| commit | 90f641531c782c873a05895f411c05fbbbef3c49 | |
| author | Paolo Bonzini <pbonzini@redhat.com> | |
| Tue, 2 Jan 2024 14:40:18 +0000 (2 15:40 +0100) | ||
| committer | Paolo Bonzini <pbonzini@redhat.com> | |
| Tue, 27 Feb 2024 23:23:39 +0000 (28 00:23 +0100) | ||
| tree | d2cd3320f85604ac5ef9f03fad94edddccaacb24 | treesnapshot (tar.gz zip) |
| parent | 5f97afe2543f09160a8d123ab6e2e8c6d98fa9ce | commitdiff |
target/i386: use separate MMU indexes for 32-bit accesses
Accesses from a 32-bit environment (32-bit code segment for instruction
accesses, EFER.LMA==0 for processor accesses) have to mask away the
upper 32 bits of the address. While a bit wasteful, the easiest way
to do so is to use separate MMU indexes. These days, QEMU anyway is
compiled with a fixed value for NB_MMU_MODES. Split MMU_USER_IDX,
MMU_KSMAP_IDX and MMU_KNOSMAP_IDX in two.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Accesses from a 32-bit environment (32-bit code segment for instruction
accesses, EFER.LMA==0 for processor accesses) have to mask away the
upper 32 bits of the address. While a bit wasteful, the easiest way
to do so is to use separate MMU indexes. These days, QEMU anyway is
compiled with a fixed value for NB_MMU_MODES. Split MMU_USER_IDX,
MMU_KSMAP_IDX and MMU_KNOSMAP_IDX in two.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
| target/i386/cpu.c | diffblobblamehistory | |
| target/i386/cpu.h | diffblobblamehistory | |
| target/i386/tcg/sysemu/excp_helper.c | diffblobblamehistory |