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[PATCH 6/9] hw/ppc/spapr_hcall.c: log H_BEST_ENERGY as unsupported
From: |
Daniel Henrique Barboza |
Subject: |
[PATCH 6/9] hw/ppc/spapr_hcall.c: log H_BEST_ENERGY as unsupported |
Date: |
Mon, 7 Mar 2022 16:15:50 -0300 |
This is another hcall that is part of the Partition Energy Management
(PEM) option. As with h_get_em_parms(), we do not support it.
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
---
hw/ppc/spapr_hcall.c | 27 +++++++++++++++++++++++++++
include/hw/ppc/spapr.h | 1 +
2 files changed, 28 insertions(+)
diff --git a/hw/ppc/spapr_hcall.c b/hw/ppc/spapr_hcall.c
index b572ef50bb..db6cb6bb89 100644
--- a/hw/ppc/spapr_hcall.c
+++ b/hw/ppc/spapr_hcall.c
@@ -1564,6 +1564,31 @@ static target_ulong h_get_em_parms(PowerPCCPU *cpu,
return H_FUNCTION;
}
+static target_ulong h_best_energy(PowerPCCPU *cpu,
+ SpaprMachineState *spapr,
+ target_ulong opcode,
+ target_ulong *args)
+{
+ /*
+ * This HCALL is described as follows in PAPR+ V2.8 section 14.14.2.1:
+ *
+ * "This hcall() returns a hint to the caller as to the probable impact
+ * toward the goal of minimal platform energy consumption for a given
+ * level of computing capacity that would result from releasing or
+ * activating various computing resources."
+ *
+ * In short, this HCALL provides a hint about what would happen with
+ * the energy consumption if the OS tries to increase/decrease
+ * the performance of a given device/CPU/mem.
+ *
+ * This is also part of the PEM option and, as with h_get_em_parms, is
+ * not supported.
+ */
+ qemu_log_mask(LOG_UNSUPP, "Unsupported SPAPR hcall 0x"TARGET_FMT_lx"%s\n",
+ opcode, " (H_BEST_ENERGY)");
+ return H_FUNCTION;
+}
+
/*
* When this handler returns, the environment is switched to the L2 guest
* and TCG begins running that. spapr_exit_nested() performs the switch from
@@ -1903,7 +1928,9 @@ static void hypercall_register_types(void)
spapr_register_hypercall(KVMPPC_H_TLB_INVALIDATE, h_tlb_invalidate);
spapr_register_hypercall(KVMPPC_H_COPY_TOFROM_GUEST, h_copy_tofrom_guest);
+ /* Unsupported PEM option h-calls */
spapr_register_hypercall(H_GET_EM_PARMS, h_get_em_parms);
+ spapr_register_hypercall(H_BEST_ENERGY, h_best_energy);
}
type_init(hypercall_register_types)
diff --git a/include/hw/ppc/spapr.h b/include/hw/ppc/spapr.h
index f5c33dcc86..7995bc0cb6 100644
--- a/include/hw/ppc/spapr.h
+++ b/include/hw/ppc/spapr.h
@@ -535,6 +535,7 @@ struct SpaprMachineState {
#define H_SET_MPP 0x2D0
#define H_GET_MPP 0x2D4
#define H_HOME_NODE_ASSOCIATIVITY 0x2EC
+#define H_BEST_ENERGY 0x2F4
#define H_XIRR_X 0x2FC
#define H_RANDOM 0x300
#define H_SET_MODE 0x31C
--
2.35.1
- [PATCH 0/9] add LOG_UNSUPP log type + mark hcalls as unsupp, Daniel Henrique Barboza, 2022/03/07
- [PATCH 1/9] util/log.c: add LOG_UNSUPP type, Daniel Henrique Barboza, 2022/03/07
- [PATCH 2/9] hw/ppc/spapr_hcall.c: log h_clean_slb() as unsupported, Daniel Henrique Barboza, 2022/03/07
- [PATCH 3/9] hw/ppc/spapr_hcall.c: log h_invalidate_pid() as unsupported, Daniel Henrique Barboza, 2022/03/07
- [PATCH 4/9] hw/ppc/spapr_hcall.c: log h_copy_tofrom_guest() as unsupported, Daniel Henrique Barboza, 2022/03/07
- [PATCH 5/9] hw/ppc/spapr_hcall.c: log H_GET_EM_PARMS as unsupported, Daniel Henrique Barboza, 2022/03/07
- [PATCH 6/9] hw/ppc/spapr_hcall.c: log H_BEST_ENERGY as unsupported,
Daniel Henrique Barboza <=
- [PATCH 7/9] hw/ppc/spapr_hcall.c: log H_QUERY_VAS_CAPABILITIES as unsupported, Daniel Henrique Barboza, 2022/03/07
- [PATCH 8/9] hw/ppc/spapr_hcall.c: log H_GET_PPP as unsupported, Daniel Henrique Barboza, 2022/03/07
- [PATCH 9/9] hw/ppc/spapr_hcall.c: log H_VIOCTL as unsupported, Daniel Henrique Barboza, 2022/03/07
- Re: [PATCH 0/9] add LOG_UNSUPP log type + mark hcalls as unsupp, Philippe Mathieu-Daudé, 2022/03/07
- Re: [PATCH 0/9] add LOG_UNSUPP log type + mark hcalls as unsupp, Peter Maydell, 2022/03/07