mirrors/qemu
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

tcg: Factor out CONFIG_USER_ONLY probe_write() from s390x code

Browse Source 
Factor it out into common code. Similar to the !CONFIG_USER_ONLY variant,
let's not allow to cross page boundaries.

Signed-off-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20190826075112.25637-4-david@redhat.com>
[rth: Move cpu & cc variables inside if block.]
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
David Hildenbrand 2019-08-26 09:51:08 +02:00 committed by Richard Henderson
parent 4675012863
commit 59e96ac6cb
3 changed files with 16 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
accel/tcg/user-exec.c
View File

@ -188,6 +188,20 @@ static inline int handle_cpu_signal(uintptr_t pc, siginfo_t *info,
g_assert_not_reached();
}
void probe_write(CPUArchState *env, target_ulong addr, int size, int mmu_idx,
uintptr_t retaddr)
{
if (!guest_addr_valid(addr) ||
page_check_range(addr, size, PAGE_WRITE) < 0) {
CPUState *cpu = env_cpu(env);
CPUClass *cc = CPU_GET_CLASS(cpu);
cc->tlb_fill(cpu, addr, size, MMU_DATA_STORE, MMU_USER_IDX, false,
retaddr);
g_assert_not_reached();
}
}
#if defined(__i386__)
#if defined(__NetBSD__)

4
include/exec/exec-all.h
View File

@ -260,8 +260,6 @@ void tlb_set_page_with_attrs(CPUState *cpu, target_ulong vaddr,
void tlb_set_page(CPUState *cpu, target_ulong vaddr,
hwaddr paddr, int prot,
int mmu_idx, target_ulong size);
void probe_write(CPUArchState *env, target_ulong addr, int size, int mmu_idx,
uintptr_t retaddr);
#else
static inline void tlb_init(CPUState *cpu)
{
@ -312,6 +310,8 @@ static inline void tlb_flush_by_mmuidx_all_cpus_synced(CPUState *cpu,
{
}
#endif
void probe_write(CPUArchState *env, target_ulong addr, int size, int mmu_idx,
uintptr_t retaddr);
#define CODE_GEN_ALIGN 16 /* must be >= of the size of a icache line */

7
target/s390x/mem_helper.c
View File

@ -2615,12 +2615,6 @@ uint32_t HELPER(cu42)(CPUS390XState *env, uint32_t r1, uint32_t r2, uint32_t m3)
void probe_write_access(CPUS390XState *env, uint64_t addr, uint64_t len,
uintptr_t ra)
{
#ifdef CONFIG_USER_ONLY
if (!guest_addr_valid(addr) || !guest_addr_valid(addr + len - 1) ||
page_check_range(addr, len, PAGE_WRITE) < 0) {
s390_program_interrupt(env, PGM_ADDRESSING, ILEN_AUTO, ra);
}
#else
/* test the actual access, not just any access to the page due to LAP */
while (len) {
const uint64_t pagelen = -(addr | TARGET_PAGE_MASK);
@ -2630,7 +2624,6 @@ void probe_write_access(CPUS390XState *env, uint64_t addr, uint64_t len,
addr = wrap_address(env, addr + curlen);
len -= curlen;
}
#endif
}
void HELPER(probe_write_access)(CPUS390XState *env, uint64_t addr, uint64_t len)