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x=1612055350; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=Ljs168UZUBbo6dIZ8/dJdfkn8W0XiTlZFPUCVAmDteA=; b=Ci+5HvekCRGb3m5Bo9jKQKtshR4IHHu1wstCYx8iep/euHn5fNkIB2p1 bqjxRP2i4Yw5Gg8bHuiOFyheS9BxbvVaxmhQEsWRg3VM3mEo+HkZNsxA0 EJUdkJWg06kxigwm0Av9YLcWSQ8WyNE+Nzvjf8Wod+eBMEoQzuvh2SjUb /fmIkjTKaOVEuB5XYS33jJ5E8X549Sa5Alv7mjVQG1doulhCrevxDdMYy YQnjP4w0M2qvc0Z/00X1ySQ4tElxSLp5HRYnHqAlcFZtAI2zlCDRSJL5Y br/za+fgEyzDigJ1jQgn8qnVdyVsOvhm+WTV1i2naOgfJafPcDiPqb7JD g==; IronPort-SDR: 3WNXANfKrM+n6JSPvVC2Uq+bddaXQWebHlwi5FkWbux14TWq3UqH1ORuer+GbDcnr+tGeb6Qux wE/K4Rq8LthMb05J/8ffsykmZz407a+Yp4CFzOLYqzgfO1ON1eX912hh/6Joe9M7AkNtzaEFUz RU5+kTT9iSG/Lx0S3IjVn3t+MIKIVm/V2vMj9FiCBbAqSlr+k2ug/JmG/XZjCbuVG+GyNQTyhX NUTpDGk2AoZQ9FbeacpCKgALqcEZG/pcxACQgipzArg7BL/ylD2pccXL2W1kR3bEYZhtfZBiEs WCs= X-IronPort-AV: E=Sophos;i="5.70,388,1574092800"; d="scan'208";a="128872467" IronPort-SDR: L5dOPhmSK2EpcWFqR04x3vBxpo2zJsV5liMMnhwdGlgCeWF8lBl/C8lJwX1p+eZfM1UZemxxJE B6k9H/VVnPYdOb4eYdOFUsPk0rrwA+Tmq4iLCv8wh93S9z1t5fW4EgfE8uMvpvb+yJVqtkJ/zL vISBrqK9NHB4GBzzzns8J7dFnxIiKJ8D/RBNgva/qyDwyGwPIoGnBvDB+wZcjg0O62NP/usmBo 2T6+XAOO3pEZ4+5wFcNdnYgNwTWH791hbLuzX5AvafC9ZZYOrbd0ODFwUT4Fr4th9TcumbOPCt Osn38WZtxa2uDL2cV2POIROQ IronPort-SDR: arEM/C97mZQZQWiCh3DZCE9iMG5UO787EIFCJ96BijLGwG4FrEB9vf0mye8+2VejRRbQd4BBbR rfb7nkWVFuaIAorTFCsRtrpsdk+Gqt7suhbYxy6zaaF+bfCl9feNVdyAxC5CFv4zsfDKvz9cvb SvT2S+QjmwTwr8YssnFXRuT5mmTkRk3SjtwgVDY4Lta+qhRWoNYu6x/hyz1apb1P0PhD01TlyS qeGj8EeIgV5ie0zGq0gpjJwOci6CJ7TDAi+IAfNJ9c5kUXz5xmiZiauLzaBpIG+9JVuqyR6BZQ VVA= WDCIronportException: Internal From: Alistair Francis To: qemu-devel@nongnu.org, qemu-riscv@nongnu.org Subject: [PATCH v2 17/35] target/riscv: Extend the SIP CSR to support virtulisation Date: Fri, 31 Jan 2020 17:02:20 -0800 Message-Id: <39eac165cde84450279a4cbb887437fefe75fa04.1580518859.git.alistair.francis@wdc.com> X-Mailer: git-send-email 2.25.0 In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: FreeBSD 9.x [fuzzy] X-Received-From: 216.71.154.42 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: alistair.francis@wdc.com, palmer@dabbelt.com, alistair23@gmail.com Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Type: text/plain; charset="utf-8" Signed-off-by: Alistair Francis Reviewed-by: Palmer Dabbelt --- target/riscv/csr.c | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) diff --git a/target/riscv/csr.c b/target/riscv/csr.c index 918678789a..2e6700bbeb 100644 --- a/target/riscv/csr.c +++ b/target/riscv/csr.c @@ -743,8 +743,19 @@ static int write_sbadaddr(CPURISCVState *env, int csrn= o, target_ulong val) static int rmw_sip(CPURISCVState *env, int csrno, target_ulong *ret_value, target_ulong new_value, target_ulong write_mask) { - int ret =3D rmw_mip(env, CSR_MSTATUS, ret_value, new_value, + int ret; + + if (riscv_cpu_virt_enabled(env)) { + /* Shift the new values to line up with the VS bits */ + ret =3D rmw_mip(env, CSR_MSTATUS, ret_value, new_value << 1, + (write_mask & sip_writable_mask) << 1 & env->mideleg= ); + ret &=3D vsip_writable_mask; + ret >>=3D 1; + } else { + ret =3D rmw_mip(env, CSR_MSTATUS, ret_value, new_value, write_mask & env->mideleg & sip_writable_mask); + } + *ret_value &=3D env->mideleg; return ret; } --=20 2.25.0