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| author | bellard <bellard@c046a42c-6fe2-441c-8c8c-71466251a162> | 2004-02-07 20:42:14 +0000 |
|---|---|---|
| committer | bellard <bellard@c046a42c-6fe2-441c-8c8c-71466251a162> | 2004-02-07 20:42:14 +0000 |
| commit | 34f715e754adad52939d7b187fec655ddf3e0ba8 (patch) | |
| tree | 37e98ceff31fd7674741cf585829a3c229e36b07 /target-i386 | |
| parent | cae61cef8976a819e590df66068f056e758c7429 (diff) | |
| download | qemu-34f715e754adad52939d7b187fec655ddf3e0ba8.zip qemu-34f715e754adad52939d7b187fec655ddf3e0ba8.tar.gz qemu-34f715e754adad52939d7b187fec655ddf3e0ba8.tar.bz2 | |
fixed WP semantics
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@606 c046a42c-6fe2-441c-8c8c-71466251a162
Diffstat (limited to 'target-i386')
| -rw-r--r-- | target-i386/helper2.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/target-i386/helper2.c b/target-i386/helper2.c index 47a93cd..f5c31d0 100644 --- a/target-i386/helper2.c +++ b/target-i386/helper2.c @@ -320,7 +320,7 @@ int cpu_x86_handle_mmu_fault(CPUX86State *env, uint32_t addr, if (is_write && !(pde & PG_RW_MASK)) goto do_fault_protect; } else { - if ((env->cr[0] & CR0_WP_MASK) && (pde & PG_USER_MASK) && + if ((env->cr[0] & CR0_WP_MASK) && is_write && !(pde & PG_RW_MASK)) goto do_fault_protect; } @@ -358,7 +358,7 @@ int cpu_x86_handle_mmu_fault(CPUX86State *env, uint32_t addr, if (is_write && !(ptep & PG_RW_MASK)) goto do_fault_protect; } else { - if ((env->cr[0] & CR0_WP_MASK) && (ptep & PG_USER_MASK) && + if ((env->cr[0] & CR0_WP_MASK) && is_write && !(ptep & PG_RW_MASK)) goto do_fault_protect; } @@ -382,7 +382,7 @@ int cpu_x86_handle_mmu_fault(CPUX86State *env, uint32_t addr, if (ptep & PG_RW_MASK) prot |= PROT_WRITE; } else { - if (!(env->cr[0] & CR0_WP_MASK) || !(ptep & PG_USER_MASK) || + if (!(env->cr[0] & CR0_WP_MASK) || (ptep & PG_RW_MASK)) prot |= PROT_WRITE; } |