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ppc: Use a helper to filter writes to LPCR

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This handles filtering bits based on what is implemented by a
given architecture version. We also use it to copy to LPCR
some of the relevant 970 HID4 bits.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
[clg: fixed checkpatch.pl errors ]
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
Benjamin Herrenschmidt 2016-06-27 08:55:16 +02:00 • committed by David Gibson
parent 88536935c0
commit 4b3fc37788
3 changed files with 95 additions and 19 deletions
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56
target-ppc/translate_init.c
View file

@ -7525,16 +7525,6 @@ static void gen_spr_970_hior(CPUPPCState *env)
0x00000000);
}
static void gen_spr_970_lpar(CPUPPCState *env)
{
/* Logical partitionning */
/* PPC970: HID4 is effectively the LPCR */
spr_register(env, SPR_970_HID4, "HID4",
SPR_NOACCESS, SPR_NOACCESS,
&spr_read_generic, &spr_write_generic,
0x00000000);
}
static void gen_spr_book3s_common(CPUPPCState *env)
{
spr_register(env, SPR_CTRL, "SPR_CTRL",
@ -7787,15 +7777,6 @@ static void gen_spr_power5p_ear(CPUPPCState *env)
0x00000000);
}
static void gen_spr_power5p_lpar(CPUPPCState *env)
{
/* Logical partitionning */
spr_register_kvm(env, SPR_LPCR, "LPCR",
SPR_NOACCESS, SPR_NOACCESS,
&spr_read_generic, &spr_write_generic,
KVM_REG_PPC_LPCR, LPCR_LPES0 | LPCR_LPES1);
}
#if !defined(CONFIG_USER_ONLY)
static void spr_write_hmer(DisasContext *ctx, int sprn, int gprn)
{
@ -7807,7 +7788,44 @@ static void spr_write_hmer(DisasContext *ctx, int sprn, int gprn)
spr_store_dump_spr(sprn);
tcg_temp_free(hmer);
}
static void spr_write_lpcr(DisasContext *ctx, int sprn, int gprn)
{
gen_helper_store_lpcr(cpu_env, cpu_gpr[gprn]);
}
static void spr_write_970_hid4(DisasContext *ctx, int sprn, int gprn)
{
#if defined(TARGET_PPC64)
spr_write_generic(ctx, sprn, gprn);
gen_helper_store_lpcr(cpu_env, cpu_gpr[gprn]);
#endif
}
#endif /* !defined(CONFIG_USER_ONLY) */
static void gen_spr_970_lpar(CPUPPCState *env)
{
#if !defined(CONFIG_USER_ONLY)
/* Logical partitionning */
/* PPC970: HID4 is effectively the LPCR */
spr_register(env, SPR_970_HID4, "HID4",
SPR_NOACCESS, SPR_NOACCESS,
&spr_read_generic, &spr_write_970_hid4,
0x00000000);
#endif
}
static void gen_spr_power5p_lpar(CPUPPCState *env)
{
#if !defined(CONFIG_USER_ONLY)
/* Logical partitionning */
spr_register_kvm(env, SPR_LPCR, "LPCR",
SPR_NOACCESS, SPR_NOACCESS,
&spr_read_generic, &spr_write_lpcr,
KVM_REG_PPC_LPCR, LPCR_LPES0 | LPCR_LPES1);
#endif
}
static void gen_spr_book3s_ids(CPUPPCState *env)
{