, BESCR_PME and BESCR_GE bits. If all bits
are set, do_ebb() will attempt to trigger a PERFM EBB event.
If the EBB facility is enabled in both FSCR and HFSCR we consider that
the EBB is valid and set BESCR_PMEO. After that, if we're running in
problem state, fire a POWERPC_EXCP_PERM_EBB immediately. Otherwise we'll
queue a PPC_INTERRUPT_EBB.
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20220225101140.1054160-5-danielhb413@gmail.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Diffstat (limited to 'target/ppc/cpu.h')
| -rw-r--r-- | target/ppc/cpu.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/target/ppc/cpu.h b/target/ppc/cpu.h index 79375e8df4..1b687521c7 100644 --- a/target/ppc/cpu.h +++ b/target/ppc/cpu.h @@ -2502,6 +2502,11 @@ void QEMU_NORETURN raise_exception_err(CPUPPCState *env, uint32_t exception, void QEMU_NORETURN raise_exception_err_ra(CPUPPCState *env, uint32_t exception, uint32_t error_code, uintptr_t raddr); +/* PERFM EBB helper*/ +#if defined(TARGET_PPC64) && !defined(CONFIG_USER_ONLY) +void raise_ebb_perfm_exception(CPUPPCState *env); +#endif + #if !defined(CONFIG_USER_ONLY) static inline int booke206_tlbm_id(CPUPPCState *env, ppcmas_tlb_t *tlbm) { |