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target/mips: Add implementation of GINVT instruction

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Implement emulation of GINVT instruction. As QEMU doesn't support
caches and virtualization, this implementation covers only one
instruction (GINVT - Global Invalidate TLB) among all TLB-related
MIPS instructions.

Reviewed-by: Aleksandar Rikalo <aleksandar.rikalo@rt-rk.com>
Signed-off-by: Yongbok Kim <yongbok.kim@mips.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Message-Id: <1579883929-1517-5-git-send-email-aleksandar.markovic@rt-rk.com>
This commit is contained in:
Yongbok Kim 2019-12-20 10:29:34 +01:00 • committed by Aleksandar Markovic
parent feafe82cc2
commit 99029be1c2
7 changed files with 184 additions and 26 deletions
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2
target/mips/helper.h
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@ -120,6 +120,7 @@ DEF_HELPER_2(mtc0_tcschefback, void, env, tl)
DEF_HELPER_2(mttc0_tcschefback, void, env, tl)
DEF_HELPER_2(mtc0_entrylo1, void, env, tl)
DEF_HELPER_2(mtc0_context, void, env, tl)
DEF_HELPER_2(mtc0_memorymapid, void, env, tl)
DEF_HELPER_2(mtc0_pagemask, void, env, tl)
DEF_HELPER_2(mtc0_pagegrain, void, env, tl)
DEF_HELPER_2(mtc0_segctl0, void, env, tl)
@ -376,6 +377,7 @@ DEF_HELPER_1(ei, tl, env)
DEF_HELPER_1(eret, void, env)
DEF_HELPER_1(eretnc, void, env)
DEF_HELPER_1(deret, void, env)
DEF_HELPER_3(ginvt, void, env, tl, i32)
#endif /* !CONFIG_USER_ONLY */
DEF_HELPER_1(rdhwr_cpunum, tl, env)
DEF_HELPER_1(rdhwr_synci_step, tl, env)