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[Qemu-ppc] [PATCH v4 2/8] target-ppc: support KVM_CAP_PPC_MMU_RADIX, KVM
From: |
Sam Bobroff |
Subject: |
[Qemu-ppc] [PATCH v4 2/8] target-ppc: support KVM_CAP_PPC_MMU_RADIX, KVM_CAP_PPC_MMU_HASH_V3 |
Date: |
Thu, 16 Mar 2017 17:08:14 +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 55191acb57..0f0051eeb9 100644
--- a/target/ppc/kvm.c
+++ b/target/ppc/kvm.c
@@ -85,6 +85,8 @@ 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_v3;
static uint32_t debug_inst_opcode;
@@ -139,6 +141,8 @@ 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_v3 = 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 "
@@ -2359,6 +2363,16 @@ 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_v3(void)
+{
+ return cap_mmu_hash_v3;
+}
+
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 08ecf75a46..64189a48fa 100644
--- a/target/ppc/kvm_ppc.h
+++ b/target/ppc/kvm_ppc.h
@@ -54,6 +54,8 @@ void kvmppc_read_hptes(ppc_hash_pte64_t *hptes, hwaddr ptex,
int n);
void kvmppc_write_hpte(hwaddr ptex, uint64_t pte0, uint64_t 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_v3(void);
int kvmppc_enable_hwrng(void);
int kvmppc_put_books_sregs(PowerPCCPU *cpu);
PowerPCCPUClass *kvm_ppc_get_host_cpu_class(void);
@@ -254,6 +256,16 @@ 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_v3(void)
+{
+ return false;
+}
+
static inline int kvmppc_enable_hwrng(void)
{
return -1;
--
2.11.0
- [Qemu-ppc] [PATCH v4 0/8] ISA 3.00 KVM guest support, Sam Bobroff, 2017/03/16
- [Qemu-ppc] [PATCH v4 2/8] target-ppc: support KVM_CAP_PPC_MMU_RADIX, KVM_CAP_PPC_MMU_HASH_V3,
Sam Bobroff <=
- [Qemu-ppc] [PATCH v4 4/8] target/ppc: Add new H-CALL shells for in memory table translation, Sam Bobroff, 2017/03/16
- [Qemu-ppc] [PATCH v4 3/8] spapr: Only setup HPT if necessary, Sam Bobroff, 2017/03/16
- [Qemu-ppc] [PATCH v4 1/8] spapr: Add ibm, processor-radix-AP-encodings to the device tree, Sam Bobroff, 2017/03/16
- [Qemu-ppc] [PATCH v4 8/8] spapr: Workaround for broken radix guests, Sam Bobroff, 2017/03/16