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| author | Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> | 2014-02-20 18:52:24 +0100 |
|---|---|---|
| committer | Alexander Graf <agraf@suse.de> | 2014-03-05 03:07:02 +0100 |
| commit | 7c43bca004afdb2a86c20ab3131ec1eb7a78d80d (patch) | |
| tree | 307e01bd324b38976bf99cca15ea574974293c59 /target-ppc/kvm_ppc.h | |
| parent | f3c75d42adbba553eaf218a832d4fbea32c8f7b8 (diff) | |
| download | qemu-7c43bca004afdb2a86c20ab3131ec1eb7a78d80d.tar.gz | |
target-ppc: Fix page table lookup with kvm enabled
With kvm enabled, we store the hash page table information in the hypervisor.
Use ioctl to read the htab contents. Without this we get the below error when
trying to read the guest address
(gdb) x/10 do_fork
0xc000000000098660 <do_fork>: Cannot access memory at address 0xc000000000098660
(gdb)
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
[ fixes for 32 bit build (casts!), ldq_phys() API change,
Greg Kurz <gkurz@linux.vnet.ibm.com ]
Signed-off-by: Greg Kurz <gkurz@linux.vnet.ibm.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
Diffstat (limited to 'target-ppc/kvm_ppc.h')
| -rw-r--r-- | target-ppc/kvm_ppc.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/target-ppc/kvm_ppc.h b/target-ppc/kvm_ppc.h index 5f78e4be14..800e1ad083 100644 --- a/target-ppc/kvm_ppc.h +++ b/target-ppc/kvm_ppc.h @@ -39,10 +39,13 @@ uint64_t kvmppc_rma_size(uint64_t current_size, unsigned int hash_shift); int kvmppc_fixup_cpu(PowerPCCPU *cpu); bool kvmppc_has_cap_epr(void); int kvmppc_define_rtas_kernel_token(uint32_t token, const char *function); +bool kvmppc_has_cap_htab_fd(void); int kvmppc_get_htab_fd(bool write); int kvmppc_save_htab(QEMUFile *f, int fd, size_t bufsize, int64_t max_ns); int kvmppc_load_htab_chunk(QEMUFile *f, int fd, uint32_t index, uint16_t n_valid, uint16_t n_invalid); +uint64_t kvmppc_hash64_read_pteg(PowerPCCPU *cpu, target_ulong pte_index); +void kvmppc_hash64_free_pteg(uint64_t token); #else @@ -171,6 +174,11 @@ static inline int kvmppc_define_rtas_kernel_token(uint32_t token, return -1; } +static inline bool kvmppc_has_cap_htab_fd(void) +{ + return false; +} + static inline int kvmppc_get_htab_fd(bool write) { return -1; @@ -188,6 +196,17 @@ static inline int kvmppc_load_htab_chunk(QEMUFile *f, int fd, uint32_t index, abort(); } +static inline uint64_t kvmppc_hash64_read_pteg(PowerPCCPU *cpu, + target_ulong pte_index) +{ + abort(); +} + +static inline void kvmppc_hash64_free_pteg(uint64_t token) +{ + abort(); +} + #endif #ifndef CONFIG_KVM |