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[Qemu-devel] [RFC PATCH v2 07/12] target-ppc: support KVM_CAP_PPC_MMU_RA
From: |
Sam Bobroff |
Subject: |
[Qemu-devel] [RFC PATCH v2 07/12] target-ppc: support KVM_CAP_PPC_MMU_RADIX, KVM_CAP_PPC_MMU_HASH_V3 |
Date: |
Thu, 23 Feb 2017 17:00:00 +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>
---
v2:
* cap_mmu_hash renamed to cap_mmu_hash_v3.
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 cf62a42c1f..8b153808fd 100644
--- a/target/ppc/kvm.c
+++ b/target/ppc/kvm.c
@@ -83,6 +83,8 @@ 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;
@@ -136,6 +138,8 @@ 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 "
@@ -2430,6 +2434,16 @@ 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 8da2ee418a..56e222dfc2 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_v3(void);
int kvmppc_enable_hwrng(void);
int kvmppc_put_books_sregs(PowerPCCPU *cpu);
PowerPCCPUClass *kvm_ppc_get_host_cpu_class(void);
@@ -262,6 +264,16 @@ 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-devel] [RFC PATCH v2 04/12] Move virtio_mmio.h to fix update-linux-headers.sh, (continued)
- [Qemu-devel] [RFC PATCH v2 07/12] target-ppc: support KVM_CAP_PPC_MMU_RADIX, KVM_CAP_PPC_MMU_HASH_V3,
Sam Bobroff <=
- [Qemu-devel] [RFC PATCH v2 06/12] spapr: Add ibm, processor-radix-AP-encodings to the device tree, Sam Bobroff, 2017/02/23
- [Qemu-devel] [RFC PATCH v2 09/12] spapr: Add h_register_process_table() hypercall, Sam Bobroff, 2017/02/23
- [Qemu-devel] [RFC PATCH v2 11/12] spapr: Enable ISA 3.0 MMU mode selection via CAS, Sam Bobroff, 2017/02/23
- [Qemu-devel] [RFC PATCH v2 05/12] Update headers using update-linux-headers.sh, Sam Bobroff, 2017/02/23
- [Qemu-devel] [RFC PATCH v2 10/12] spapr: move spapr_populate_pa_features(), Sam Bobroff, 2017/02/23
- [Qemu-devel] [RFC PATCH v2 12/12] spapr: Workaround for broken radix guests, Sam Bobroff, 2017/02/23