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linux-user/sh4: Reduce TARGET_VIRT_ADDR_SPACE_BITS to 31 

The real kernel has TASK_SIZE as 0x7c000000, due to quirks with
a couple of SH parts.  But nominally user-space is limited to 2GB.

Signed-off-by: Richard Henderson <rth@twiddle.net>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20170708025030.15845-4-rth@twiddle.net>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
This commit is contained in:
Richard Henderson 2017-10-05 10:36:01 -04:00 committed by Riku Voipio
parent 18e80c55bb
commit cc1b3960a1
1 changed files with 5 additions and 1 deletions
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6
target/sh4/cpu.h
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@ -45,7 +45,11 @@
#define TARGET_PAGE_BITS 12 /* 4k XXXXX */
#define TARGET_PHYS_ADDR_SPACE_BITS 32
#define TARGET_VIRT_ADDR_SPACE_BITS 32
#ifdef CONFIG_USER_ONLY
# define TARGET_VIRT_ADDR_SPACE_BITS 31
#else
# define TARGET_VIRT_ADDR_SPACE_BITS 32
#endif
#define SR_MD 30
#define SR_RB 29