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target-i386: fix kernel accesses with SMAP and CPL = 3

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With SMAP, implicit kernel accesses from user mode always behave as
if AC=0.  To do this, kernel mode is not anymore a separate MMU mode.
Instead, KERNEL_IDX is renamed to KSMAP_IDX and the kernel mode accessors
wrap KSMAP_IDX and KNOSMAP_IDX.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini 2014-03-28 11:43:45 +01:00
parent 81cf8d8adc
commit 8a201bd47e
3 changed files with 33 additions and 8 deletions
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18
target-i386/seg_helper.c
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@ -34,6 +34,24 @@
# define LOG_PCALL_STATE(cpu) do { } while (0)
#endif
#ifndef CONFIG_USER_ONLY
#define CPU_MMU_INDEX (cpu_mmu_index_kernel(env))
#define MEMSUFFIX _kernel
#define DATA_SIZE 1
#include "exec/cpu_ldst_template.h"
#define DATA_SIZE 2
#include "exec/cpu_ldst_template.h"
#define DATA_SIZE 4
#include "exec/cpu_ldst_template.h"
#define DATA_SIZE 8
#include "exec/cpu_ldst_template.h"
#undef CPU_MMU_INDEX
#undef MEMSUFFIX
#endif
/* return non zero if error */
static inline int load_segment(CPUX86State *env, uint32_t *e1_ptr,
uint32_t *e2_ptr, int selector)