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Handle all MMU models in switches, even if it's just to abort because of lack

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of supporting code.
Implement 74xx software TLB model.
Keep 74xx with software TLB disabled, as Linux is not able to handle TLB miss
  on those processors.


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3307 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
j_mayer 2007-10-01 05:16:57 +00:00
parent 578bb25230
commit 7dbe11acd8
5 changed files with 169 additions and 10 deletions
Download patch file Download diff file Expand all files Collapse all files

35
target-ppc/translate.c
View file

@ -4299,7 +4299,7 @@ GEN_HANDLER(mfrom, 0x1F, 0x09, 0x08, 0x03E0F801, PPC_602_SPEC)
/* 602 - 603 - G2 TLB management */
/* tlbld */
GEN_HANDLER(tlbld, 0x1F, 0x12, 0x1E, 0x03FF0001, PPC_6xx_TLB)
GEN_HANDLER(tlbld_6xx, 0x1F, 0x12, 0x1E, 0x03FF0001, PPC_6xx_TLB)
{
#if defined(CONFIG_USER_ONLY)
GEN_EXCP_PRIVOPC(ctx);
@ -4314,7 +4314,7 @@ GEN_HANDLER(tlbld, 0x1F, 0x12, 0x1E, 0x03FF0001, PPC_6xx_TLB)
}
/* tlbli */
GEN_HANDLER(tlbli, 0x1F, 0x12, 0x1F, 0x03FF0001, PPC_6xx_TLB)
GEN_HANDLER(tlbli_6xx, 0x1F, 0x12, 0x1F, 0x03FF0001, PPC_6xx_TLB)
{
#if defined(CONFIG_USER_ONLY)
GEN_EXCP_PRIVOPC(ctx);
@ -4328,6 +4328,37 @@ GEN_HANDLER(tlbli, 0x1F, 0x12, 0x1F, 0x03FF0001, PPC_6xx_TLB)
#endif
}
/* 74xx TLB management */
/* tlbld */
GEN_HANDLER(tlbld_74xx, 0x1F, 0x12, 0x1E, 0x03FF0001, PPC_74xx_TLB)
{
#if defined(CONFIG_USER_ONLY)
GEN_EXCP_PRIVOPC(ctx);
#else
if (unlikely(!ctx->supervisor)) {
GEN_EXCP_PRIVOPC(ctx);
return;
}
gen_op_load_gpr_T0(rB(ctx->opcode));
gen_op_74xx_tlbld();
#endif
}
/* tlbli */
GEN_HANDLER(tlbli_74xx, 0x1F, 0x12, 0x1F, 0x03FF0001, PPC_74xx_TLB)
{
#if defined(CONFIG_USER_ONLY)
GEN_EXCP_PRIVOPC(ctx);
#else
if (unlikely(!ctx->supervisor)) {
GEN_EXCP_PRIVOPC(ctx);
return;
}
gen_op_load_gpr_T0(rB(ctx->opcode));
gen_op_74xx_tlbli();
#endif
}
/* POWER instructions not in PowerPC 601 */
/* clf */
GEN_HANDLER(clf, 0x1F, 0x16, 0x03, 0x03E00000, PPC_POWER)