diff options
| author | Laurent Vivier <laurent@vivier.eu> | 2018-08-14 19:12:17 +0200 |
|---|---|---|
| committer | Laurent Vivier <laurent@vivier.eu> | 2018-08-17 13:56:33 +0200 |
| commit | 3e23de15237c81fe7af7c3ffa299a6ae5fec7d43 (patch) | |
| tree | 41b0808ca14091f7d436b1bd4c72c7065d24c263 /include/exec/cpu_ldst.h | |
| parent | b8dbfc9cc662ba05ea0b8ffc4598e422b76fbcbd (diff) | |
linux-user: fix 32bit g2h()/h2g()
sparc32plus has 64bit long type but only 32bit virtual address space.
For instance, "apt-get upgrade" failed because of a mmap()/msync()
sequence.
mmap() returned 0xff252000 but msync() used g2h(0xffffffffff252000)
to find the host address. The "(target_ulong)" in g2h() doesn't fix the
address because it is 64bit long.
This patch introduces an "abi_ptr" that is set to uint32_t
if the virtual address space is addressed using 32bit in the linux-user
case. It stays set to target_ulong with softmmu case.
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20180814171217.14680-1-laurent@vivier.eu>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
[lv: added "%" in TARGET_ABI_FMT_ptr "%"PRIx64]
Diffstat (limited to 'include/exec/cpu_ldst.h')
| -rw-r--r-- | include/exec/cpu_ldst.h | 23 |
1 files changed, 18 insertions, 5 deletions
diff --git a/include/exec/cpu_ldst.h b/include/exec/cpu_ldst.h index 0f2cb717b1..41ed0526e2 100644 --- a/include/exec/cpu_ldst.h +++ b/include/exec/cpu_ldst.h @@ -48,8 +48,19 @@ #define CPU_LDST_H #if defined(CONFIG_USER_ONLY) +/* sparc32plus has 64bit long but 32bit space address + * this can make bad result with g2h() and h2g() + */ +#if TARGET_VIRT_ADDR_SPACE_BITS <= 32 +typedef uint32_t abi_ptr; +#define TARGET_ABI_FMT_ptr "%x" +#else +typedef uint64_t abi_ptr; +#define TARGET_ABI_FMT_ptr "%"PRIx64 +#endif + /* All direct uses of g2h and h2g need to go away for usermode softmmu. */ -#define g2h(x) ((void *)((unsigned long)(target_ulong)(x) + guest_base)) +#define g2h(x) ((void *)((unsigned long)(abi_ptr)(x) + guest_base)) #define guest_addr_valid(x) ((x) <= GUEST_ADDR_MAX) #define h2g_valid(x) guest_addr_valid((unsigned long)(x) - guest_base) @@ -61,7 +72,7 @@ static inline int guest_range_valid(unsigned long start, unsigned long len) #define h2g_nocheck(x) ({ \ unsigned long __ret = (unsigned long)(x) - guest_base; \ - (abi_ulong)__ret; \ + (abi_ptr)__ret; \ }) #define h2g(x) ({ \ @@ -69,7 +80,9 @@ static inline int guest_range_valid(unsigned long start, unsigned long len) assert(h2g_valid(x)); \ h2g_nocheck(x); \ }) - +#else +typedef target_ulong abi_ptr; +#define TARGET_ABI_FMT_ptr TARGET_ABI_FMT_lx #endif #if defined(CONFIG_USER_ONLY) @@ -397,7 +410,7 @@ extern __thread uintptr_t helper_retaddr; * This is the equivalent of the initial fast-path code used by * TCG backends for guest load and store accesses. */ -static inline void *tlb_vaddr_to_host(CPUArchState *env, target_ulong addr, +static inline void *tlb_vaddr_to_host(CPUArchState *env, abi_ptr addr, int access_type, int mmu_idx) { #if defined(CONFIG_USER_ONLY) @@ -405,7 +418,7 @@ static inline void *tlb_vaddr_to_host(CPUArchState *env, target_ulong addr, #else int index = (addr >> TARGET_PAGE_BITS) & (CPU_TLB_SIZE - 1); CPUTLBEntry *tlbentry = &env->tlb_table[mmu_idx][index]; - target_ulong tlb_addr; + abi_ptr tlb_addr; uintptr_t haddr; switch (access_type) { |