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| author | Richard Henderson | 2021-02-12 19:48:43 +0100 |
|---|---|---|
| committer | Peter Maydell | 2021-02-16 12:04:53 +0100 |
| commit | 3e8f1628e864201692aa28996f8f64f9761555af (patch) | |
| tree | 9ab5b2b6687bac3398e021b610fa728c2081dc28 /include/exec | |
| parent | exec: Introduce cpu_untagged_addr (diff) | |
| download | qemu-3e8f1628e864201692aa28996f8f64f9761555af.tar.gz qemu-3e8f1628e864201692aa28996f8f64f9761555af.tar.xz qemu-3e8f1628e864201692aa28996f8f64f9761555af.zip | |
exec: Use cpu_untagged_addr in g2h; split out g2h_untagged
Use g2h_untagged in contexts that have no cpu, e.g. the binary
loaders that operate before the primary cpu is created. As a
colollary, target_mmap and friends must use untagged addresses,
since they are used by the loaders.
Use g2h_untagged on values returned from target_mmap, as the
kernel never applies a tag itself.
Use g2h_untagged on all pc values. The only current user of
tags, aarch64, removes tags from code addresses upon branch,
so "pc" is always untagged.
Use g2h with the cpu context on hand wherever possible.
Use g2h_untagged in lock_user, which will be updated soon.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210212184902.1251044-13-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'include/exec')
| -rw-r--r-- | include/exec/cpu_ldst.h | 12 | ||||
| -rw-r--r-- | include/exec/exec-all.h | 2 |
2 files changed, 11 insertions, 3 deletions
diff --git a/include/exec/cpu_ldst.h b/include/exec/cpu_ldst.h index d9dc1de414..c54069e3cd 100644 --- a/include/exec/cpu_ldst.h +++ b/include/exec/cpu_ldst.h @@ -77,7 +77,15 @@ static inline abi_ptr cpu_untagged_addr(CPUState *cs, abi_ptr x) #endif /* All direct uses of g2h and h2g need to go away for usermode softmmu. */ -#define g2h(x) ((void *)((uintptr_t)(abi_ptr)(x) + guest_base)) +static inline void *g2h_untagged(abi_ptr x) +{ + return (void *)((uintptr_t)(x) + guest_base); +} + +static inline void *g2h(CPUState *cs, abi_ptr x) +{ + return g2h_untagged(cpu_untagged_addr(cs, x)); +} static inline bool guest_addr_valid(abi_ulong x) { @@ -448,7 +456,7 @@ static inline int cpu_ldsw_code(CPUArchState *env, abi_ptr addr) static inline void *tlb_vaddr_to_host(CPUArchState *env, abi_ptr addr, MMUAccessType access_type, int mmu_idx) { - return g2h(addr); + return g2h(env_cpu(env), addr); } #else void *tlb_vaddr_to_host(CPUArchState *env, abi_ptr addr, diff --git a/include/exec/exec-all.h b/include/exec/exec-all.h index f933c74c44..d30c7a84f6 100644 --- a/include/exec/exec-all.h +++ b/include/exec/exec-all.h @@ -616,7 +616,7 @@ static inline tb_page_addr_t get_page_addr_code_hostp(CPUArchState *env, void **hostp) { if (hostp) { - *hostp = g2h(addr); + *hostp = g2h_untagged(addr); } return addr; } |