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target/ppc: add LPCR[HR] to DisasContext and hflags

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Add a Host Radix field (hr) in DisasContext with LPCR[HR] value to allow
us to decide between Radix and HPT while validating instructions
arguments. Note that PowerISA v3.1 does not require LPCR[HR] and PATE.HR
to match if the thread is in ultravisor/hypervisor real addressing mode,
so ctx->hr may be invalid if ctx->hv and ctx->dr are set.

Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Message-Id: <20210917114751.206845-2-matheus.ferst@eldorado.org.br>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
Matheus Ferst 2021-09-17 08:47:50 -03:00 • committed by David Gibson
parent 7279810b67
commit 1db3632a14
3 changed files with 6 additions and 0 deletions
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3
target/ppc/helper_regs.c
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@ -106,6 +106,9 @@ static uint32_t hreg_compute_hflags_value(CPUPPCState *env)
if (env->spr[SPR_LPCR] & LPCR_GTSE) {
hflags |= 1 << HFLAGS_GTSE;
}
if (env->spr[SPR_LPCR] & LPCR_HR) {
hflags |= 1 << HFLAGS_HR;
}
#ifndef CONFIG_USER_ONLY
if (!env->has_hv_mode || (msr & (1ull << MSR_HV))) {