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target/arm: Validate tlbi TG matches translation granule in use 

For FEAT_LPA2, we will need other ARMVAParameters, which themselves
depend on the translation granule in use.  We might as well validate
that the given TG matches; the architecture "does not require that
the instruction invalidates any entries" if this is not true.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220301215958.157011-15-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Richard Henderson 2022-03-01 11:59:54 -10:00 committed by Peter Maydell
parent d976de218c
commit 3974ff93a7
1 changed files with 7 additions and 3 deletions
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10
target/arm/helper.c
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@ -4520,12 +4520,16 @@ static TLBIRange tlbi_aa64_get_range(CPUARMState *env, ARMMMUIdx mmuidx,
uint64_t value)
{
unsigned int page_size_granule, page_shift, num, scale, exponent;
/* Extract one bit to represent the va selector in use. */
uint64_t select = sextract64(value, 36, 1);
ARMVAParameters param = aa64_va_parameters(env, select, mmuidx, true);
TLBIRange ret = { };
page_size_granule = extract64(value, 46, 2);
if (page_size_granule == 0) {
qemu_log_mask(LOG_GUEST_ERROR, "Invalid page size granule %d\n",
/* The granule encoded in value must match the granule in use. */
if (page_size_granule != (param.using64k ? 3 : param.using16k ? 2 : 1)) {
qemu_log_mask(LOG_GUEST_ERROR, "Invalid tlbi page size granule %d\n",
page_size_granule);
return ret;
}
@ -4537,7 +4541,7 @@ static TLBIRange tlbi_aa64_get_range(CPUARMState *env, ARMMMUIdx mmuidx,
ret.length = (num + 1) << (exponent + page_shift);
if (regime_has_2_ranges(mmuidx)) {
if (param.select) {
ret.base = sextract64(value, 0, 37);
} else {
ret.base = extract64(value, 0, 37);