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envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2607:f8b0:4864:20::1032; envelope-from=richard.henderson@linaro.org; helo=mail-pj1-x1032.google.com X-Spam_score_int: -12 X-Spam_score: -1.3 X-Spam_bar: - X-Spam_report: (-1.3 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, PDS_HP_HELO_NORDNS=0.001, RCVD_IN_DNSWL_NONE=-0.0001, RDNS_NONE=0.793, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: pass (identity @linaro.org) X-ZM-MESSAGEID: 1639005262516100001 Content-Type: text/plain; charset="utf-8" Signed-off-by: Richard Henderson Reviewed-by: Peter Maydell --- target/arm/cpu-param.h | 2 +- target/arm/cpu64.c | 2 +- target/arm/helper.c | 19 ++++++++++++++++--- 3 files changed, 18 insertions(+), 5 deletions(-) diff --git a/target/arm/cpu-param.h b/target/arm/cpu-param.h index 5f9c288b1a..b59d505761 100644 --- a/target/arm/cpu-param.h +++ b/target/arm/cpu-param.h @@ -10,7 +10,7 @@ =20 #ifdef TARGET_AARCH64 # define TARGET_LONG_BITS 64 -# define TARGET_PHYS_ADDR_SPACE_BITS 48 +# define TARGET_PHYS_ADDR_SPACE_BITS 52 # define TARGET_VIRT_ADDR_SPACE_BITS 52 #else # define TARGET_LONG_BITS 32 diff --git a/target/arm/cpu64.c b/target/arm/cpu64.c index f44ee643ef..3bb79ca744 100644 --- a/target/arm/cpu64.c +++ b/target/arm/cpu64.c @@ -739,7 +739,7 @@ static void aarch64_max_initfn(Object *obj) cpu->isar.id_aa64pfr1 =3D t; =20 t =3D cpu->isar.id_aa64mmfr0; - t =3D FIELD_DP64(t, ID_AA64MMFR0, PARANGE, 5); /* PARange: 48 bits= */ + t =3D FIELD_DP64(t, ID_AA64MMFR0, PARANGE, 6); /* FEAT_LPA: 52 bit= s */ cpu->isar.id_aa64mmfr0 =3D t; =20 t =3D cpu->isar.id_aa64mmfr1; diff --git a/target/arm/helper.c b/target/arm/helper.c index 6a59975028..e39c1f5b3a 100644 --- a/target/arm/helper.c +++ b/target/arm/helper.c @@ -11095,6 +11095,7 @@ static const uint8_t pamax_map[] =3D { [3] =3D 42, [4] =3D 44, [5] =3D 48, + [6] =3D 52, }; =20 /* The cpu-specific constant value of PAMax; also used by hw/arm/virt. */ @@ -11472,11 +11473,15 @@ static bool get_phys_addr_lpae(CPUARMState *env, = uint64_t address, descaddr =3D extract64(ttbr, 0, 48); =20 /* - * If the base address is out of range, raise AddressSizeFault. + * For FEAT_LPA and PS=3D6, bits [51:48] of descaddr are in [5:2] of T= TBR. + * + * Otherwise, if the base address is out of range, raise AddressSizeFa= ult. * In the pseudocode, this is !IsZero(baseregister<47:outputsize>), * but we've just cleared the bits above 47, so simplify the test. */ - if (descaddr >> outputsize) { + if (outputsize > 48) { + descaddr |=3D extract64(ttbr, 2, 4) << 48; + } else if (descaddr >> outputsize) { level =3D 0; fault_type =3D ARMFault_AddressSize; goto do_fault; @@ -11526,7 +11531,15 @@ static bool get_phys_addr_lpae(CPUARMState *env, u= int64_t address, } =20 descaddr =3D descriptor & descaddrmask; - if (descaddr >> outputsize) { + + /* + * For FEAT_LPA and PS=3D6, bits [51:48] of descaddr are in [15:12] + * of descriptor. Otherwise, if descaddr is out of range, raise + * AddressSizeFault. + */ + if (outputsize > 48) { + descaddr |=3D extract64(descriptor, 12, 4) << 48; + } else if (descaddr >> outputsize) { fault_type =3D ARMFault_AddressSize; goto do_fault; } --=20 2.25.1