From e749a6716ee069a5c91bdabb094080419ef0dcda Mon Sep 17 00:00:00 2001 From: David Gibson Date: Thu, 27 Apr 2017 02:15:53 +0200 Subject: [PATCH 18/23] target-ppc: support KVM_CAP_PPC_MMU_RADIX, KVM_CAP_PPC_MMU_HASH_V3 RH-Author: David Gibson Message-id: <20170427021558.4884-3-dgibson@redhat.com> Patchwork-id: 74916 O-Subject: [Pegas-1.0 qemu-kvm-rhev PATCH 2/7] target-ppc: support KVM_CAP_PPC_MMU_RADIX, KVM_CAP_PPC_MMU_HASH_V3 Bugzilla: 1368786 RH-Acked-by: Thomas Huth RH-Acked-by: Laurent Vivier RH-Acked-by: Miroslav Rezanina From: Sam Bobroff 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 Signed-off-by: David Gibson (cherry picked from commit cf1c4cce7c0d53d2a778a4b124d02ea3a84f1663) Siged-off-by: David Gibson Signed-off-by: Miroslav Rezanina --- 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 9c355ce..b733578 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 08ecf75..64189a4 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; -- 1.8.3.1