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[Qemu-ppc] [RFC PATCH 4/9] target-ppc: support KVM_CAP_PPC_MMU_RADIX, KV
From: |
Sam Bobroff |
Subject: |
[Qemu-ppc] [RFC PATCH 4/9] target-ppc: support KVM_CAP_PPC_MMU_RADIX, KVM_CAP_PPC_MMU_HASH_V3 |
Date: |
Tue, 7 Feb 2017 13:56:47 +1100 |
Query and cache the value of two new KVM capabilities that indicate
KVM's support for new radix and hash modes of the MMU.
Signed-off-by: Sam Bobroff <address@hidden>
---
target/ppc/kvm.c | 14 ++++++++++++++
target/ppc/kvm_ppc.h | 12 ++++++++++++
2 files changed, 26 insertions(+)
diff --git a/target/ppc/kvm.c b/target/ppc/kvm.c
index 390d6342cc..8d6fd1b067 100644
--- a/target/ppc/kvm.c
+++ b/target/ppc/kvm.c
@@ -81,6 +81,8 @@ static int cap_papr;
static int cap_htab_fd;
static int cap_fixup_hcalls;
static int cap_htm; /* Hardware transactional memory support */
+static int cap_mmu_radix;
+static int cap_mmu_hash;
static uint32_t debug_inst_opcode;
@@ -134,6 +136,8 @@ int kvm_arch_init(MachineState *ms, KVMState *s)
cap_htab_fd = kvm_check_extension(s, KVM_CAP_PPC_HTAB_FD);
cap_fixup_hcalls = kvm_check_extension(s, KVM_CAP_PPC_FIXUP_HCALL);
cap_htm = kvm_vm_check_extension(s, KVM_CAP_PPC_HTM);
+ cap_mmu_radix = kvm_vm_check_extension(s, KVM_CAP_PPC_MMU_RADIX);
+ cap_mmu_hash = kvm_vm_check_extension(s, KVM_CAP_PPC_MMU_HASH_V3);
if (!cap_interrupt_level) {
fprintf(stderr, "KVM: Couldn't find level irq capability. Expect the "
@@ -2408,6 +2412,16 @@ bool kvmppc_has_cap_htm(void)
return cap_htm;
}
+bool kvmppc_has_cap_mmu_radix(void)
+{
+ return cap_mmu_radix;
+}
+
+bool kvmppc_has_cap_mmu_hash(void)
+{
+ return cap_mmu_hash;
+}
+
static PowerPCCPUClass *ppc_cpu_get_family_class(PowerPCCPUClass *pcc)
{
ObjectClass *oc = OBJECT_CLASS(pcc);
diff --git a/target/ppc/kvm_ppc.h b/target/ppc/kvm_ppc.h
index 4b43283913..1c1b94847c 100644
--- a/target/ppc/kvm_ppc.h
+++ b/target/ppc/kvm_ppc.h
@@ -56,6 +56,8 @@ void kvmppc_hash64_write_pte(CPUPPCState *env, target_ulong
pte_index,
target_ulong pte0, target_ulong pte1);
bool kvmppc_has_cap_fixup_hcalls(void);
bool kvmppc_has_cap_htm(void);
+bool kvmppc_has_cap_mmu_radix(void);
+bool kvmppc_has_cap_mmu_hash(void);
int kvmppc_enable_hwrng(void);
int kvmppc_put_books_sregs(PowerPCCPU *cpu);
PowerPCCPUClass *kvm_ppc_get_host_cpu_class(void);
@@ -255,6 +257,16 @@ static inline bool kvmppc_has_cap_htm(void)
return false;
}
+static inline bool kvmppc_has_cap_mmu_radix(void)
+{
+ return false;
+}
+
+static inline bool kvmppc_has_cap_mmu_hash(void)
+{
+ return false;
+}
+
static inline int kvmppc_enable_hwrng(void)
{
return -1;
--
2.11.0
- [Qemu-ppc] [RFC PATCH 0/9] ISA 3.00 KVM guest support, Sam Bobroff, 2017/02/06
- [Qemu-ppc] [RFC PATCH 1/9] spapr: fix off-by-one error in spapr_ovec_populate_dt(), Sam Bobroff, 2017/02/06
- [Qemu-ppc] [RFC PATCH 4/9] target-ppc: support KVM_CAP_PPC_MMU_RADIX, KVM_CAP_PPC_MMU_HASH_V3,
Sam Bobroff <=
- [Qemu-ppc] [RFC PATCH 3/9] spapr: Add ibm, processor-radix-AP-encodings to the device tree, Sam Bobroff, 2017/02/06
- [Qemu-ppc] [RFC PATCH 2/9] Update headers using update-linux-headers.sh, Sam Bobroff, 2017/02/06
- Re: [Qemu-ppc] [RFC PATCH 2/9] Update headers using update-linux-headers.sh, David Gibson, 2017/02/08