haraldwolff/qemu-patch-raspberry4
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ppc: Use a helper to generate "LE unsupported" alignment interrupts

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Some operations aren't allowed in LE mode, use a helper rather than
open coding the exception generation.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
Benjamin Herrenschmidt 2016-07-27 16:56:47 +10:00 committed by David Gibson
parent 5f2a625452
commit 65f2475f1f
1 changed files with 8 additions and 3 deletions
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11
target-ppc/translate.c
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@ -2427,6 +2427,12 @@ static inline void gen_check_align(DisasContext *ctx, TCGv EA, int mask)
tcg_temp_free(t0);
}
static inline void gen_align_no_le(DisasContext *ctx)
{
gen_exception_err(ctx, POWERPC_EXCP_ALIGN,
(ctx->opcode & 0x03FF0000) | POWERPC_EXCP_ALIGN_LE);
}
/*** Integer load ***/
static inline void gen_qemu_ld8u(DisasContext *ctx, TCGv arg1, TCGv arg2)
{
@ -2647,10 +2653,9 @@ static void gen_lq(DisasContext *ctx)
}
if (!le_is_supported && ctx->le_mode) {
gen_exception_err(ctx, POWERPC_EXCP_ALIGN, POWERPC_EXCP_ALIGN_LE);
gen_align_no_le(ctx);
return;
}
ra = rA(ctx->opcode);
rd = rD(ctx->opcode);
if (unlikely((rd & 1) || rd == ra)) {
@ -2781,7 +2786,7 @@ static void gen_std(DisasContext *ctx)
}
if (!le_is_supported && ctx->le_mode) {
gen_exception_err(ctx, POWERPC_EXCP_ALIGN, POWERPC_EXCP_ALIGN_LE);
gen_align_no_le(ctx);
return;
}