unicorn/qemu/target
Peter Maydell 12248b8685
target/arm: Provide accessor functions for HCR_EL2.{IMO, FMO, AMO}
The IMO, FMO and AMO bits in HCR_EL2 are defined to "behave as
1 for all purposes other than direct reads" if HCR_EL2.TGE
is set and HCR_EL2.E2H is 0, and to "behave as 0 for all
purposes other than direct reads" if HCR_EL2.TGE is set
and HRC_EL2.E2H is 1.

To avoid having to check E2H and TGE everywhere where we test IMO and
FMO, provide accessors arm_hcr_el2_imo(), arm_hcr_el2_fmo()and
arm_hcr_el2_amo(). We don't implement ARMv8.1-VHE yet, so the E2H
case will never be true, but we include the logic to save effort when
we eventually do get to that.

(Note that in several of these callsites the change doesn't
actually make a difference as either the callsite is handling
TGE specially anyway, or the CPU can't get into that situation
with TGE set; we change everywhere for consistency.)

Backports commit ac656b166b57332ee397e9781810c956f4f5fde5 from qemu
2018-08-16 06:41:45 -04:00
..
arm target/arm: Provide accessor functions for HCR_EL2.{IMO, FMO, AMO} 2018-08-16 06:41:45 -04:00
i386 i386: implement MSR_SMI_COUNT for TCG 2018-08-02 21:27:08 -04:00
m68k target/m68k: Merge disas_m68k_insn into m68k_tr_translate_insn 2018-06-15 11:40:18 -04:00
mips target/mips: Fix data type for offset 2018-07-03 01:01:09 -04:00
sparc tcg: Pass tb and index to tcg_gen_exit_tb separately 2018-06-07 11:56:32 -04:00