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[Qemu-ppc] [PULL 39/44] Enable H_CLEAR_MOD and H_CLEAR_REF hypercalls on
From: |
David Gibson |
Subject: |
[Qemu-ppc] [PULL 39/44] Enable H_CLEAR_MOD and H_CLEAR_REF hypercalls on KVM/PPC64. |
Date: |
Thu, 22 Sep 2016 16:37:37 +1000 |
From: Nathan Whitehorn <address@hidden>
These are mandatory per PAPR and available on Linux 4.3 and newer kernels. The
calls in question are required to run FreeBSD guests with reasonable
performance, so enable them if possible.
Signed-off-by: Nathan Whitehorn <address@hidden>
[dwg: Added a stub to fix compile without KVM (e.g. on x86 host)]
Signed-off-by: David Gibson <address@hidden>
---
hw/ppc/spapr.c | 3 +++
target-ppc/kvm.c | 6 ++++++
target-ppc/kvm_ppc.h | 5 +++++
3 files changed, 14 insertions(+)
diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c
index 79d36b3..e1769d0 100644
--- a/hw/ppc/spapr.c
+++ b/hw/ppc/spapr.c
@@ -1814,6 +1814,9 @@ static void ppc_spapr_init(MachineState *machine)
/* Enable H_LOGICAL_CI_* so SLOF can talk to in-kernel devices */
kvmppc_enable_logical_ci_hcalls();
kvmppc_enable_set_mode_hcall();
+
+ /* H_CLEAR_MOD/_REF are mandatory in PAPR, but off by default */
+ kvmppc_enable_clear_ref_mod_hcalls();
}
/* allocate RAM */
diff --git a/target-ppc/kvm.c b/target-ppc/kvm.c
index 4457337..c89991c 100644
--- a/target-ppc/kvm.c
+++ b/target-ppc/kvm.c
@@ -2056,6 +2056,12 @@ void kvmppc_enable_set_mode_hcall(void)
kvmppc_enable_hcall(kvm_state, H_SET_MODE);
}
+void kvmppc_enable_clear_ref_mod_hcalls(void)
+{
+ kvmppc_enable_hcall(kvm_state, H_CLEAR_REF);
+ kvmppc_enable_hcall(kvm_state, H_CLEAR_MOD);
+}
+
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 5461d10..a778184 100644
--- a/target-ppc/kvm_ppc.h
+++ b/target-ppc/kvm_ppc.h
@@ -24,6 +24,7 @@ int kvmppc_get_hypercall(CPUPPCState *env, uint8_t *buf, int
buf_len);
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_set_papr(PowerPCCPU *cpu);
int kvmppc_set_compat(PowerPCCPU *cpu, uint32_t cpu_version);
void kvmppc_set_mpic_proxy(PowerPCCPU *cpu, int mpic_proxy);
@@ -113,6 +114,10 @@ static inline void kvmppc_enable_set_mode_hcall(void)
{
}
+static inline void kvmppc_enable_clear_ref_mod_hcalls(void)
+{
+}
+
static inline void kvmppc_set_papr(PowerPCCPU *cpu)
{
}
--
2.7.4
- [Qemu-ppc] [PULL 08/44] ppc: Fix signal delivery in ppc-user and ppc64-user, (continued)
- [Qemu-ppc] [PULL 08/44] ppc: Fix signal delivery in ppc-user and ppc64-user, David Gibson, 2016/09/22
- [Qemu-ppc] [PULL 22/44] target-ppc: consolidate load operations, David Gibson, 2016/09/22
- [Qemu-ppc] [PULL 27/44] target-ppc: convert st[16, 32, 64]r to use new macro, David Gibson, 2016/09/22
- [Qemu-ppc] [PULL 14/44] adb.c: add support for QKeyCode, David Gibson, 2016/09/22
- [Qemu-ppc] [PULL 25/44] target-ppc: consolidate store operations, David Gibson, 2016/09/22
- [Qemu-ppc] [PULL 41/44] ppc/xics: An ICS with offset 0 is assumed to be uninitialized, David Gibson, 2016/09/22
- [Qemu-ppc] [PULL 24/44] target-ppc: convert ld[16, 32, 64]ur to use new macro, David Gibson, 2016/09/22
- [Qemu-ppc] [PULL 30/44] target-ppc: consolidate store conditional, David Gibson, 2016/09/22
- [Qemu-ppc] [PULL 29/44] target-ppc: move out stqcx impementation, David Gibson, 2016/09/22
- [Qemu-ppc] [PULL 44/44] monitor: fix crash for platforms without a CPU 0, David Gibson, 2016/09/22
- [Qemu-ppc] [PULL 39/44] Enable H_CLEAR_MOD and H_CLEAR_REF hypercalls on KVM/PPC64.,
David Gibson <=
- [Qemu-ppc] [PULL 03/44] target-ppc: add vector insert instructions, David Gibson, 2016/09/22
- [Qemu-ppc] [PULL 05/44] target-ppc: add vector count trailing zeros instructions, David Gibson, 2016/09/22
- [Qemu-ppc] [PULL 38/44] target-ppc: tlbie/tlbivax should have global effect, David Gibson, 2016/09/22
- [Qemu-ppc] [PULL 37/44] target-ppc: add flag in check_tlb_flush(), David Gibson, 2016/09/22
- [Qemu-ppc] [PULL 21/44] spapr_vscsi: convert to trace framework instead of DPRINTF, David Gibson, 2016/09/22
- [Qemu-ppc] [PULL 07/44] target-ppc: add vector permute right indexed instruction, David Gibson, 2016/09/22
- [Qemu-ppc] [PULL 11/44] tests: add RTAS command in the protocol, David Gibson, 2016/09/22
- [Qemu-ppc] [PULL 28/44] target-ppc: consolidate load with reservation, David Gibson, 2016/09/22
- Re: [Qemu-ppc] [Qemu-devel] [PULL 00/44] ppc-for-2.8 queue 20160922, no-reply, 2016/09/22
- Re: [Qemu-ppc] [PULL 00/44] ppc-for-2.8 queue 20160922, Peter Maydell, 2016/09/22