diff options
Diffstat (limited to 'include/user')
| -rw-r--r-- | include/user/cpu_loop.h | 12 | ||||
| -rw-r--r-- | include/user/guest-host.h | 49 | ||||
| -rw-r--r-- | include/user/page-protection.h | 30 |
3 files changed, 38 insertions, 53 deletions
diff --git a/include/user/cpu_loop.h b/include/user/cpu_loop.h index 589c66543f..ad8a1d711f 100644 --- a/include/user/cpu_loop.h +++ b/include/user/cpu_loop.h @@ -20,11 +20,9 @@ #ifndef USER_CPU_LOOP_H #define USER_CPU_LOOP_H -#include "exec/abi_ptr.h" +#include "exec/vaddr.h" #include "exec/mmu-access-type.h" -#include "exec/log.h" -#include "exec/target_long.h" -#include "special-errno.h" + /** * adjust_signal_pc: @@ -46,7 +44,7 @@ MMUAccessType adjust_signal_pc(uintptr_t *pc, bool is_write); * Return true if the write fault has been handled, and should be re-tried. */ bool handle_sigsegv_accerr_write(CPUState *cpu, sigset_t *old_set, - uintptr_t host_pc, abi_ptr guest_addr); + uintptr_t host_pc, vaddr guest_addr); /** * cpu_loop_exit_sigsegv: @@ -59,7 +57,7 @@ bool handle_sigsegv_accerr_write(CPUState *cpu, sigset_t *old_set, * Use the TCGCPUOps hook to record cpu state, do guest operating system * specific things to raise SIGSEGV, and jump to the main cpu loop. */ -G_NORETURN void cpu_loop_exit_sigsegv(CPUState *cpu, target_ulong addr, +G_NORETURN void cpu_loop_exit_sigsegv(CPUState *cpu, vaddr addr, MMUAccessType access_type, bool maperr, uintptr_t ra); @@ -73,7 +71,7 @@ G_NORETURN void cpu_loop_exit_sigsegv(CPUState *cpu, target_ulong addr, * Use the TCGCPUOps hook to record cpu state, do guest operating system * specific things to raise SIGBUS, and jump to the main cpu loop. */ -G_NORETURN void cpu_loop_exit_sigbus(CPUState *cpu, target_ulong addr, +G_NORETURN void cpu_loop_exit_sigbus(CPUState *cpu, vaddr addr, MMUAccessType access_type, uintptr_t ra); diff --git a/include/user/guest-host.h b/include/user/guest-host.h index 8d2079bbbb..8f7ef75896 100644 --- a/include/user/guest-host.h +++ b/include/user/guest-host.h @@ -8,9 +8,9 @@ #ifndef USER_GUEST_HOST_H #define USER_GUEST_HOST_H -#include "user/abitypes.h" +#include "exec/vaddr.h" #include "user/guest-base.h" -#include "cpu.h" +#include "accel/tcg/cpu-ops.h" /* * If non-zero, the guest virtual address space is a contiguous subset @@ -23,59 +23,48 @@ extern unsigned long reserved_va; /* - * Limit the guest addresses as best we can. - * - * When not using -R reserved_va, we cannot really limit the guest - * to less address space than the host. For 32-bit guests, this - * acts as a sanity check that we're not giving the guest an address - * that it cannot even represent. For 64-bit guests... the address - * might not be what the real kernel would give, but it is at least - * representable in the guest. - * - * TODO: Improve address allocation to avoid this problem, and to - * avoid setting bits at the top of guest addresses that might need - * to be used for tags. + * The last byte of the guest address space. + * If reserved_va is non-zero, guest_addr_max matches. + * If reserved_va is zero, guest_addr_max equals the full guest space. */ -#define GUEST_ADDR_MAX_ \ - ((MIN_CONST(TARGET_VIRT_ADDR_SPACE_BITS, TARGET_ABI_BITS) <= 32) ? \ - UINT32_MAX : ~0ul) -#define GUEST_ADDR_MAX (reserved_va ? : GUEST_ADDR_MAX_) +extern unsigned long guest_addr_max; -#ifndef TARGET_TAGGED_ADDRESSES -static inline abi_ptr cpu_untagged_addr(CPUState *cs, abi_ptr x) +static inline vaddr cpu_untagged_addr(CPUState *cs, vaddr x) { + const TCGCPUOps *tcg_ops = cs->cc->tcg_ops; + if (tcg_ops->untagged_addr) { + return tcg_ops->untagged_addr(cs, x); + } return x; } -#endif /* All direct uses of g2h and h2g need to go away for usermode softmmu. */ -static inline void *g2h_untagged(abi_ptr x) +static inline void *g2h_untagged(vaddr x) { return (void *)((uintptr_t)(x) + guest_base); } -static inline void *g2h(CPUState *cs, abi_ptr x) +static inline void *g2h(CPUState *cs, vaddr x) { return g2h_untagged(cpu_untagged_addr(cs, x)); } -static inline bool guest_addr_valid_untagged(abi_ulong x) +static inline bool guest_addr_valid_untagged(vaddr x) { - return x <= GUEST_ADDR_MAX; + return x <= guest_addr_max; } -static inline bool guest_range_valid_untagged(abi_ulong start, abi_ulong len) +static inline bool guest_range_valid_untagged(vaddr start, vaddr len) { - return len - 1 <= GUEST_ADDR_MAX && start <= GUEST_ADDR_MAX - len + 1; + return len - 1 <= guest_addr_max && start <= guest_addr_max - len + 1; } #define h2g_valid(x) \ - (HOST_LONG_BITS <= TARGET_VIRT_ADDR_SPACE_BITS || \ - (uintptr_t)(x) - guest_base <= GUEST_ADDR_MAX) + ((uintptr_t)(x) - guest_base <= guest_addr_max) #define h2g_nocheck(x) ({ \ uintptr_t __ret = (uintptr_t)(x) - guest_base; \ - (abi_ptr)__ret; \ + (vaddr)__ret; \ }) #define h2g(x) ({ \ diff --git a/include/user/page-protection.h b/include/user/page-protection.h index d5c8748d49..4bde664e4a 100644 --- a/include/user/page-protection.h +++ b/include/user/page-protection.h @@ -12,13 +12,12 @@ #error Cannot include this header from system emulation #endif -#include "cpu-param.h" -#include "exec/target_long.h" +#include "exec/vaddr.h" #include "exec/translation-block.h" -int page_unprotect(tb_page_addr_t address, uintptr_t pc); +int page_unprotect(CPUState *cpu, tb_page_addr_t address, uintptr_t pc); -int page_get_flags(target_ulong address); +int page_get_flags(vaddr address); /** * page_set_flags: @@ -31,9 +30,9 @@ int page_get_flags(target_ulong address); * The flag PAGE_WRITE_ORG is positioned automatically depending * on PAGE_WRITE. The mmap_lock should already be held. */ -void page_set_flags(target_ulong start, target_ulong last, int flags); +void page_set_flags(vaddr start, vaddr last, int flags); -void page_reset_target_data(target_ulong start, target_ulong last); +void page_reset_target_data(vaddr start, vaddr last); /** * page_check_range @@ -45,7 +44,7 @@ void page_reset_target_data(target_ulong start, target_ulong last); * Return false if any page is unmapped. Thus testing flags == 0 is * equivalent to testing for flags == PAGE_VALID. */ -bool page_check_range(target_ulong start, target_ulong last, int flags); +bool page_check_range(vaddr start, vaddr last, int flags); /** * page_check_range_empty: @@ -57,7 +56,7 @@ bool page_check_range(target_ulong start, target_ulong last, int flags); * The memory lock must be held so that the caller will can ensure * the result stays true until a new mapping can be installed. */ -bool page_check_range_empty(target_ulong start, target_ulong last); +bool page_check_range_empty(vaddr start, vaddr last); /** * page_find_range_empty @@ -71,26 +70,25 @@ bool page_check_range_empty(target_ulong start, target_ulong last); * The memory lock must be held, as the caller will want to ensure * the returned range stays empty until a new mapping can be installed. */ -target_ulong page_find_range_empty(target_ulong min, target_ulong max, - target_ulong len, target_ulong align); +vaddr page_find_range_empty(vaddr min, vaddr max, vaddr len, vaddr align); /** - * page_get_target_data(address) + * page_get_target_data * @address: guest virtual address + * @size: per-page size * - * Return TARGET_PAGE_DATA_SIZE bytes of out-of-band data to associate + * Return @size bytes of out-of-band data to associate * with the guest page at @address, allocating it if necessary. The * caller should already have verified that the address is valid. + * The value of @size must be the same for every call. * * The memory will be freed when the guest page is deallocated, * e.g. with the munmap system call. */ __attribute__((returns_nonnull)) -void *page_get_target_data(target_ulong address); - -typedef int (*walk_memory_regions_fn)(void *, target_ulong, - target_ulong, unsigned long); +void *page_get_target_data(vaddr address, size_t size); +typedef int (*walk_memory_regions_fn)(void *, vaddr, vaddr, int); int walk_memory_regions(void *, walk_memory_regions_fn); void page_dump(FILE *f); |