Stop taking TARGET_VIRT_ADDR_SPACE_BITS into account. Since we currently bound CPU_TLB_DYN_MAX_BITS to 22, the new bound with a 4k page size is 20, which isn't so different.
Signed-off-by: Richard Henderson <richard.hender...@linaro.org> --- accel/tcg/tlb-bounds.h | 21 +-------------------- 1 file changed, 1 insertion(+), 20 deletions(-) diff --git a/accel/tcg/tlb-bounds.h b/accel/tcg/tlb-bounds.h index efd34d4793..f83d9ac9ee 100644 --- a/accel/tcg/tlb-bounds.h +++ b/accel/tcg/tlb-bounds.h @@ -7,26 +7,7 @@ #define ACCEL_TCG_TLB_BOUNDS_H #define CPU_TLB_DYN_MIN_BITS 6 +#define CPU_TLB_DYN_MAX_BITS (32 - TARGET_PAGE_BITS) #define CPU_TLB_DYN_DEFAULT_BITS 8 -# if HOST_LONG_BITS == 32 -/* Make sure we do not require a double-word shift for the TLB load */ -# define CPU_TLB_DYN_MAX_BITS (32 - TARGET_PAGE_BITS) -# else /* HOST_LONG_BITS == 64 */ -/* - * Assuming TARGET_PAGE_BITS==12, with 2**22 entries we can cover 2**(22+12) == - * 2**34 == 16G of address space. This is roughly what one would expect a - * TLB to cover in a modern (as of 2018) x86_64 CPU. For instance, Intel - * Skylake's Level-2 STLB has 16 1G entries. - * Also, make sure we do not size the TLB past the guest's address space. - */ -# ifdef TARGET_PAGE_BITS_VARY -# define CPU_TLB_DYN_MAX_BITS \ - MIN(22, TARGET_VIRT_ADDR_SPACE_BITS - TARGET_PAGE_BITS) -# else -# define CPU_TLB_DYN_MAX_BITS \ - MIN_CONST(22, TARGET_VIRT_ADDR_SPACE_BITS - TARGET_PAGE_BITS) -# endif -# endif - #endif /* ACCEL_TCG_TLB_BOUNDS_H */ -- 2.43.0
