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| author | Suraj Jitindar Singh <sjitindarsingh@gmail.com> | 2019-03-06 17:06:08 +1100 |
|---|---|---|
| committer | David Gibson <david@gibson.dropbear.id.au> | 2019-03-12 14:33:04 +1100 |
| commit | 68f9f7084146b48acb68c606b81edcb04d69d41c (patch) | |
| tree | 783b41efed17ce4fe1eb7e6909e056e87a6a8b06 | |
| parent | e075623aa517b0690ec978772df008d7e00ebce5 (diff) | |
| download | focaccia-qemu-68f9f7084146b48acb68c606b81edcb04d69d41c.tar.gz focaccia-qemu-68f9f7084146b48acb68c606b81edcb04d69d41c.zip | |
target/ppc/spapr: Enable H_PAGE_INIT in-kernel handling
The H_CALL H_PAGE_INIT can be used to zero or copy a page of guest memory. Enable the in-kernel H_PAGE_INIT handler. The in-kernel handler takes half the time to complete compared to handling the H_CALL in userspace. Signed-off-by: Suraj Jitindar Singh <sjitindarsingh@gmail.com> Message-Id: <20190306060608.19935-1-sjitindarsingh@gmail.com> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
| -rw-r--r-- | hw/ppc/spapr.c | 3 | ||||
| -rw-r--r-- | target/ppc/kvm.c | 5 | ||||
| -rw-r--r-- | target/ppc/kvm_ppc.h | 5 |
3 files changed, 13 insertions, 0 deletions
diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c index 755056875c..e764e89806 100644 --- a/hw/ppc/spapr.c +++ b/hw/ppc/spapr.c @@ -2822,6 +2822,9 @@ static void spapr_machine_init(MachineState *machine) /* H_CLEAR_MOD/_REF are mandatory in PAPR, but off by default */ kvmppc_enable_clear_ref_mod_hcalls(); + + /* Enable H_PAGE_INIT */ + kvmppc_enable_h_page_init(); } /* allocate RAM */ diff --git a/target/ppc/kvm.c b/target/ppc/kvm.c index 4a79a75f63..1c0a586ea8 100644 --- a/target/ppc/kvm.c +++ b/target/ppc/kvm.c @@ -2044,6 +2044,11 @@ void kvmppc_enable_clear_ref_mod_hcalls(void) kvmppc_enable_hcall(kvm_state, H_CLEAR_MOD); } +void kvmppc_enable_h_page_init(void) +{ + kvmppc_enable_hcall(kvm_state, H_PAGE_INIT); +} + void kvmppc_set_papr(PowerPCCPU *cpu) { CPUState *cs = CPU(cpu); diff --git a/target/ppc/kvm_ppc.h b/target/ppc/kvm_ppc.h index 2937b36cae..2c2ea30e87 100644 --- a/target/ppc/kvm_ppc.h +++ b/target/ppc/kvm_ppc.h @@ -23,6 +23,7 @@ int kvmppc_set_interrupt(PowerPCCPU *cpu, int irq, int level); void kvmppc_enable_logical_ci_hcalls(void); void kvmppc_enable_set_mode_hcall(void); void kvmppc_enable_clear_ref_mod_hcalls(void); +void kvmppc_enable_h_page_init(void); void kvmppc_set_papr(PowerPCCPU *cpu); int kvmppc_set_compat(PowerPCCPU *cpu, uint32_t compat_pvr); void kvmppc_set_mpic_proxy(PowerPCCPU *cpu, int mpic_proxy); @@ -138,6 +139,10 @@ static inline void kvmppc_enable_clear_ref_mod_hcalls(void) { } +static inline void kvmppc_enable_h_page_init(void) +{ +} + static inline void kvmppc_set_papr(PowerPCCPU *cpu) { } |