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target/microblaze: Reduce linux-user address space to 32-bit

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User-space programs cannot use the 64-bit lwea/swea instructions.
We can improve code generation and runtime by restricting the
user-only address space to 32-bit.

Tested-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2020-08-25 12:37:12 -07:00
parent e269b4bdf2
commit 19f27b6c24
4 changed files with 45 additions and 4 deletions
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2
target/microblaze/cpu.h
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@ -242,7 +242,7 @@ struct CPUMBState {
uint32_t pc;
uint32_t msr; /* All bits of MSR except MSR[C] and MSR[CC] */
uint32_t msr_c; /* MSR[C], in low bit; other bits must be 0 */
uint64_t ear;
target_ulong ear;
uint32_t esr;
uint32_t fsr;
uint32_t btr;